Ups Complete Shutdown; Auto Startup; Ups Monitoring - Liebert UHA1R-0100 User Manual

44 Chapter 5 UPS Operation Instructions
3. Wait until the UPS operates in Bypass mode, and open the maintenance bypass MCB on the front panel of the
POD.
4. Press and hold the ON/SILENCE key for more than one second, the UPS will transfer to the Inverter mode.

5.8 UPS Complete Shutdown

For the UPS system equipped with POD, if you need to turn off the UPS completely, transfer the UPS to the
Maintenance Bypass mode from the Inverter mode according to the procedures in 5.7.7 Transferring UPS To
Maintenance Bypass Mode From Inverter Output Mode, to ensure that the use of the load during UPS power-off will
not be affected. If the load needs no power supply, open the maintenance bypass MCB directly, as shown in
Figure 5-8.
For the UPS system equipped with power supply by user, if you need to isolate the UPS from AC power, open the
external input MCB.
To avoid physical injury, turn off the maintenance power.

5.9 Auto Startup

In case of mains failure, the UPS will supply power to the load through the battery, until the battery discharges to the
end-of-discharge (EOD) voltage, and the UPS will terminate the output.
The UPS will restart automatically and restore the output power supply after meeting the following conditions.
 The mains restores after battery EOD
 The UPS EOD Auto Start function is set
1. The EOD Auto Start function is set for the UPS products by default if there is no special customized requirement.
2. If the Auto Start function is not set, you can start the UPS manually by pressing the ON/SILENCE key.

5.10 UPS Monitoring

For the operation methods of the UPS background monitoring, refer to SiteMonitor monitoring software delivered with
the UPS.
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Figure 5-8 Configuration of single UPS with external maintenance bypass
Liebert ITA 10kVA UPS User Manual
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