41
No. Event Description
1
None No set-up.
2
Load On Inverter The UPS works in On-Line mode.
3
Load On Bypass The UPS works in Bypass mode.
4
Load On Battery
When the main AC source fails, the batteries
supply power to the critical loads.
5
Battery Low
When the UPS runs in Battery mode, battery
voltage is lower than the setup limit (default:
220Vdc).
6
Bypass Input Abnormal
The bypass voltage, frequency or phase
sequence is abnormal.
7
Battery Test Fail
During the battery test, the battery voltage is out
of the setup limit.
8
Internal Comm. Fail
The #n power module’s internal communication
is abnormal.
9
External Parallel Comm. Fail
(For parallel application only)
In parallel mode, parallel communication is
abnormal.
10
Output Overload
The UPS is overloaded or the UPS shuts down
to let the bypass supply power to the critical
loads.
11
EPO Activated
The EPO button is pressed to urgently power off
the UPS.
12
Load On Manual Bypass
The Manual Bypass Switch (Q3) is turned on and
the UPS transfers to Manual Bypass mode.
13
Battery Over Temperature
The external battery cabinet’s temperature is too
high.
14
Output Voltage Abnormal The output voltage is abnormal.
15
Battery Need Replacement The battery replacement date is due.
16
Bypass Over Temperature The bypass static switch temperature is too high.
17
Bypass Static Switch Fault
The bypass static switch has an open/ short
issue.
18
UPS Over Temperature The UPS temperature is too high.
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