OPERATING INSTRUCTIONS AND SPECIFICATIONS
NI 9264
16-Channel, 10 V, 16-Bit Analog Voltage Output Module
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Safety Guidelines
Operate the NI 9264 only as described in these operating
instructions.
Hot Surface This icon denotes that the component may be
hot. Touching this component may result in bodily injury.
Safety Guidelines for Hazardous Voltages
If hazardous voltages are connected to the module, take the
following precautions. A hazardous voltage is a voltage greater
than 42.4 Vpk or 60 VDC to earth ground.
Caution Ensure that hazardous voltage wiring is
performed only by qualified personnel adhering to local
electrical standards.
Caution Do not mix hazardous voltage circuits and
human-accessible circuits on the same module.
Caution Make sure that devices and circuits connected to
the module are properly insulated from human contact.
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Caution When module terminals are hazardous voltage
LIVE (>42.4 Vpk/60 VDC), you must ensure that devices
and circuits connected to the module are properly insulated
from human contact. You must use the NI 9940 connector
backshell kit to ensure that the terminals are not accessible.
Figure 1 shows the NI 9940 connector backshell.
Figure 1. NI 9940 Connector Backshell
Safety Guidelines for Hazardous Locations
The NI 9264 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
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Ex nA IIC T4 hazardous locations; and nonhazardous locations
only. Follow these guidelines if you are installing the NI 9264 in a
potentially explosive environment. Not following these guidelines
may result in serious injury or death.
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 system
in an enclosure rated to at least IP 54 as defined by
IEC 60529 and EN 60529.
Caution For Zone 2 applications, connected signals must
be within the following limit:
Capacitance..........................0.2 μF max
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Special Conditions for Hazardous Locations Use in Europe
This equipment has been evaluated as Ex nA IIC T4 equipment
under DEMKO Certificate No. 07 ATEX 0626664X. Each module
is marked
II 3G and is suitable for use in Zone 2 hazardous
locations. If you are using the NI 9264 in Gas Group IIC hazardous
locations or in ambient temperatures of –40 °C ≤ Ta ≤ 70 °C, you
must use the device in an NI chassis that has been evaluated as
EEx nC IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.
Special Conditions for Marine Applications
Some modules are Lloyd’s Register (LR) Type Approved for
marine applications. To verify Lloyd’s Register certification, visit
ni.com/certification and search for the LR certificate, or
look for the Lloyd’s Register mark on the module.
Caution To meet radio frequency emission requirements
for marine applications, use shielded cables and install
the system in a metal enclosure. Suppression ferrites
must be installed on power supply inputs near power
entries to modules and controllers. Power supply and
module cables must be separated on opposite sides of the
enclosure and must enter and exit through opposing
enclosure walls.
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Connecting the NI 9264
The NI 9264 has a 36-terminal detachable spring-terminal
connector that provides connections for 16 analog output channels.
AO0
AO1
AO2
AO3
AO4
AO5
AO6
AO7
1
2
3
4
5
6
7
8
9
19
20
21
22
23
24
25
26
27
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
COM
AO8
AO9
10 28
11 29
12 30
13 31
14 32
15 33
16 34
17 35
18 36
AO10
AO11
AO12
AO13
AO14
AO15
COM
COM
Figure 2. NI 9264 Terminal Assignments
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Each channel of the NI 9264 has a terminal to which you can
connect the positive lead of a load. Each channel also has a
common terminal, COM, and there are four additional COM
terminals at the bottom of the connector. All of the COM terminals
are internally connected to the isolated ground reference of the
module. When connecting a load to the NI 9264, connect the
positive lead of the load to the AO terminal, and the ground of the
load to a COM terminal. Refer to Figure 3 for an illustration of
connecting a load to the NI 9264.
AO
Load
COM
NI 9264
Figure 3. Connecting a Load to the NI 9264
Each channel has a digital-to-analog converter (DAC) that
produces a voltage signal. Each channel also has overvoltage
and short-circuit protection. Refer to the Specifications section
for more information about overvoltage and short-circuit
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protection. Refer to Figure 4 for an illustration of the output
circuitry for one channel of the NI 9264.
