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6.4.8
Transfer from Double Conversion Mode to ESS Mode
To transfer the load to HE Normal mode:
1.
Tap the CONTROLS tab on the main menu navigation bar. The Control screen is displayed.
2.
Tap the EAA CONTROLS tab on the secondary Control menu navigation bar. The EAA CONTROLS
screen is displayed..
3.
Tap the ENABLE ESS button.
All of the UPSs transfer to ESS mode if no abnormal power conditions are detected. If abnormal power
conditions are detected, the UPSs will wait and transfer to ESS mode when conditions are cleared.
The NORMAL status indicator is illuminated.
6.4.9
Transfer from Double Conversion to Bypass Mode and Shut Down all UPMs
To transfer the critical load to Bypass mode and shut down the UPMs:
1.
Transfer the critical load to bypass by performing the procedure in paragraph 6.4.5.
2.
Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
3.
Tap the MODULES CONTROLS tab on the secondary Control menu navigation bar. The UPM Select
screen is displayed.
4.
On the UPM Select screen, select UPM 1. The UPM Control Screen is displayed.
5.
Tap the SHUT DOWN MODULE button.
The UPM status indicates SHUTDOWN. The power module is turned off.
Logic power remains on.
6.
Repeat Steps 2 through 5 selecting UPM 2 to shut down UPM 2.
The UPM status indicates SHUTDOWN. The power module is turned off.
Logic power remains on.
7 .
Repeat Steps 2 through 7 for each UPS in the parallel system.
6.4.10 Single UPM Shutdown
To shut down a single UPM:
1.
Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
2.
Tap the MODULES CONTROLS tab on the secondary Control menu navigation bar. The UPM Select
screen is displayed.
3.
On the UPM Select screen, select the UPM to shutdown. The UPM Control Screen is displayed.
4.
Tap the SHUT DOWN MODULE button.
The UPM status indicates SHUTDOWN. The power module is turned off. The remaining UPMs continue to
supply the critical load.
Logic power remains on.
Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4
UPS Operating Instructions
www.eaton.com/powerquality
6-29
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