Tripp Lite SU40K, SU80KTV, SU60KTV Switching from Manual Bypass to Normal Mode Parallel UPS

9 – Start-Up, Shutdown and Bypass (continued)

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9-10 Manual Bypass Procedure (Parallel UPS) (continued)

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

5

A

2

3

•6 In this mode, only the output circuit breaker switch A and the
terminal block B contain hazardous voltage, allowing qualified	4
service personnel to perform maintenance or repair. Note:
	B
Qualified service personnel may prefer to de-energize the UPS
systems completely, depending on local codes and the nature of the	A
maintenance or repair.

		5
	6
9-11 Switching from Manual Bypass to Normal Mode (Parallel UPS)		6
•1	If the UPS systems have external battery cabinets connected,
	switch on the external battery cabinet circuit breaker switch A of
	each battery pack.	A
		7
	1	8

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

•3 Confirm that the LCD screens of both UPS systems read “ON MANUAL BYPASS”, then switch off the manual bypass input

circuit breaker switch A of each UPS system. The LCD screen will read “ON AUTO BYPASS”.

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

•5 Press the ON button A 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

B		A		9
Output	Manual	Bypass	Main
2	Bypass	Input	Input	10

	A		11
Output	Manual	Bypass	Main
3	Bypass	Input	Input
			12
			A
			13
5			14

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