FIELDPOINT™ OPERATING INSTRUCTIONS
AND SPECIFICATIONS
FP-DO-403 and cFP-DO-403
16-Channel, 5 to 30 V Sinking Digital Output Module
These operating instructions describe how to install and use the
National Instruments FP-DO-403 and cFP-DO-403 digital output
modules, referred to inclusively as the [c]FP-DO-403. For
information about configuring and accessing the [c]FP-DO-403
over a network, refer to the user manual for the FieldPoint network
module you are using.
Features
The [c]FP-DO-403 is a FieldPoint digital output module with the
following features:
•
•
•
16 sinking digital output channels
Outputs that sink 2 A per channel, 16 A2 per module
Compatible with voltages from 5 to 30 VDC
•
250 Vrms CAT II continuous channel-to-ground isolation,
verified by 2,300 Vrms, 5 s dielectric withstand test
•
•
•
–40 to 70 °C operation
ON/OFF LED indicators
Hot swappable
Installing the FP-DO-403
The FP-DO-403 mounts on a FieldPoint terminal base (FP-TB-x),
which provides operating power to the module. Installing the
FP-DO-403 onto a powered terminal base does not disrupt the
operation of the bank.
To install the FP-DO-403, refer to Figure 1 and complete the
following steps:
1. Slide the terminal base key to either position X, used for any
module, or position 6, used for the FP-DO-403 module.
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4
3
5
2
4
2
1
1
2
3
cFP I/O Module
Captive Screws
cFP Controller Module
4
5
Screw Holes
cFP Backplane
Figure 2. Installing the cFP-DO-403
Wiring the [c]FP-DO-403
The FP-TB-x terminal base has connections for each FP-DO-403
output channel and for an external supply to power field devices.
The cFP-CB-x connector block provides the same connections for
the cFP-DO-403.
Each channel has one output terminal, VOUT. The output channels
share eight VSUP terminals and eight COM terminals. All of the
channels are referenced to the COM terminals. The V and VSUP
terminals are all internally connected, as are the C and COM
terminals.
Use a 5–30 VDC external power supply for the output channels.
The power supply must provide enough current to power all of the
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loads on the output channels, up to 2 A per channel.1 Connect
the external power supply to multiple V and VSUP terminals and
to multiple C and COM terminals as needed to ensure that the
maximum current through any terminal is 2 A or less.
Install a 2 A maximum, fast-acting fuse (F2A 250V) between the
external power supply and the VSUP terminal on each channel.
Install a 2 A maximum, fast-acting fuse suitable for the load at the
VOUT terminal. Figure 3 shows fuses where appropriate.
Table 1 lists the terminal assignments for the signals associated
with each channel. Terminal assignments and wiring diagrams are
also listed on the side panel of the cFP-DO-403 and under the
slide-in card on the front of the FP-DO-403 module.
Table 1. Terminal Assignments
Terminal Numbers
Terminal Numbers
V
V
COM
V
V
COM
Channel
Channel
OUT
SUP
17
17
19
19
21
21
23
23
OUT
9
SUP
25
25
27
27
29
29
31
0
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
18
18
20
20
22
22
24
24
8
26
26
28
28
30
30
32
9
10
11
12
13
14
15
16
10
11
12
13
14
15
National Instruments recommends that you wire the external
power supply to multiple VSUP and COM terminals. Figure 3
shows how to connect two output channels to loads.
Wiring for Low-Current Applications
If your application requires 2 A or less combined current through
all channels of the [c]FP-DO-403, you can wire your application
as shown in Figure 3. Install a 2 A maximum, fast-acting fuse
(F2A 250V) between the external power supply and the V terminal
as shown.
1
Refer to the Digital Output Circuit and Specifications sections for the maximum
output current level on all channels.
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2 A Max
User-Supplied
Fuse
V
VSUP
VOUT
VOUT
5–30 VDC
External Power
Supply
+
Load
–
Load
COM
C
[c]FP-DO-403
Figure 3. Wiring for Low-Current Applications
Wiring for High-Current Applications
If your application requires more than 2 A combined current
through all channels of the [c]FP-DO-403, wire your application
as shown in Figure 4. Install a 2 A maximum, fast-acting fuse
(F2A 250V) in series with each load as shown.
2 A Max
User-Supplied
Fuse
V
2 A Max
VSUP
User-Supplied
Fuse
VOUT
Load
2 A Max
User-Supplied
5–30 VDC
External Power
Fuse
VOUT
Load
Supply
+
COM
C
–
[c]FP-DO-403
Figure 4. Wiring for High-Current Applications
© National Instruments Corp.
