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Alarm or Notice Possible cause Remark / Action
Input frequency deviation
(Alarm #8)
Intermittent Alarm
The utility power
frequency is out of
usable frequency range.
Operating phase related,
UPS switches to battery
power and shuts down.
Phase error (error in
network connection)
(Alarm #194)
Intermittent Alarm
Phase and neutral
conductors interchanged
at the input of the UPS
system.
Check / correct the
connection of phase and
neutral conductors.
Emergency Power Off
(Alarm #12)
Intermittent Alarm
The external contacts for
emergency power-off
were activated in settings
menu and triggered.
Load supplied by the UPS
is turned off immediately.
For more information, see
“EPO (Emergency Power
Off)” in chapter 8.4 on
page 58.
Output Overload
(Alarm #25)
Intermittent Alarm
Overload of the UPS
system.
Check the display for utili-
zation capacity of the UPS.
If necessary, reduce the
load by removing a portion
of your consumer.
Battery DC Over Voltage
(Alarm #68)
Intermittent Alarm
The voltage on the DC
intermediate voltage
circuit of the UPS has
exceeded the DC
tolerance range.
To protect the consumer,
the UPS immediately
switches the outlet off.
Connected load / load
type possibly unsuitable. If
the problem arises during
normal operation, check
with your dealer.
Charger Failure
(Alarm #34)
Continuous Alarm
Charger Failure
(Alarm #34)
Continuous Alarm
Battery charger was
disabled electronically.
Contact your service
representative.