Toshiba GRL150-100 Series Instruction Manual page 77

Line differential relay
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Table 4.2.1 Turning off latch LED operation
Step 1
Press the
RESET
the "Latest fault" screen
Step 2
Then, press the
period on the "Latest fault" screen
When any of the menu screens is displayed, the VIEW and RESET keys do not function.
To return from menu screen to the digest "Latest fault" screen, do the following:
• Return to the top screen of the menu by repeatedly pressing the END key.
• Press the END key to turn off the LCD.
• Press the VIEW key to display the digest "Latest fault" screen.
Displays in automatic supervision operation
Auto-supervision
E r r : R O M , A / D
If the automatic supervision function detects a failure while the LCD is off, the
"Auto-supervision" screen is displayed automatically, showing the location of the failure, and
the "ALARM" LED lights.
Press the VIEW key to display other digest screens in turn including the "Metering" and
"Latest fault" screens.
Press the RESET key to turn off the LEDs and LCD display. However, if the failure continues,
the "ALARM" LED remains lit.
After recovery from a failure, the "ALARM" LED and "Auto-supervision" display turn off
automatically.
If a failure is detected while any of the screens is displayed, the current screen remains displayed
and the "ALARM" LED lights.
Notes:
1) When configurable LEDs (LED1 through LED3) are assigned to latch signals by issuing an
alarm, press the
Operation
key more than 3s on
key in short
RESET
RESET
key more than 3s until all LEDs reset except "IN SERVICE" LED.
76
LED lighting status
"TRIP" LED
Configurable LED
continue to lit
turn off
turn off
6 F 2 S 0 8 2 8
(LED1 – LED3)

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Grl150-400 seriesGrl150-100a-10-10

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