Installation and start-up of KEOR HPE UPS 60÷160 kVA
Installation et démarrage de l’ASI KEOR HPE 60÷160 kVA
Installazione e avviamento KEOR HPE UPS 60÷160 kVA
OML46086 REV. C
49
5.3
BASIC TROUBLESHOOTING
This paragraph provides the basic information if any problems occur during the start-up procedure.
In case the problem cannot be solved, contact the service department.
1) After closing RCB the LCD display is still blank
•
Check the phase rotation of supply voltage.
•
Make sure the input voltage and frequency are within tolerance.
•
Check the rectifier protection fuses F1-F2-F3; they are inside the unit.
2) After step #1 the UPS stops the starting sequence and shows one or more alarm messages
•
Check the alarms indicated on the display and remove their causes.
•
Close RCB and try to restart the UPS.
3) After step #2 the unit shows the alarm A15 – Byp fault
•
Make sure the switch SBCB is closed.
•
Check the protection fuses of the static bypass switch; they are inside the unit.
•
Check the phase rotation of the bypass voltage.
•
Make sure voltage and frequency are within tolerance.
4) After step #3 the unit shows the alarm A7 – BCB open
•
Make sure you have closed the battery circuit breaker; the circuit breaker or the fuse
holder is external to the UPS system.
•
Check the battery fuses.
•
Check the interconnection between the auxiliary contact of the battery circuit breaker
(in the external cabinet) and the terminals X10-9/10.
5.4
SHUT-DOWN PROCEDURE
No.
ACTION
LCD DISPLAY
OPERATING CHECKS
1
Open OCB
A30 GENERAL ALARM
The supply to the load is interrupted.
LED #7 off.
2
Open BCB
A30 GENERAL ALARM
The battery is disconnected from the
rectifier. Led #4 red flashing.
3
Open SBCB
A30 GENERAL ALARM
The bypass supply is disconnected. LED
#2 off.
4
Open RCB
A30 GENERAL ALARM
Rectifier and inverter shutdown.
5
BLANK
End of shutdown procedure.
