Specifications

Analog Output Modules
252
31007715 6/2008
The analog returns (pin 4) for each channel are internally connected—therefore
there is no channel-to-channel isolation.
Sample
Wiring Diagrams
The following field wiring example shows how two isolated analog actuators can be
wired to the STB AVO 1250 module. An external power supply is required to power
the actuators:
3 outputs to actuator 1 (top) and actuator 2 (bottom)
4 field power returns from actuator 1 (top) and actuator 2 (bottom)
2 no connection no connection
3 output to actuator 1 output to actuator 2
4 output channel return output channel return
5 no connection no connection
6 field power return (to the module) field power return (to the module)
Pin Top Connections Bottom Connections
3
4
3
4
U
+
-
U
+
-
-
+
PE
PE
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