Operating instructions

UPS Operating Instructions
Eaton 9E UPS (40–60 kVA, 208/220V) Generation 3 Installation and Operation Manual P-164000302—Rev 1 www.eaton.com/powerquality 6-17
6.4 Multiple UPS Parallel Operation
The paragraphs in this section provide operating instructions for a UPS system containing multiple UPSs.
6.4.1 Starting the Parallel UPS in High-Efficiency Normal Mode (Default Mode)
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 all input breakers are open.
3. If the UPSs are EBC capable, verify that all UPS battery breakers are open.
4. Close all Module Output Breakers (MOBs).
5. Close all UPS input feeder circuit breakers.
6. If the UPSs are dual-feed, close all bypass input feeder circuit breakers.
7. Close all input breakers.
8. If the UPSs are EBC capable, close all UPS battery breakers.
9. Close the door and secure the latch.
10. If EBCs are installed, close all battery breakers.
11. Observe the UPS control panel displays becoming active, indicating logic power.
12. Verify no alarms are active.
13. Select the CONTROLS symbol on the main menu bar. The System Control screen is displayed.
14. If not already selected, select UPS on the System Control screen.
15. On the UPS System Control screen, select the LOAD OFF NORMAL command, then press the
RETURN pushbutton.
NOTE 1 If an External Battery Cabinet (EBC) is installed, refer to the Eaton 9E External
Battery Cabinet Installation Manual listed in paragraph 1.7 for EBC battery
breaker location.
NOTE 2 If an Integrated Accessory Cabinet-Tie (IAC-T) is installed, refer to the Eaton 9E
Integrated Accessory Cabinet-Tie and Bypass Installation and Operation Manual
listed in paragraph 1.7 for operating instructions.
NOTE 3 I an Integrated Accessory Cabinet-Tie and Bypass is installed, refer to the Eaton 9E
Integrated Accessory Cabinet-Tie and Bypass Installation and Operation Manual
listed in paragraph 1.7 for operating instructions.
NOTE 4 If an Integrated Accessory Cabinet-Distribution (IAC-D) is installed, refer to the
Eaton 9E Integrated Accessory Cabinet-Distribution Installation and Operation
Manual listed in paragraph 1.7 for operating instructions.
NOTE 5 Start and control system wide functions from UPS 1.
NOTE For each UPS, if two EBCs are installed, EBC 1 must be closed to supply DC input
to the UPS. EBC 2 may be left open, but battery runtime will be reduced.