PowerWalker VFI 20000-40000TAP 3/3 BI, Руководство пользователя

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6.4.5 Single UPS Shutdown
To shut down the UPS:
1. Open the MOB for the UPS being shut down.
2. Select the CONTROLS symbol on the main menu bar. The System Control screen is displayed.
3. If not already selected, select UPS on the System Control screen.
4. On the UPS System Control screen, select the NORMAL UPS OFF command, then press the RETURN
pushbutton.
The output and bypass backfeed relay open, and the power module is turned off on the UPS being shut
down.
Logic power remains on.
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
5. Open the UPS input and the bypass feeder circuit breakers for the UPS being shut down.
6. If EBCs are installed, open all battery breakers
The UPS is now completely shut down.
6.4.6 Single UPS Restart
To restart a single UPS from a shutdown state:
1. Close the MOB for the UPS being restarted.
2. Close the UPS input and bypass feeder circuit breakers for the UPS being restarted.
3. Close the input switch.
4. If the UPSs are wired for dual input, close the bypass input switch.
5. Close the output switch.
6. Close the external battery breakers.
7. On the UPS being restarted, observe the UPS control panel display becoming active, indicating logic
power.
8. Verify no alarms are active on the UPS being restarted.
9. On the UPS being restarted, select the CONTROLS symbol on the main menu bar. The System Control
screen is displayed.
10. If not already selected, select UPS on the System Control screen.
11. On the UPS System Control screen, select the UPS OFF NORMAL command, then press the RETURN
pushbutton.
12. 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 output contactor closes and the static switch turns off.
Power is now supplied to the critical load in Standard Normal mode along with the other UPSs online. It
takes approximately one minute for the UPS to achieve Standard Normal mode.
The Normal status indicator is illuminated.