National Instruments NI 9265 User Manual

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OPERATING INSTRUCTIONS AND SPECIFICATIONS

NI 9265

4-Channel, 0–20 mA, 16-Bit Analog Current Output Module

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This document describes how to use the National Instruments 9265 and includes specifications and terminal assignments for the NI 9265. Visit ni.com/info and enter rdsoftwareversion to determine which software you need for the modules you are using. For information about installing, configuring, and programming the system, refer to the system documentation. Visit and enter

cseriesdoc for information about C Series

ni.com/info

documentation.

Note The safety guidelines and specifications in this

document are specific to the NI 9265. The other components in the system might not meet the same safety ratings and specifications. Refer to the documentation for each component in the system to determine the safety ratings and specifications for the entire system. Visit

ni.com/info and enter cseriesdoc for information

about C Series documentation.

Safety Guidelines

Operate the NI 9265 only as described in these operating instructions.

NI 9265 Operating Instructions and Specifications 2 ni.com

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.

Caution When module terminals are hazardous voltage

LIVE (>42.4 V

/60 VDC), you must ensure that devices

and circuits connected to the module are properly insulated from human contact. You must use the NI 9932 connector backshell kit to ensure that the terminals are not accessible.

Figure 1 shows the NI 9932 connector backshell.

Figure 1. NI 9932 Connector Backshell

Safety Guidelines for Hazardous Locations

The NI 9265 is suitable for use in Class I, Division 2, Groups A, B, C, D, T 4 ha zar dous locations; Class I, Zone 2, AEx nC IIC T4, and Ex nC IIC T4 hazardous locations; and nonhazardous locations only. Follow these guidelines if you are installing the NI 9265 in a potentially explosive environment. Not following these guidelines may result in serious injury or death.

NI 9265 Operating Instructions and Specifications 4 ni.com

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 limits:

Capacitance .......................... 80 nF max

Inductance ............................ 0.2 H max

Special Conditions for Hazardous Locations Use in Europe

This equipment has been evaluated as EEx nC IIC T4 equipment under DEMKO Certificate No. 03 ATEX 0324020X. Each module

is marked II 3G and is suitable for use in Zone 2 hazardous locations. If you are using the NI 9265 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.

NI 9265 Operating Instructions and Specifications 6 ni.com

Connecting the NI 9265

The NI 9265 has a 10-terminal, detachable screw-terminal connector that provides connections for 4 analog output channels.

AO0 COM0 AO1 COM1 AO2 COM2 AO3 COM3 Vsup Power Supply COM

0 1 2 3 4 5 6 7 8 9

Figure 2. NI 9265 Terminal Assignments

The NI 9265 has four analog output channels, AO. Each channel has a common terminal, COM, that is internally connected to the isolated ground reference of the module. The 9265 also has a terminal for an external power supply, V

, and an external power

sup

supply common terminal, Power Supply COM.

Each AO channel has a digital-to-analog converter (DAC) that produces a current signal. Each channel also has overvoltage and short-circuit protection. Refer to the Specifications section for more information about the overvoltage and short-circuit protection. Refer to Figure 3 for an illustration of the output circuitry for one channel of the NI 9265.

Yo u can connect a load to each channel of the NI 9265. Connect the positive lead of the load to the AO terminal. Connect the ground of the load to the corresponding COM terminal. Refer to Figure 3 for an illustration of how to connect a load to the NI 9265.

NI 9265 Operating Instructions and Specifications 8 ni.com

External

Power Supply

Powe r

Supply

COM

NI 9265

Vsup

DC/DC

Isolated DAC

Protection

Load

COM

Figure 3. Connecting a Load to the NI 9265

Yo u must use 2-wire ferrules to create a secure

Note

connection when connecting more than one wire to a single terminal on the NI 9265.

Yo u must connect an external power supply to the NI 9265. This power supply provides the current for the devices you connect to the module. Connect the positive lead of the power supply to the supply terminal, V

, and the negative lead of the power supply to

sup

Power Supply COM.

When the module powers on, the channels output the startup current. Refer to the Specifications section for more information about startup current. Refer to the software help for information about configuring startup output states in software. Visit

ni.com/info and enter cseriesdoc for information about

C Series documentation.

Wiring for High-Vibration Applications

If an application is subject to high vibration, National Instruments recommends that you either use ferrules to terminate wires to the detachable screw-terminal connector or use the NI 9932 backshell kit to protect the connections. Refer to Figure 4 for an illustration of using ferrules. Refer to Figure 1 for an illustration of the NI 9932 connector backshell.

NI 9265 Operating Instructions and Specifications 10 ni.com

Figure 4. 10-Terminal Detachable Screw-Terminal Connector with Ferrule

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.

Vis it 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.

