E6581222③
TOSVERT VF-S11
Communications Function
Instruction Manual
Notice
1. Make sure that this instruction manual is delivered to the end user of the inverter.
2. Read this manual before first using the communications function, and keep it handy as a
reference for maintenance and inspections.
* The contents of this manual are subject to change without notice.
© TOSHIBA INVERTER CORPORATION 2004
All rights reserved.
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E6581222
Read first
Safety precautions
This manual and labels on the inverter provide very important information that you should bear in
mind to use the inverter properly and safely, and also to avoid injury to yourself and other people and
damage to property.
Read the safety precautions in the instruction manual for your inverter before reading this manual and
strictly follow the safety instructions given.
Reference
Notice
♦ Insert an electromagnetic contactor between the inverter and the power supply so that Inverter instruction
the machine can be stopped without fail from an external controller in case of an emer- manual
gency.
♦ Do not write the same parameter to the EEPROM more than 10,000 times. The life time Section 4.2
of EEPROM is approximately 10,000 times.(Some parameters are not limited, please “Commands”
refer to the “9.Parameter data “)
When using the TOSHIBA inverter protocol and the data does not need to be records,
use P command (the data is written only to RAM).
♦ About the handling of the inverter, please follow the instruction manual of the inverter.
1
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E6581222
Contents
1.
2.
3.
4.
General outlines of the communications function........................................................................................................ 3
Data transmission specifications................................................................................................................................. 4
Communication protocol ............................................................................................................................................. 5
TOSHIBA Inverter Protocol......................................................................................................................................... 6
4.1. Data transmission formats.................................................................................................................................. 8
4.1.1. Data transmission formats used in ASCII mode ....................................................................................... 8
4.1.2. Data transmission formats used in binary mode ..................................................................................... 11
4.1.3. Transmission Format of Block Communication....................................................................................... 14
4.2. Commands....................................................................................................................................................... 18
4.3. Transmission errors.......................................................................................................................................... 21
4.4. Broadcast communications function................................................................................................................. 22
4.5. Examples of the use of communication commands.......................................................................................... 24
4.6. Examples of RS232C communication programs.............................................................................................. 25
MODBUS-RTU protocol............................................................................................................................................ 30
5.1. MODBUS-RTU transmission format .............................................................................................................. 32
5.1.1. Read command (03) ............................................................................................................................... 32
5.1.2. Write command (06) ............................................................................................................................... 33
5.2. CRC Generation............................................................................................................................................... 34
5.3. Error codes....................................................................................................................................................... 34
Inter-drive communication......................................................................................................................................... 35
6.1. Speed proportional control ............................................................................................................................... 38
6.2. Transmission format for inter-drive communication.......................................................................................... 39
Communications parameters.................................................................................................................................... 40
7.1. Communication baud rate() , Parity bit().................................................................................. 41
7.2. Inverter number()................................................................................................................................. 41
7.3. Timer function().................................................................................................................................... 42
7.4. Setting function of communication waiting time ()................................................................................ 43
7.5. Free notes() ......................................................................................................................................... 43
Commands and monitoring from the computer......................................................................................................... 44
8.1. Communication commands (commands from the computer) ........................................................................... 44
8.2. Monitoring from the computer........................................................................................................................... 47
8.3. Control of input/output signals from communication......................................................................................... 53
8.4. Utilizing panel (LEDs and keys) by communication.......................................................................................... 56
8.4.1. LED setting by communication................................................................................................................ 56
8.4.2. Key utilization by communication............................................................................................................ 59
Parameter data......................................................................................................................................................... 60
5.
6.
7.
8.
9.
Appendix 1 Table of data codes........................................................................................................................................ 63
Appendix 2 Response time ............................................................................................................................................... 64
Appendix 3 Compatibility with the communications function of the VF-S9 ........................................................................ 65
Appendix 4 Troubleshooting.............................................................................................................................................. 66
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E6581222
1. General outlines of the communications function
This manual explains the serial communications interface function provided for the TOSVERT VF-
S11 series of industrial inverters.
The TOSVERT VF-S11 series of inverters can be connected to a computer or a controller (hereinaf-
ter referred to as the computer) for data communications via RS232C converter (RS2001Z) or
RS485 converter (RS4001Z, RS4002Z, RS4003Z). By writing computer programs, you can monitor
the operating status of the inverter, control its operation in various ways from the computer, and
change and store parameter settings on storage devices.
The communication protocol is preparing the TOSHIBA Inverter Protocol and the MODBUS-RTU
protocol. Please choose selection of a protocol with a communication protocol selection parameter
().
<Computer link>
By preparing the program (explained later), the following information can be exchanged between the
computer (host) and the inverter.
• Monitoring function (used to monitor the operating status of the inverter: Output frequency, cur-
rent, voltage, etc.)
• Command function (used to issue run, stop and other commands to the inverter)
• Parameter function (used to set parameters and read their settings)
<Inter-drive communication function>
Master inverter sends the data, that is selected by the parameter, to all the slave inverters on the
same network. This function allows a network construction in which a simple synchronous or propor-
tional operation is possible among plural inverters (without the host computer).
As for data communications codes, the TOSVERT VF-S11 series of inverters support the binary
(HEX) code, in addition to the JIS (ASCII) code. The communications function is designed on the as-
sumption that the JIS (ASCII) code is used for communications between the inverter and the person-
al computer, and the binary (HEX) code for communications between the inverter and the microcom-
puter built into the controller. A communication number is used to access the desired data item.
* The smallest unit of information that computers handle is called a “bit (binary digit),” which repre-
sents the two numbers in the binary system: 1 or 0. A group of 16 bits is referred to as a “word,”
which is the basic unit of information the VF-S11 series of inverters use for data communications.
One word can handle data items of 0 to FFFFH in hexadecimal notation (or 0 to 65535 in decimal
notation).
BIT15
BIT8BIT7
BIT0
1 bit
1 word
3
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E6581222
2. Data transmission specifications
Items
Specifications
Transmission scheme
Half-duplex
Synchronization scheme
Start-stop synchronization
*: Standard
default setting
Communication baud rate 1200/2400/4800/9600*/19200 bps (selectable using a parameter) *1
Communication protocol
Character transmission
TOSHIBA Inverter Protocol * / MODBUS-RTU
<ASCII mode> JIS X 0201 8-bit (ASCII)
<Binary mode, MODBUS-RTU> Binary codes fixed to 8 bits
Received by inverter: 1 bit, Sent by inverter: 2 bits *3
Parity *2: Even */odd/non parity (selectable using a parameter) *1
checksum(Toshiba inverter protocol), CRC(MODBUS-RTU)
Stop bit length
Error detecting scheme
,
Character
transmission 11-bit characters *1 (Stop bit=1, with parity)
format
Order of bit transmission
Frame length
Low-order bits transmitted first
Variable (to a maximum of 17 bytes)
*1: Changes to the communication baud rate and to the parity setting do not take effect until the in-
verter is turned back on or reset.
*2: JIS-X-0201 (ANSI)-compliant 8-bit codes are used for all messages transmitted in ASCII mode
and vertical (even) parity bits specified by JIS-X-5001 are added to them. These even parity bits
can be changed to odd parity bits by changing the parameter setting (a change to the parameter
setting does not take effect until the inverter has been reset.)
*3: Here are the default character transmission formats. (Standard default setting)
Characters received: 11 bits (1 start bit + 8 bits + 1 parity bit + 1 stop bit) ... Standard default setting
START
BIT
PARITY STOP
BIT BIT
BIT0
BIT1
BIT2
BIT3
BIT4
BIT5
BIT6
BIT7
The inverter receives one stop bit.
(The computer can be set so as to send 1, 1.5 or 2 stop bits.)
Characters sent: 12 bits (1 start bit + 8 bits + 1 parity bit + 2 stop bits) ... Standard default setting
START
BIT
PARITY STOP
BIT BIT
STOP
BIT
BIT0
BIT1
BIT2 BIT3
BIT4
BIT5
BIT6
BIT7
The inverter sends two stop bits.
(The computer can be set so as to receive 1, 1.5 or 2 stop bits.)
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E6581222
3. Communication protocol
This communication protocol supports the TOSHIBA Inverter Protocol and part of MODBUS-RTU
protocol.
Select the desired protocol from in the following communication protocol selection parameters
().
“Parameter Name , Communication Number. 0829”
Data Range: 0, 1 (Initial value: 0)
0: TOSHIBA Inverter Protocol (Includes inter-drive communications)
1: MOUBUS-RTU protocol
* A parameter change is reflected when the inverter is reset, such as in power off.
Note : When using the extension panel (RKP001Z) and the parameter writer (PWU001Z), be certain
to set F829=”0” : TOSHIBA inverter protocol.
5
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E6581222
4. TOSHIBA Inverter Protocol
Select “TOSHIBA Inverter Protocol” (=) in the communication protocol selection parame-
ters. “TOSHIBA Inverter Protocol” (=) is set for initial communication protocol selection of
shipment setting. (See “3. Communication protocol.”)
■ Exchange of data between the computer and the inverter
In communications between the computer and the VF-S11 (hereinafter referred to as the inverter),
the inverter is always placed in wait states and acts as a slave that operates on a request from the
computer. A start code is used to automatically identify the mode in which data is transmitted: ASCII
mode or binary mode.
A transmission error will result if the transmission format does not match.
■ ASCII mode
(1) In ASCII mode, the start code is “(”
The inverter rejects all data items entered invalid the “(” If two or more “(” are entered, the “(” en-
tered last will be valid and all “(“ entered before will be ignored. If the “(” is not recognized becau-
se of a format error or for any other reason, no error code will be returned since the data is not
recognized at all. In such cases, the inverter regards the data received as a transmission error,
rejects it and goes back into a start code wait state.
(2) When an inverter number is added behind the “(” communications will take place only in case of
broadcast communication or if the number matches up with that assigned to the inverters. If not,
the inverter will go back into a start code wait state.
(3) The inverter stops receiving data on receipt of the CR (carriage return) code inserted in the des-
ignated position.
If the size of the data transmitted exceeds the maximum allowable size (17 bytes) or if the CR
code cannot be found in the designated position within 0.5 seconds, the inverter will regard the
data received as a transmission error and go back into a start code wait state.
(4) If no communications take place within the time specified using the timer function, the computer
will regard it as a communication error and trip the inverter. The timer setting is cleared when the
timer is turned on or initialized. For more details, see Section 7.3, “Timer function.”
(5) On executing the command received, the inverter returns data to the computer. For the response
time, see Appendix 2, “Response time.”
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■ Binary mode
(1) In binary mode, the start code is “2FH(/).”
The inverter rejects all data items entered before the “2FH(/).”
If two or more “2FH(/)” are entered, the “2FH(/)” entered last will be judged valid and all “2FH(/)”
entered before will be ignored.
If the “2FH(/)” is not recognized because of a format error or for any other reason, no error code
will be returned since the data is not recognized at all. In such cases, the inverter regards the
data received as a transmission error, rejects it and goes back into a start code wait state.
(2) If an inverter number is added behind the “2FH(/),” communications will take place only in case of
broadcast communication or if the number matches up with that assigned to the inverters. If not,
the inverter will go back into a start code wait state.
(3) The inverter stops receiving data on receipt of a command and the number of bytes of data
specified by the command.
If no command is found in the data received or if the specified number of bytes of data cannot be
received within about 0.5 seconds, the inverter will regard the data received as a transmission er-
ror and go back into a start code wait state.
(4) If no communications take place within the time specified using the timer function, the computer
will assume that a communication error has occurred and trip the inverter. The timer function is
disabled when the inverter is turned on or initialized. For details, see Section 7.3, “Timer func-
tion.”
(5) On executing the command received, the inverter returns data to the computer. For the response
time, see Appendix 2, “Response time.”
■ Note
Communication is not possible for about one second after the power is supplied to the inverter until
the initial setting is completed. If the control power is shut down due to an instantaneous voltage drop,
communication is temporarily interrupted.
7
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4.1. Data transmission formats
■ Note: The term “trip status” used in this manual includes retry waiting status and trip retention status.
4.1.1. Data transmission formats used in ASCII mode
A communication number is used to specify a data item, all data is written in hexadecimal, and JIS-
X-0201 (ASCII (ANSI))-compliant transmission characters are used.
■ Computer → VF-S11
Omissible in one-to-one communications
For the W and P commands only
Omissible
")"
"("
INV-NO
2 bytes
CMD
Communication No.
4 bytes
DATA
"&"
SUM
2 bytes
CR
(28H)
1 byte
0 to 4 bytes
(26H)
(29H) (0DH)
Checksum area
Omissible
1. “(“ (1 byte)
: Start code in ASCII mode
2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00 (30H, 30H) to 99 (39H,
39h), *(2AH)
The command is executed only when the inverter number matches up with that specified
using a parameter.
(When * is specified in broadcast communications, the inverter number is assumed to
match if all numbers except * match. When * is specified instead of each digit (two-digit
number), all inverters connected are assumed to match.)
If the inverter number does not match or if the inverter number is of one digit, the data will be
judged invalid and no data will be returned.
3. CMD (1 byte)
4. Communication No.(4 bytes)
: Communication number (See 11, “Parameter data.”)
5. Data (0 to 4 bytes): Write data (valid for the W and P commands only)
: Command (For details, see the table below.)
6. “&” (1 byte)
: Checksum discrimination code (omissible. When omitting this code, you also need to omit
the checksum.)
7. Sum (2 bytes)
: Checksum (omissible)
Add the ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits
(ASCII codes) from the start code to the checksum discrimination code.
Ex.: (R0000&??) CR
28H+52H+30H+30H+30H+30H+26H=160H
The last two digits represent the checksum. = 60
When omitting the checksum, you also need to omit the checksum discrimination code.
8. “)” (1 byte)
9. CR (1 byte)
: Stop code (omissible)
: Carriage return code
■ Details of commands and data
CMD (1 byte)
Write data (0 to 4 bytes) Hexadecimal number
No data
Write data (0 to FFFF)
R (52H): RAM read command
W (57H): RAM/EEPROM write command
P (50H) RAM write command
Write data (0 to FFFF)
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■ VF-S11 → computer
At time of broadcast communication, returning of data is not executed, except for the inverters to be
returned, when the inverter number is not matched, and the inverter number has only one character.
This is because there will be a risk of that the returned data may be deformed.
• Data returned when data is processed normally (ASCII mode)
Omissible
Omissible
")" CR
"("
(28H)
INV-NO
2 bytes
CMD
1 byte
Communication No.
4 bytes
DATA
0 to 4 bytes
"&"
(26H)
SUM
2 bytes
(29H) (0DH)
Checksum area
Omissible
1. “(“ (1 byte)
: Start code in ASCII mode
2. INV-NO (2 bytes) : Inverter number (omitted if it is not found in the data received) ... 00 (30H, 30H) to 99 (39H,
39H)
If the inverter number matches up with that specified using a parameter, data will be return-
ed to the computer. In broadcast communications, only the destination inverter (with a num-
ber matching up with the smallest effective number) returns data to the computer.
In broadcast communications, no data is returned from any inverters except the inverter
bearing a number that matches up with the smallest effective number.
Ex.: (*2R0000) CR -> (02R00000000) CR)
Data is returned from the inverter with the number 2 only, but no data is returned from
inverters with the number 12, 22 ....
