Rockwell Automation 999 IMC S Class Compact Motion Controller (Cat. No. 4100-999-122) - Manual (Page 66)

4-24 Installation and Hookup
Publication 999-122 - January 1997
Connecting Hydraulic Valves
The IMC-S/23x can also be used with any commercially available
hydraulic servo or proportional valve that accepts a ±150 mA analog
input signal. Each axis of the IMC-S/23x may be individually
configured to provide either a ±10V (voltage) or ±150 mA (current)
servo output signal as explained in Select the Servo Output Format
earlier in this section. For hydraulic valves, ensure that the appropriate
axes are set for current output. Each axis must be connected to its own
valve.
Connect each hydraulic valve to the IMC-S/23x using the same
4100-CCSxxF pre-engineered cable assembly as used for that axis’
encoder, as shown below.
For full ±150 mA current output from the IMC-S/23x, the impedance
of the servo valve motor coil must be less than 56 W .
!
ATTENTION: Set the servo output format switches
for Current before connecting hydraulic valves.