ABB REG316 4 Series - No Active Protection Functions; Normal Operation; Pick-Up of a Protection Function (General Start); Protection Function Trip (General Trip)

REG 316*4 1MRB520049-Uen / Rev. E ABB Switzerland Ltd
5-107
5.13.4.3. No active protection functions
If none of the protection functions is active (none programmed or
all blocked), the initialisation procedure is completed and no er-
rors were found, the device is not standing by. In this status, the
green LED on the LDU flashes and the green LED in the row of
LED’s at the top left of the device lights continuously.
green yellow red
Fig. 5.83 LED statuses when none of the protection functions
is active
5.13.4.4. Normal operation
When the device is active and there are no errors or faults, the
green, yellow and red LED’s are all off.
green yellow red
Fig. 5.84 LED statuses in normal operation
5.13.4.5. Pick-up of a protection function (General start)
The pick-up of at least one protection function (General start sig-
nal active) is indicated by the fact that the green and yellow
LED’s light. The yellow LED remains lit after the general start
has reset and only extinguishes after it has been actively reset
(see Section 5.13.8.6.).
green yellow red
Fig. 5.85 LED statuses for a general start
5.13.4.6. Protection function trip (General Trip)
The trip of at least one protection function (General Trip signal
active) is indicated by the fact that the green, yellow and red
LED’s light. The yellow and red LED’s remain lit after the general