3. CMD (1 byte)
: Command ... The command is also used for a check when an inverter is tripped.
Under normal conditions... The uppercase letter R, W or P is returned, depending on the
command received: R, W or P command.
When an inverter is tripped... The lowercase letter r, w or p is returned, depending on the
command received: R, W or P command.
(The command received is returned with 20H added to it.)
4. Communication No.(4 bytes) :
The communication number received is returned.
5. Data (0 to 4 bytes): Data ... The data read in is returned for the R command, while the data received is returned
for the W and P commands. If the data received is composed of less than 4 digits, it will be
converted into 4-digit data and returned.
Ex.: (W123412) CR → (W12340012) CR)
6. “&” (1 byte)
: Checksum discrimination code (omitted if it is not found in the data received)
7. Sum (2 bytes)
: Checksum ... Omitted if no checksum discrimination code is found in the data received.
ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits (ASCII
codes) from the start code to the checksum discrimination code.
8. “)” (1 byte)
9. CR (1 byte)
: Stop code (omitted if it is not found in the data received)
: Carriage return code
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• Data returned when data is not processed normally (ASCII mode)
In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-
ber is returned to the computer in addition to the checksum. At time of broadcast communication of
the binary mode, returning of data is not executed except for the inverter to be returned (inverter
number 00H) and when the inverter number is not matched. This is because there will be a risk that
the returned data may be deformed.
Omissible
Omissible
“(“
(28H)
INV-NO
2 bytes
“N” or “n”
(4EH) (6EH)
DATA
4 bytes
"&"
(26H)
SUM
2 bytes
")" CR
(29H) (0DH)
Checksum area
Omissible
“(“ (1 byte)
: Start code in ASCII mode
1) N or n (1 byte)
:Communication error command ... This is also used for the checking of inverter trip.
“4EH(N)” for the normal communication and “6EH(n)” during the inverter trip.
Data (4 bytes)
: Error code (0000~0004)
0000 ... Impossible to execute (Although communication is established normally, the com-
mand cannot be executed because it is to write data into a parameter whose set-
ting cannot be changed during operation (e.g., maximum frequency) or the
EEPROM is faulty.)
0001 ... Data error (The data is outside the specified range or it is composed of too many
digits.)
0002 ... Communication number error (There is no communication number that matches.)
0003 ... Command error (There is no command that matches.)
0004 ... Checksum error (The checksum result differs.)
“)” (1 byte)
: Stop code ... This code is omitted if it is not found in the data received.
■ Examples:
(N0000&5C)CR... Impossible to execute (e.g., a change of maximum frequency data during opera-
tion)
(N0001&5D)CR... Data error (Data is outside the specified range.)
(N0002&5E)CR... No communication number (There is no communication number that matches.)
(N0003&5F)CR... There is no command that matches. (Commands other than the R, W and P com-
mands)
(Ex.: L, S, G, a, b, m, r, t, w ...)
(N0004&60)CR... Checksum error (The checksum result differs.)
No data returned ... Format error or invalid inverter number
(Ex.: A code other than the stop code (“)”) (Ex.: ”｝”) is entered in the stop code
position or the CR code was not found within 0.5 sec.)
10
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4.1.2. Data transmission formats used in binary mode
A communication number is used to specify a data item, data is written in hexadecimal form, and
data in transmission characters are represented by binary codes (HEX codes).
■ Computer → VF-S11 (binary mode)
Omissible in one-to-one communications
No data for the 52H (R) command
“/”
(2FH)
INV-NO
1 byte
CMD
1 byte
Communication No.
2 bytes
DATA
2 bytes
SUM
1 byte
Checksum area
Not omissible
1. 2FH (“/”) (1 byte) : Start code in binary mode
2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00H to 3FH ,FFH
In case the inverter number is other than FFH (broadcast communication), command is ex-
ecuted only when the inverter number coincides with the one designated with the panel. If
the inverter number is not matched, it will be judged invalid and the data is not returned.
3. CMD (1 byte)
: Command (For details, see the table below.)
52H (R) command: The size of the data following CMD is fixed to 3 bytes. (Communication
number: 2 bytes, checksum: 1 byte)
57H (W), 50H (P) and 47H (G) commands: The size of the data following CMD is fixed to 5
bytes.
(Communication number: 2 bytes, data: 2 byte, checksum: 1 byte)
Any command other than the above is rejected and no error code is returned.
4. Communication No.(2 bytes)
: Communication number (See 11, “Parameter data.”)
5. Data (2 bytes)
: 0000H to FFFFH
57H (W) and 50H (P) commands: Write data (An area check is performed.)
47H (G) command: Dummy data (e.g., 0000) is needed.
52H (R) command: Any data is judged invalid. (No data should be added.)
6. Sum (2 bytes)
: Checksum (not omissible) 00H to FFH
Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code
of the data returned to the data (or to the communication number for the 52H (R) command)
Ex.: 2F 52 00 ?? ... 2FH+52H+00H+00H=81H
The last two digits (??) represent the checksum. = 81
■ Details of commands and data
CMD (1 byte)
Write data (2 bytes) Hexadecimal number
No data
52H (R): RAM read command
57H (W): RAM/EEPROM write command
50H (P): RAM write command
47H (G): RAM read command (for two-wire networks)
Write data (0000H to FFFFH)
Write data (0000H to FFFFH)
Dummy data (0000H to FFFFH)
11
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■ VF-S11 → computer (binary mode)
At time of broadcast communication of the binary mode, returning of data is not executed except for
the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This
is because there will be a risk that the returned data may be deformed.
• Data returned when data is processed normally (Binary mode)
Omissible
“/”
(2FH)
INV-NO
1 byte
CMD
1 byte
Communication No.
2 bytes
DATA
2 bytes
SUM
1 byte
Checksum area
Not omissible
1. 2FH (“/“) (1 byte) : Start code in binary mode
2. INV-NO (2 bytes) : Inverter number... 00H to 3FH (The inverter number is omitted if it is not found in the data
received.)
If the inverter number matches up with that specified from the operation panel, data will be
returned from the inverter. If the inverter number does not match, the data will be invalid and
no data will be returned.
3. CMD (1 byte)
: Command...The command is also used for a check when the inverter is tripped.
Under normal conditions...52H (R), 47H (G), 57H (W) or 50H (P) is returned, depending on
the command received.
When the inverter is tripped...The lowercase letter 72H (r), 67H (g), 77H (w) or 70H (p) is
returned with 20H added to it, depending on the command received.
4. Communication No. (4 bytes)
: The communication number received is returned.
5. Data (2 bytes)
: Data ... 0000H to FFFFFH
The data read is returned for the 52H (R) and 47H (G) commands, while the data written is
returned for the 57H (W) and 50H (P) commands.
6. Sum (1 bytes)
: Checksum (not omissible) 00H to FFH
Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code
to the data.
12
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2) Error Processing (Binary mode)
In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-
ber is returned to the computer in addition to the checksum. At time of broadcast communication of
the binary mode, returning of data is not executed except for the inverter to be returned (inverter
number 00H) and when the inverter number is not matched. This is because there will be a risk that
the returned data may be deformed.
Omissible
(1 byte)
(1 byte)
“/”
(2FH)
INV-NO
1 byte
N or n
(4EH)(6EH)
DATA
SUM
2 bytes
1 byte
Checksum area
Not omissible
N or n (1 byte)
Data (2 bytes)
: Communication error command ... This command is also used for a check when the inverter
is tripped.
“4EH (N)” is returned under normal conditions, while “6EH (n)” is returned when the in-
verter is tripped.
: Error code (0000~0004)
0000 ... Impossible to execute (Although communication is established normally, the com-
mand cannot be executed because it is to write data into a parameter whose setting
cannot be changed during operation (e.g., maximum frequency) or the EEPROM is
faulty.)
0001 ... Data error (The data is outside the specified range or it is composed of too many
digits.)
0002 ... Communication number error (There is no communication number that matches.)
0004 ... Checksum error (The checksum result differs.)
No code returned ...Command error, format error (failure to receive the specified number of
bytes within 0.5 seconds, or an parity, overrun or framing error) or the
inverter number does not match or an inverter in broadcast communica-
tion in the binary mode except for the inverter for data returning (the in-
verter numbered 00H).
■ Examples:
2FH, 4EH, 00H, 00H, 7DH ... Impossible to execute (e.g., a change of maximum frequency data
during operation)
2FH, 4EH, 00H, 01H, 7EH ... Data setting error (The data specified falls outside the specified
range.)
2FH, 4EH, 00H, 02H, 7FH ... No communication number (There is no communication number that
matches.)
2FH, 4EH, 00H, 04H, 81H ... Checksum error (The checksum result differs.)
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4.1.3. Transmission Format of Block Communication
What is block communication?
Data can be written in and read from several data groups set in one communication by setting the ty-
pe of data desired for communication in the block communication parameters (, ,
to ) in advance. Block communications can save the communication time.
Data is transmitted hexadecimal using the binary (HEX) code transmission characters. “Computer
→ inverter” is for writing only, while “Inverter → computer” for reply is for reading only.
■ Computer → VF-S11 (Block Communications)
Number of writing data groups x 2 bytes
Omissible
INV-NO
Num-
ber of
write
Num-
ber of
read
Start
Code
“／”
CMD
“X”
Write
data1
High
Write
data1
Low
Write
data2
High
Write
data2
Low
SUM
data
data
groups
groups
Checksum Area
1. 2FH(“/”) (1 byte) : Start code of binary mode
2. INV-NO (1 byte) : Inverter number. (Can be omitted in 1:1 communications): 00H to 3FH, FFH
Executed only when the inverter number matches the inverter number. Set on the panel, ex-
cept in FFH (broadcast communication).
Communication data will be invalidated and data will not be returned either if the inverter
number. Does not match.
3. CMD (1 byte)
: ‘X’ (Block communication command)
4. Number of write data groups (1 byte)
: Specify the number of data groups to be written (00H to 02H).
If specified outside of the range, data will be treated as a format error and data will not be re-
turned.
5. Number of read data groups (1 byte)
: Specify the number of data groups to be read (00H to 05H).
If specified outside of the range, data will be returned as “Number of read data groups = 0”
when returned by the inverter.
6. Write data1 (2 bytes)
: Needed when the number of write data groups is larger than 1.
Data to be written to the specified parameter selected by
Dummy data is needed if the number of write data groups is larger than 1 even though(none)
is selected for
7. Write data2 (2 bytes)
: Needed when the number of write data groups is 2.
Data to be written to the specified parameter selected by
Dummy data is needed if the number of write data groups is 2 even though(none) is selected
for
8. SUM (1 byte)
: Checksum (Cannot be omitted) 00H to FFH
Lower two digits (1 byte) of total sum from start code (SUM value not included)
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■ Block Write 1, 2
Select data, which is desired to be written in block communications, in Block Communication Write
Data 1 and 2 Parameters (, ). This parameter becomes effective when the system
is reset, such as when power is turned off. When the setting is completed, turn off and then on the
power.
No. Block Write Data
For data details, see:
0
1
2
3
No selection
－
Command 1 (FA00)
“8.1 Command by communication”
“8.1 Command by communication”
“8.1 Command by communication”
“8.3 Control of input/put signals from com-
munication”
Command 2 (FA20)
Frequency Command Value (FA01)
4
5
Terminal Board Output Data (FA50)
Communication Analog Output (FA51)
“8.3 Control of input/put signals from com-
munication”
* When “No selection” is specified in the parameters, no data will be written even though write data is
specified.
■ Block Read 1 to 5
Select read data, which is desired to be read in block communications, in Block Communication
Read Data 1 and 5 Parameters (to). This parameter becomes effective when
the system is reset, such as when power is turned off. When the setting is completed, turn off and
then on the power.
No. Block Read Data
For data details, see:
0
1
2
3
4
5
6
No selection
－
Status 1 (FD01)
“8.2 Monitoring from communication”
“8.2 Monitoring from communication”
“9. Parameter data”
Output Frequency (FD00)
Output Current (FE03)
Output Voltage (FE05)
Alarm Information (FC91)
PID Feedback Value (FE22)
“9. Parameter data”
“8.2 Monitoring from communication”
“9. Parameter data”
“8.3 Control of input/put signals from
communication”
7
8
Input Terminal Board Monitoring (FD06)
Output Terminal Board Monitoring (FD07)
Analog Monitoring VIA (FE35)
“8.3 Control of input/put signals from
communication”
“8.3 Control of input/put signals from
communication”
9
“8.3 Control of input/put signals from
communication”
10
Analog Monitoring VIB (FE36)
* Output current (FE03), output voltage (FE05) and PID feedback value (FE22) will become hold data
during a trip. Otherwise, real-time data appears.
* “0000” will be returned as dummy data, if “0 (No selection)” is selected for the parameter and “read”
is specified.
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■ VF-S11 → Computer
At time of broadcast communication of the binary mode, returning of data is not executed except for
the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This
is because there will be a risk that the returned data may be deformed.
1) Normal processing
Omissible
Number of read data groups x 2 bytes
Start
Code
INV CMD
Write Read
Read
Status data1 data1 data2 data2 data3 data3 data4 data4 data5 data5
high low high low high low high low high low
Read
Read
Read
Read
Read
Read
Read
Read SUM
Number
of Read
Data
No.
“Y”
“／”
Groups
Checksum area
1. 2FH “/” (1 byte)
2. INV-NO (1Byte)
：Start code in binary mode
：Inverter number･･･00H to 3FH
If the inverter number matches up with that specified from the operation panel, data will
be returned from the inverter. If the inverter number does not match, the data will be
judged invalid and no data will be returned.
Communication data will be invalidated and data will not be returned either if the in-
verter number does not match. (Inverter number is considered matched if it is omitted
during reception)
3. CMD(1Byte)
:‘Y’ (Block communication command [monitoring])
Lowercase letter ‘y’ during an inverter trip, including standing by for retrying and during
a trip.
4. Number of read data groups (1 byte)
: Return the number of data groups to be read (00H to 05H).
5. Write status (1 byte) : Return 00H to 03H.
* Failing to write in the specified parameter in the number of write data groups, set “1” in
the corresponding bit for the parameter failed to write. (See below.)
Bit Position
Data Type
7
6
5
4
3
2
1
0
－
6. Read data1 - 5 (2 bytes)
: Return according to the number of read data groups. “0000H” is returned as dummy
data if “0” is selected as a parameter.
Read data1: Data selected by . Read data2: Data selected by .
Read data3: Data selected by . Read data4: Data selected by .
Read data5: Data selected by .
7.SUM(1Byte)
: Checksum (Cannot be omitted) 00H to FFH
Lower two digits (1 byte) of total sum from start code of return data to read data.
■ Example
(When set as follows: = (Command 1), = (frequency command value),
= (status), = (output frequency), = (output current), = (output voltage) and
= (alarm)
Computer → Inverter：2F 58 02 05 C4 00 17 70 D9
Inverter → Computer：2F 59 05 03 00 00 00 00 00 00 00 00 00 00 90 (When parameter is not set)
Inverter → Computer：2F 59 05 00 40 00 00 00 00 00 00 00 00 00 CD CD (When parameter is set)
Inverter → Computer：2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D (During operation at 60Hz)
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2) Error Processing (Binary mode)
In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-
ber is returned to the computer in addition to the checksum. At time of broadcast communication of
the binary mode, returning of data is not executed except for the inverter to be returned (inverter
number 00H) and when the inverter number is not matched. This is because there will be a risk that
the returned data may be deformed.
