Liebert 610 manual Operator controls, typical system, 100kVA 500kVA 1000kVA Description Function

Operation

Figure 3 Operator controls, typical system
100kVA-
500kVA
2	5	4
1000kVA

3

6

7

8

1

Item	Description	Function
1	Input Circuit Breaker	This manually operated circuit breaker provides power to the UPS module rectifier. It is
	(CB1)	located in the transformer cabinet of certain 500kVA and all 625, 750 and 1000kVA modules.
2	Control Disconnect	These two fuses provide power to the controls. They are normally closed (ON). Turn Control
	(behind door)	Power OFF (by opening the two fuseholders) only for maintenance procedures.
3	Operator Control Panel	Refer to Figure 4 for controls available on this panel.
	Bypass Reset Switch	Press this button to reset the transfer relays during start-up after an Emergency Power Off
4	(behind door above
		shutdown. You must press this button before resetting the Close B.P. jumper (Item 5).
	breakers)
	Close B.P. Switch	Press switch to close the bypass circuit breaker during a start-up procedure, if it remains
		open after a shutdown procedure. Refer also to 3.4.1 - Start-Up Procedure and Bypass
5	(behind door, on main
		Reset Switch (Item 4 above). Note that the static switch disconnects must be open for this
	logic board)
		jumper to close the bypass breaker.
	Interlock Button (on rear	Press this button to make authorized changes to any site parameter protected by the Security
6		Access function. These include the time, date, auto-dial phone number and other site
	of Control Panel)	parameters.
7	Bypass Circuit Breaker	This motorized circuit breaker connects the critical load to the bypass line.
	(behind control panel)
8	Output Circuit Breaker	This motorized circuit breaker connects the critical load to the UPS inverter output.
	(behind control panel)

Refer also to Figure 2 for a typical system one-line diagram.

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