PM SERIES
UDD-SD-125/
Release Date: 20.01.2015/Rev No: 0/Rev.
Date
:
49
Cabinet Alarm Information
No.
Display message
Meaning
1
Rectifier Fault
Rectifier detected faulty. Rectifier and inverter and
charger shut down.
2
Rectifier Over Temperature
The temperature of heat sink is too high to keep the
rectifier running. Charger and inverter shut down.
3
Inverter Over temperature
The temperature of the inverter heat sink is too high to
keep inverter running.
4
Rectifier over-current
Rectifier failure due to over-current
5
Input thyristor failure
Failure of input thyristor
6
Battery discharge thyristor
failure
Failure of battery discharge thyristor
7
Battery charge thyristor failure
Failure of battery charge thyristor
8
Fan fault
At least one of the cooling fans fails. Rectifier and
inverter and charger shut down.
9
DC Bus over-voltage
Rectifier, inverter and battery converter are shutdown
due to high DC bus voltage.
10
DC Bus under-voltage
Rectifier, inverter and battery converter are shutdown
due to low DC bus voltage.
11
DC bus unbalance
If the difference between positive DC bus and negative
DC bus exceeds 30V, this warning shall occur.
12
Soft start fault
Rectifier could not be started due to low DC bus voltage
13
Input Neutral line missing
If Input Neutral line is missing or disconnected while
the UPS is in operation, the UPS will generate Neutral
line failure alarm and go into Battery mode.
14
Battery Reverse
The polarity of the battery is reversed.
15
No Battery
Battery is disconnected
16
Positive Battery Charger
fault
The positive battery Charger is fault. The charger
will be shut down.
17
Negative battery charger
fault
The negative battery charger is fault. The charger will
be shut down.
18
Battery under-voltage
The battery voltage is too low and the charger has been
deactivated.
19
Battery over-voltage
The battery voltage is too high and the charger has been
deactivated.
20
Battery under-voltage
pre-warning
The UPS is in battery operation and the battery voltage
is low.
Note: Runtime is limited in duration.
21
Mains freq. abnormal
Mains frequency is out of limit range and results in
rectifier shutdown.
22
Mains volt. Abnormal
Mains Voltage exceeds the upper or lower limit and
results in rectifier shutdown.
