48
˙
Alarm 19: When the mains is connected during the start-up, a
phase rotation error is detected and the start-up procedure is
inhibited.
˙
Alarm 20: When the bypass is connected during the start-up, a
bypass phase rotation error is detected and the start-up procedure
is inhibited.
˙
Alarm 21: This alarm appears when in any phase, the rectifier input
voltage phase to neutral is out of the set margins (+15%/–20% by
default) or the rectifier input frequency is out of the set margins (±
0,5Hz by default). Then the rectifier is shut down.
˙
Alarm 22: This alarm appears when any IGBT in the rectifier side,
desaturates the number of times programmed by display (50 by
default).
˙
Alarm 23: This alarm appears when there is a (*) DSP Internal Error
in the rectifier module, shutting down the rectifier immediately.
There will be 3 more retries before the rectifier blocking.
˙
Alarm 24: When a mains phase rotation error is detected and
under these conditions the rectifier is tried to be turned ON, an
input phase rotation alarm appears shutting down the rectifier.
˙
Alarm 25: This alarm appears when any IGBT in the inverter side,
desaturates the number of times programmed by display (200 by
default).
˙
Alarm 26: When the inverter output is overloaded, depending on
the level of this overload, the inverter will be shut down after some
time according to the UPS overload curve and this alarm will
appear.
˙
Alarm 27: When an external shutdown signal is enabled, the
inverter will shut down appearing this message.
˙
Alarm 28: When the inverter is running and the maintenance
bypass switch is turned ON the inverter shuts down immediately.
˙
Alarm 29: This alarm appears when, in a parallel system, one UPS
goes to battery mode. The inverter will shut down.
˙
Alarm 30: This message indicates that one UPS is running over
160% of load in a parallel system.
˙
Alarm 31: When an over-temperature is detected by the PFC or
inverter temperature sensors, after 1 minute time the inverter will
be turned off automatically. If over-temperature condition remains
after another 1 minute with the rectifier working, rectifier is also
blocked (alarm 60).
˙
Alarm 32: When the rectifier is overloaded, depending on the level
of this overload, the inverter will be shut down after some time
according to the rectifier overload curve and this alarm will appear.
If this overload is still present with the inverter switched off, the
rectifier will be blocked after 30’’ and a blocking alarm 61 will
appear.
˙
Alarm 33: This alarm appears when there is a (*) DSP Internal Error
in the inverter module, shutting down the inverter immediately.
There will be 4 more retries before the inverter blocking.
˙
Alarm 34: This alarm appears when an output short-circuit is
detected limiting the output RMS current up to the set value
(150% of nominal current by default). The short-circuit is detected
when the output voltage phase to neutral is lower than 8% of
nominal voltage. The system will retry twice to restart.
˙
Alarm 35: With the inverter is running, if there’s a bypass phase
rotation error, the inverter will shut down.
˙
Alarm 36: This alarm appears when there is a (*) DSP Internal Error
in the UPS module, shutting down the UPS immediately. There will
be 2 more retries before the UPS blocking.
˙
Alarm 37: This alarm describes that on battery mode, the battery
bank reaches the 10.5V/bat. This is the end of backup time,
shutting down the UPS.
˙
Alarm 38: The EPO (Emergency Power Off) switch is ON. The UPS
and the static bypass are switched off and no AC voltage present
at the output anymore.
˙
Alarm 39: This alarm appears after 3 times detecting output short-
circuit. Then the UPS and the static bypass are switched off and no
AC voltage present at the output anymore.
˙
Alarm 40: This alarm appears when there is a (*) DSP Internal Error
in the UPS module, for three times shutting down the UPS. The
UPS blocks including the bypass, so no AC voltage present at the
output anymore.
˙
Alarm 41: This alarm appears when there is one of the following
conditions:
Positive DC bus voltage over 450V.
Positive DC bus voltage less than 325V.
Negative DC bus voltage over –450V (absolute value).
˙
Alarm 42: This alarm appears when the UPS is blocked for any
reason. This condition blocks also the rectifier.
˙
Alarm 43: After 3 times shutting down the rectifier for desaturation
and retry, this alarm will appear indicating rectifier blocked.
˙
Alarm 44: If an error in the initial rectifier ramp is detected during
the PFC start up, this alarm will appear blocking also the rectifier.
˙
Alarm 45: There is a command from the microprocessor to the DSP,
with no response from the rectifier module of the DSP. The rectifier
will block.
˙
Alarm 46: After 4 times shutting down the rectifier because of (*)
DSP Internal Error in the rectifier module, this alarm will appear
indicating rectifier blocked.
˙
Alarm 47: During the start-up there is an input contactor test. If
this test ends unsuccessfully the rectifier will be blocked.
˙
Alarm 48: If the output voltage ramp doesn’t work properly during
