Mts FlexTest Models 200 Manual de usuario Pagina 167

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Model 494.16 VD/DUC Mezzanine Card
MTS FlexTest® Models 40/60/100/200 Controller Hardware Mezzanine Cards
167
Three-Stage Servovalve Connections for the Model 494.16 VD/DUC Card
With a three-stage servovalve, the inner-loop LVDT uses the DUC portion of
the card while the valve driver portion provides the drive signal for a Series
252 Servovalve which controls a Series 256 or 257 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
A
B
C
D
Servovalve
JXB
2
3
+ VD1
- VD1
8
9
+ VD2
- VD2
A
B
C
D
Valve
LVDT
-
+
-
+
JXA
2
3
+ Ex
- EX
7
4
+FDBK
- FDBK
Mezzanine
Card
494.16
VD/DUC
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