Overvoltage/
Isolated
DAC
Amp
AO
Short-Circuit
Protection
COM
NI 9264
Figure 4. Output Circuitry for One Channel of the NI 9264
When the module powers on, the channels output the startup
voltage. Refer to the Specifications section for more information
about startup voltage. Refer to the software help for information
about configuring startup output states in software.
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Connecting Wires to the NI 9264 Connector
Use a flathead screwdriver with a blade smaller than 2.3 × 1.0 mm
(0.09 × 0.04 in.) to connect wires to the detachable spring-terminal
connector. Insert the screwdriver into a spring clamp activation
slot and press a wire into the corresponding connector terminal,
then remove the screwdriver to clamp the wire into the terminal.
Refer to the Specifications section for more information about
spring-terminal wiring. Refer to Figure 5 for an illustration of
connecting wires to the NI 9264.
Figure 5. Connecting Wires to the NI 9264 Connector
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Wiring for High-Vibration Applications
If an application is subject to high vibration, National Instruments
recommends that you use the NI 9940 backshell kit to protect the
connections. Refer to Figure 1 for an illustration of the NI 9940
connector backshell.
Sleep Mode
This module supports a low-power sleep mode. Support for sleep
mode at the system level depends on the chassis that the module is
plugged into. Refer to the chassis manual for information about
support for sleep mode. If the chassis supports sleep mode, refer to
the software help for information about enabling sleep mode. Visit
ni.com/info and enter cseriesdoc for information about
C Series documentation.
Typically, when a system is in sleep mode, you cannot
communicate with the modules. In sleep mode, the system
consumes minimal power and may dissipate less heat than it does
in normal mode. Refer to the Specifications section for more
information about power consumption and thermal dissipation.
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Specifications
The following specifications are typical for the range –40 to 70 °C
unless otherwise noted. All voltages are relative to COM unless
otherwise noted.
Output Characteristics
Number of channels..........................16 analog output channels
DAC resolution .................................16 bits
Type of DAC.....................................String
Output range
Minimum.................................... 10.35 V
Typical........................................ 10.5 V
Maximum ................................... 10.65 V
Current drive..................................... 16 mA all channels max;
4 mA per channel typ
Power-on output state .......................Channels off
Startup voltage..................................0 V1
1
When the module powers on, a glitch occurs for 20 μs peaking at 500 mV.
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Power-down voltage .........................0 V1
Output impedance.............................2.0 Ω
Accuracy
Percent of
Range*
(Gain Error) (Offset Error)
Percent of
Reading
Measurement Conditions
Calibrated, max (–40 to 70 °C)
Calibrated, typ (25 °C)
0.15%
0.05%
0.6%
0.15%
0.05%
1.0%
Uncalibrated, max (–40 to 70 °C)
Uncalibrated, typ (25 °C)
* Range equals 10.5 V
0.2%
0.25%
Stability
Gain drift ....................................6 ppm/°C
Offset drift ..................................80 μV/°C
1
The power-down voltage peaks at 1.7 V, then exponentially discharges to 0 V in
200 ms. You can add a load to reduce peak voltage.
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Protection
Overvoltage ................................ 27 V at 25 °C
Short-circuit................................Indefinitely
Update time
Update Time for
cRIO-9151 R Series
Expansion Chassis
Number of
Channels
Update Time for All
Other Chassis
1
2
3.7 μs min
6.6 μs min
9.4 μs min
47 μs min
3.1 μs min
5.3 μs min
7.5 μs min
37 μs min
3
16
Noise.................................................500 μVrms
Crosstalk ...........................................90 dB
Settling time (100 pF load, to 1 LSB)
20 V step.....................................20 μs
1 V step.......................................15 μs
0.1 V step....................................13 μs
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Capacitive drive ................................1,500 pF max
Monotonicity.....................................16 bits
DNL..................................................+1 LSB max
INL (endpoint).................................. 12 LSBs max
MTBF ...............................................595,509 hours at 25 °C;
Bellcore Issue 2, Method 1,
Case 3, Limited Part Stress
Method
Note Contact NI for Bellcore MTBF specifications
at other temperatures or for MIL-HDBK-217F
specifications.
