ABB Relion 630 Series Operation Manual page 30

Section 3
IED Overview
22
Table 10: Alarm indications
LED state Description
Off Normal operation. All activation signals are off.
On •
•
•
•
•
Flashing •
•
•
The 13 programmable three-color LEDs are used for alarm indication. START/
PICKUP yellow color LED indicates start signal of load shed. TRIP RED color LED
indicates the operate signal of load shed.
Table 11: Alarm indications
LEDs Operations
GRP1_LED 1 •
•
GRP1_LED 2 •
•
GRP1_LED 3 Spare
GRP1_LED 4 SubNetwork 1 load shed block (Red indication)
GRP1_LED 5 SubNetwork 2 load shed block (Red indication)
GRP1_LED 6 SubNetwork 3 load shed block (Red indication)
GRP1_LED 7 SubNetwork 4 load shed block (Red indication)
GRP1_LED 8 SubNetwork 1 slow load shed block/inhibited (Red indication)
GRP1_LED 9 SubNetwork 2 slow load shed block/inhibited (Red indication)
GRP1_LED 10 SubNetwork 3 slow load shed block/inhibited (Red indication)
GRP1_LED 11 SubNetwork 4 slow load shed block/inhibited (Red indication)
GRP1_LED 12 SubNetwork 1 load shed operated (Red indication)
GRP1_LED 13 SubNetwork 2 load shed operated (Red indication)
GRP1_LED 14 SubNetwork 3 load shed operated (Red indication)
GRP1_LED 15 SubNetwork 4 load shed operated (Red indication)
GRP2_LED 1 Grid 1 (GR1) connected peer electrical network area far-end CB Close (Green
indication)
GRP2_LED 2 GR1 connected peer electrical network area data error (Red indication)
Table continues on next page
Follow-S sequence: The activation signal is on.
LatchedColl-S sequence: The activation signal is on, or it is off but the
indication has not been acknowledged.
LatchedAck-F-S sequence: The indication has been acknowledged, but
the activation signal is still on.
LatchedAck-S-F sequence: The activation signal is on, or it is off but the
indication has not been acknowledged.
LatchedReset-S sequence: The activation signal is on, or it is off but the
indication has not been acknowledged.
Follow-F sequence: The activation signal is on.
LatchedAck-F-S sequence: The activation signal is on, or it is off but the
indication has not been acknowledged.
LatchedAck-S-F sequence: The indication has been acknowledged, but
the activation signal is still on.
Fast load shed operated (Red indication)
Fast load shed start (Yellow indication)
Slow load shed operated (Red indication)
Slow load shed start (Yellow indication)
PML630/Compact Load-Shedding Solution
1MRS757183 F
Operation Manual