MTS FlexTest Models 200 - Manual (Page 261)

Model 494.74 Two-Station HSM Interface Board
MTS FlexTest® Models 40/60/100/200 Controller Hardware Digital I/O and Transition Boards 261
Model 494.74 Two-Station HSM Interface Board
About the Model 494.74 Two-Station HSM Interface Board
The Model 494.74 Two-Station HSM transition
board is a single-width board that plugs into the
transition card cage on a Series 494 Chassis.
AUX Power (J49)–the J49 connector provides
fused (self resetting) auxiliary power outputs
for: +5 V DC, +15 V DC, -15 V DC, and +24 V
DC.
HSM Interlocks (J3)–each station has a J3
connector that includes the following interfaces
to external equipment:
• External hardware interlock inputs
• Program (function generator) interlock
inputs
• Run/Stop Output contacts
• Interlock Output contacts
HSM Control (J28)–this connector provides
two 24-volt HSM control (Off/Low/High)
circuits. Each station has a J28 connector for the
HSM control cable.
Note The Model 494.74 Two-Station HSM
board cannot be used directly with 115
V AC HSMs. Applications that use 115
V AC HSMs require an external
converter box (such as a Model
413.08), which is used with this board.
J49 AUX PWR
J3A STA
J3B STA
J28A HSM
J28B HSM
J49 AUX PWR
Fused auxiliary DC supply
voltages for external devices.
+ 5 V DC, +15 V DC,
-15 V DC, +24 V DC
J28A/B HSM
24-volt control for each HSM
low and high pressure
solenoids
J3A/B STA
Hardware Interlock input
Program Interlock input
Interlock output contacts
Run/Stop output contacts