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4.2.8 Testing
The sub-menu "Test" provides such functions as disabling the automatic monitoring function and
forced operation of binary outputs.
Note: When operating the "Test" menu, the "IN SERVICE" LED is flashing. But if an alarm occurs
during the test, the flashing stops. The "IN SERVICE" LED flashing only in a lighting state.
4.2.8.1
Scheme Switch
The automatic monitor function (A.M.F.) can be disabled by setting the switch [A.M.F] to "OFF".
Disabling the A.M.F. inhibits trip blocking even in the event of a failure in the items being
monitored by this function. It also prevents failures from being displayed on the "ALARM" LED
and LCD described in Section 4.2.1. No events related to A.M.F. are recorded, either.
Disabling A.M.F. is useful for blocking the output of unnecessary alarms during testing.
• Select "Test" on the "MAIN MENU" screen to display the "Test" screen.
•
Select "Switch" to display the "Switch" screen.
• Enter 0 or 1 to disable the A.M.F. or not and press the ENTER key.
• Enter 0(=Off) or 1(=State0) or 2(=State3) to set forcibly the test condition of the Cold Load
Protection (CLPTST) and press the ENTER key.
• Enter 1(=On) to reset forcibly the thermal overload element for testing (THMRST) and press
the ENTER key.
• Enter 1(=On) for IECTST to transmit 'test mode' to the control system by IEC60870-5-103
communication when testing the local relay, and press the ENTER key.
• Press the END key to return to the "Test" screen.
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