Omissible
(1 Byte)
(1 Byte)
“／”
INV-NO
1 Byte
“N” or “n”
DATA
SUM
(2FH)
(4EH)(6EH)
2 Bytes
1 Byte
Checksum Area
Not omissible
“N” or “n” (1 byte) : Communication error command. Also for check during an inverter trip (includes standing by
for retrying and trip holding). “4EH (N)” when normal, “6EH (n)” during an inverter trip.
DATA (2 bytes)
: Error code (0004)
0004
: Checksum error (The checksum does not match)
No return : Command error, format error (specified number of bytes is not received in 1sec,
or parity error, overrun error or framing error), inverter number mismatch, and
inverter number other than 00H in broadcast communication.
■ Examples
Computer → Inverter : 2F 58 02 05 C4 00 17 70 D8
Inverter → Computer : 2F 4E 00 04 81 ... Checksum error
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4.2. Commands
Here are the communication commands available.
Command
R command Reads the data with the specified communication number.
Function
W command Writes the data with the specified communication number. (RAM and EEPROM).
P command Writes the data with the specified communication number. (RAM).
Reads the data with the specified communication number. (For binary mode only.
Dummy data is required for this command.)
G command
X command Block communication (Computer -> Inverter)
Y command Block communication (Inverter -> Computer)
„ W (57H) (RAM*1 /EEPROM*2 write)
This command is used to write new data into the parameter specified using it communication number.
It writes data into the RAM and EEPROM. For parameters whose settings cannot be stored in the
EEPROM (e.g., parameter with the communication number FA00), the W (57H) command writes
data into the RAM only. It cannot be used to write data into read-only parameters (e.g., parameter
with the communication number FD?? or FE??).
Each time an attempt to write data is made, the inverter checks if the data falls within the specified
range. If this check reveals that the data falls outside the specified range, the inverter will reject it and
return an error code.
- Ex.: Setting the deceleration time (communication number: 0010) to 10 sec.
CR: Carriage return
<ASCII mode>
Computer → Inverter
(W00100064)CR
Inverter → Computer
(W00100064)CR
…(10÷0.1=100=0064H)
<Binary mode>
Computer → Inverter
2F 57 00 10 00 64 FA
Inverter → Computer
2F 57 00 10 00 64 FA
…(10÷0.1=100=0064H)
Notice
♦ Do not write the same parameter to the EEPROM more than 10,000 times. The life time of EEPROM is
approximately 10,000 times.(Some parameters are not limited, please refer to the “9.Parameter data “)
The lifetime of EEPROM is approximately 10,000 times. When using the TOSHIBA inverter protocol and
the data does not need to be records, use P command (the data is written only to RAM).
■ Explanation of terms
*1: The RAM is used to temporarily store inverter operation data. Data stored in the RAM is cleared
when the inverter is turned off, and data stored in the EEPROM is copied to the RAM when the
inverter is turned back on.
*2: The EEPROM is used to store inverter operation parameter settings, and so on. Data stored in
the EEPROM is retained even after the power is turned off, and it is copied to the RAM when the
inverter is turned on or reset.
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„ P (50H) (RAM*1 write)
This command is used to rewrite data into the parameter specified using a communication number. It
writes data into the RAM only. It cannot be used to write data into any read-only parameters. Each
time an attempt to write data is made the inverter checks whether the data falls within the specified
range. If this check reveals that the data falls outside the range, the inverter will reject it and return an
error code.
- Ex.: Entering the emergency stop command (communication number: FA00) from the computer
<ASCII mode>
Computer → Inverter
Inverter → Computer
(PFA009000)CR
(PFA009000)CR
…Command priority, emergency stop
command
<Binary mode>
Computer → Inverter
2F 50 FA 00 90 00 09
Inverter → Computer
2F 50 FA 00 90 00 09
„ R (52H) (Data read)
This command is used to read the setting of the parameter specified using a communication number.
(When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire
line, the execution of the R command could result in a communication error. To avoid this, use the G
command in binary mode when inverters are connected to a two-wire line.)
- Ex.: Monitoring the electric current (communication number: FE03)
<ASCII mode>
Computer → Inverter
(RFE03)CR
Inverter → Computer
(RFE03077B)CR
…Current: 1915 / 100 = 19.15%
<Binary mode>
Computer → Inverter
2F 52 FE 03 82
Inverter → Computer
2F 52 FE 03 07 7B 04
Notice
When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire line, use
the G command to read data.
„ G (47H) (Data read)
This command is used to read the parameter data specified using a communication number.
To send this command to an inverter with two-wire type RS485 network, 2bytes of dummy data are
needed. This command is available only in binary mode.
- Ex.: Monitoring the electric current (communication number: FE03)
Computer → Inverter
Inverter → Computer
2F 47 FE 03 00 00 77
2F 47 FE 03 07 7B F9
* In this example, the data 00H sent from the computer to the inverter is dummy data.
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„ S (53 H)/ s (73 H) Inter-drive communication command(RAM*1 Write)
This command is for using frequency command values in % (1 = 0.01%), instead of in Hz, and is for
synchronous-proportional operation in inter-drive communication. This command can also be used
in ordinary computer link communications.
When writing in the frequency command (FA01) is enabled and a parameter other than it is specified,
a communication number error will result. Data is written in the RAMs only and at this time the data
check such as an upper limit and lower limit checking is not carried out.
Data is not returned from the inverters while this command is used. This command can be used
only in the binary mode.
For the details of the format, see “6.2 Transmission format for inter-drive communication.”
Use (%) as the unit for frequency command values specified by the command S, instead of (Hz), and
the receiving side converts units for frequency values to “Hz” in accordance with the point conversion
parameter. The conversion formula is shown below.
Frequency command value (Hz) =
Point 2 frequency (F813) − Point 1 frequency (F812)
x (Frequency command value (%)
Point 2 (F814) − Point 1 (F811)
− Point 1 (F811)) + Point 1 frequency (F812)
When Command “s” (lowercase letter) is received, the slave side judges that the master side is
tripped and operates in accordance with the inter-drive communication parameter ().
For detail, see "7. Communication parameters ".
- Examples: 50% frequency command
(If maximum frequency = Frequency for operation at 80Hz = 40Hz: 50% = 5000d = 1388H)
<Binary mode>
Master inverter → Slave inverter
Slave inverter → Master inverter
2F 53 FA 01 13 88 18
No return
„ X(58H)/Y (59H) (Block Communication Command)
Data selected in the block communication write parameters (,) is written in the
RAMs. When returning data, data selected in block communication read parameters ( to
) is read and is returned.
- Examples: 60Hz operation command from communication and monitoring (Monitoring when al-
ready operating at 60Hz)
(Parameter Setting: = , = , = , = , = , =
, = )
<Binary mode>
Computer → Inverter
Inverter → Computer
2F 58 02 05 C4 00 17 70 D9
2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D
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4.3. Transmission errors
■ Table of error codes
Error name
Description
Error code
Impossible to exe- The command is impossible to execute, though communication was
0000
cute
established normally.
1 Writing data into a parameter whose setting cannot be changed
during operation (e.g., maximum frequency) *1
2 Writing data into a parameter while “” is in progress
3 The maintenance command is issued. *2
Invalid data is specified.
Data error
0001
0002
Communication
number error
There is no communication number that matches.
Ex.: In the case of (R0)))) CR, 0))) is recognized as a communication
number.
Command error
The command specified does not exist.
0003 (ASCII mode)
No code returned (Binary
mode)
Checksum error
Format error
The Checksum does not match.
0004
The data transmission format does not match.
1 One-digit inverter number (ASCII mode)
2 The CR code is found in the designated position. (ASCII mode)
Ex.:Communication number of 4 digit or less. In the case of (R11)
CR, 11) CR is recognized as a communication number and
the CR code is not recognized, with the result that a format er-
ror occurs.
No code returned
3 A code other then the stop code (“)”) is entered in the stop code
position.
4 The specified number of bytes of data are not received within 0.5
sec.
Receiving error
A parity, overrun or framing error has occurred. *3
No code returned
*1: For parameters whose settings cannot changed during operation, see 11.1, Table of parame-
ters.”
*2: In binary mode, no data will be returned if a command error occurs. When the maintenance
command (M) is issued, an impossible-to-execute error occurs and an error code is returned.
*3: Parity error
: The parity does not match.
Overrun error : A new data item is entered while the data is being read.
Framing error : The stop bit is placed in the wrong position.
* For the errors with “no code returned” in the above table, no error code is returned to avoid a data
crash.
If no response is received, the computer side recognizes that a communication error has occurred.
Retry after a lapse of some time.
* If the inverter number does not match, no processing will be carried out and no data will be re-
turned, tough it is not regarded as an error.
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4.4. Broadcast communications function
Broadcast communication function can transmit the command (write the data) to multiple inverters by
one communication. Only the write (W, P) command is valid and the read (R, G) command is invalid.
The inverters subject to the broadcast communication are the same to the independent communica-
tion; 0 to 99 (00H - 63H) in the ASCII mode, and 0 to 63 (00H - 3FH) in the binary mode.
To avoid data deforming, the inverters to return data will be limited. A RS485 communication con-
verter unit (RS4001Z, RS4002Z or RS4003Z) will be needed to control multiple inverters on the net-
work.
■ “Overall” broadcast communications (ASCII mode / Binary mode)
- ASCII Mode
If you enter two asterisks (**) in the inverter number position of the data transmission format, the
computer will send the data simultaneously to all inverters (with an inverter number between 0 and
99 (00 to 63H)) on the network.
- Binary Mode
To put "FF" to the specified place of the inverter number in the communication format validates the
broadcast communication and the command is transmitted to all the applicable inverters in the net-
work (inverter numbers from 0 to 63 (00 to 3FH)).
<Inverter that returns data to the computer>
Data is returned from the inverter bearing the inverter number 00 only.
If you do not want inverters to return data, do not assign the number 00 to any inverter on the net-
work.
■ “Group” broadcast communications (ASCII mode only)
If you put “*?” In the inverter number position of the data transmission format, data will be sent
simultaneously to all inverters bearing a number whose digit in the one’s place in decimal notation
is”?”
If you put ”?*” In the inverter number position of the data transmission format, the data will be sent
simultaneously to all inverters bearing a number whose digit in the ten’s place in decimal notation
is”?”.
(“?”: Any number between 0 and 9.)
<Inverter that returns data to the computer>
Data is returned only from the inverter bearing the smallest number in the same group of inverters
(i.e., inverter whose number in the position of ”*” is 0).
If you do not want inverters to return data to the computer, do not assign a number having a 0 in the
position of “*” to any inverter on the network.)
■ Examples of broadcast communications
Ex: Set the frequency setting for communication to 60Hz.
1 Host computer → Multiple inverters: broadcast communications (ASCII Mode)
Example of transmission of data from host computer to inverter: (**PFA011770)CR
Example of data returned from inverter to host computer: (00PFA011770)CR
Data is returned from the inverter numbered 00 only, while commands are issued to all inverters
connected to the network.
2 Host computer → A specific group of inverters: group communications (ASCII Mode)
Example of transmission of data from host computer to inverters: (*9PFA011770)CR
Example of data returned from inverter to host computer: (09PFA011770)CR
Data is returned only the inverter numbered 09 only, while commands are issued to a maximum of
10 inverters bearing the number 09, 19, 29, 39, ... or 99.
3 Host computer → Multiple inverters: broadcast communications (Binary Mode)
Example of transmission of data from host computer to inverters: 2F FF 50 FA 01 17 70 00
Example of data returned from inverter to host computer: 2F 00 50 FA 01 17 70 01
Returning is possible only for the inverter that has the number 00, and the command is transmitted
to all the applicable inverter connected in the network.
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•
An example of system configuration (schematic diagram)
A
RS485 communication converter unit (RS4001Z,
Host
computer
RS4002Z or RS4003Z) will be needed to control multiple
inverters on the network.
Block 2
Block 1
Inverter No.20 Inverter No.21
Inverter No.29
Inverter No. 10 Inverter No.11
Inverter No.19
VF-S11
VF-S11
VF-S11
VF-S11
VF-S11
VF-S11
*1
*1: Error signal I/F
In broadcast communications, only the representative inverter in each block returns data to the host
computer. However, you can make the representative inverter in each block report the occurrence of
a problem in the block. To do so, follow these steps.
Set the timer function so that, if a time-out occurs, the inverter will trip (Ex.: = (sec)), set the
output terminal selection parameter (FL) so that trip information will be output through the output
terminal (=), and set the input terminal selection parameter (F) of the representative in-
verter in each block to “external input trip (emergency stop)” (=). Then, connect the input
terminal (F) of the representative inverter to the FL terminal of each of the other inverters in the same
block. In this setting, if an inverter trips, the representative inverter will come to an emergency stop,
and as a result it will report the occurrence of a problem in its block to the computer. (If the repre-
sentative inverter returns a lowercase letter in response to a command from the computer, the com-
puter will judge that a problem has arisen in an inverter.) To examine details on the problem that has
arisen, the host computer accesses each individual inverter, specifying its communication number.
To make the computer issue a command to all inverters in block 1 or block 2 shown in the figure
above, specify “1*” or “2*”, respectively. In this system, inverter No. 10 will return data to the comput-
er if a problem arises in block 1, or inverter No. 20 if a problem arises in block 2. For overall broad-
cast communications, specify “**”, in which case the inverter with the communication number “00” will
return data to the computer.
In this example, if you want the computer to maintain communications without bringing an represen-
tative inverter to an emergency stop, set its input terminal selection parameter to “disabled
(=) but not to “external input trip (emergency stop).” This setting causes the host computer
to check the setting of the input terminal information parameter (communication number: FE06) of
the representative inverter, and as a result enables the computer to detect the occurrence of a prob-
lem.
CAUTION:
Data from inverters will be deformed if inverters of the same number are connected on the network.
Never assign same single numbers to inverters on the network.
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4.5. Examples of the use of communication commands
Here are some examples of the use of communications commands provided for the VF-S11 series of
inverters.
Inverter numbers and checksum used in ASCII mode are omitted from these examples.
■ Examples of communications
- To run the motor in forward direction with the frequency set to 60 Hz from the computer
<ASCII mode>
Computer → Inverter
Inverter → Computer
(PFA011770)CR
(PFA011770)CR
…Set the operation frequency to 60 Hz.
(60 / 0.01 Hz = 6000 = 1770H)
(PFA00C400)CR
(PFA00C400)CR
…Set to “forward run” with commands and frequency
instruction from the computer enabled.
<Binary mode>
Computer → Inverter
2F 50 FA 01 17 70 01
2F 50 FA 00 C4 00 3D
Inverter → Computer
2F 50 FA 01 17 70 01
2F 50 FA 00 C4 00 3D
- To monitor the operation frequency (during 60 Hz operation)
<ASCII mode>
Computer → Inverter
Inverter → Computer
(RFD00)CR
(RFD001770)CR
…Set the operation frequency to 60 Hz.