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[c]FP-DO-403
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Digital Output Circuit
The [c]FP-DO-403 digital output channels are optically isolated
from the rest of the FieldPoint bank. In the ON state, a transistor is
turned on between the VOUT terminal and the external supply (the
C and COM terminals). In the OFF state, this transistor is turned
off, allowing only a small leakage current to flow. The VOUT
terminal sinks current from external devices. Sinking current
means the VOUT terminal provides a path to the supply common.
Ensure that no channel sinks more than 2 A, and that the total
current supplied by all channels at any time is no more than 16 A2.
To determine whether the total current is within the limit, square
the current on each channel and add the squares together. If the sum
of all the squares is less than or equal to 16 A2, the total current is
within the limit. In the following example, three channels sink 2 A
and four channels sink 1 A each:
(2 A)2 + (2 A)2 + (2 A)2 + (1 A)2
+ (1 A)2 + (1 A)2 + (1 A)2 ≤ 16 A2
Caution The outputs must not be short-circuited to the
potential of the V or VSUP terminals (the positive voltage
of the external supply). Short circuits damage the
[c]FP-DO-403 output channels. Check all wiring
carefully before applying power.
In the ON state, there is an effective resistance of 0.12 Ω between
the output (VOUT) and the supply voltage (the C and COM
terminals). This resistance causes a voltage drop between the
external supply voltage and the output voltage. For example,
if the external supply voltage is 5 V and the output current is 1 A,
the output voltage is 4.88 V:
5 V – 1 A × 0.12 Ω = 4.88 V
Protection for Inductive Loads
When an inductive load, such as a motor or relay, is connected to
an output, a large counter-electromotive force may occur at
switching time because of the energy stored in the inductive load.
This flyback voltage can damage the outputs and the power supply.
It is best to limit such flyback voltages at the inductive load by
installing a flyback diode across the load. Typically, you should
[c]FP-DO-403
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mount the flyback diode within 18 in. of the load. Figure 5 shows
a flyback diode connected to an inductive load.
V or VSUP
VOUT
Load
Flyback Diode
Figure 5. Connection to Inductive Load with Flyback Diode
Although the [c]FP-DO-403 contains flyback diodes to prevent
excessively high voltage from damaging the module, National
Instruments recommends the use of an external protection circuit
across any inductive load.
Status Indicators
The [c]FP-DO-403 has two green status LEDs, POWER and
READY. After you insert the FP-DO-403 into a terminal base
or the cFP-DO-403 into a backplane and apply power to the
connected network module, the green POWER indicator lights
and the [c]FP-DO-403 informs the network module of its presence.
When the network module recognizes the [c]FP-DO-403, it sends
initial configuration information to the [c]FP-DO-403. After the
module receives this initial information, the green READY
indicator lights and the [c]FP-DO-403 is in normal operating
mode.
In addition to the green POWER and READY indicators, each
channel has a numbered, green output state indicator, which lights
when the channel is in the ON state.
Isolation and Safety Guidelines
Caution Read the following information before
attempting to connect the [c]FP-DO-403 to any circuits
that may contain hazardous voltages.
This section describes the isolation of the [c]FP-DO-403 and its
compliance with international safety standards. The field wiring
connections are isolated from the backplane and the inter-module
communication bus. The isolation barriers in the module provide
© National Instruments Corp.
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[c]FP-DO-403
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250 Vrms Measurement Category II continuous isolation, verified
by 2,300 Vrms, 5 s dielectric withstand test. The [c]FP-DO-403
provides double insulation (compliant with IEC 61010-1) for
working voltages of 250 Vrms1. Safety standards (such as those
published by UL and IEC) require the use of double insulation
between hazardous voltages and any human-accessible parts or
circuits.
Never try to use any isolation product between human-accessible
parts (such as DIN rails or monitoring stations) and circuits that
can be at hazardous potentials under normal conditions, unless the
product is specifically designed for such an application, as is the
[c]FP-DO-403.
Even though the [c]FP-DO-403 is designed to handle applications
with hazardous potentials, follow these guidelines to ensure a safe
total system:
•
There is no isolation between channels on the [c]FP-DO-403.
If a hazardous voltage is present on any channel, all channels
are considered hazardous. Make sure that all other devices and
circuits connected to the module are properly insulated from
human contact.
•
•
Do not share the external supply voltages (the V and C
terminals) with other devices (including other FieldPoint
devices), unless those devices are isolated from human contact.
