Output channel circuits – Rockwell Automation 1756-IF4FXOF2F ControlLogix High-speed Analog I/O Module User Manual
Page 135

Rockwell Automation Publication 1756-UM005B-EN-P - January 2013
135
Simplified Circuit Schematics
Appendix D
Output Channel Circuits
The ControlLogix high-speed analog I/O module uses two output channels
(0…1). The figure below shows the simplified schematic for each output channel.
IMPORTANT
The figure shows the circuit for output channel 0. Output channel 1 is exactly
the same with the exception that the terminals on the left side of the circuit are
labelled for each specific channel. For example, channel 1 uses V out-1 and
I out-1.
>
+ 15V
10 K
Ω
Current
Amplifier
V out-0
11 K
Ω
10
Ω
– 15V
+
–
0.047 uFd
Channel 0
14-bit
ADC
43211
+
–
0.047 uFd
+ 20V
I out-0
RTN (channel 0)
RTN (channel 1)
IMPORTANT: Channel
returns (RTN) are tied
together on the module.
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