Rockwell Automation 1756-HYD02 ControlLogix Hydraulic Servo Module - Manual (Page 22)

22 Publication 1756-UM525A-EN-P - June 2003
Chapter 2 Installing the 1756-HYD02 Module
Figure shows an application wiring example using a 1-axis loop with a
differential LDT input. (The power supplies and servo amplifiers are
user-supplied.)
24V Power Supply
PC with
RSLogix 5000™
Servo or
Proportional
Amplifier
Piston-type Hydraulic
Cylinder and LDT
Valve
+/– 15V dc
Power Supply
for LDTs
Earth Ground 43474
ControlLogix
controller 1756-HYD02
Drive Output
+ OUT
– OUT
CHASSIS
+INT & –INT
CHASSIS
+RET & –RET
+ – C
+ – C
IMPORTANT: This
module’s analog
output require an
external amplifier to
drive the valve.