For Compact FieldPoint, you must connect the protective earth
(PE) ground terminal on the cFP-BP-x backplane to the system
safety ground. The backplane PE ground terminal has the
following symbol stamped beside it: . Connect the
backplane PE ground terminal to the system safety ground
using 14 AWG (1.6 mm) wire with a ring lug. Use the 5/16 in.
panhead screw shipped with the backplane to secure the ring
lug to the backplane PE ground terminal.
•
As with any hazardous voltage wiring, make sure that all
wiring and connections meet applicable electrical codes and
commonsense practices. Mount terminal bases and backplanes
in an area, position, or cabinet that prevents accidental or
unauthorized access to wiring that carries hazardous voltages.
1
Working voltage is defined as the signal voltage plus the common-mode voltage.
Common-mode voltage is the voltage of the module with respect to ground.
[c]FP-DO-403
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•
•
Do not use the [c]FP-DO-403 as the only isolating barrier
between human contact and working voltages higher than
250 Vrms
.
Operate the [c]FP-DO-403 only at or below Pollution
Degree 2. Pollution Degree 2 means that only nonconductive
pollution occurs in most cases. Occasionally, however, a
temporary conductivity caused by condensation must be
expected.
•
Operate the [c]FP-DO-403 at or below Measurement
Category II. Measurement Category II is for measurements
performed on circuits directly connected to the low-voltage
installation. This category refers to local-level distribution,
such as that provided by a standard wall outlet.
Safety Guidelines for Hazardous Locations
The [c]FP-DO-403 is suitable for use in Class I, Division 2, Groups
A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC
T4 and Ex nA IIC T4 hazardous locations; and nonhazardous
locations only. Follow these guidelines if you are installing the
[c]FP-DO-403 in a potentially explosive environment. Failing to
follow these guidelines may result in serious injury or death.
Caution Make sure that all products you use in hazardous
locations are certified for such use. Refer to the product
label or visit ni.com/certification, search by model
number or product line, and click the appropriate link in
the Certification column.
Caution Do not disconnect I/O-side wires or connectors
unless power has been switched off or the area is known
to be nonhazardous.
Caution Do not remove modules unless power has been
switched off or the area is known to be nonhazardous.
Caution Substitution of components may impair
suitability for Class I, Division 2.
Caution For Zone 2 applications, install the FieldPoint
system in an enclosure rated to at least IP 54 as defined
by IEC 60529 and EN 60529.
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Caution For Zone 2 applications, install a protection
device across the external power supply and the COM
terminal. The device must prevent the external power
supply voltage from exceeding 42 V if there is a transient
overvoltage condition.
Special Conditions for Hazardous Locations Use in Europe
The [c]FP-DO-403 has been evaluated as EEx nC IIC T4
equipment under DEMKO Certificate No. 03 ATEX 0251502X.
Each module is marked
hazardous locations.
II 3G and is suitable for use in Zone 2
Specifications
These specifications are typical for –40 to 70 °C unless otherwise
noted. Specifications are subject to change without notice.
Output Characteristics
Number of channels..........................16
Output type .......................................Sinking
Voltage range ....................................5 to 30 VDC
Output impedance.............................0.12 Ω
(0.12 V drop at 1 A)
Maximum current
Per channel .................................2 A
All channels
FP-DO-403...........................16 A2
cFP-DO-403.........................16 A2 at –40 to 60 °C
12 A2 at 60 to 70 °C
Maximum OFF state leakage............50 μA
Output delay time .............................50 μs
Physical Characteristics
Indicators ..........................................Green POWER and
READY indicators, 16 green
output state indicators
Weight
FP-DO-403.................................140 g (4.8 oz)
cFP-DO-403 ...............................110 g (3.7 oz)
[c]FP-DO-403
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Power Requirements
Power from network module ............600 mW
Safety Isolation Voltage
Isolation voltage is verified by a dielectric withstand test.
Channel to ground
Continuous .................................250 Vrms, Measurement
Category II
Dielectric withstand....................2,300 Vrms, 5 s
Channel to channel ...........................None
Environmental
FieldPoint modules are intended for indoor use only. For outdoor
use, they must be mounted inside a sealed enclosure.
Operating temperature
Input voltage ≤25 V....................–40 to 70 °C
Input voltage ≤30 V....................–40 to 50 °C
Storage temperature..........................–45 to 85 °C
Humidity...........................................10 to 90% RH,
noncondensing
Maximum altitude.............................2,000 m; at higher altitudes,
the isolation voltage ratings
must be lowered
Pollution Degree ...............................2
Shock and Vibration
These specifications apply only to the cFP-DO-403. NI
recommends Compact FieldPoint if your application is
subject to shock and vibration.
