Tripp Lite SU60KX manual Switching from Manual Bypass to Normal Mode Parallel UPS

1 Basic Operation (continued)

1.6 Start-Up, Shutdown and Bypass (continued)

1.6.10 Manual Bypass Procedure (Parallel UPS) (continued)

•If the UPS systems have external battery cabinets connected, switch off the external battery cabinet circuit breaker switch of each battery pack.

•In this mode, only the output circuit breaker switch and the terminal block contain hazardous voltage, allowing qualified service personnel to perform maintenance or repair. Note: Qualified service personnel may prefer to de-energize the UPS systems completely, depending on local codes and the nature of the maintenance or repair.

A

5

B

A

6

1.6.11 Switching from Manual Bypass to Normal Mode (Parallel UPS)

•If the UPS systems have external battery cabinets connected, switch off the external battery cabinet circuit breaker switch of each battery pack.

•Switch on the bypass input circuit breaker switch and the output circuit breaker switch of each UPS system.

•Confirm that both UPS systems are shut down, then switch off the manual bypass input circuit breaker switch of each UPS system. The LCD screen will read “ON AUTO BYPASS.”

•Switch on the main input circuit breaker switch of each UPS system.

•Press the ON button of the first UPS systems for 3 seconds (until you hear a beep), then release the button. Press the ON button for the second UPS system for 3 seconds (until you hear a beep), then release the button. When the inverter of each UPS system is operating normally, they will switch to online (normal) mode at the same time.

			A
Output	Manual	Bypass	Main
4	Bypass	Input	Input

A

1

B		A
Output	Manual	Bypass	Main
2	Bypass	Input	Input

	A
Output	Manual	Bypass	Main
3	Bypass	Input	Input
			A

5

24