Eaton 93PM Series - Page 119

Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07 107
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NOTE 1 If an Integrated Battery Cabinet (IBC) is installed, refer to its installation and operation
manual, listed in Chapter 1 Introduction, For More Information section, for IBC
battery breaker location.
NOTE 2 If a Sidecar Integrated Accessory Cabinet (SIAC) or an Integrated Accessory Cabinet
(IAC) is installed, refer to its installation and operation manual, listed in Chapter 1
Introduction, For More Information section, for operating instructions.
NOTE 3 This unit is a three-wire device. The loss of a single input phase will be considered a
complete loss of input power and discharge the battery to provide power to the load.
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To start the UPS system:
1. Close all Module Output Breakers (MOBs).
2. Close the UPS input feeder circuit breaker.
3. If dual feed, close the UPS bypass feeder circuit 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.
7. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
8. Tap the GO ONLINE button.
9. 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, all UPS inverter switchgear close and the static switches turn off.
Power is now supplied to the critical load in dual conversion mode from all UPSs. It takes approximately
one minute for the UPSs to achieve the dual conversion mode.
The Normal status indicator is illuminated.
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If the inverter output of the UPS is not available and the critical load needs to be energized:
CAUTION
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
1. Close all Module Output Breakers (MOBs).
2. Close the UPS input feeder circuit breaker.
3. If dual feed, close the UPS bypass feeder circuit 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.
7. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
8. Tap the GO TO BYPASS button.
UPS Operating Instructions