LED Indication Information
Flashing Terminal in test mode
Red:
Steady Trip command issued
3.4.3 Indication LEDs
The LED indication module comprising 15 LEDs is standard in 670 series. Its main
purpose is to present an immediate visual information for protection indications or
alarm signals.
Alarm indication LEDs and hardware associated LEDs are located on the right hand
side of the front panel. Alarm LEDs are located on the right of the LCD screen and
show steady or flashing light.
• Steady light indicates normal operation.
• Flashing light indicates alarm.
Alarm LEDs can be configured in PCM600 and depend on the binary logic. Therefore
they can not be configured on the local HMI.
Typical examples of alarm LEDs
• Bay controller failure
• CB close blocked
• Interlocking bypassed
• Differential protection trip
• SF6 Gas refill
• Position error
• CB spring charge alarm
• Oil temperature alarm
• Thermal overload trip
The RJ45 port has a yellow LED indicating that communication has been established
between the IED and a computer.
The Local/Remote key on the front panel has two LEDs indicating whether local or
remote control of the IED is active.
Section 3 1MRK505222-UUS C
Local HMI
60
Technical reference manual
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