Delta Ultron Series User Manual page 41

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