APC 9000 User Manual
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 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
red "load not protected" light
goes off,
green "load protected" light
remains on, without blinking.
Q1
Q4S
Q3BPQ5N
OFF ON
(0)
(I)
OFF
(0)
ON
(I)
OFF
(0)
2
Q1
Q4S
Q3BPQ5N
OFF ON
(0)
(I)
ON
(I)
ON
(I)
OFF
(0)
Q1
Q4S
Q3BPQ5N
OFF ON
(0)
(I)
ON
(I)
ON
(I)
ON
(I)
QF1
OFF ON
(0)
(I)
Q1
Q4S
Q3BPQ5N
ON OFF
(I)
(0)
ON
(I)
ON
(I)
ON
(I)
6
I
+
!
!
O
6
5
2
5