LEGRAND KEOR HPE 200 kVA Manuel De Fonctionnement page 227

Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
66 OMP06263 REV. D
UPS user manual
Manuel de l'utilisateur de l'ASI
Utilizzo dell'UPS
A63 STARTING SEQUENCE BLOCKED
During the UPS start-up a failure prevented the proper execution of the
sequence.
 Control devices in wrong position or operated improperly.
 Possible internal fault.
1. Make sure the position of the control devices (isolators, selectors)
is as specified in the procedures (see "Installation and start-up"
section).
2. If the alarm persists, contact our Technical Support Service.
A64 ULTRA FAST GRID MONITOR
Sudden drop of the AC input voltage (fast sensor)
 Voltage drop on the AC mains (brown-out).
 Possible internal fault.
1. Check the mains voltage.
2. If the alarm persists, contact our Technical Support Service.