(60÷0.01Hz=6000=1770H)
<Binary mode>
Computer → Inverter
2F 52 FD 00 7E
Inverter → Computer
2F 52 FD 00 17 70 05
- To monitor the status of the inverter
<ASCII mode>
Computer → Inverter
Inverter → Computer
(RFD01)CR
(rFD010003)CR
…For details on statuses, see 8.2 “Monitoring from
the computer.” (Stop status, FL output status, trip
status (r command))
<Binary mode>
Computer → Inverter
2F 52 FD 01 7F
Inverter → Computer
2F 72 FD 01 00 03 A2
- To check the trip code (when the inverter is tripped because of )
…For details on trip codes, see “Trip code monitor” in 8.2, “Monitoring
from the computer.” (18H = 24d “” trip status)
<ASCII mode>
Computer → Inverter
(RFC90)CR
Inverter → Computer
(rFC900018)CR
<Binary mode>
Computer → Inverter
2F 52 FC 90 0D
Inverter → Computer
2F 72 FC 90 00 18 45
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4.6. Examples of RS232C communication programs
Ex. 1: BASIC program for monitoring the operation frequency continuously (RS232C, ASCII mode)
(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)
◊ Monitoring the operation frequency continuously
1) Examples of programs
10 OPEN "COM1:9600,E,8,1" AS #1
20 A$=”FE00”
--- 9600 baud, even parity, 8-bit length, 1 stop bit
--- Specifies the communication number for
monitoring the operation frequency.
--- Transmits data to the inverter.
Note: The carriage return code is added
automatically.
30 PRINT #1,"("+”R”+A$+")"
40 INPUT#1,B$
50 AAA$=“&H”+MID$(B$,7,4)
--- Receives data returned from the inverter.
--- Extracts only data items from the data re-
turned.
60 F$=LEFT$(STR$(VAL(AAA$)/100),6)
--- Converts data into decimal form.
70 PRINT " Operation frequency =";F$+“Hz” --- Displays the operation frequency.
80 GOTO 20 --- Repeats.
2) Examples of program execution results (stop command issued during 80 Hz operation)
Operation frequency = 80 Hz ...
Operation frequency = 79.95Hz
:
:
Operation frequency = 0Hz
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Ex. 2: BASIC program for executing an input command with checksum (RS232C, ASCII mode)
(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)
◊ Checking if the maximum frequency setting has been changed correctly
1) Examples of programs
10 OPEN "COM1:9600,E,8,1" AS #1
--- 9600 baud, even parity, 8-bit length, 1 stop bit
--- Reads in data to be sent to the inverter.
--- Adds “(“ and “&” to the read data in.
20 INPUT"Send Data=";A$
30 S$="("+A$+"&"
40 S=0
50 L=LEN(S$)
60 FOR I=1 TO L
Calculates the number of bits (checksum).
70 S=S+ASC(MID$(S$,I,1))
80 NEXT I
90 CHS$=RIGHT$(HEX$(S),2)
100 PRINT #1,"("+A$+"&"+CHS$+")"
--- Sends the data including the checksum result
to the inverter.
110 INPUT #1,B$
120 PRINT "Receive data= ";B$
130 GOTO 20
--- Receives data returned from the inverter.
--- Displays the data received.
--- Repeats.
2) Examples of program execution results
Send Data=? R0011
--- Reads the maximum frequency (0011).
--- 1F40 (Maximum frequency: 80 Hz)
--- Changes the maximum frequency to 60 Hz
(1770).
Receive Data= (R00111F40&3D)
Send Data=? W00111770
Receive Data= (W00111770&36)
Send Data=? R0011
Receive Data= (R00111770&31)
--- Reads the maximum frequency (0011).
--- 1770 (Maximum frequency: 60 Hz)
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E6581222
Ex. 3 BASIC program for communication tests (RS232C, ASCII mode)
(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)
◊ Accessing a parameter (with error code.)
1) Examples of programs
100 INPUT "Baud rate=9600/4800/2400/1200";SPEED$
---- Selects a baud rate.
110 INPUT "Parity=even(E)/odd(O)";PARITY$
---- Selects parity.
120 OPEN "COM1:"+SPEED$+","+PARITY$+",8,1"AS #1
130 INPUT "Send data";B$
140 PRINT #1,B$
---- Enters a command.
150 C$=""
160 T=TIMER
170 COUNT=(TIMER-T)
180 IF COUNT >3 THEN 270
190 IF COUNT <0 THEN T=TIMER
200 IF LOC(1)= 0 THEN A$="":GOTO 220
210 A$=INPUT$(1,#1)
220 IF A$ <>CHR$(13) THEN 240
230 GOTO 290
---- Prevents an increase in the number of digits.
---- Carriage return
(CR) to finish reading in.
240 IF A$="" THEN 160
250 C$=C$+A$
260 GOTO 160
270 COLOR @0,7:PRINT "!!! There is no data to return. !!! ";:COLOR @7,0:PRINT
280 GOTO 130
---- Repeats.
290 PRINT A$;
300 C$=C$+A$
310 PRINT "Return data=";c$;
320 GOTO 130
---- Repeats.
2) Examples of program execution results (In this example, the inverter number is 00.)
Baud rate=9600/4800/2400? 9600
Parity=even(E)/odd(O)? E
Send data? (00R0011)
Return data= (00R00111770)
Send data? ()
---- Selects 9600 baud.
---- Select E (even parity).
---- Carries out test communications.
---- Error
!!! There is no data to return. !!!
Send data? (R0011)
Return data= (R00111770)
Send data?
---- No data is returned.
:
:
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Ex. 4 A VisualBaisc program for the ASCII mode communication
(VisualBaisc is the registered trademark of the U.S. microsoft company.)
◊ Accessing a parameter
1) Sample program executive example (Monitor of the output frequency (FD00))
Transmission and reception of the optional data like in the following example can be done by doing
"the arrangement of the form control" of the explanation and "the description of the code" with
mentioning later.
Reply data from the inverter
are 1770H (6000d) with this
example.
As for the unit of the output
frequency (FD00),1= 0.01Hz,
the Inverter is being operated
in 60.00Hz.
2)Arrangement of the control on the form
Two TextBox, two Labels , three CommandButton and one MsComm are arranged on the form as
follows.
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3)The description of the code
Private Sub Form_Load()
Form1.Show
'**********************************************************************
' Setting the labels (Initialization)
'**********************************************************************
Label1.Caption = "Data for transmission"
Label2.Caption = "Received data"
Command1.Caption = "Transmit"
Command2.Caption = "Clear"
Command3.Caption = "Exit"
'**********************************************************************
' Setup of communication (Initialization)
'**********************************************************************
MSComm1.RThreshold = 0
MSComm1.InputLen = 1
MSComm1.CommPort = 1
MSComm1.InBufferCount = 0
MSComm1.OutBufferCount = 0
Form1.MSComm1.Settings = "9600,E,8,1"
Form1.MSComm1.InputMode = comInputModeText
'**********************************************************************
' A serial port is opened. (Initialization)
'**********************************************************************
If False = MSComm1.PortOpen Then
MSComm1.PortOpen = True
End If
'**********************************************************************
' Data are received.
'**********************************************************************
Do
dummy = DoEvents()
If MSComm1.InBufferCount Then
Text1.Text = Text1.Text & MSComm1.Input
End If
Loop
End Sub
'**********************************************************************
' The contents of the text box are transmitted.
'**********************************************************************
Private Sub Command1_Click()
MSComm1.Output = Text2.Text & Chr(13)
End Sub
'**********************************************************************
'The contents of the text box are removed.
'**********************************************************************
Private Sub Command2_Click()
Text2.Text = ""
Text1.Text = ""
End Sub
'**********************************************************************
'A serial port is closed, end
'**********************************************************************
Private Sub Command3_Click()
If True = MSComm1.PortOpen Then
MSComm1.PortOpen = False
End If
End
End Sub
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5. MODBUS-RTU protocol
The MODBUS-RTU protocol of VF-S11 supports only part of the MODBUS-RTU protocol. Only two
commands are supported, “03: Multiple data read (limited only to two bytes)” and “06: Word writes.”
All data will be binary codes.
■ Parameter Setting
• Protocol Selection ()
Select “MODBUS－RTU protocol ( = ) in the communication selection parameters. “TO-
SHIBA Inverter Protocol” (=) is set for communication protocol selection in initial shipment
setting. (See “3. Communication protocol.”)
* Caution when selecting MODBUS-RTU protocol
The extension panel (RKP001Z) and parameter writer (PWU001Z) , these options cannot be used.
Note that Parameter Numbers. , , , and to do not
function.
• Inverter Number ()
Inverter numbers. 0 to 247 can be specified in MODBUS-RTU. “0” is allocated to broadcast com-
munication (no return). Set between 1 and 247.
<Related Parameter: Change and set as necessary>
: Communication baud rate
: Parity
: Communication error trip time
■ Timing of Message from Host
MODBUS-RTU sends and receives binary data without a frame synchronization header character
and defines the frame synchronizing system to recognize the start of a frame by no-data time.
MODBUS-RTU initializes frame information and decides the data that is first received subsequently
as the first byte of a frame if data is not communicated within a time for 3.5 bytes, including the start
and stop bits, at the transmission speed of the on-going communication while standing by for data
reception. If a frame is being received before no-data time for 3.5 bytes, this frame will be aborted.
Be sure to provide more than 3.5 bytes for data send interval.
Send data so that the time between characters will not be spaced for more than 1.5 bytes. Other-
wise, MODBUS-RTU will sometimes recognize it as a start of data.
In the case of data to other stations, messages from the host and responses from other stations are
also received. A wait time for 3.5 bytes is needed before starting transmission after own station
completes reception when sending a response to recognize a frame start at this time.
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■ Data Exchange with Inverters
The inverters are always ready to receive messages and perform slave operation in response to
computer requests.
A transmission error will result if the transmission format does not match. The inverters will not re-
spond if a framing error, parity error, CRC error or an inverter number mismatch occurs.
If no response is received, the computer side recognizes that a communication error has occurred.
Transmit data again.
(1) In case spacing for more than 3.5 bytes are provided before characters, all data immediately
preceding it will be aborted. Data will sometimes be aborted if spacing for 1.5 bytes or more is
provided between characters.
(2) Communications will be effective only when inverter numbers match or the communication mode
is broadcast communications. No response will be made if inverter numbers do not match.
(3) Message reception will end if spacing for more than 3.5 bytes are provided at the end of charac-
ters.
(4) If no communications take place within the time specified using the timer function, the computer
will assume that a communication error has occurred and trip the inverter. The timer function is
disabled when the inverter is turned on or initialized. For details, see Section 7.3, “Timer func-
tion.”
(5) On executing the command received, the inverter returns data to the computer. For the response
time, see Appendix 2, “Response time.”
■ Caution:
Communication is not possible for about one second after the power is supplied to the inverter until
the initial setting is completed. If the control power is shut down due to an instantaneous voltage drop,
communication is temporarily interrupted.
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5.1. MODBUS-RTU transmission format
MODBUS-RTU sends and receives binary data without a frame-synchronizing start code and defines
the blank time to recognize the start of a frame. MODBUS-RTU decides the data that is first re-
ceived subsequently as the first byte of a frame after a blank time for 3.5 bytes at the on-going com-
munication speed.
5.1.1. Read command (03)
■ Computer → VF-S11 *The text size is 8 bytes fixed.
Commu- Commu- Number Number
(3.5bytes Inverter
Blank) No.
nication
No.
(high)
nication
No.
(low)
of Data
Groups
(high)
of Data
Groups
(low)
CRC
(low)
CRC
(high)
(3.5bytes
Blank)
Command
03
00
01
1) Inverter No.. (1 byte)
: Specify an inverter number between 0 and 247 (00H to F7H).
Command processing will be executed only broadcast communication “0” and with
those inverters that match set inverter numbers. Data will not be returned if “0”
(broadcast communication) and inverter numbers do not match.
2) Command (1 byte)
: Set the read command (03H fixed).
3) Communication No.. (2 bytes)
: Set in the order of high to low numbers.
4) Number of data groups (2 bytes) : Set the number of data words 0001 (fixed) in the order of high to low numbers.
5) CRC (2 bytes)
: Set generation results of CRC in the order of low to high numbers.. For the
method to generate CRC, see “5.2 CRC Generation.” Note that the setting se-
quence is reversal to that of others.
■ VF-S11 → Computer (Normal return) *The text size is 7 bytes fixed.
(3.5bytes Inverter
Number of Read data Read data
CRC
(low)
CRC
(high)
Command
03
Blank)
No.
Data
02
(high)
(low)
1) Command (1 byte)
2) Number of data
: Read command (03H fixed) will be returned.
: A number of data bytes (02H fixed) will be returned. The number of data groups for
transmission to the inverters is 2 bytes and 01H fixed. Note that the number of data re-
turned by the inverters is 1 byte and 02H fixed.
3) Read data (2 bytes)
: Returned in the order of read data (high) and (low).
■ VF-S11 → Computer (Abnormal return) *The text size is 5 bytes fixed.
(3.5bytes
Blank)
CRC
(low)
CRC
(high)
Inverter No. Command Error Code
83
1) Command (1 byte)
2) Error code (1 byte)
: 83H fixed (Read command error) (Command + 80H)
: See “4.3 Transmission errors.”
■ Example: Reading output frequency (During 60Hz operation)
(Computer → inverter)
(Inverter → computer)
01 03 FD 00 00 01 B5 A6
01 03 02 17 70 B6 50
■ Example: Data specification error
(Computer → inverter)
(Inverter → computer)
01 03 FD 00 00 02 F5 A7
01 83 03 01 31
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5.1.2. Write command (06)
■ Computer → VF-S11 *The text size is 8 bytes fixed.
Communi- Communi-
Command cation No. cation No.
(high) (low)
(3.5bytes Inverter
Blank) No.
Write Data Write Data
CRC
(low)
CRC
(high)
(3.5bytes
Blank)
(high)
(low)
06
1) Inverter No. (1 byte)
: Specify an inverter number between 0 and 247 (00H to F7H).
Command processing will be executed only broadcast communication “0” and with
those inverters that match set inverter numbers. Data will not be returned if “0”
(broadcast communication) and inverter numbers do not match.
: Set the write command (06H fixed).
2) Command (1 byte)
3) Communication No. (2 bytes) : Set in the order of high to low numbers.
4) Write data (2 bytes)
5) CRC (2 bytes)
: Set in the order of high to low write data.
: Set generation results of CRC in the order of low to high numbers. For the method to
generate CRC, see “5.2 CRC Generation.” Note that the setting sequence is reversal
to that of others.
■ VF-S11 → Computer (Normal return) *The text size is 8 bytes fixed.
Communi- Communi-
Command cation No. cation No.
(high) (low)
(3.5bytes Inverter
Blank) No.
Write Data Write Data
CRC
(low)
CRC
(high)
(3.5bytes
Blank)
(high)
(low)
06
: Write command (06H fixed) will be returned.
: Returned in the order of write data (high) and (low).
1) Command (1 byte)
2) Write data (2 bytes)
■ VF-S11 → Computer (Abnormal return) *The text size is 5 bytes fixed.
(3.5bytes
Blank)
CRC
(low)
CRC
(high)
Inverter No. Command Error Code
86
1) Command (1 byte)
2) Error code (1 byte)
: 86H fixed (Read command error) (Command + 80H)
: See “4.3 Transmission errors.”
