Name: Eaton 93PR Series
Brand: Eaton
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Eaton 93PR 15-80 kW UPS

Installation and Operation Manual

6.3. System operation

NOTE

Please see Section

4.4

for the information about external battery case installation.

6.3.1. Start the UPS in "Online" mode (default mode

)

The UPS system may be composed of a single UPS unit or a plurality of UPS units connected in

parallel.

Start the UPS system:

1. Check and ensure that the rectier input switch, the output switch and the bypass switch are

closed, and that the maintenance bypass switch is open.

2. Close the external input distribution switch.

3. Close the external bypass distribution switch.

4. Observe the logic power supply indicated on the UPS control panel, and repeat steps 1-3 for

each UPS in the system.

5. Make sure that there is no alarm.

6. Select the “Control” button on the menu, and press “OK” to start the system.

7. Select “System” on the control interface.

8. Click the “Start” button on the system interface, and press “OK” to start the system.

9. Press the “Start” button on the “System Control” page. If automatic bypass is enabled,

the power will be supplied to the critical load via the bypass immediately, the UPS will run

in bypass mode until the inverter is turned on, and the UPS will switch to online mode. If

automatic bypass is disabled, the system will turn on the rectier rst, and then turn on the

inverter when the rectier turns normal. When the rectier is normally turned on, the battery

relay will be turned off automatically. It takes about 20 seconds for the UPS system to reach

online mode.

10. At this point, the UPS is running in online mode, and all UPS status indicator lamps in the

system indicate online mode.

6.3.2. Start the UPS in “Bypass” mode

If the UPS inverter output is unavailable and the critical load needs power supply, the following

steps shall be performed:

CAUTION

When the UPS is in “Bypass” mode, the critical load is not protected if any bypass

interruption or exception occurs.

1. Check and ensure that the rectier input switch, the output switch and the bypass switch are

Eaton 93PR Series User Manual

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