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34006452EN/AC - Page 23
4. Start-up
4.1 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:
– red "load not protected" light on the control panel goes on,
– the rectifier/chargers automatically starts;
– close Mains 2 input Q4S:
– close inverter output switch Q5N:
– close battery circuit breaker QF1:
– open maintenance bypass switch Q3BP:
– press the inverter on button on the control panel:
green "load protected" light 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 goes off,
green "load protected" light remains on, without blinking.
Q1 Q4S Q3BP Q5N
OFF
ON
(0)
(I)
OFF
(0)
ON
(I)
OFF
(0)
2
Q1 Q4S Q3BP Q5N
OFF
ON
(0)
(I)
ON
(I)
ON
(I)
OFF
(0)
Q1 Q4S Q3BP Q5N
OFF
ON
(0)
(I)
ON
(I)
ON
(I)
ON
(I)
QF1
OFF
ON
(0)
(I)
Q1 Q4S Q3BP Q5N
ON
OFF
(I)
(0)
ON
(I)
ON
(I)
ON
(I)
6
I
+
!
!
O
6
5
2
5