UPS user manual
Manuel de l’utilisateur de l’ASI
Utilizzo dell’UPS
58 OMW07104
REV.
A
Alarm
A63
START SEQ BLOCK
Description
During the UPS start-up a failure prevented the proper execution of the
sequence.
Possible
causes
Control devices in wrong position or operated improperly.
Possible internal fault.
Solutions
Make sure the position of the control devices (isolators, selectors) is
as specified in the procedures (see “Installation and start-up” section).
If the alarm persists, contact our Technical Support Service.
Alarm
A64
MAINS UNDERVOLTAGE
Description
Sudden drop of the AC input voltage (fast sensor)
Possible
causes
Voltage drop on the AC mains (brown-out).
Possible internal fault.
Solutions
Check the mains voltage.
If the alarm persists, contact our Technical Support Service.
