Single Ups Operation; Starting The Ups In Double Conversion Mode; Starting The Ups In Bypass Mode - Eaton 93PM Installation And Operation Manual

UPS Operating Instructions
6.3

Single UPS Operation

NOTE 1
NOTE 2
NOTE 3
6.3.1

Starting the UPS in Double Conversion Mode

To start the UPS system:
1. Close the UPS input feeder circuit breaker.
2. If dual feed, close the UPS bypass feeder circuit breaker.
3. If IBCs are installed, close the battery breakers.
4. Observe the UPS control panel display becoming active, indicating logic power.
5. Verify no alarms are active.
6. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
7 . Tap the GO ONLINE button.
8. If requested, enter the Level 1 password. Default password is 1111.
The rectifier and inverter turn on. The inverter continues to ramp up to full voltage.
Once the inverter reaches full voltage, the UPS inverter switchgear closes and the static switch turns off.
Power is now supplied to the critical load in dual conversion mode. It takes approximately one minute for
the UPS to achieve the dual conversion mode.
The Normal status indicator is illuminated.
6.3.2

Starting the UPS in Bypass Mode

If the inverter output of the UPS is not available and the critical load needs to be energized:
In Bypass mode, the critical load is not protected from commercial power interruptions and
abnormalities.
1. Close the UPS input feeder circuit breaker.
2. If dual feed, close the UPS bypass feeder circuit breaker.
3. If the UPS contains a bypass breaker, close the bypass breaker.
4. If IBCs are installed, close the battery breakers.
5. Observe the UPS control panel display becoming active, indicating logic power.
6. Verify no alarms are active.
6-10 Eaton 93PM UPS (60–100 kW, 480V) Installation and Operation Manual P-164000227—Rev 2
If an Integrated Battery Cabinet (IBC) is installed, refer to the Eaton 93PM
Integrated Battery Cabinet Installation Manual listed in paragraph 1.8 for EBC battery
breaker location.
If an Integrated Accessory Cabinet-Distribution (IAC-D) is installed, refer to the
Eaton 93PM Integrated Accessory Cabinet-Distribution Installation and Operation
Manual listed in paragraph 1.8 for operating instructions.
If an Sidecar Integrated Accessory Cabinet-Bypass (SIAC-B) is installed, refer to the
Eaton 93PM Sidecar Integrated Accessory Cabinet-Bypass Installation and
Operation Manual listed in paragraph 1.8 for operating instructions.
CAUTION
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