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6.3
Single UPS Operation
6.3.1
To start the UPS system:
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 the input and output switches are open.
3.
Verify the bypass input switch is open (Dual Input).
4.
Verify that the maintenance bypass switch is open and the Neutral Switch is closed.
5.
Close the UPS input feeder circuit breaker.
6.
If the UPSs are wired for dual input, close the UPS Bypass input feeder circuit breaker.
7 .
Close the input switch.
8.
If the UPSs are wired for dual input, close the bypass input switch.
9.
If the UPS contains an output switch, close the output switch.
10. Make sure MBS cover is installed.
11. Close the door and secure the latch.
12. Observe the UPS control panel display becoming active, indicating logic power.
13. Verify no alarms are active.
14. Select the CONTROLS symbol on the main menu bar. The System Control screen is displayed.
15. If not already selected, select UPS on the System Control screen.
16. On the UPS System Control screen, select the LOAD OFF
the
RETURN pushbutton.
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. The rectifier and inverter turn on. The inverter continues to ramp
up to full voltage.
Once the inverter reaches full voltage, the UPS output contactor closes and the static switch
turns off. Power 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.
58
Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation
• Note switch operation nomenclature: Open = O = Off, Closed = I = On.
• Refer to the External Battery Cabinet Installation Manual for EBC
battery breaker location.
• The neutral switch here means the external neutral switch installed by user
Starting the UPS in Standard Normal Mode (Default Mode)
NORMAL command, then press
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