Vertiv ITA-30k00AL3302P00, Руководство пользователя

Страница: 81 / 108

67
Vertiv I Liebert ITA2 30kVA I Manual
5.2.5 Transfer From Maintenance Bypass Mode To Inverter Mode
After UPS maintenance, you can use this procedure to transfer the load from the
maintenance bypass to the inverter.
If the user configures the maintenance bypass switch, the UPS must be manually
transferred to the bypass mode after UPS maintenance and then close the output
switch. Failure to observe this may cause damage to the equipment..
1. Confirm that the baffle of the maintenance bypass switch has been rotated upwards and
firmly.
2. Close the mains input MCB and bypass input MCB on the front panel of the POD. At this
time, the UPS will power on again and operate at bypass mode.
3. Confirm that the UPS has worked in Bypass mode, then close the output MCB on the front
panel of the POD.
4. Open the maintenance bypass MCB on the front panel of the POD. Rotate the baffle of the
maintenance bypass switch to its original position, then fasten the fixing screws.
5. Press the power button on the operation and display panel of the UPS, and the UPS
transfers to Inverter mode.
5.2.6 Adding A Single Unit In Parallel System
Refer to 3.5 Commissioning Parallel System for details.
5.3 UPS Complete Shutdown
For the UPS system with POD, if you need to shut down the UPS completely and make no
effect on the use of the load during the UPS power-off, transfer the UPS from Inverter mode
to Maintenance Bypass mode according to the procedures in
5.2.4 Transferring From Inverter
Mode To Maintenance Bypass Mode. If the power to the load is not needed, open the input
MCB, maintenance bypass MCB and output MCB to shut down the UPS completely. For the
system has been transferred to maintenance bypass system, just open the maintenance
bypass MCB directly, as shown in Figure 5-9.