■ Example: Writing in frequency command value (FA01) (60Hz)
(Computer → inverter)
01 06 FA 01 17 70 E6 C6
(Inverter → computer)
01 06 FA 01 17 70 E6 C6
■ Example: Communication number error
(Computer → inverter)
01 06 FF FF 00 00 89 EE
01 86 02 C3 A1
(Inverter → computer)
Note
▼ The EEPROM life is 10,000 operations.
Do not write in the same parameter that has an EEPROM more than 10,000 times.
The communication commands (FA00, FA20, FA26), communication frequency command (FA01),
terminal output data (FA50) and analog output data (FA50) are stored in the RAMs only and no re-
strictions are placed on them.
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5.2. CRC Generation
“CRC” is a system to check errors in communication frames during data transmission. CRC is
composed of two bytes and has hexadecimal-bit binary values. CRC values are generated by the
transmission side that adds CRC to messages. The receiving side regenerates CRC of received
messages and compares generation results of CRC regeneration with CRC values actually received.
If values do not match, data will be aborted.
■ Flow
A procedure for generating a CRC is:
CRC generation ( )
1, Load a 16–bit register with FFFF hex (all 1’s). Call this
the CRC register.
CRC initial data: FFFF
2. Exclusive OR the first 8–bit byte of the message with the
low–order byte of the 16–bit CRC register, putting the
result in the CRC register.
Byte counter n = 0
Nｏ
Byte counter n < Length
3. Shift the CRC register one bit to the right (toward the
LSB), zero–filling the MSB. Extract and examine the
LSB.
Yes
CRC = (CRC XOR nth send byte
(0 expanded to word (higher 8
bits))
4. (If the LSB was 0): Repeat Step 3 (another shift).
(If the LSB was 1): Exclusive OR the CRC register with
the polynomial value A001 hex (1010 0000 0000 0001).
Bit counter = 0
Nｏ
Bit counter < 8
Yes
5. Repeat Steps 3 and 4 until 8 shifts have been per-
formed. When this is done, a complete 8–bit byte will
have been processed.
C = (Remainder of CRC ÷ 2)
ＣＲＣ >> １
Nｏ
6. Repeat Steps 2 through 5 for the next 8–bit byte of the
message. Continue doing this until all bytes have been
processed.
Is remainder (C)
other than 0?
Yes
CRC＝
(CRC XOR generating polyno-
mial (A001))
7. The final contents of the CRC register is the CRC value.
8. When the CRC is placed into the message, its upper and
lower bytes must be swapped as described below.
Bit counter +1
Byte counter +1
End (Return CRC)
5.3. Error codes
In case of the following errors, the return commands from the inverters are added 80h to the com-
mands received by the inverters. The following error codes are used.
Error Code
01
Description
Command error (Returned when a command other than 03 or 06 is received)
Communication number error (A communication number is not found when Com-
mand 03 or 06 is received)
02
03
Data range error (Data range error when Command 03 or 06 is received
Unable to execute (Command 06 is being received and data cannot be written)
(1) Writing in write-disable-during-operation parameter
04
(2) Writing in parameter that is executing TYP
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6. Inter-drive communication
Inter-drive communication function enables manipulation of multiple inverters without using the host
computer such as the PLC and the PC. This function is utilized for "speed proportional control". The
command is instructed by the operation from the master inverter’s panel or analog input, etc.
With the Inter-drive communication function, the master inverter continues to transmit the data se-
lected by the parameters to all the slave inverters on the same network. The master inverter uses the
S command for outputting instructions to the slave inverters, and the slave inverters do not return the
data. (See chapter 4.2 "Command".) Network construction for a simple synchronized operation and
speed-proportional operation can be created by this function.
The inverters on the slave side are always ready to receive messages during inter-drive communica-
tions and perform slave operation in response to requests made by the inverters on the master side
or computer requests during inter-drive communications. The inverters on the master side are al-
ways ready to send messages during inter-drive communications and do not receive data.
To use the inter-drive communication function, select “TOSHIBA Inverter Protocol” (=) in
the communication protocol selection parameters. “TOSHIBA Inverter Protocol” (=) is set
for communication protocol selection in Shipment setting. (See “3. Communication protocol.”)
<Conceptual illustration>
Slave 1 (50Hz)
VF-S11
Slave 2 (40Hz)
VF-S11
Slave 3 (30Hz)
VF-S11
Master (60Hz)
VF-S11
*
A
RS485 communication converter unit (RS4001Z,
RS4002Z or RS4003Z) will be needed to control multiple
inverters on the network.
Analog input
<Notes>
Speed command can be transmitted but the run / stop signal is not issued. Slave station should have an individual
stop signal or the function to stop the action by the frequency reference. (Setting is necessary for : Opera-
tion starting frequency, : Operation starting frequency hysteresis .)
For continuing the operation by the last received command value in the case of a communication breakdown,
provide a communication time-out interval () to trip the slave inverters. The master inverter does not trip
even though the communication breakdown happens. To trip the master inverter, provide an interlock mechanism
by installing an FL fault relay point or the like from the slave side.
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■ Setting of parameter
●Selection of communication protocol () Shipment setting: 0 (TOSHIBA Inverter Protocol)
Protocol setting with all inverters (both master and slave inverters) engaged in inter-drive commu-
nications
0: Set the TOSHIBA Inverter Protocol.
* Inter-drive communications are disabled when the MODBUS-RTU protocol is selected.
* This parameter is validated after resetting the inverter or rebooting the power supply.
● Setting of master and slave inverters for communication between inverters (setting of master and
slave) () ... Shipment setting =
Assign one master inverter in the network. Other inverters should be the slave inverters.
*Specify only one inverter as the master. In case two or more inverters are designated for the
master inverter in the same network, data will collide.
- Setting to the master inverter
Set data desired for sending from the master side to the slave side.
:Master inverter(transmission of frequency commands) : Master inverter (transmission of
output frequency signals)
- Setting to the slave inverters
Set the desired action on the slave side that will be needed when the master trips.
: Sets the frequency command value to 0Hz. (Output frequency is limited by low-limit frequency)
: Normal operation is continued
(If an output frequency is set on the master side, the output frequency of the master side be-
comes 0Hz due to tripping and the frequency of commands to the slave side becomes 0Hz.)
: Makes an emergency stop (“E” trip).
(The method to stop follows the setting in “Emergency stop selection ()”
*This parameter is validated after resetting the inverter or rebooting the power supply.
• Communication waiting time () ... Shipment setting =
- Setting to the master inverter
Set up more than 0.03 seconds as a transmitting interval on the master side to wait for the proc-
essing time on the slave side(= ).
● Speed setting mode selection () ... Shipment setting = : Built-in potentiometer
Designate a target of speed command input for the inverter to the parameter .
- Setting to the master inverter
Designate a number except for “: serial communication ” ( ≠).
- Setting to the slave inverters
Designate “: serial communication ” ( =).
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■ Relating communication parameters
Following parameters should be set or changed if necessary.
• Communication baud rate ()... Shipment setting = : 9600bps
Baud rate of all inverters in the network (master and slave) should be same network.
• Parity () ... Shipment setting = : Even parity
Parity of all inverters in the network (master and slave) should be same network.
• Communication error trip time() ... Shipment setting =
Operation is continued by the last received command value in the case of a communication break-
down. To stop the operation of inverter, provide a communication time-out interval (ex. =)
to the slave inverters. The master inverter does not trip even though the communication breakdown
happens. To trip the master inverter, provide an interlock mechanism by installing a FL fault relay
point or the like from the slave side.
• Frequency point selection ()
Adjusted to the system.
See chapter “6.1 Speed proportional control” for details.
■ Setting example of parameters
Parameters relating to the master side (example)
Parameters relating to the slave side (example)
Master (transmission of output frequency
Slave (0Hz command issued in case the master inverter
fails)
Selection of communication protocol
(Toshiba inverter protocol)
Communication time-out (ex. 1 second)
Communication baud rate (same to the master side)
Parity (same to the master side)
Terminal block (ex. Driven by F, ST)
( Run and stop of operation is controlled with the frequency
reference value by setting the “run frequency”.)
(%) (100% at FH))
Selection of communication protocol
(Toshiba inverter protocol)
Communication baud rate
(ex. 19200bps)
Parity (even parity)
Example: Panel
Example: Built-in potentiometer
Communication waiting time
(ex. 30msec)
< For speed control >
Serial communication
?
Adjusted to the system Point 1 setting (%)
?
?
?
Ditto
Ditto
Ditto
Point 2 frequency (Hz)
Point 2 setting (%)
Point 2 frequency (Hz)
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6.1. Speed proportional control
Various inclinations can be set by frequency point setting.
The frequency command value on the slave side during inter-drive communication can be expressed
by the following formulas.
If inter-drive communication is not selected (=), point conversion is not performed.
Point conversion is performed only when the command “S” is received.
(Ex.)
< unit > Frequency unit: 1=0.01(Hz), point setting unit: 1=0.01%
Maximum
frequency
()
Point 1
setting
()
Point 1 fre-
quency
()
Point 2
setting
()
Point 2
frequency
()
Frequency
(Fc)
Master (Fc)
Slave 1
100.00Hz
(10000)
50.00Hz
(5000)
－
－
－
－
100.00Hz
(10000)
0.00%
(0)
0.00Hz
(0)
100.00%
(10000)
100.00%
(10000)
90.00Hz
(9000)
45.00Hz
(4500)
Slave 2
100.00Hz
(10000)
0.00%
(0)
0.00Hz
(0)
80.00Hz
(8000)
40.00Hz
(4000)
Sending data from the master:
Master side fc×10000
5000×10000
Master send fc(%) =
=
= 5000
=
50%
Master side FH
10000
Slave frequency Command(Hz)=
Point 2 frequency(F813) - Point 1frequency(F812)
Point 2(F814) - point 1(F811)
x (Master command (%) - Point 1(F811)) + Point 1 frequency(F812)
By the point conversion process,
9000 − 0
10000 − 0
Slave 1: fc(Hz) =
× (5000 − 0)＋0 = 4500 = 45Hz
8000 − 0
10000 − 0
Slave 2: fc(Hz) =
× (5000 − 0)＋0 = 4000 = 40Hz
【Diagram of speed proportional control】
→<Inverter’s internal computation>
<Outside>←
(Note)fc=frequency reference, FH=Maximum frequency
Point conversion
(Hz)
Point2 Frequency()
Slave command (Hz)
Point1 Frequency()
Master FC
Slave command (Hz)
Master send data＝
×10000
Master FH
Master command (%)
Point1
()
Point2
（)
（％)
Master command (%)
F814−F812
F813−F811
Slavecommand(Hz) =
×(Master command(%)－F811）＋F812
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6.2. Transmission format for inter-drive communication
Data type is handled in hexadecimal notation and the transmission characters are treated with the
binary (HEX) code.
The transmission format is basically the same to the case of binary mode. S command is used and
the slave inverters do not return the data.
■ Master inverter (VF-S11) to slave inverter (VF-S11) (Binary mode)
Omission
“／”
INV-NO
1 byte
CMD
1 byte
Communication number
2 bytes
DATA
2 bytes
SUM
1 byte
(2FH)
Checksum range
Not omissible
1) INV-NO (1 byte)
2) CMD (1 byte)
: Inverter number
This is always excluded at the master inverter side at time of inter-drive communication, and
can be added when the user utilize this data for the purpose of proportional operation.
(When this code is added, only the inverter concerned will accept the data.)
: Command
53H(“S”) or 73(“s”) command ... command for inter-drive communication
When the master inverter is not tripping, this will be 53H(“S”).
When the master inverter is tripping, this will be 73H(“s”).
3) Communication number (2 bytes)
:
Communication number of frequency command (FA01).
: Data of frequency command value.
4) DATA (2 bytes)
(0000H to FFFFH (no range check))
As for the S command, see section 4.2 “Commands”, and see chapter “6 Inter-drive communication function” for the
communication of inverters.
39
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E6581222
7. Communications parameters
The settings of communication-related parameters can be changed from the operation panel and the
external controller (computer). Note that there are two types of parameters: parameters whose set-
tings take effect immediately after the setting and parameters whose settings do not take effect until
the inverter is turned back on or reset.
Com-
munica-
tion
Default
setting
Title
Function
Adjustment range
Unit
Valid
Reference
Number.
0: 1200bps
1: 2400bps
2: 4800bps
3: 9600bps
4: 19200bps
0: NON (No parity)
1: EVEN (Even parity)
2: ODD (Odd parity)
Communication
baud rate
0800
-
-
3
1
After reset.
After reset.
Section 7.1
Section 7.1
0801
Parity
0802
0803
Inverter number
0-255
1
0
0
Real time
Real time
Section 7.2
Section 7.3
Communication
error trip time
Communication
waiting time
0: (disabled)
1-100
1s
0805
0.00-2.00s
0.01s
0.00
Real time
Section 7.4
0: Slave inverter (0 Hz command issued
in case the master inverter fails)
Setting of master
and slave inverters
1: Slave inverter (Operation continued in
case the master inverter fails)
for communication 2: Slave inverter (Emergency stop trip-
0806
-
0
After reset.
Chapter 6
between inverters
(setting of master
and slave)
ping in case the master inverter fails)
3: Master inverter (transmission of fre-
quency commands)
4: Master inverter (transmission of output
frequency signals)
0811
0812
0813
0814
Point 1 setting
0-100
1%
0.01Hz
1%
0
Real time
Real time
Real time
Real time
Point 1 frequency 0.0-500.0Hz
Point 2 setting 0-100
0.0
Section 6.1
Chapter 3
100
60.0
Point 2 frequency 0.0-500.0Hz
Selection of com-
munication proto-
col
0.01Hz
0: Toshiba inverter protocol
1: Modbus-RTU protocol
0829
0870
-
-
0
After reset.
0: No selection
Block write data 1
Block write data 2
Block read data 1
1: Command information 1
2: Command information 2
3: Frequency command
4: Output data on the terminal board
5: Analog output for communications
0: No selection
0
After reset.
0871
0875
0876
0877
0878
1: Status information
Section
4.1.3
Block read data 2 2: Output frequency
3: Output current
Block read data 3
4: Output voltage
-
0
0
5: Alarm information
Block read data 4
After reset.
Real time
6: PID feedback value
7: Input terminal board monitor
8: Output terminal board monitor
9: VIA terminal board monitor
10: VIB terminal board monitor
0879
0880
Block read data 5
Free notes
0-65535
1
Section 7.5
40
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E6581222
7.1. Communication baud rate() , Parity bit()
•Communication baud rate and parity bit should be uniform inside the same network.
•This parameter is validated by resetting the power supply.
7.2. Inverter number()
This parameter sets individual numbers with the inverters.
Inverter numbers should not be duplicate inside the same network.
Receiving data will be canceled if inverter numbers specified in individual communications and set by
a parameter do not match.
This parameter is validated from the communication after change
Data range: 0 to 255 (Initial value: 0)
Parameters can be selected between 0 and 255. Note that the communication protocols limit in-
verter numbers as follows:
● TOSHIBA Inverter Protocol ASCII mode: 0 to 99
● TOSHIBA Inverter Protocol Binary mode: 0 to 63
● MODBUS Protocol: 0 to 247
41
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E6581222
7.3. Timer function()
This function detects any normal data that is not detected even once within an arbitrarily predeter-
mined time.
