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No.
7
Internal communication failure
8
External parallel communication
loss
9
Output overload warning/
shutdown
10
Power module fault shutdown
11
Power module warning
12
EPO activated
13
Load on manual bypass
14
Battery cabinet over
temperature warning/ shutdown
15
Abnormal inverter voltage
16
Battery needs replacement
17
Bypass over temperature
warning/ shutdown
18
Bypass static switch fault
19
General alarm
20
External battery breaker
shunt trip
21
Backfeed protection
Ultron DPS Series
Event
Description
Power unit'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 power unit has abnormalities and it shuts
down the UPS to let the bypass supply power to
the critical loads.
The power unit has abnormalities but the UPS
still runs in normal mode.
The EPO button
was pressed to urgently
E P O
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 too high or too low.
Battery replacement date is due.
Bypass static switch temperature is too high.
The bypass static switch has open/ short issue.
When any UPS alarm occurs.
The UPS will send a signal to trip the external
battery breaker when the EPO button
pressed.
When the UPS has backfeed voltage.
4-6
is
E P O
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