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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 the A.M.F. is useful for blocking the output of unnecessary alarms during testing.
<A.M.F.>
• Enter "Off" or "On" to disable the A.M.F. or not and press the ENTER key.
<CLP TST>
• Enter "Off" or "S0" (State0) or "S3" (=State3) to set forcibly the test condition of the Cold
Load Protection and press the ENTER key.
<UVTEST>
• Enter "On" or "Off" to disable the UV block when testing UV elements or not and press the
ENTER key.
<THMRST>
• Enter "On" or "Off" to set the Reset relay time to instantaneous reset or not and to test the hot
curve characteristic of THM when testing THM and press the ENTER key.
<SHOTNUM>
• Enter "Off" or "S1" or "S2" or "S3" or "S4" or "S5" or "S6" to set shot number for autoreclose
test and press the ENTER key.
<Test mode>
• Enter "Test" or "Normal" to test the Control function or not and press the ENTER key.
"Test" is used not to disturb other GRD150s or bay control units when testing the local
GRD150.
<Interlock>
• Enter "Bypass" or "Normal" to bypass the Interlock function or not and press the ENTER
key.
<IEC103 test>
This setting is used to transmit 'test mode' to the control system by IEC60870-5-103
communication when testing the local relay.
• Enter "On" or "Off" and press the ENTER key.
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