MTS Series 256 Servovalve - Manual (Page 26)

Series 256 Servovalve Product Information 26 Installation
10. Apply high pressure and check for leaks at the servovalve hydraulic
connections and at the base of the servovalve.
How to Connect the Cables
The following figures show the pilot stage internal coils and connector wiring
and the three cable wiring variations that can be used. (The main stage LVDT
internal coils and connector wiring.)
Pilot Stage Coils and Connector
LVDT Coils and Connector
25 mA
Series
A
B
C
D
Differential
50 mA/0 mA
0 mA/50 mA
A
B
C
D
Coils
Connector
A
B
C
D
80W
80W
A
B C
D
backshell
7
9
11
12
13
Drain
+Valve Command 1
- Valve Command 1
+Valve Command 2
- Valve Command 2
MTS Controller
Single
Servovalve
A
B
C
D
Parallel
50 mA Total
A
B
C
D
Output
-FB
-EX
A
B
D
C
Excitation
+FB
+EX
Note C and D leads may be reversed
for proper phasing.