Braun E16x442 - Description of Test Interface E1691

I E16x442 Rev: 00 Page 36 of 73
6. Description of Test Interface E1691
The Test Interface E1691 processes the signals trip-line test from the PLC to the Monitors and
the trip status from the Monitors to the PLC.
The Test Interface supplies a constant test frequency to the Monitors, which use this frequency
for their self test function.
The Test Interface releases the System Warning Alarm if:
 Minimum one Monitor detects a discrepancy at its voter inputs
 Minimum one Monitor detects a failed speed signal
 Minimum one Monitor has a malfunction
 Malfunction of Test Interface
The frontside LED is steady on if the power supply of the Test Interface is ok.