MTS FlexTest Models 200 User Manual
Page 262

MTS FlexTest® Models 40/60/100/200 Controller Hardware
Model 494.74 Two-Station HSM Interface Board
Digital I/O and Transition Boards
262
Specifications–Model 494.74 Two-Station HSM Interface Board
Model 494.74 Specifications (part 1 of 2)
P
ARAMETER
S
PECIFICATION
HSM Outputs
Low Output
High Output
Connectors 28A and 28B (D9S))
1.0 A maximum
1.0 A maximum
HSM Command State Monitoring:
Each HSM channel monitors and compares the HSM
command state against the actual HSM Low and
High output states to help sense failed HSM relay
contacts.
If a discrepancy is encountered, +24 V power is
removed from the HSM High and Low relay contacts
for that HSM channel. In addition, the HSM controls
for that HSM channel are forced to the Off state.
Interlock Output
Relays
Voltage
Current
Connectors J3A and J3B (D15S)
30 V DC/AC maximum
1 A maximum
Normally Open Relay Contacts: Open = Interlock
Normally Closed Relay Contacts: Closed = Interlock
Interlock Inputs
Interlock Trip
Voltage
Maximum Input
Voltage
Input Resistance
Interlock Power
Output
Connectors J3A and J3B (D15S)
2 V minimum, 3 V maximum (at ~ 0.5 mA)
+26 V DC
3000
Ω
+24 V DC, current limited by a 3000-
Ω resistor