MTS 793 Controller Hardware
FlexTest GT Controller Connections
155
Multi-Box I/O Module
The optional Model 493.43 Multi-Box I/O module allows multiple
controllers to share a master hardware synchronization clock and pass
station interlock state information between each other. In addition, this
front panel module also provides user station interlock inputs and
outputs.
Module features
•
4 optically isolated station interlock inputs (J8)
•
4 station interlock outputs with relay contacts (J9)
•
Box In (J51) and Box Out (J52) to connect multiple MTS controller
boxes to share station interlock status and the master
synchronization clock.
•
32 Mb FLASH disk on board
•
Box address switch (software readable) allows you to set a unique
address for each controller in a multi-box chain.
J8 Interlock IN
Connector
J8 Interlock IN
provides four station interlock inputs that
can be connected to external interlock chains.
•
Inputs 1 through 4 are dedicated as a station interlock.
•
All inputs are optically isolated.
Electrical
specifications
Refer to the following table for input electrical specifications:
P
ARAMETER
S
PECIFICATION
Input Type
Contact (Open = Interlock)
Logic (0 = Interlock)
Input Debounce Time
12-16 msec
Input Resistance
2.7 k
Ω
Minimum Input Off Voltage
0.8 V (Interlock)
Maximum Input Voltage
26 V
Minimum Input On Voltage
3 V @ 1 mA (No Interlock)
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