ITYS 1-3 kVA - 551430A - SOCOMEC
36
EN
8. TROUBLESHOOTING
8.1. Typical alarms and faults
To check the UPS mode and History log:
1. Press any button on the front panel display to activate the menu options.
2. Press
on the menu of “History log”.
3. Scroll through the listed events and faults.
The following table describes typical conditions.
PROBLEM DISPLAYED POSSIBLE CAUSE ACTION
Battery mode
A mains power failure has
occurred, and the UPS is in
Battery mode.
The UPS is powering the equipment with
battery power. Prepare your equipment for
shutdown.
Battery low
The UPS is in Battery mode and
the battery is running low.
This warning is approximate, and the actual
time to shutdown may vary significantly.
No battery The batteries are disconnected.
Check that all batteries are properly
connected.
Battery fault
The battery test has failed due to
bad or disconnected batteries,
or the battery minimum voltage
is reached in Optimize Battery
Management cycling mode.
Check that all batteries are properly
connected. Start a new battery test: if the
condition persists, contact your service
representative.
The UPS does not
provide the expected
backup time.
The batteries need charging or
service.
Apply mains power for 48 hours to charge
the batteries. If the condition persists, contact
your service representative.
Bypass mode
An overload or a fault has
occurred, or a command has
been received and the UPS is in
Bypass mode.
Equipment is powered but not protected
by the UPS. Check for one of the following
alarms: over-temperature, overload or forced
bypass from dry in signal.
Power overload
Power requirements exceed the
UPS capacity (greater than 105%
of nominal).
Remove some of the equipment from the
UPS. The alarm resets when the condition
becomes inactive.
Over-temperature
warning
The UPS internal temperature
is too high. At the warning level,
the UPS generates the alarm but
remains in the current operating
state.
Clear vents and remove any heat sources.
Ensure the airflow around the UPS is not
restricted.
The UPS does not start
The input source is not connected
correctly.
Check the input connections.
The Remote Power Off (RPO)
switch is active or the RPO
connector is missing.
If the UPS Status menu displays the "Remote
Power Off" notice, deactivate the RPO input.
Emergency power off RPO is active Check the RPO connector status
Fan fault Fan abnormal Check if the fan is running normally
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