Shutdown Procedure - ABB PowerScale CABINET A User Manual

5.1.2

SHUTDOWN PROCEDURE

WARNING!
The POWERSCALE may be shutdown completely, if the load does not need input power for an extended period of
time.
It may be switched to Maintenance Bypass Mode for service or maintenance purposes, or transferred to the OFF-
LINE Mode (ECO-Mode), if the load does not need the highest degree of protection.
The load may be disconnected by means of the two ON/OFF (LOAD-OFF) buttons for security reasons.
Complete Shutdown procedure of POWERSCALE:
Only in case there is no need to supply the load, the UPS System can be completely shutdown. The following
procedures can only be executed after the load has completely been de-energized.
!
NOTE!
1. Verify that the loads are shutdown and that there is no need for power supply to the load.
2. If the loads are all disconnected, press simultaneously both ON/OFF-Buttons on UPS-Control Panel
on all Control Panels.
On the LCD: "LOAD OFF, SUPPLY FAILURE" will appear and the LED-indicator will indicate as
shown below:
LED Indicator
LINE 1
LINE 2
BYPASS
INVERTER
BATTERY
3. Open all Parallel Isolator Switches IA2.
4. Open battery fuses/breakers on external battery cabinets or racks.
5. Open the mains fuses/breaker in the building distribution panel.
!
NOTE!
THE POWERSCALE IS NOW VOLTAGE FREE.
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED BY A
SERVICE ENGINEER FROM THE MANUFACTURER OR FROM A AGENT
CERTIFIED BY THE MANUFACTURER.
IN THE CASE THAT THE PARALLEL UPS SYSTEM HAS TO BE TURNED OFF,
THEN BOTH ON/OFF BUTTONS ON ALL UPS MODULES HAVE TO BE PUSHED.
IN THIS CASE THE POWER SUPPLY TO THE LOAD WILL BE INTERRUPTED.
Colour
Green
OFF
OFF
OFF
Green
MAKE SURE THE INTERNAL DC-CAPACITORS (ELCO) HAVE BEEN
DISCHARGED WAITING AT LEAST 10 MINUTES.
04-3004_S5_OPM_ABB_POWERSCALE_10-50kVA_EN_150113.doc
Printed in Switzerland – Modifications reserved
Section-5
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