APC 6739380EN/JC Start-up, System start-up, Single-unit or modular UPS, Multi-bypass modular UPS

Start-up

System start-up

Single-unit or modular UPS

Proceed in the following order:

◗close the upstream switches supplying Mains 1 and 2 power (on the LV switchboard);

◗close Mains 1 input switch Q1.

The system powers up:

Q1 Q4S Q3BP Q5N

OFF	ON	OFF	ON	OFF
(0)	(I)	(0)	(I)	(0)

◗red "load not protected" light 2 on the control panel goes on,

◗the rectifier/chargers automatically starts;

◗close Mains 2 input Q4S:

Q1 Q4S Q3BP Q5N

ON	OFF	ON	ON	OFF
(I)	(0)	(I)	(I)	(0)

◗close inverter output switch Q5N:

Q1 Q4S Q3BP Q5N

ON	ON	ON	OFF	ON
(I)	(I)	(I)	(0)	(I)

◗close battery circuit breaker QF1:

QF1
OFF	ON
(0)	(I)

◗open maintenance bypass switch Q3BP:

Q1 Q4S Q3BP Q5N

ON	ON	ON OFF		ON
(I)	(I)	(I)	(0)	(I)

◗press the inverter on button 6 on the control panel:

!	!	+ –	I	O
			6

◗green "load protected" light 5 blinks for 3 seconds,

◗the inverter starts and if transfer to

Mains 2 conditions are correct, the load is supplied by the inverter,

◗red "load not protected" light 2 goes off,

◗green "load protected" light 5 remains on, without blinking.

Multi-bypass modular UPS

Proceed in the following order:

◗check that switches Q1, Q4S, Q5N and QF1 on the UPSs are open and that switches Q3BP are closed, otherwise set them to the required position;

◗close the upstream switches (on the low-voltage switchboard) supplying power to the Mains 1 and Mains 2 inputs on the UPSs, the load is supplied with power;

◗close the Mains 1 input switch Q1 on the UPSs to supply them with power:

Q1 Q4S Q3BP Q5N

OFF	ON	OFF	ON	OFF
(0)	(I)	(0)	(I)	(0)

◗red "load not protected" light 2 on the control panels of the UPSs goes on:

! ! + – I O

2

◗the rectifier/chargers automatically start;

◗close the Mains 2 input switch Q4S on the UPSs:

Q1 Q4S Q3BP Q5N

ON	OFF	ON	ON	OFF
(I)	(0)	(I)	(I)	(0)

◗close inverter output switch Q5N on the UPSs:

Q1	Q4S	Q3BP	Q5N
ON	ON	ON	OFF	ON
(I)	(I)	(I)	(0)	(I)

◗close battery circuit breaker QF1 on the UPSs:

QF1

OFF	ON
(0)	(I)

◗open maintenance bypass switch Q3BP on the UPSs:

Q1 Q4S Q3BP Q5N

ON	ON	ON OFF		ON
(I)	(I)	(I)	(0)	(I)

◗the load is now supplied by the Mains 2 input via the static switches of the UPSs.

◗press the "inverter on" button 6 on the control panel of each UPSs:

!	!	+ –	I	O
			6

◗green "load protected" light 5 flashes for three seconds,

◗the inverter starts and, if transfer conditions with the Mains 2 input are correct, the load is transferred to the inverter,

◗red "load not protected" light 2 goes off,

◗green "load protected" light 5 on the control panel goes on.

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