USV MT3200
Instruction manual
MT Series
Page 28 of 36
Problem
Possible cause:
Remedy:
The UPS cannot be
started and no alarm
signal is given.
Mains power is not
available to the UPS or
is switched off.
Ensure that all connections
have been established and
verify this by means of
appropriate voltage
measurements. Check the
line-side fuse for the UPS.
The UPS is in overload
mode, the overload
indicator is illuminated,
and an audible warning
notification sounds
(sequence (C)).
The consumer load(s)
are overloading the
UPS.
Disconnect one or all of the
consumer loads from the
UPS until the load indicator
is less than or equal to
100%.
The bridging time is less
than the rated value.
The batteries are not
fully charged, or
individual batteries are
defective.
Charge the batteries for
more than 8 hours and
repeat the test. If the
problem persists, the
batteries must be replaced.
The UPS appears to be
OK, but the consumer
load is not operating.
The connection between
the UPS and the
consumer load is
defective.
Check the connection and
confirm it by measuring the
voltage.
The output fuse is not
enabled.
Check the UPS output fuse.
Confirm this via an
additional voltage
measurement at the UPS
output.
If the fault profile you are experiencing with your UPS is not described in the
above table, inform our service department making sure you have the following
information to hand:
1. Model number, serial number
2. Date on which the problem occurred
3. Detailed description of the problem
