Shutdown Procedure - ABB PowerWave 33 Series 3 User Manual

8. Press simultaneously the two ON/OFF buttons on the UPS-control panel (PMD) on all
control panels to turn the UPSs OFF. On the LCDs message "LOAD OFF, SUPPLY
FAILURE" will appear
9. Close Parallel Isolator IA2 (position ON) of UPS 1, on LCD: "PARALLEL SW CLOSED"
will appear "EVENT LOG" menu.
10. Press simultaneously the two ON/OFF buttons on the UPS-control panel (PMD) to turn
the UPS ON. On output Terminal Block there is now UPS power and on all LCDs:
"LOAD PROTECTED" will appear.
11. Perform step 9. and 10. until all the unit of the system are complete switched in parallel.
12. Load transfer to Maintenance Bypass
On the control panel go to Menu COMMANDS and choose command "LOAD TO
BYPASS", (for parallel operation is enough to give the order in one of the units) and
transfer the load to Bypass.
Close Maintenance Bypass Switch IA1 (position ON)
On LCD: "MANUAL BYP IS CLOSED" will appear and the LED-indicator will indicate as
shown below:
LED Indicator
LINE 1
LINE 2
BYPASS
INVERTER
BATTERY
13. Connect Load to the UPS Output
Insert fuses in output Distribution Board
Verify on control Panel that the load is on bypass
14. Open Maintenance Bypass Switch IA1
On LCD: "MANUAL BYP IS OPEN" will appear.
15. Check on LCD the Output Powers, Voltages Currents and Frequencies.
16. Load transfer to Inverter
On control panel go to Menu COMMANDS, choose command "LOAD TO INVERTER"
and transfer the load to inverter.
On all LCDs: "LOAD PROTECTED" will appear
17. Check the output Voltages and Currents once again.
THE LOAD IS NOW PROTECTED BY THE POWERWAVE 33

6.5.2 Shutdown procedure

THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED
BY A SERVICE ENGINEER FROM THE MANUFACTURER OR FROM AN
AGENT CERTIFIED BY THE MANUFACTURER.
WARNING!
The POWERWAVE 33 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.
Modifications reserved
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