Section 6 Operating procedures
6.1 Monitoring
6.1.1 Indications
The operation of the protection relay can be monitored via three different indications on
the LHMI.
• Three indicator LEDs with fixed functionality: Normal, Pickup and Trip
• 11 programmable LEDs
• Information on the display
6.1.1.1 Monitoring indication messages
Indication messages and tripping data are shown in a dialog box.
1. Read the indication message in the dialog box.
The message can indicate the pickup or tripping of protection functions or an internal
fault in the device.
2.
Press
to close the indication message without clearing it or press to activate
the Clear view and to clear messages.
A071264-ANSI V2 EN
Figure 57: Indication message
1MAC456939-IB D Section 6
Operating procedures
620 series ANSI 81
Operation Manual
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