The timer function is used to detect breaks in cables during communications and to trip an inverter
() if the inverter has received no data within the time specified using this function. If the in-
verter number does not match or if a format error occurs, preventing the inverter from returning data
to the computer, this function will assume that the inverter has not received any data.
■ How to set the timer
The communication error trip time parameter () is set to 0 (timer off) by default.
* Timer adjustment range
About 1 sec. (01H) to about 100 sec. (64H) / Timer off (0H)
■ How to start the timer
If the timer is set from the operation panel, it will start automatically the instant when communication
is established for the first time after the setting.
If the timer is set from the computer, it will start automatically the instant when communication is es-
tablished after the setting.
If the timer setting is stored in the EEPROM, the timer will start when communication is established
for the first time after the power has been turned on.
Note that, if the inverter number does not match or if a format error occurs, preventing the inverter
from returning data, the timer function will assume that no communication has taken place and will
not start.
■ How to disable the timer
To disable the timer, set its parameter to 0.
Ex.:To disable the timer function from the computer (To store the timer setting in the EEPROM)
Computer → Inverter
Inverter → Computer
(W08030)CR
(W08030000)CR
... Sets the timer parameter to 0 to disable it.
■ Timer
Time-out period
The timer measures the time
elapsed before the inverter ac-
knowledges receipt of data after it
acknowledged receipt of the previ-
ous data.
Computer link
PC → INV
PC → INV
INV → PC
42
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E6581222
7.4. Setting function of communication waiting time ()
Use this function for the following case:
When the data response from the inverter is too quick after the PC had sent the data to the inverter,
PC process cannot get ready to receive the data, or when the RS485/RS232C converter is used,
changeover of sending and receiving data takes much time in the converter process.
The case of " Inter-drive communication ", set up more than 0.03 seconds as a transmitting interval
on the master side to wait for the processing time on the slave side(= ).
* This function, however, does not operate in case the MODBUS-RTU protocol is selected in com-
munication protocol selection. (=)
Functional specification:
A time for sending data is prolonged longer than the preset time, until the inverter returns the data to
the PC, after it finishes receiving the data (in case of an inter-drive communication, until the inverter
returns the next data to the PC, after it has sent the data.) In case the inverter's processing capacity
requires longer setting time, the value more than this time will be the set value. (The parameter mak-
es the inverter wait for more than the set time.)
Setting range: to seconds (10ms to 2000ms)
If the set value is , this function becomes invalid and the interval time for sending data is set to the
maximum capacity of the inverter. To obtain a quick response for sending data, set value .
Time from the confirmation of the
data reception (transmission, in the
Time elapses more than
transmission waiting time.
case of inter-drive communication)
Computer link
→
PC INV
to the transmission of data, is
adjusted.
→
INV PC
If the inverter's processing time
requires longer time than the
transmission waiting time, the time
is prolonged.
Time elapses more than the
transmission waiting time.
Inter-drive
communication
Master INV
to Slave INV
Master INV to
Slave INV
7.5. Free notes()
This parameter allows you to write any data, e.g., the serial number of each inverter or parameter
information, which does not affect the operation of the inverter.
43
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E6581222
8. Commands and monitoring from the computer
Across the network, instructions (commands and frequency) can be sent to each inverter and the
operating status of each inverter can be monitored.
8.1. Communication commands (commands from the computer)
■ Communication command (Communication number: FA00)
Commands can be executed on inverter frequencies and operation stop through communications.
The VF-S11 series can enable command and frequency settings through communications irrespec-
tive of settings of the command mode () and frequency mode (). However, if “48:
Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed” is set by in-
put terminal function selection ( to ), a change to a command other than communica-
tion and to a frequency command is feasible through a contact on the terminal board.
Once the communication command (FA00) is set to enable communication command priority and
frequency priority, both priorities will be enabled unless OFF is set, power is turned off or is reset, or
standard shipment setting () is selected. Emergency stop, RY terminal output hold and OUT
terminal output hold are always enabled even though communication command priority is not set.
Table 1 Data construction of communication commands (communication number: FA00)
bit Specifications
0
1
S7 S9/nC1/S11
Remarks
0 Preset speed operation Preset speed operation is disabled or 9
9
Preset speed operation can be
disabled or a preset speed op-
eration frequencies (1-15) can
be specified by combining 4 bits
variously.
frequencies 1
preset speed operation frequencies (1-
15) are set by specifying bits for preset
speed operation frequencies 1-4.
(0000: Preset speed operation OFF,
001-1111: Setting of preset speed
operation frequencies (1-15))
1 Preset speed operation
frequencies 2
2 Preset speed operation
frequencies 3
3 Preset speed operation
frequencies 4
4 Motor selection (1 or 2)
(THR 2 selection)
Motor 1
(THR 1)
Motor2
(THR2)
-
9
THR1 : PT=set value, vL, vb, tHr
THR2 : PT=0, F170, F172, F173
5 PI control
Normal operation
Accelera-
tion/deceleration
pattern 1 (AD1)
OFF
PI OFF
-
9
9
6 Acceleration/deceleration
pattern selection (1 or 2)
(AD2 selection)
Accelera-
tion/deceleration
pattern 2 (AD2)
9
AD1 : ACC, DEC,
AD2 : F500, F501
7 DC braking
Forced DC braking 9
9
9
9
8 Jog run
OFF
Jog run
9
9
9 Forward/reverse
selection
run
Forward run
Reverse run
10 Run/stop
Stop
Standby
OFF
Run
9
9
9
9
9
9
11 Coast stop command
12 Emergency stop
13 Fault reset
Coast stop
Emergency stop 9
“E” trip
OFF
Reset
9
9
9
No data is returned from the
inverter.
14 Frequency priority selec-
OFF
OFF
Enabled
Enabled
9
9
Enabled regardless of the set-
ting of
tion
15 Command priority selec-
tion
Enabled regardless of the set-
ting of
Note: For the reset command, no data will be returned.
Ex.: Forward run: (PFA008400) CR
1 is specified for bit 15 (communication command: enabled) and bit 10 (operation command).
BIT15
BIT0
0
FA00:
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
8
4
0
0
Ex.: Reverse run: (PFA008600) CR, (PFA00C600) CR
8600H : To disable frequency instructions from the computer
C600H : To enable also frequency instructions from the computer
44
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„ Communication command2 (Communication Number : FA20)
This command is enabled only when the communication command is enabled. Set Bit 15 of Com-
munication Command 1 (communication Number: FA00) to “1” (enable). When enabling the com-
munication command by Communication Command 1, commands by communications can be given
the priority irrespective of the setting of the command mode selection parameter (). How-
ever, if “48: Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed”
is set by input terminal function selection ( to ), the enabled command and frequency
will be given the priority.
Once enabled, this setting will be enabled till disable is set (0 setting), power is turned off or is reset,
or standard shipment setting () is selected.
Table 2 Data construction of serial communication command 2 (FA20)
Bit
Function
0
1
Remarks
0
(Reserved)
－
－
electric power quantity
reset
electric power quantity
(FE76, FE77) reset
1
ＯＦＦ
Reset
2
3
4
5
6
7
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
－
－
－
－
－
－
－
－
－
－
－
－
Acceleration/deceleration
pattern selection 1
Select Acceleration/ de-
celeration 1 - 3 by combi-
nation of two bits
8
00: Acceleration/deceleration 1
01: Acceleration/deceleration 2
10: Acceleration/deceleration 3,
11: Disabled (Accelera-
AD1: ACC, DEC
AD2: F500, F501
AD3: F510, F511
Acceleration/deceleration
pattern selection 2
9
tion/deceleration 3)
10
11
(Reserved)
(Reserved)
－
－
－
－
Over-current stall level
change
OC1: F601
OC2: F185
12
OC stall 1
OC stall 2
13
14
15
(Reserved)
(Reserved)
(Reserved)
－
－
－
－
－
－
Note: The acceleration/deceleration change command ORs with Bit 6 of Communication number
FA00. Set Bit 6 of FA00 to “0” and use FA20 when changing acceleration/deceleration in
three types. Acceleration/deceleration 3 will be set when both Bit 8 of Communication num-
ber FA20 (or Bit 6 of Communication number FA00) and Bit 9 of Communication number
FA20 are set.
45
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E6581222
„ Communication command3 (Communication number: FA26)
The RY Terminal Output Hold Command and OUT Terminal Output Hold Command are always en-
abled even though communication command priority is not set.
Table 3 Data construction of Serial Communication Command 3 (FA26)
Bit
Function
0
1
Remarks
Once it is turned
on, a RY terminal
holds that condi-
tion.
Always enabled even if
communication command
is not enabled
0
RY terminal output hold
OFF
Once it is turned
on, an OUT ter-
minal holds that
condition.
Always enabled even if
communication command
is not enabled
1
OUT terminal output hold
OFF
2
3
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
4
5
6
7
8
9
10
11
12
13
14
15
„ Frequency setting from the computer (communication number: FA01)
Setting range: 0 to Maximum frequency ()
This frequency command is enabled only when the frequency command by communication is en-
abled by setting “serial communication (“3” for Communication Number FA04) by the speed com-
mand selection parameter () or setting command priority (Bit 14 of Communication Number
FA00 to “1” (enable)) by the communication command. In this case, frequency commands by
communication will be enabled independent of setting. However, enabled commands and
frequencies are given the priority if “48: Forced change from communication to local,” “52: Forced
operation,” or “53: Fire speed” is set by input terminal function selection ( to ).
Once enabled, this frequency setting will be enabled till disable is set (0 setting), power is turned off
or is reset, or standard shipment setting () is selected.
Set a frequency by communication hexadecimal in Communication Number FA01. (1 = 0.01Hz
(unit))
Example: Operation frequency 80Hz command (PFA011F40) CR
80Hz = 80 ÷ 0.01 = 8000 = 1F40H
46
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8.2. Monitoring from the computer
This section explains how to monitor the operating status of the inverter from the computer.
„ Monitoring of the operation frequency from the computer (FE00, FD00)
Operation frequency (frequency immediately before the occurrence of a trip):
Communication Number FE00 (Minimum unit: 0.01 Hz)
Operation frequency (current frequency): Communication Number FD00 (Minimum unit: 0.01 Hz)
Ex.:Monitoring of operation frequency (during 50 Hz operation) ... (1388H = 5000d, 5000 x 0.1 = 50
Hz)
Computer → Inverter
Inverter → Computer
(RFD00) CR
(RFD001388) CR
„ Inverter operating status (FE01, FD01)
Operating status (status immediately before the occurrence of a trip):
Communication Number FE01
Communication Number FD01
Operating status (current status):
Table 2 Data construction of inverter operating status (FE00/FD00) (*: FD01 supports the VF-S11 and later models.)
Bit Specifications
0 Failure FL
0
1
S7 S9 S11/nC1
Remarks
No output
Output in prog- - -
ress
9
1 Failure
Not tripped
Tripped
- -
9
Trip statuses include
and trip retention status.
2 Alarm
No alarm
-
Alarm issued - -
9
-
3 Reserved
-
- -
4 Motor section (1 or 2)
(THR 2 selection)
5 PI control OFF
Motor 1 (THR 1) Motor 2 (THR 2) - 9
9
THR1: PT=set value, vL, vb, Thr
THR2:PT=0, F170, F172, F173
PI control
permitted
PI control
prohibited
- 9
9
9
6 Acceleration/deceleration
pattern selection (1 or 2)
Acceleration/
deceleration
Acceleration/ 9 9
AD1 :ACC, DEC,
AD2 :F500, F501
deceleration
pattern 1 (AD 1) pattern 2 (AD 2)
7 DC braking
OFF
Forced DC
braking
9 9
9 9
9
8 Jog run
OFF
Forward run
Stop
Jog run
9
9
9
9
9
9 Forward/reverse run
10 Run/stop
Reverse run 9 9
Run
9 9
- 9
11 Coast stop (ST=OFF)
12 Emergency stop
ST=ON
ST=OFF
Not emergency Emergency stop - 9
stop status
status
13 Standby ST=ON
Start-up process
Standby
- -
9
Standby: Initialization completed,
not failure stop status, not alarm
stop status (MOFF, LL forced
stop or forced stop due to a
momentary
power
failure),
ST=ON, and RUN=ON
14 Standby
Start-up process
Standby
- -
9
Standby: Initialization completed,
not failure stop status, and not
alarm stop status (MOFF, LL
forced stop or forced stop due to
a momentary power failure)
15 Reserved
-
-
- -
-
47
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„ Inverter operating status3 (FE42, FD42)
Operating status 3(status immediately before the occurrence of a trip):
Communication Number FE42
Communication Number FD42
Operating status 3(current status):
Bit
0
Function
(Reserved)
0
－
1
－
Remarks
1
Electric Power Counting
(FE76,FE77) status
(Reserved)
Counting
Resetting
－
－
－
－
－
－
－
－
－
－
－
－
2
3
4
5
6
7
8
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
Acceleration/deceleration
pattern selection1
Acceleration/deceleration
pattern selection2
(Reserved)
00:Acceleration/deceleration 1
01:Acceleration/deceleration 2
10:Acceleration/deceleration 3
Acceleration/ decelera-
tion 1 - 3 can be speci-
fied by combination of
two bits
9
－
－
－
－
10
11
12
(Reserved)
Over-current stall level change
OC stall 1
OC stall 2
OC1:F601
OC2:F185
－
－
－
－
－
－
13
14
15
(Reserved)
(Reserved)
(Reserved)
„ Inverter operating status4 (FE49, FD49)
Operating status 4(status immediately before the occurrence of a trip):
Communication Number FE49
Operating status 4(current status):
Communication Number FD49
Bit
0
Function
0
1
Remarks
RY terminal output hold
OUT terminal output hold
OFF
OFF
－
Holding
Holding
－
1
2 to 15 (Reserved)
48
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„ Inverter operating command mode status (FE45)
The monitor of the command mode that the present condition is enabled
Data
Enabled command
Terminal board
0
1
2
Operation panel
Serial communication
„ Inverter operating frequency mode status (FE46)
The monitor of the frequency command mode that the present condition is enabled
Note that Preset speed operation frequencies is given the priority independent of the frequency
mode, in which case this monitor will be disabled, in case Preset speed operation frequencies is se-
lected.
