Eaton Powerware 9355 - Internal Bypass Startup; UPS Maintenance Bypass Startup

OPERATION
EATON Powerware
®
9355 UPS (20/30 kVA) Installation and Operation Manual S 164201626 Rev B www.powerware.com
73
Internal Bypass Startup
To start the UPS in internal Bypass mode:
1. Remove the UPS front door (see page 10).
2. Verify that the maintenance bypass switch is in the UPS position (see Figure 51
on page 79).
3. Switch on utility power where the UPS is connected.
4. Switch the UPS input circuit breaker to the ON position.
5. If the optional UPS output circuit breaker is installed, switch the breaker to the
ON position.
6. Replace the UPS front door.
7. Wait for the front panel LCD to illuminate.
The
indicator flashes.
8. Switch the UPS battery circuit breaker to the ON position.
The
indicator stops flashing.
9. Press any button on the front panel display to activate the menu options.
10. Using the
button on the front panel display, scroll to the Control menu option
and press the
button.
11. Press the
button to select the Go to Bypass Mode option.
The
and indicators illuminate, indicating the UPS is operating in Bypass
mode. The load is now powered by utility power.
To switch to Normal mode from internal Bypass mode:
1. Press the
button to select the Go To Normal Mode option.
2. Press the
ESC
button until the Eaton Powerware logo or Mimic screen appears.
UPS Maintenance Bypass Startup
To start the UPS in maintenance bypass:
1. Remove the UPS front door (see page 10).
2. Verify that the maintenance bypass switch is in the BYPASS position (see
Figure 51 on page 79).
3. Replace the UPS front door.
4. Switch on utility power where the UPS is connected.
The load is now powered by utility power.
5. To transfer the load to the UPS, see “Using the UPS Maintenance Bypass
Switch”onpage79.