LEGRAND NUMERIC HP i 33 40 kVA Series User Manual page 20

Table 2-6. Abnormal status and alarm/protection function
Alarm action
Buzzer beeps
slowly.
13
Protection action
None
CAUTION
The UPS will restart and charge the batteries after ensuring
protection for battery under-voltage after mains recover to normal
power supply.
Fault name
Bypass over-frequency.
Bypass under-frequency.
Bypass phase sequence is wrong.
Bypass lack-phase.
Output circuit abnormal.
Output current DC component is too large.
System card without redundancy.
Environment temperature is too high
Generator fails to start.
Generator fails to shut down.
The communication with touch screen abnormal.
The communication of cabinet
inner busbar 1 abnormal.
The communication of cabinet
inner busbar 2 abnormal.