Data
Enabled frequency
Potentiometer at Operation panel
VIA
0
1
2
3
4
5
6
VIB
Operation panel
Serial communications
TB up down frequency
VIA + VIB
49
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E6581222
„ Alarm information monitor (FC91)
Remarks
Bit
Specifications
Over-current alarm
0
1
(Code displayed on the panel)
0
1
Normal
Normal
Normal
Normal
Normal
Normal
-
Alarming
Alarming
Alarming
Alarming
Alarming
Alarming
-
flickering
flickering
Inverter overload alarm
Motor overload alarm
Overheat alarm
flickering
flickering
flickering
2
3
4
Overvoltage alarm
Main circuit undervoltage alarm
(Reserved)
5
-
-
-
-
-
-
6
7
Low current alarm
Normal
Normal
Normal
Normal
Alarming
Alarming
Alarming
Alarming
8
Over-torque alarm
Braking resistor overload alarm
9
Cumulative operation hours
alarm
10
11 (Reserved)
-
-
-
12 (Reserved)
-
-
-
13 Main-circuit voltage error alarm
Normal
-
Alarming
“ flickering
At the time of the instant black-
Decelerating, Related: F256 setting
stopping
14
out, Forced deceleration/stop
An automatic stop during the
lower limit frequency continu-
Decelerating, Related: F302 setting
stopping
15
-
ance
„ Cumulative operation time alarm monitor (FE79)
Bit
0
Specifications
Fan life alarm
0
1
Remarks
Normal
Normal
Normal
Normal
-
Alarm issued
Alarm issued
Alarm issued
Alarm issued
-
-
-
-
-
-
1
Circuit board life alarm
Main-circuit capacitor life alarm
User set alarm
2
3
4-15 (Reserved)
50
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„ Trip code monitor (current status: FC90: historic records: FE10 to FE13)
Data
Data
(hexadeci-
mal number)
(decimal
number)
Code
Description
0
0
1
2
3
4
5
8
9
No error
nerr
oc1
1
2
Over-current during acceleration
Over-current during deceleration
Over-current during constant speed operation
Over-current in load at startup
Short circuit in arm
oc2
3
oc3
4
ocl
5
oca
8
Input phase failure
ephi
epho
op1
9
Output phase failure
A
10 Overvoltage during acceleration
11 Overvoltage during deceleration
12 Overvoltage during constant speed operation
13 Over-LOAD in inverter
14 Over-LOAD in motor
B
op2
C
op3
D
ol1
E
ol2
10
11
12
13
14
15
16
17
18
1A
16 Overheat trip
oh
17 Emergency stop
e
18 EEPROM fault 1 (writing error)
19 EEPROM fault 2 (reading error)
20 EEPROM fault 3 (internal fault)
21 RAM fault
eep1
eep2
eep3
err2
err3
err4
err5
err7
22 ROM fault
23 CPU fault
24 Communication error trip
26 Current detector fault
1B
1D
1E
20
22
25
26
27
29
2E
2F
32
33
34
35
54
27 Optional circuit board type error
29 Small-current trip
err8
uc
30 Trip due to undervoltage in main circuit
32 Over-torque trip
up1
ot
34 Ground fault trip (hardware detection)
37 Overcurrent flowing in element during acceleration
38 Overcurrent flowing in element during deceleration
39 Overcurrent flowing in element during operation
41 Inverter type error
ef2
oc1p
oc2p
oc3p
etyp
oh2
46 External thermal input
47 PM motor step-out
sout
e-18
e-19
e-20
e-21
etn1
VIA cable break in an analog signal cable
50
51 CPU fault
52 Excess torque boost
53 CPU fault
84 Auto-tuning error
51
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„ Inverter model (capacity) code (FB05)
Data
Data
(decimal number)
Model
(hexadecimal number)
VFS11-2002PM-AN
VFS11-2004PM-AN
VFS11-2007PM-AN
VFS11-2015PM-AN
VFS11-2022PM-AN
VFS11-2037PM-AN
VFS11-2055PM-AN
VFS11-2075PM-AN
VFS11S-2002PL-AN
VFS11S-2004PL-AN
VFS11S-2007PL-AN
VFS11S-2015PL-AN
VFS11S-2022PL-AN
VFS11-4004PL-AN
VFS11-4007PL-AN
VFS11-4015PL-AN
VFS11-4022PL-AN
VFS11-4037PL-AN
VFS11-4055PL-AN
VFS11-4075PL-AN
VFS11-4110PL-AN
VFS11-4150PL-AN
VFS11-2110PM-AN
VFS11-2150PM-AN
1
1
2
2
4
4
6
6
7
7
9
9
A
10
11
25
26
28
30
31
34
36
38
39
41
42
43
44
45
108
109
B
19
1A
1C
1E
1F
22
24
26
27
29
2A
2B
2C
2D
6C
6D
52
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E6581222
8.3. Control of input/output signals from communication
The input terminals, output terminals, analog input and output signals of the inverters can be con-
trolled by communications.
„ Terminal Output Data (FA50)
The output terminals on the inverters can be controlled directly by communications.
Before controlling them, select Function Number 38 to 41 in Output Terminal Function Selection
( - , ,). Set data (0 or 1) can be output to the output terminals by
setting data of Bit 0 and Bit 1 of terminal output data (FA50) by communications.
Data construction of Terminal Output Data (FA50)
Bit
0
Output Terminal Function
Specified data output 1
0
1
OFF
ON
(Output terminal selection Number : 38, 39)
Specified data output 2
1
OFF
ON
(Output Terminal Selection Number : 40, 41)
－
－
－
2 to 15
Example : Controlling only Terminal OUT1 by communication
Set “38” (specified data output 1 [positive logic]) in Output Terminal Selection 1 () in
advance and set “0001H” in FA50 to turn Terminal OUT1 on.
BIT15
BIT0
1
FA50:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
„ Analog Output Data (FA51)
The analog terminals on the inverters, such as Terminal FM can be controlled directly by communi-
cations.
Select “18” (communication analog output) in Analog Terminal Connection Selection Parameters
(example: FM terminal connection meter selection []) before controlling them.
Data set in Analog Output Data (FA51) can be output from the selected analog terminal. The data
adjustment range is 0 to 1023 (10bit resolution) . Refer to “Meter Setting and adjustment” in the in-
struction manual for inverters for the complete information.
53
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E6581222
„ Input terminal board status (FD06, FE06)
Input terminal board status (status immediately before the occurrence of a trip):
Communication Number FE06
Communication Number FD06
Input terminal board status (current status):
In case “0: No assignment function” is selected in function selection, inverter operations will not be
affected even when terminals are turned on and off. Therefore, the terminals can be used as input
terminals for customer’s own use.
The input terminal function selection parameter is used to select a function for each input terminal.
When monitoring the operating status, check what function is assigned to each internal terminal.
Data construction of input terminal board (FE06)
Bit
Terminal name (extended)
Function (parameter title)
Input terminal selection 1 (f111)
Input terminal selection 2 (f112)
Input terminal selection 3 (f113)
Input terminal selection 4 (f114)
Input terminal selection 5 (f115)
Input terminal selection 6 (f116)
Input terminal selection 7 (f117)
Input terminal selection 8 (f118)
-
0
1
0
F
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
-
ON
ON
ON
ON
ON
ON
ON
ON
-
1
R
2
RES
S1
3
4
S2
5
S3
6
7
VIB *1
VIA *1
8 ~ 15
-
*1: It is valid only when it is selected as contact input by .
It is effective only when it is chosen with F109 for input of a contact point.
Ex.: FE06 data when the F and S1 terminals are ON: 0009H
BIT15
BIT0
1
FE06:
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
9
0
„ Output terminal board status (FD07, FE07)
Output terminal board status (status immediately before the occurrence of a trip):
Communication Number FE07
Communication Number FD07
Output terminal board status (current status):
The output terminal function selection parameter is used to select a function for each output terminal.
When monitoring the operating status, check what function is assigned to each output terminal.
Data construction of output terminal board (FD07,FE07)
Bit
Terminal name
Function (parameter title)
Output terminal selection1(f130)
Output terminal selection1(f131)
Output terminal selection3(f132)
-
0
1
0
RY
OUT
FL
OFF
OFF
OFF
-
ON
ON
ON
-
1
2
3 ∼ 15
-
Ex.: FE07 data when both the RY and OUT terminals are ON: 0003H
BIT15
BIT0
FE07:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
3
54
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E6581222
„ Analog Input Monitors (FE35, FE36)
Analog input value VIA monitor: “Communication Number FE35”
Analog input value VIB monitor: “Communication Number FE36”
Data: 10bit resolution (Data range 0 to 1023)
These monitors can also be used as an A/D converter independent of inverter control.
Setting except for “VIA” as the frequency setting mode will allow analog input (VIA) as an A/D con-
verter independent of inverter control.
Setting other than “VIB” as the frequency setting mode will allow analog input (VIB) as an A/D con-
verter independent of inverter control.
Note, however, input data to analog terminals will be regarded as frequency commands in case
analog input is selected in frequency setting mode selection.
55
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E6581222
8.4. Utilizing panel (LEDs and keys) by communication
The VF-S11 can display data that is not related to the inverters through an external controller or other
means. Input by key operations can also be executed. The use of inverter resources reduces the
cost for the entire system.
8.4.1. LED setting by communication
Desired LED information can be displayed by communication.
<How to Set>
Set the standard monitor display selection parameter to “communication LED setting (=).”
When in the standard monitor mode status, LED information is displayed according to the setting of
Communication Number FA65. (Is set to Communication Number FA65 = 1 and initial data “dAtA”
in shipment setting)
In case of an alarm while setting communication LEDs, the alarm display will alternately display
specified LED data and alarm message.
For example, if an over-current alarm (alarm display “”) occurs while “.” is displayed by this
function, “” and “.” will be displayed alternately.
Commu-
nication
Number.
FA65
Shipment
setting
Parameter Name
Range
Select display by communication
0: Numeric data (FA66, FA67, FA68)
1
1: ASCII data 1 (FA70, FA71, FA72, FA73,
FA74)
2: ASCII data 2 (FA75, FA76, FA77, FA78,
FA79)
FA66
FA67
Numeric display data
(Enabled if FA65=0)
Decimal point position
(Enabled if FA65=0)
0-9999
0
0
0: No decimal point (xxxx)
1: First digit below decimal point (xxx.x)
2: Second digit below decimal point (xx.xx)
0:Hz off, % off, 1:Hz on, % off
2:Hz off, % on, 3:Hz on, % on
0 – 127 (0 – 7FH)
FA68
FA70
LED data 0 for unit
(Enabled if FA65=0)
ASCII display data 1, first digit from
left
0
64H (’d’)
41H (’A’)
74H (’t’)
41H (’A’)
(See ASCII LED display code chart)
(Enabled if FA65=1)
ASCII display data 1, second digit
from left
(Enabled if FA65=0)
ASCII display data 1, third digit from
left
FA71
FA72
FA73
0 – 256 (0 – FFH)
(See ASCII LED display code chart)
0 – 256 (0 – FFH)
(See ASCII LED display code chart)
(Enabled if FA65=1)
ASCII display data 1, fourth digit from 0 – 127 (0 – 7FH)
left
(See ASCII LED display code chart)
(Enabled if FA65=1)
LED data 1 for unit
(Enabled if FA65=1)
ASCII display data 2, first digit from
left
FA74
FA75
0:Hz off, % off, 1:Hz on, % off
2:Hz off, % on, 3:Hz on, % on
0 – 127 (0 – 7FH)
0
30H (’0’)
(See ASCII LED display code chart)
(Enabled if FA65=2)
ASCII display data 2, second digit
from left
(Enabled if FA65=2)
ASCII display data 2, third digit from
left
(Enabled if FA65=2)
ASCII display data 2, fourth digit from 0 – 127 (0 – 7FH)
left
FA76
FA77
FA78
FA79
0 – 256 (0 – FFH)
(See ASCII LED display code chart)
30H (’0’)
30H (’0’)
30H (’0’)
0
0 – 256 (0 – FFH)
(See ASCII LED display code chart))
(See ASCII LED display code chart)
(Enabled if FA65=2)
LED data 2 for unit
(Enabled if FA65=2)
0:Hz off, % off, 1:Hz on, % off
2:Hz off, % on, 3:Hz on, % on
56
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E6581222
„ Block Communication Function for LED Display
To display LED data for ASCII display that is synchronized to each digit, set data for each digit and
validate this set data by display selection by communication (Communication Number FA65). Syn-
chronization can also be achieved by batch writing LED data parameters after changing the following
block communication mode parameters and by sending data by block communication.
Writing in the block communication function will be writing in the RAMs only due to the EEPROM life
for write operations. The LED data will reset to the initial value ““ when the power is turned
off, in failure resetting or when standard shipment settings are set.
■ Parameter Setting
“Block communication mode (Communication Number FA80)”
Setting range: 0, 1 (Initial value 0)
0: Block communication parameters ( - ) is used
1: LED display ASCII data is used (When writing, ASCII display data 1 [Communication Number
FA70 - FA74], when reading, LED data displayed before change)
*To validate LED data set by using LED display block communications, set standard monitor display
selection to “communication LED select ( = ) and display selection by communication to
“ASCII data 1 (Communication Number FA65).
■ Format
The format is the same as that used in the usual block communication mode. (For the detail infor-
mation, see “4.1.3 Block communication transmission format”) The block communication parame-
ters ( - ) will become invalid. Write data will become ASCII display data 1 (Commu-
nication Number :FA70 - FA74) fixed. LED display data that is actually being output will be read
during reading. The specification range for write operations is 0 to 5.
■ Example
Assuming:
Communication LED selection ( = ) for standard monitor display selection.
ASCII data 1 (Communication Number:FA65 = 1) for display selection by communication.
LED display ASCII data (Communication Number: FA80 = 1) for the block communication mode.
Current LED display status is display of initial value “”
PC → Inverter: 2F580505003000310032003300035A・・・“0123” display command
Inverter → PC: 2F59050000640041007400410000E7 ・・ “dAtA” displayed before change
57
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E6581222
■ ASCII LED display data code (00H-1FH are blank.)
Hex Code Display Char. Hex Code
Display
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
Char. Hex Code
Display
Char. Hex Code
Display
Char.
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
13H
14H
15H
16H
17H
18H
19H
1AH
1BH
1CH
1DH
1EH
1FH
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
20H
21H
22H
23H
24H
25H
26H
27H
28H
29H
2AH
2BH
2CH
2DH
2EH
2FH
30H
31HT
32H
33H
34H
35H
36H
37H
38H
39H
3AH
3BH
3CH
3DH
3EH
3FH
SP
40H
41H
42H
43H
44H
45H
46H
47H
48H
49H
4AH
4BH
4CH
4DH
4EH
4FH
50H
51H
52H
53H
54H
55H
56H
57H
58H
59H
5AH
5BH
5CH
5DH
5EH
5FH
BLANK
@
A
B
C
D
E
F
G
H
I
60H
61H
62H
63H
64H
65H
66H
67H
68H
69H
6AH
6BH
6CH
6DH
6EH
6FH
70H
71H
72H
73H
74H
75H
76H
77H
78H
79H
7AH
7BH
7CH
7DH
7EH
7FH
BLANK
`
a
b
c
d
e
f
!
#
$
%
&
g
h
i
(
)
BLANK
BLANK
DGP
*
J
j
+
,
K
L
k
l
-
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[
m
n
o
p
q
r
DGP
.
/
0
1
2
3
4
5
6
7
8
9
:
s
t
u
v
w
x
y
z
{
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
;
<
=
>
?
＼
]
|
}
BLANK
BLANK
^
BLANK
BLANK
Æ
BLANK
_
*Dots to show decimal points and other uses can be added by setting (80H) Bit 7 (highest bit).
Example: “0.” to display “60.0” can be added by “30H + 80H = B0H.”
58
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E6581222
8.4.2.Key utilization by communication
The VF-S11 can use the panel keys on the inverters through external communications. This func-
tion is available with CPU version 1 (Communication Number: FE08) = 104 or higher.
■ Key Monitoring Procedure
Set panel key selection (Communication Number: FA10) to “1” to set the external key mode. How-
ever, if communication duration is less than 1sec to avoid an inverter operation shutdown in commu-
nication disruption, communication must always be maintained, such as monitoring key data and
LED data to automatically reset inverter operations to inverter key operation (FA10 = 0). Set to the
external communication key mode (FA10 = 1) to disable the key function of the inverters so that in-
verter operation will not be affected by pressing of the keys on the inverters. By monitoring key in-
formation, which is input by the keys on the inverters in this condition, through inverter key data
(Communication Number; FC01), the keys on the inverters can be operated through a controller and
other devices.
