Borri ASD91, Operating Manual

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Installation and start-up of UPS B8000FXS 10-60kVA
Installazione e avviamento UPS B8000FXS 10-60kVA
OMD91050 REV. G 55
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 you have closed circuit breaker SBCB.

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 carrier 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 Bac1-Bac2 of the UPS.
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.