Eaton 93E MK2 - Starting the Parallel UPS in Standard Normal Mode (Default Mode)

6.4.1
Starting the Parallel UPS in Standard Normal Mode (Default Mode)
To start the UPS
sy stem:
1.
Unfasten the front door by lifting the latch from the bottom and turning to the right
(counterclockwise) and swing the door open (see Figure 6-1).
2. Verify that all input breakers are open.
3. Verify that the maintenance bypass breakers are open.
4. Close all Module Output Breakers (MOBs).
5. Close all UPS input feeder circuit break ers.
6. If the UPSs are wired for dual input, close all of the UPSs Bypass input feeder circuit break ers.
7. Close all input break ers.
8. If the UPSs are wired for dual input, close all bypass input switc hes.
9. Make sure MBS cover is inst alled.
10. Close the door and secure the latc h.
11. Close all external battery break ers.
12. Observe the UPS control panel display becoming active, indicating logic po w er .
13. Verify no alarms are activ e.
14. Select the CONTROLS symbol on the main menu bar. The System Control screen is displa y ed.
15. If not already selected, select UPS on the System Control screen.
16. On the UPS System Control screen, select the LOAD OFF NORMAL command, then
press the
RETURN
pushbut ton.
17. If requested, enter the Level 1 password. Default password is 1111.
After entering password, UPS will transfer to bypass first and the Bypass LED
will
illuminate. All rectifiers and inverters turn on. The inverters continue to ramp
up to full v
olt age.
Once all
inverters reach full voltage, the UPS output contactor closes and the static switch
turns off. P o w er is now supplied to the critical load in Standard Normal mode. It takes
approximately
one minute for the UPS to achieve Standard Normal mode.
The Normal status indicator is illuminated.
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Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation