MTS FlexTest Models 200 - Manual (Page 166)

MTS FlexTest® Models 40/60/100/200 Controller Hardware
Model 494.16 VD/DUC Mezzanine Card
Mezzanine Cards 166
Two-Stage Servovalve Connections for the Model 494.16 VD/DUC Card
With a two-stage servovalve, you can use the DUC portion of the card to
provide control feedback for a channel while the valve driver provides the
drive signal for the servovalve.
Single two-stage valve
Dual two-stage valve
A
B
C
D
Servovalve
Cable Grounding
1 The cable shield
connects to the metal
shielding on the RJ-50
cable plug.
2 The cable plug shielding
connects to the I/O carrier
board body.
3 The I/O carrier board
connects to earth ground
through the chassis.
I/O Carrier Board
Front-Panel
RJ-50 Connector
JXB
2
3
+ VD1
- VD1 Mezzanine
Card
494.16
VD/DUC
8
9
+ VD2
- VD2
A
B
C
D
Servovalve
D
C
B
A
Servovalve
I/O Carrier Board
Front-Panel
RJ-50 Connector
JXB
2
3
+ VD1
- VD1 Mezzanine
Card
494.16
VD/DUC
8
9
+ VD2
- VD2
Cable Grounding
1 The cable shield
connects to the metal
shielding on the RJ-50
cable plug.
2 The cable plug shielding
connects to the I/O carrier
board body.
3 The I/O carrier board
connects to earth ground
through the chassis.