P-164000476
9395P 500kVA / 600 kVA
110
Revision 002
User’s and Installation Guide
7.4.13 Transfer from Normal to Bypass mode and shut down UPS
To transfer the critical load to Bypass mode and shut down the UPS, perform the following procedure:
1
Transfer the critical load to bypass by performing the procedure in Section 7.3.11.
2.
Select CONTROLS on the main screen. SYSTEM CONTROLS screen opens up.
3.
Select MODULE CONTROLS. All the installed UPMs are showed here.
4.
Select UPM1 and then select SHUT DOWN UPM. Command confirmation pop-up screen will show
up asking confirmation for the action. Select YES. The UPM shuts down.
5.
Repeat step 4 for all remaining UPMs. (Go to the next UPM by selecting NEXT).
The UPM status indicates SHUTDOWN. The input and outout contactors open, the battery breaker or
disconnect is tripped, and the power module is turned off. The bypass source supplies the critical load
.
WARNING
Power is present inside the UPS cabinets.
7.4.14 Single UPM shutdown
To shutdown a single UPM:
1
Press the LOCK icon on the main screen. The Sign In screen is displayed. Use operator password
to log in (factory default password is 0101).
2.
Select CONTROLS on the main screen. SYSTEM CONTROLS screen opens up.
3.
Select MODULE CONTROLS. All the installed UPMs are showed here.
4.
Select one of the UPMs then select "SHUT DOWN UPM". Command confirmation pop-up screen
will show up asking confirmation for the action. Select YES. After this, the UPM opens it output
contactor and goes to IDLE. The power module remains on. The remaining UPMs supply the
critical load.
5.
To turn off the previously chosen power module, select SHUT DOWN UPM again. Command
confirmation pop-up screen will show up asking confirmation for the action. Select YES. The UPM
opens its input contactor and goes to SHUTDOWN. The power module is turned off. The remaining
UPMs continue to supply the critical load. Logic power remains on.
7.4.15 Single UPM restart
To restart a single UPM from a shutdown state:
1
Press the LOCK icon on the main screen. The Sign In screen is displayed. Use operator password
to log in (factory default password is 0101).
2.
Select CONTROLS on the main screen. SYSTEM CONTROLS screen opens up.
3.
Select MODULE CONTROLS. All the installed UPMs and their status can be seen here.
4.
Choose the desired UPM to start.
5.
Select START UPM to start UPM rectifier and inverter and to transfer the UPM to IDLE state. The
UPM will not support the load yet. Or select GO TO NORMAL to command the UPM straight to
normal mode where it will support the load. Then the UPM state is active.
7.4.16 UPS and critical load shutdown
To perform maintenance or service on the critical load, shut down power to the load by performing the
following procedure:
1.
Turn off all equipment that is being powered by the UPS.
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