Powerware 9355 - Manual (Page 57)

EATON Powerware ® 9355 Parallel UPS (10/15 kVA) User’s Guide S 164201601 Rev A www.powerware.com 51
Chapter 9 Parallel Bypass
To switch the parallel UPS to maintenance bypass from Normal mode:
1. From any UPS, set the system to internal Bypass mode:
S Using the button on the front panel display, scroll to the Control
menu option and press the button.
S Press the button to select the Go to Bypass Mode option.
The and indicators illuminate, indicating the UPS system
is operating in Bypass mode.
2. Switch the bypass breaker on the parallel tie cabinet to the ON
position.
3. Switch the UPS breakers on the parallel tie cabinet to the OFF
position.