Model 494.79 8-channel valve driver board, Model 494.79 8-channel valve driver board 271, Transition card cage vme card cage – MTS FlexTest Models 200 User Manual
Page 271
Model 494.79 8-Channel Valve Driver Board
MTS FlexTest® Models 40/60/100/200 Controller Hardware
Digital I/O and Transition Boards
271
Model 494.79 8-Channel Valve Driver Board
About the Model 494.79 8-Channel Valve Driver Board
The Model 494.79 8-Channel Valve Driver is a transition board that contains
eight separate valve drivers. Each valve driver requires an external valve-
drive signal. Valve drive signals are typically provided by a Model 494.46 8-
Output D/A mezzanine card.
The valve-drive signals from the D/A card are routed to the valve driver
board through two cables that run from the I/O carrier board to the valve
driver board.
Improper operation can damage valve driver cards.
Damage can occur if you connect a high-level signal to a valve driver
card when the chassis power is off.
Do not apply a high-level signal to a valve driver card when the chassis power
is off. Disconnect power from any externally powered devices before you
switch the chassis power off.
CAUTION
1
2
3
4
5
6
7
8
Model 494.79
8-Channel
Valve Driver
Model 494.40 I/O Carrier Board
Transition
Card Cage
VME Card Cage
Valve 1
Valve 2
J1A
J1B
J2A
J2B
J3A
J3B
J4A
J4B
494.79
8 CHANNEL
UNVERSAL
DRIVER
INPUT 1-4
INPUT 5-8
J
1
1
J
1
2
OUTPUT
J
9
J
1
0
OUTPUT
J
7
J
8
OUTPUT
J
5
J
6
OUTPUT
J
3
J
4
Valve 3
Valve 4
Valve 6
Valve 5
Valve 8
Valve 7
494.46 8-Output
D/A Converter
Mezzanine Card
1-4
5-8