No Alarms Description
1 Bypass voltage failure Bypass voltage is out of the limit
2 Bypass phase sequence wrong Phase sequence of bypass mains voltage is not OK
3 Inverter not sync. with bypass
Frequency of bypass voltage is beyond the frequency range for online operation or bypass voltage is out of
limit.
4 Battery breaker open Battery fuses blown or breaker opened by user
5 Battery test failure Battery failure
6 Rectier temperature high Rectier IGBT module temperature high
7 Rectier overload RMS current drawn from any of the input lines exceeds its nominal value.
8 Rectier communication lost Front panel can not communicate with rectier
9 Input voltage failure Input voltage is out of the limit
10 Input phase sequence wrong Phase sequence of input mains voltage is not OK
11 Rectier not sync. with input
Frequency of input mains voltage is beyond the frequency range of rectier or input mains voltage is out of
limit.
12 Rectier not precharged DC voltage not charged by inrush circuit
13 DC voltage failure DC Bus voltage is out of the limit
14 Inverter temperature high Inverter IGBT module temperature high
15 Output overload RMS current drawn from any of the output lines exceeds its nominal value.
16 Inverter DC component high Inverter voltage’s DC component is out of the limit
17 Inverter communication lost Front panel can not communicate with inverter
18 Output DC component high Output voltage’s DC component is out of the limit
19 Output voltage failure Output voltage is out of the limit
20 Output short circuit Short circuit at the output
21 Master communication lost Slave cannot communicate with master
22 Slave not sync. with master Slave lost the synchronization with the master
23 N number failure Parallel UPS count is below the adjusted N number
24 Redundancy lost Parallel system alarm. The total load is more than the redundancy load.
The formula is : Load % > N / (N+1) * 100
25 Ambient temperature high Maximal ambient temperature reached
Appendix-1: Alarms List
To Next Page
Loading...
