National Instruments cRIO-9263 Operating Instructions Manual

OPERATING INSTRUCTIONS

CompactRIO cRIO-9263

™

4-Channel, ±10 V, 16-Bit Analog Voltage Output Module

These operating instructions describe how to use the National Instruments cRIO-9263 module. For information about installing, configuring, and programming the CompactRIO system, refer to the CompactRIO Bookshelf at Start»Program Files»National

Instruments»CompactRIO»Search the CompactRIO Bookshelf.

Safety Guidelines

Operate the cRIO-9263 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 Locations

The cRIO-9263 is suitable for use in Class I, Division 2, Groups A, B, C, and D hazardous locations; Class 1, 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 cRIO-9263 in a potentially explosive environment. Not following these guidelines may result in serious injury or death.

cRIO-9263 Operating Instructions 2 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

CompactRIO system in an enclosure rated to at least IP 54 as defined by IEC 60529 and EN 60529.

Special Conditions for Safe 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.

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 V

cRIO-9263 Operating Instructions 4 ni.com

or 60 VDC to earth ground.

peak

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 live with hazardous

voltages, make sure that the terminals are not accessible. You can use the cRIO-9932 connector kit or put the CompactRIO chassis in a suitably rated enclosure.

Wiring the cRIO-9263

The cRIO-9263 has a 10-terminal, detachable screw-terminal connector that provides connections for four analog output channels. Each channel has a terminal to which you can connect the positive lead of a voltage signal, AO. The cRIO-9263 also has common terminals, COM, that are internally connected to the isolated ground reference of the module. Refer to Table 1 for the terminal assignments for each channel.

Table 1. Terminal Assignments

Module Terminal Signal

0 AO0

1 Common (COM)

2 AO1

3 Common (COM)

4 AO2

5 Common (COM)

6 AO3

7 Common (COM)

8 No Connection

9 Common (COM)

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Connecting a Load to the cRIO-9263

You can connect loads to the cRIO-9263. Connect the positive lead of the load to the AO terminal. Connect the ground of the load to a COM terminal.

cRIO-9263

COM

Figure 1. Connecting a Load to the cRIO-9263

Load

cRIO-9263 Circuitry

The cRIO-9263 channels share a common ground that is isolated from the other modules in the CompactRIO system. Each channel has a digital-to-analog converter (DAC) that produces a voltage signal. You must write binary values to the analog output channels. Refer to the CompactRIO Bookshelf for more information about converting and calibrating cRIO-9263 output values in software.

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