Allen-Bradley 1794-IE8 Series B User Manual

Specifications A–3
Publication 17946.5.2 - May 1996
Specifications - 1794OE4/B Analog Output Module
Number of Outputs 4 singleended, nonisolated
Module Location Cat. No. 1794TB2, TB3 Terminal Base Unit
Resolution
Voltage
Current
12 bits plus sign
2.56mV/cnt
5.13µA/cnt
Data Format left justified 16bit 2's complement
Conversion Type Pulse Width Modulation
Conversion Rate 1.024ms maximum all channels
Output Current Terminal 0mA output until module is configured
420mA user configurable
020mA user configurable
Output Voltage Terminal
0V output until module is configured
±10V user configurable
0-10V user configurable
Step Response to 63% of FS 24ms
Current Load on Voltage Output 3mA maximum
Resistive Load on mA Output 15  750 ohms
Absolute Accuracy
Voltage Terminal
Current Terminal
0.133% Full Scale @ 25
o
C
0.425% Full Scale @ 25
o
C
Accuracy Drift with Temperature
Voltage Terminal
Current Terminal
0.0045% Full Scale/
o
C
0.0069% Full Scale/
o
C
Calibration None Required
Isolation Voltage Tested at 850V dc for 1s between user and system
No isolation between individual channels
Indicators 1 green power indicator
Flexbus Current 20mA
Power Dissipation 4.5W maximum @ 31.2V dc
Thermal Dissipation Maximum 15.3 BTU/hr @ 31.2V dc
Keyswitch Position 4
Specifications continued on next page.

Allen-Bradley 1794-IE8 Series B Specifications

General

Brand	Allen-Bradley
Model	1794-IE8 Series B
Category	Control Unit
Language	English