Power Requirements
Power consumption from chassis
Active mode ...............................1 W max
Sleep mode .................................25 μW max
Thermal dissipation (at 70 °C)
Active mode ...............................1 W max
Sleep mode .................................25 μW max
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Physical Characteristics
If you need to clean the module, wipe it with a dry towel.
Spring-terminal wiring......................18 to 28 AWG copper
conductor wire with 7 mm
(0.28 in.) of insulation
stripped from the end
Weight...............................................156 g (5.5 oz)
Safety
Isolation Voltages
Channel-to-channel...........................None
Channel-to-earth ground
Continuous .................................250 Vrms
,
Measurement Category II
Withstand....................................2,300 Vrms, verified by a 5 s
dielectric withstand test
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Measurement Category II is for measurements performed on
circuits directly connected to the electrical distribution system.
This category refers to local-level electrical distribution, such as
that provided by a standard wall outlet, for example, 115 V for U.S.
or 230 V for Europe.
Caution Do not connect the NI 9264 to signals or use for
measurements within Measurement Categories III or IV.
Safety Standards
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 module number or product line, and click
the appropriate link in the Certification column.
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Hazardous Locations
U.S. (UL) ..........................................Class I, Division 2,
Groups A, B, C, D, T4;
Class I, Zone 2,
AEx nA IIC T4
Canada (C-UL) .................................Class I, Division 2,
Groups A, B, C, D, T4;
Class I, Zone 2,
Ex nA IIC T4
Europe (DEMKO).............................Ex nA IIC T4
Environmental
National Instruments C Series modules are intended for indoor use
only but may be used outdoors if installed in a suitable enclosure.
Refer to the manual for the chassis you are using for more
information about meeting these specifications.
Operating temperature
(IEC 60068-2-1, IEC 60068-2-2) .....–40 to 70 °C
Storage temperature
(IEC 60068-2-1, IEC 60068-2-2) .....–40 to 85 °C
Ingress protection..............................IP 40
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Operating humidity
(IEC 60068-2-56)..............................10 to 90% RH,
noncondensing
Storage humidity
(IEC 60068-2-56)..............................5 to 95% RH,
noncondensing
Maximum altitude.............................2,000 m
Pollution Degree (IEC 60664)..........2
Shock and Vibration
To meet these specifications, you must panel mount the system and
use the NI 9940 backshell kit to protect the connections.
Operating vibration
Random (IEC 60068-2-64).........5 grms, 10 to 500 Hz
Sinusoidal (IEC 60068-2-6) .......5 g, 10 to 500 Hz
Operating shock
(IEC 60068-2-27)..............................30 g, 11 ms half sine,
50 g, 3 ms half sine,
18 shocks at 6 orientations
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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
Note For EMC compliance, operate this device with
shielded cabling.
CE Compliance
This product meets the essential requirements of applicable
European directives, as amended for CE markings, as follows:
•
•
2006/95/EC; Low-Voltage Directive (safety)
2004/108/EC; Electromagnetic Compatibility Directive
(EMC)
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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 module 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
contains the environmental regulations and directives with which
NI complies, as well as other environmental information not
included in this document.
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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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ni.com/environment/rohs_chinaDŽ
about China RoHS compliance, go to
environment/rohs_china
(For information
ni.com/
.)
Calibration
You can obtain the calibration certificate and information about
calibration services for the NI 9264 at ni.com/calibration.
Calibration interval ...........................1 year
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Where to Go for Support
The National Instruments Web site is your complete resource for
technical support. At ni.com/support you have access to
everything from troubleshooting and application development
self-help resources to email and phone assistance from
NI Application Engineers.
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 41309277, Japan 0120-527196,
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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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For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software,
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