TS 910 TRANSFER SWITCH
PM140 REV 2 14/01/23 39 Thomson Power Systems
• ‘On Gen’ LED Flashes: the “On Gen’ LED will begin flashing to
indicate that the generator limit switch is not operating correctly.
The LED will flash until the alarm condition is reset.
• ‘Alarm’ LED Activated: the ‘alarm’ LED’ will be activated. The
LED will not go out until the alarm condition is reset.
• Alarm Output Signal Activated: the output signal on customer
terminals #5 & #6 will be activated. The alarm output signal will
be terminated once the alarm condition is reset.
18.8.1.3 Gen Fail to Perform an Exercise Operation:
Should the generator fail to perform an automatic exercise mode (i.e. fail to
start or fail on load), an alarm condition will be activated after a 60 second
delay. This alarm condition will cause the following events to occur:
• ‘Exercise’ LED Flashes: the “Exercise LED will begin flashing to
indicate that the generator has not performed an ‘Exercise mode
correctly. The LED will flash until the alarm condition is reset.
• ‘Alarm’ LED Activated: the ‘alarm’ LED’ will be activated. The
LED will not go out until the alarm condition is reset.
• Alarm Output Signal Activated: the output signal on customer
terminals #5 & #6 will be activated. The alarm output signal will
be terminated once the alarm condition is reset.
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