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Eaton 9395XC UPS 1200kW/1200kVA, 1350kW/1350kVA or 1500kW/1500kVA 164001079—Rev 01
4.
Use the Prev and Next buttons to select the UPMs as applicable and repeat step 3. to turn off their
chargers.
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A UPS Load Off is initiated by selecting the command on the Controls screen. It controls the UPSs' outputs by
powering down the UPS and de-energizing the critical load. The UPSs (including Bypass) remain off until
restarted.
This procedure initiates a UPS Load Off using the Load Off selection.
NOTE
The UPS LOAD OFF controls each UPS independently and does not shut down the
whole distributed bypass system unless all UPSs have been transferred to bypass. To
immediately shut down the whole system, use the REPO switch (see paragraph ).
All power to the critical load is lost when a LOAD OFF command is issued in the following step. You should use
this feature only when you want to de-energize the critical load.
To use the LOAD OFF command:
1.
Press the
Controls
on the navigation menu of the UPS to be shut down. The
System
screen is displayed
(see
2.
On the
Controls
screen, select LOAD OFF.
The Load Off screen is displayed, providing a choice to proceed or abort the shutdown.
When LOAD OFF is selected the input contactor opens and the power module is turned off on the UPS.
3.
If another UPS is to be shut down, proceed to that UPS and repeat Steps 1 through 6.
Do not attempt to restart the system after the Load Off until the cause of the shutdown has been identified and
cleared.
4.
Restart the UPS by following the procedure in paragraph Restart the UPSs by following the procedure in
paragraph
Starting the UPS in Online Mode
or
Starting the Distributed Bypass System in Bypass Mode
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
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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 UPSs immediately, without asking for
verification.
The UPS, including Bypass, remains off until restarted.
Summary of Contents for 9395XC
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