Ready LED indicator
Table 1. Ready LED indications
| LED state |
Description |
| Off |
Auxiliary supply voltage is disconnected. |
| On |
Normal operation. |
| Flashing |
Internal fault has occurred or the protection relay is in test mode. Internal faults are accompanied by an indication message. |
Alarm indicators
The 11 matrix programmable LEDs are used for alarm indication.
Table 2. Alarm indications
| LED state |
Description |
| Off |
Normal operation. All activation signals are off. |
| On |
- Non-latched mode: activation signal is still on.
- Latched mode: activation signal is still on, or it is off but has not been acknowledged.
- Latched flashing mode: activation signal is still on but has been acknowledged.
|
| Flashing |
- Non-latched flashing mode: activation signal is still on.
- Latched flashing mode: activation signal is still on, or it is off but has not been acknowledged.
|