Operating vibration, random
(IEC 60068-2-64)..............................10–500 Hz, 5 grms
Operating vibration, sinusoidal
(IEC 60068-2-6)................................10–500 Hz, 5 g
Operating shock
(IEC 60068-2-27)..............................50 g, 3 ms half sine,
18 shocks at 6 orientations;
30 g, 11 ms half sine,
18 shocks at 6 orientations
© National Instruments Corp.
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Safety
This product is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement,
control, and laboratory use:
•
•
IEC 61010-1, EN-61010-1
UL 61010-1, CSA 61010-1
Note For UL and other safety certifications, refer to the
product label or visit ni.com/certification, search
by model number or product line, and click the
appropriate link in the Certification column.
Electromagnetic Compatibility
This product is designed to meet the requirements of the following
standards of EMC for electrical equipment for measurement,
control, and laboratory use:
•
•
•
EN 61326 EMC requirements; Industrial Immunity
EN 55011 Emissions; Group 1, Class A
CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A
CE Compliance
This product meets the essential requirements of applicable
European Directives, as amended for CE marking, as follows:
•
•
2006/95/EC; Low-Voltage Directive (safety)
2004/108/EC; Electromagnetic Compatibility Directive (EMC)
Note Refer to the Declaration of Conformity (DoC) for
this product for any additional regulatory compliance
information. To obtain the DoC for this product, visit
ni.com/certification, search by model number or
product line, and click the appropriate link in the
Certification column.
Environmental Management
National Instruments is committed to designing and manufacturing
products in an environmentally responsible manner. NI recognizes
that eliminating certain hazardous substances from our products is
beneficial not only to the environment but also to NI customers.
For additional environmental information, refer to the NI and the
Environment Web page at ni.com/environment. This page
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contains the environmental regulations and directives with which
NI complies, as well as other environmental information not
included in this document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of their life cycle, all products
must be sent to a WEEE recycling center. For more
information about WEEE recycling centers and
National Instruments WEEE initiatives, visit ni.com/
environment/weee.htm.
˅
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about China RoHS compliance, go to
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Mechanical Dimensions
Figure 6 shows the mechanical dimensions of the FP-DO-403
installed on a terminal base. Dimensions are given in millimeters
[inches]. If you are using the cFP-DO-403, refer to the Compact
FieldPoint controller user manual for the dimensions and cabling
clearance requirements of the Compact FieldPoint system.
107.19
[4.22]
109.5
[4.31]
91.44
[3.60]
Figure 6. FP-DO-403 Mechanical Dimensions
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Where to Go for Support
For more information about setting up the FieldPoint system, refer
to these National Instruments documents:
•
•
•
FieldPoint network module user manual
Other FieldPoint I/O module operating instructions
FieldPoint terminal base and connector block operating
instructions
Go to ni.com/support for the most current manuals, examples,
and troubleshooting information.
National Instruments corporate headquarters is located at 11500
North Mopac Expressway, Austin, Texas, 78759-3504. National
Instruments also has offices located around the world to help
address your support needs. For telephone support in the United
States, create your service request at ni.com/support and follow
the calling instructions or dial 512 795 8248. For telephone support
outside the United States, contact your local branch office:
Australia 1800 300 800, Austria 43 662 457990-0,
Belgium 32 (0) 2 757 0020, Brazil 55 11 3262 3599,
Canada 800 433 3488, China 86 21 5050 9800,
Czech Republic 420 224 235 774, Denmark 45 45 76 26 00,
Finland 358 (0) 9 725 72511, France 01 57 66 24 24,
Germany 49 89 7413130, India 91 80 41190000,
Israel 972 3 6393737, Italy 39 02 413091, Japan 81 3 5472 2970,
Korea 82 02 3451 3400, Lebanon 961 (0) 1 33 28 28,
Malaysia 1800 887710, Mexico 01 800 010 0793,
Netherlands 31 (0) 348 433 466, New Zealand 0800 553 322,
Norway 47 (0) 66 90 76 60, Poland 48 22 3390150,
Portugal 351 210 311 210, Russia 7 495 783 6851,
Singapore 1800 226 5886, Slovenia 386 3 425 42 00,
South Africa 27 0 11 805 8197, Spain 34 91 640 0085,
Sweden 46 (0) 8 587 895 00, Switzerland 41 56 2005151,
Taiwan 886 02 2377 2222, Thailand 662 278 6777,
Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545
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