Eaton 93PR Series - 6.3.5. Switch from “Online” mode to “ESS” mode; 6.3.6. Switch from “ESS” mode to “Online” mode; 6.3.7. System shutdown

Eaton 93PR 15-80 kW UPS
Installation and Operation Manual
68
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6.3.5. Switch from “Online” mode to “ESS” mode
Tip: "ESS" is displayed only if the Advanced Energy Saving Solution (EAA) mode feature is
enabled by the facility or service personnel.
The load switches to ESS mode:
1. Select “Control” on the menu, and enter the password to access the control interface.
2. Click “System” on the control interface to switch to the system interface.
3. Click the “Enable ESS” button on the system interface, and press “OK” to conrm.
4. If no exception is detected, the UPS will switch to ESS mode when the battery is fully
charged. If any exception is detected, the UPS will switch to the ESS mode when the
exception is removed.
If the bypass is unavailable or the conditions for switching to the ESS mode are immature, the
power module will continue operation, and the UPS will sound an alarm. Otherwise, the entire
UPS system will switch to the ESS mode, and power will be supplied to the critical load from the
bypass. The normal status indicator lamp will be lit, and the system status displayed is “UPS
Online, ESS”. The UPS status is “Ready”.
6.3.6. Switch from “ESS” mode to “Online” mode
Tip: "ESS" is displayed only if the Advanced Energy Saving Solution (EAA) mode feature is
enabled by the facility or service personnel.
The load switches to “Online” mode:
1. Select “Control” on the menu, and enter the password to access the control interface;
2. Click “System” on the control interface to switch to the system interface;
3. Click “Disable ESS” button on the system interface, and press “OK” to switch to the normal
mode;
4. The normal status indicator lamp is lit.
If power module is unavailable, and the system remains at the bypass, the UPS will sound an
alarm. Otherwise, the UPS system switches to battery mode and then to online mode. The online
mode indicator lamp is lit, and the UPS status displayed is “Online Mode”. The UPS status is “In
Service”.
6.3.7. System shutdown
For maintenance at the critical load, the following steps shall be performed for shutdown:
Perform UPS shutdown with the “LOAD OFF” command on the UPS control screen. The UPS
“LOAD OFF” instruction enables the UPS to switch off all outputs.
UPS (including bypass) is at the shutdown status until it is restarted. Steps of performing “LOAD
OFF”:
1. Select “Control” on the menu, and enter the password to access the control interface;