National Instruments CompactRIO cRIO-9263 User manual

OPERATING INSTRUCTIONS
CompactRIO cRIO-9263
4-Channel, ±10 V, 16-Bit Analog Voltage Output Module
™

cRIO-9263 Operating Instructions 2 ni.com
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.

© National Instruments Corp. 3 cRIO-9263 Operating Instructions
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.

cRIO-9263 Operating Instructions 4 ni.com
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 Vpeak 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 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.

© National Instruments Corp. 5 cRIO-9263 Operating Instructions
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.

cRIO-9263 Operating Instructions 6 ni.com
Table 1. Terminal Assignments
Module Terminal Signal
0AO0
1Common (COM)
2AO1
3Common (COM)
4AO2
5Common (COM)
6AO3
7Common (COM)
8No Connection
9Common (COM)
0
1
2
3
4
5
6
7
8
9

© National Instruments Corp. 7 cRIO-9263 Operating Instructions
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.
Figure 1. Connecting a Load to the cRIO-9263
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.
cRIO-9263
COM
AO
Load

cRIO-9263 Operating Instructions 8 ni.com
Each channel also has overvoltage and short-circuit protection.
For more information about the overvoltage and short-circuit
protection, refer to the Specifications section.
Figure 2. Output Circuitry for One Channel
When the module powers on, the output channel drives the
power-on voltage. Refer to the Specifications section for more
information about power-on voltage. Refer to the CompactRIO
Bookshelf for more information about configuring initial output
values in software.
AO
COM
cRIO-9263
Amplifier
Isolated DAC
Overvoltage/
Short-Circuit
Protection

© National Instruments Corp. 9 cRIO-9263 Operating Instructions
Sleep Mode
You can enable sleep mode for the CompactRIO system in
software. Typically, when a system is in sleep mode, you cannot
communicate with the modules. In sleep mode, the system
minimizes power consumption. The system thermal dissipation
may decrease. Refer to the Specifications section for more
information about power consumption and thermal dissipation.
Refer to the CompactRIO Bookshelf for more information about
enabling sleep mode in software.
Specifications
The following specifications are typical for the range –40 to 70 °C
unless otherwise noted.
Output Characteristics
Number of channels .......................... 4 analog output channels
DAC resolution ................................. 16 bits
Type of DAC ..................................... String

cRIO-9263 Operating Instructions 10 ni.com
Operating voltage
Nominal...................................... ±10.7 V
Minimum.................................... ±10.3 V
Maximum ................................... ±11 V
Current drive ..................................... ±1 mA per channel min
Output impedance............................. 0.1 Ω
Accuracy
Stability
Offset drift .................................. 80 µV/°C
Gain drift .................................... 6 ppm/°C
Error
Percentage of
Reading
Percent of
Range*
Calibrated, max (–40 to 70 °C) 0.35% 0.75%
Calibrated, typ (25 °C, ±5°C) 0.01% 0.1%
Uncalibrated, max (–40 to 70 °C) 2.2% 1.7%
Uncalibrated, typ (25 °C, ±5°C) 0.3% 0.25%
* Range equals ±10.7 V