Eaton 93PM-L 60-1, Installation And Operation Manual, Page: 144 / 164

132 Eaton 93PM-L 20 – 60 kW (208V) UPS Installation and Operation Manual P-164000711—Rev 03
CAUTION
All power to the critical load is lost when LOAD OFF is selected in the following step. You should use this
feature only when you want to de-energize the critical load.
2. Tap the LOAD OFF button.
An action confirmation screen is displayed. Follow the on screen prompts to shut down the UPS or to
cancel the shutdown. Selecting
YES will immediately shut down the UPS and de-energize the critical load.
Selecting NO will abort the shutdown.
CAUTION
Do not attempt to restart the system after Load Off until the cause of the shutdown has been identified and
cleared.
3. To restart the UPS after using the LOAD OFF follow the procedure in paragraph
6.3.1 Starting the UPS in Double Conversion Mode or 6.3.2 Starting the UPS in Bypass Mode .
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breakers and battery breakers
are opened. Wait at least 5 minutes before accessing internal components.
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WARNING
Emergency Power Off (EPO) and Remote Emergency Power Off (REPO) functionality is disabled for UPS
systems configured for UL 924 auxiliary lighting. To remove power from the system a LOAD OFF command
(see paragraph
6.3.15 Using the UPS LOAD OFF Command ) must be given using the front panel controls and
all breakers opened.
A UPS emergency power-off is initiated by the REPO pushbutton switch. In an emergency, you can use this
switch to control the UPS output. The REPO switch de-energizes the critical load and powers down the UPS
immediately, without asking for verification.
The UPS, including Bypass, remains off until restarted.
CAUTION
All power to the critical load is lost when the REPO switch is activated in the following step. You should use
this feature only when you want to de-energize the critical load.
NOTE The following instructions are for the Eaton-supplied REPO switch. If a customer-
supplied REPO switch is used, it may not activate in the same manner; refer to the
operating instructions provided with the switch.
To use the REPO switch:
1. Firmly push the red pushbutton until it locks into place. The switch latches into the activated state (see
Figure 77 ).
The rectifier, inverter, and battery switchgear open, and the power module is turned off immediately,
without asking for verification.
UPS Operating Instructions