Lhmi Functionality; Protection And Alarm Indication - ABB REF615 Operation Manual

1MRS756708 A
3.2.4
3.2.4.1
615 series
Operation Manual

LHMI functionality

Protection and alarm indication

Protection indicators
Protection indicator LEDs are Ready, Start and Trip.
Table 7: Ready LED
LED state Description
Off
On
Flashing
Table 8: Start LED
LED state Description
Off
On
Flashing
Table 9: Trip LED
LED state Description
Off
On
Alarm indicators
The 11 matrix programmable LEDs are used for alarm indication.
Auxiliary supply voltage is disconnected.
Normal operation.
Internal fault has occurred or the IED is in test mode. Internal faults are
accompanied by an indication message.
Normal operation.
A protection function has started and an indication message is displayed.
• If several protection functions start within a short time, the last start is
indicated on the display.
A protection function is blocked.
• The blocking indication disappears when the blocking is removed or
when the protection function is reset.
Normal operation.
A protection function has tripped and an indication message is displayed.
• The trip indication is latching and must be reset via communication or
by pressing .
• If several protection functions trip within a short time, the last trip is
indicated on the display.
Section 3
615 series overview
21