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.......................... 4 analog output channels

DAC resolution ................................. 16 bits

Type of DAC..................................... String

Power-on output state ....................... 0

Startup current .................................. 0.0 mA

Power-down current.......................... 0.0 mA

NI 9265 Operating Instructions and Specifications 12 ni.com

Full-scale output current

Minimum.................................... 20.1 mA

Typical ........................................ 20.6 mA

Maximum ................................... 21.0 mA

Output range ..................................... 0 to 20 mA

Compliance voltage .......................... 12 VDC max

Maximum load.................................. 600 Ω

Accuracy

Percent of

Reading

Measurement Conditions

Calibrated, typ (25 °C, ±5 °C) 0.11% 0.19%

Calibrated, max (–40 to 70 °C) 0.25% 0.4%

Uncalibrated, typ (25 °C, ±5 °C) 0.35% 1.4%

Uncalibrated, max (–40 to 70 °C) 0.85% 2.5%

Range equals 0 to 20.6 mA

(Gain Error)

Percent of

Range

(Offset Error)

Stability

Gain drift .................................... 30 ppm/°C

Offset drift .................................. 45 ppm/°C

External power supply voltage range (V

Protection (AO, V

) ..........................9–36 VDC

sup

)

sup

Overvoltage ................................ ±40 V

Short-circuit................................ Indefinitely

Update time

Number of

Channels

One 3.5 μs 3 μs

Two 6.5 μs 5 μs

Three 9 μs 7.5 μs

Four 12 μs 9.5 μs

Update Time for R Series

Expansion Chassis

Update Time for

Any Other Chassis

Noise................................................. 600 nA

rms

Crosstalk ........................................... –90 dB

NI 9265 Operating Instructions and Specifications 14 ni.com

Settling time (to 1 LSB)

Full-scale step............................. 10 μs

1 mA step ................................... 5 μs

Glitch energy .................................... Unmeasurable

Monotonicity..................................... 16 bits

DNL .................................................. 1 LSB max

INL.................................................... ±16 LSB

MTBF ............................................... 1,014,487 hours at 25 °C;

Bellcore Issue 6, 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 ...............................230 mW max

Sleep mode ................................. 25 μW max

Thermal dissipation (at 70 °C)

Active mode ............................... 1.5 W max

Sleep mode ................................. 10 mW max

Power consumption from external power supply

Active mode ............................... 1.4 W max

Sleep mode ................................. 10 mW

Physical Characteristics

If you need to clean the module, wipe it with a dry towel.

Screw-terminal wiring ...................... 12 to 24 AWG copper

Ferrules ............................................. 0.25 mm2 to 2.5 mm

Torque for screw terminals ............... 0.5 to 0.6 N · m

Weight............................................... 136 g (4.8 oz)

NI 9265 Operating Instructions and Specifications 16 ni.com

conductor wire with 10 mm (0.39 in.) of insulation stripped from the end

(4.4 to 5.3 lb · in.)

Safety

Maximum Voltage

Connect only voltages that are within the following limits.

Channel-to-COM or V

Isolation Voltages

Channel-to-channel........................... No isolation between

Channel-to-earth ground, V or COM-to-earth ground

Continuous ................................. 250 V

Withstand.................................... 2,300 V

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

The maximum voltage that can be applied between any channel or V and a COM terminal without damaging the module or other devices.

-to-COM ... ±40 V max

sup

-to-earth ground,

sup

channels

rms

Measurement Category II

, verified by a 5 s

rms

dielectric withstand test

terminal

sup

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 9265 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 modu le number or product line, and click the appropriate link in the Certification column.

Hazardous Locations

U.S. (UL) .......................................... Class I, Division 2,

NI 9265 Operating Instructions and Specifications 18 ni.com

Groups A, B, C, D, T4; Class I, Zone 2, AEx nC IIC T4

Canada (C-UL) ................................. Class I, Division 2,

Groups A, B, C, D, T4; Class I, Zone 2, Ex nC IIC T4

Europe (DEMKO)............................. EEx nC 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

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 either affix ferrules to the ends of the terminal wires or use the NI 9932 backshell kit to protect the connections.

Operating vibration

Random (IEC 60068-2-64)......... 5 g

Sinusoidal (IEC 60068-2-6) .......5 g, 10 to 500 Hz

Operating shock

(IEC 60068-2-27).............................. 30 g, 11 ms half sine,

NI 9265 Operating Instructions and Specifications 20 ni.com

, 10 to 500 Hz

rms

50 g, 3 ms half sine, 18 shocks at 6 orientations

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)

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 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

environment/weee.htm

NI 9265 Operating Instructions and Specifications 22 ni.com

ni.com/environment. This page

ni.com/

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ni.com/environment/rohs_china

about China RoHS compliance, go to

environment/rohs_china

Calibration

Yo u can obtain the calibration certificate and information about calibration services for the NI 9265 at

Calibration interval ........................... 1 year

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ni.com/

ni.com/calibration.

Where to Go for Support

The National Instruments Web site is your complete resource for technical support. At 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 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,

NI 9265 Operating Instructions and Specifications 24 ni.com

ni.com/support you have access to

ni.com/support

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

National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software,

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