* When the key mode is the external key mode, key operation as an inverter function is disabled and
the inverters cannot be stopped by pressing the STOP key to stop inverter operation. Enable
emergency stop through an external terminal or other device when an inverter stop is desired.
Panel Key Selection (Communication Number:FA10)
The panel key selection parameter (Communication Number; FA10) discriminates which keys are to be used, panel keys
on the inverters or keys sent by external communications, as panel keys used in panel processing of the inverters.
Communication No.：FC01
Panel key data of inverters
FA10=”0”
Communication No.：FC00
Key data for inverter
control panel processing
Communication No.：FA11
FA10=”1”
External communication
key data
Keys on inverters enabled (Communication Number; FA10 = 0):
Key data: Data of keys on inverters (Communication Number : FC01)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Not
defined
KPP
ENT
MON
DOWN
UP
STOP
RUN
“KPP” for Bit 7 indicates that panel keys are mounted on the inverters.
External keys enabled (Communication Number; FA10 = 1):
Key data: External key data (Communication Number: FA11)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
-
-
ENT
MON
DOWN
UP
STOP
RUN
Key monitoring (Communication Number : FC00):
Information of the enabled keys on the inverters can be monitored.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
KPP
-
ENT
MON
DOWN
UP
STOP
RUN
“KPP” for Bit 7 indicates that panel keys are enabled on the inverters.
59
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E6581222
9.Parameter data
Explanation of parameters for VF-S11 series is described here. For communication purposes, see
the parameter list on inverter's instruction manual regarding the communication number, adjustment
range and so forth.
■ Referring to the parameter list
<Example of excerpts from the inverter’s instruction manual>
Minimum
Com-
setting unit
Default
setting
User
Title
auh
munica-
tion No.
Function
unit
Adjustment range
Reference
4.1.4
Panel/Com
munication
setting
Displays
parameters
in
groups of five in the reverse
order to that in which their
settings were changed.
* (Possible to edit)
-
History function
-
-
-
-
-
-
-
0: Disabled (manual)
1: Automatic
Automatic ac-
celera-
0000
0001
0
0
5.1.1
5.2
2:Automatic (only at accelera-
tion)
tion/deceleration
0:Disabled
1:Automatic torque boost +
autotuning
Automatic tor-
que boost
2:Vector control + auto-tuning
3:Energy saving + auto-tuning
：
：
Acceleration
0009
S
0.1/0.1
0.0-3200
10.0
5.1.2
time1
：
- The summary of parameter list relating to the communication is as follows.
(1) “Title” means the display on the inverter panel.
(2) “Communication number” is affixed to each parameter that is necessary for designating the parameter for com-
munication.
(3) "Adjustment range" means a data range adjustable for a parameter, and the data cannot be written outside the
range. The data have been expressed in the decimal notation. For writing the data through the communication
function, take the minimum setting unit into consideration, and use hexadecimal system.
(4) "Minimum setup unit" is the unit of a single data (when the minimum unit is "-", 1 is equal to 1).
For example, the "minimum setup unit" of acceleration time () is 0.01, and 1 is equal to 0.01s. For setting a
data to 10 seconds, transmit 03E8h [10÷0.01=1000d=03E8h] by communication.
60
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E6581222
■
Command parameters
For those parameters that contain data only in the RAM and not in the EEPROM, their data return to
initial values when the power is turned off, in failure resetting, or when standard shipment settings
are set. Note that parameters without data storage in the EEPROMs will be written in the RAMs
only even if the command W (writing in EEPROMs and RAMs) is executed.
■ Commands NOTE : Data is expressed in decimal notation.
Communica-
Min.
Setting
Unit
Write
During
Operation
Adjustment Range
Initial
Value
EEP
ROM
tion
Num-
ber.(HEX)
Function
FA00 Command 1 (Communication) 0 to 65535
0
0
0
yes None
－
1
＊
FA01 Operation frequency command 0 to Max. frequency 0.01Hz
yes None
1
＊
()
value (Communication)
FA03 Operation frequency command Low-limit frequency 0.01Hz
yes Available
2
value (Panel)＊
() to High-limit
frequency ()
0 to 1
4
Panel key selection＊
－
－
FA10
0
0
yes None
yes None
FA11 External communication key
0 to 65535
4
data＊
FA20 Command 2 (Communication) 0 to 65535
0
0
yes None
yes None
－
－
1
＊
FA26 Command 3 (Communication) 0 to 65535
1
＊
3
Terminal output data＊
FA50
FA51
0 to 65535
1
1
0
0
yes None
yes None
3
Analog output data＊
0 to 1023
(10-bit resolution)
FA65 Select display by communica- 0 to 2
1
yes Available
－
4
tion＊
4
Numerical display data＊
FA66
FA67
FA68
0-9999
0 to 2
1
0
0
0
yes Available
yes Available
yes Available
yes Available
4
Decimal point position＊
－
－
－
4
LED data for unit 0＊
0 to 3
FA70 ASCII display data 1
0 to 127
100
(‘d’)
4
First digit from left＊
FA71 ASCII display data 1
Second digit from left＊
0 to 255
0 to 255
0 to 127
65
(‘A’)
yes Available
yes Available
yes Available
－
－
－
4
FA72 ASCII display data 1
116
(‘t’)
4
Third digit from left＊
FA73 ASCII display data 1
65
(‘A’)
4
Fourth digit from left＊
4
LED data for unit1＊
－
－
FA74
0 to 3
0
yes Available
yes Available
FA75 ASCII display data 2
0 to 127
48
(‘0’)
4
First digit from left＊
FA76 ASCII display data 2
Second digit from left＊
0 to 255
0 to 255
0 to 127
48
(‘0’)
yes Available
yes Available
yes Available
－
－
－
4
FA77 ASCII display data 2
48
(‘0’)
4
Third digit from left＊
FA78 ASCII display data 2
48
(‘0’)
4
Fourth digit from left＊
4
LED data for unit 2＊
－
－
FA79
0 to 3
0 to 1
0
0
yes Available
yes Available
4
Block communication mode＊
FA80
1: Enable the communication command or communication frequency setting before setting these
parameters are set. Otherwise, the parameters will not function. See “8.1 Command by com-
munication” for the method to enable them.
＊
＊
2: Note that the Communication Number for operation frequency command values (panel) is FA02
in the VF-S7 and VF-S9 series.
3: See “8.3 Control of input/output signals from communication” for the detail information.
4: See “8.4 Utilizing panel (LEDs and keys) by communication” for the detail information.
＊
＊
61
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E6581222
■ Monitor parameters * These parameters are read-only (monitor-only) parameters.
Communi-
Title
Function
Monitor of key data (Effective data)
Unit
Remarks
cation No.
FC00
FC01
FC90
FC91
FD00
FD01
FD06
FD07
FD42
FD49
FE00
FE01
FE02
FE03
FE04
FE05
FE06
FE07
FE08
FE09
FE10
FE11
FE12
FE13
FE14
FE15
FE16
FE18
FE20
FE21
FE22
FE26
FE27
FE29
FE30
FE35
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
See 8.4.
See 8.4.
See 8.2.
See 8.2.
Monitor of inverter keypad data
Trip code
-
-
Alarm code
-
Operation frequency (current frequency)
Inverter status (current status)
Input terminal information (current information)
Output terminal information (current information)
Inverter status2 (current status)
Inverter status3 (current status)
Operation frequency *5
Inverter status *5
0.01Hz
-
See 8.2.
See 8.3.
See 8.3.
See 8.2.
See 8.2.
-
-
-
-
0.01Hz
-
See 8.2.
Operation frequency command (actual instruction) *5
Load current
0.01Hz
0.01%
Input Voltage
Output voltage *5
Input terminal information *5
Output terminal information *5
CPU1 version
0.01%
0.01%
-
See 8.3.
See 8.3.
-
-
EEPROM version
-
-
Past trip 1
See 8.2.
See 8.2.
See 8.2.
See 8.2.
Past trip 2
-
Past trip 3
-
Past trip 4
-
Cumulative operation time
Primary frequency (compensated frequency) *5
Estimated motor operation frequency *5
Torque
Torque current *5
Excitation current *5
Analog (VIA) input frequency *5
Motor (Electronic-thermal) load factor *5
Inverter load factor *5
1H
0.01Hz
0.01Hz
0.01%
0.01%
0.01%
0.01Hz
1%
1%
Input power
Output power *5
0.01KW
0.01KW
-
-
-
Analog input value VIA
10-bit resolution (data range: 0 to 1023)
Analog input value VIB
10-bit resolution (data range: 0 to 1023)
Inverter status2
See 8.3.
See 8.3.
FE36
-
-
FE42
FE45
FE46
FE49
FE70
FE71
FE73
FE75
FE76
FE77
FE79
FE80
-
-
-
-
-
-
-
-
-
-
-
-
-
See 8.2.
See 8.2.
See 8.2.
See 8.2.
Command mode(CMOD) status
Frequency mode(FMOD) status
Inverter status3
-
-
-
Rated current
0.1A
Rated voltage
0.1V
CPU2 version
-
monitor of inverter number Hard SW
Integral Input power
-
0.01kWh
0.01kWh
-
Integral Output power
Life alarm information
See 8.2.
Cumulative power-on time
1H
*5: If a trip occurs, data immediately before its occurrence is displayed.
62
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E6581222
Appendix 1 Table of data codes
• JIS (ASCII) codes
Higher orde
0
1
2
3
4
5
6
7
Lower order
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
NUL
TC7(DLE)
DC1
(SP)
!
０
１
２
３
４
５
６
７
８
９
：
；
＜
＝
＞
？
＠
Ａ
Ｂ
Ｃ
Ｄ
Ｅ
Ｆ
Ｇ
Ｈ
Ｉ
Ｊ
Ｋ
Ｌ
Ｍ
Ｎ
Ｏ
Ｐ
Ｑ
Ｒ
Ｓ
Ｔ
Ｕ
Ｖ
Ｗ
Ｘ
Ｙ
Ｚ
［
￥
］
＾
＿
、
ａ
ｂ
ｃ
ｄ
ｅ
ｆ
ｇ
ｈ
ｉ
ｊ
ｋ
ｌ
ｍ
ｎ
ｏ
ｐ
ｑ
ｒ
ｓ
ｔ
ｕ
ｖ
ｗ
ｘ
ｙ
ｚ
｛
｜
｝
‾
TC1(SOH)
TC2(STX)
TC3(ETX)
TC4(EOT)
TC5(ENQ)
TC6(ACK)
BEL
DC2
”
＃
＄
％
＆
’
（
）
＊
＋
，
－
．
／
DC3
DC4
TC8(NAK)
TC9(SYN)
TC10(ETB)
CAN
FE0(BS)
FE1(HT)
FE2(LF)
FE3(VT)
FE4(FF)
FE5(CR)
SO
EM
SUB
ESC
IS4(FS)
IS3(GS)
IS2(RS)
IS1(US)
SI
DEL
CR: Carriage return
Ex.: Code 41 = Character A
63
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E6581222
Appendix 2 Response time
The communication response time can be calculated from data communication time and inverter
processing time. When wishing to know the communication response time, calculate using the fol-
lowing as a reference
Data processing time of inverter
Data transmission time
Data transmission time
PC → Inverter
Inverter → PC
Response time
■
Data transmission time
1
Data transmission time =
×number of bytes transmitted×number of bits
baud rate
* Number of bits = start bit + data frame length + parity bit + stop bit
* Minimum number of bits = 1 + 8 + 0 + 1 = 10 bits
* Maximum number of bits = 1 + 8 + 1 + 2 = 12 bits
<An example of the calculation of the transmission time: 19200 bps, 8 bytes, 11 bits>
1
Data transmission time =
×8×11= 4.6ms
19200
■
Data processing time of inverter
Data processing time: maximum 20ms
64
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E6581222
Appendix 3 Compatibility with the communications func-
tion of the VF-S9
To provide consistency in communications procedures, the communications function of the VF-S11
series of inverters has been designed based on the protocols used for the Toshiba VF-S9 series of
inverters. With regard to compatibility, however, VF-S9 users should check the items described be-
low before using the communications function of their inverters.
■ To VF-S9 inverter users:
Some parameters of the VF-S9 are different from those of the VF-S11 in function or adjustment
range (upper and lower limits), even though they have the same title or the same communication
number. So, when accessing a parameter, consult the VF- S9 inverter’s instruction manual to see if
the parameter is identical to the corresponding parameter of the VF-S11. If the parameter differs,
modify the computer program to suit your inverter. To avoid hazards, never copy parameters from
one model of inverter to another.
■ Comparison of communication-related items
The table below gives a comparison of communication-related items to be kept in mind when re-
placing VF-S9 inverters with VF-S11 inverters or when connecting VF-S9 inverters and VF-S11 in-
verters to the same network. It does not cover any items common to the VF-S9 and VF-S11 series of
inverters.
Model
VF-S9
VF-S11
maximum 20ms
Reference
Appendix 2
Item
Data processing time of About 8 ms
inverter
(This is only standard time, not guarantee
time.)
Notice
♦ Do not use communications programs written for another series of inverters.
Even though parameters have the same title and the same communication number, they may be different
in function. When using a parameter, always check its specifications in the instruction manual for your
inverter. If the specifications of the parameter differ, modify the computer program to suit your inverter.
♦ To avoid hazards, do not copy parameters from one model of inverter to another.
Even though parameters have the same titles and communication numbers, they may be different in
function.
65
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E6581222
Appendix 4 Troubleshooting
If a problem arises, diagnose it in accordance with the following table before making a service call. If
the problem cannot be solved by any remedy described in the table or if no remedy to the problem is
specified in the table, contact your Toshiba dealer.
Problem
Remedies
Reference
Communications will not take - Are both the computer and the inverter turned on?
place.
- Are all cables connected correctly and securely?
- Are the same baud rate, parity and bit length set for every unit on the
network?
Chapter 7
Section 4.1
Section 5.1
Chapter 9
Inverter
instruction
manual
An error code is returned.
- Is the data transmission format correct?
- Does the data written fall within the specified range?
- Some parameters cannot be written during inverter operation.
Changing should be attempted when the inverter is in halt.
The trip occurs.
- Check the cable connection and the timer setting.
Section 7.3
Chapter 6
The slave of " Inter-drive com- - Is a communication waiting time parameter on the master side set up?
munication " did an err5 trip.
Set bigger value than present value on the master's transmitting inter-
val.
Section 7.4
Frequency instructions from the - Is the frequency setting mode selection parameter set to “computer”? Section 8.1
computer have no effect.
Commands, including the run - Is the command mode selection parameter set to “computer”?
and stop commands, from the
Section 8.1
commuter have no effect.
A change to a parameter does Some communications-related parameters do not take effect until the
Chapter 7
not take effect.
inverter is reset. To make them take effect, turn the inverter off tempo-
rarily, then turn it back on.
The setting of a parameter was When using the TOSHIBA Inverter Protocol, use the W command to Section 4.2
changed, but it returns to its write data into the EEPROM. If you use the P command that writes data
original setting when the inverter into the RAMs only, the data will be cleared when the inverters are
is turned off.
reset.
66E
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