List Of Faults And Corrective Actions; Useful Leds On The Ieds And Switches - ABB REB500 Operation Manual

1MRK 500 124-UEN
6.2
6.2.1
Operation Manual
Distributed busbar protection REB500

List of faults and corrective actions

Useful LEDs on the IEDs and switches

The Fault and Power (P) LED of the Switch are found on the left side of the switch.
The green link LED for optical and electrical connection is located on the electrical
connector. The same LEDs are also available on the back side of the switch.
Fig. 6.1 LED Indication on the back side of the switch
The Ready LED is on the top of the BU/CU. The Alarm Indicator LED is located
in the right lower corner of the IED, integrated within the alarm button (see Section
4.3.3 and 4.3.6).
Section 6
Troubleshooting
85