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:
PARAMETER SPECIFICATION
Input Type Contact (Open = Interlock)
Logic (0 = Interlock)
Input Debounce Time 12-16 msec
Input Resistance 2.7 kΩ
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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