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Page 20 - 6739380EN/JC
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Start-up
◗ close inverter output switch Q5N:
◗ close battery circuit breaker QF1:
◗ open maintenance bypass switch
Q3BP:
◗ press the inverter on button 6 on
the control panel:
◗◗ 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.
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 2 on
the control panel goes on,
◗◗ the rectifier/chargers automatically
starts;
◗ close Mains 2 input Q4S:
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:
◗◗ red "load not protected" light 2 on
the control panels of the UPSs goes on:
◗◗ the rectifier/chargers automatically
start;
◗ close the Mains 2 input switch Q4S
on the UPSs:
◗ close inverter output switch Q5N on
the UPSs:
◗ close battery circuit breaker QF1 on
the UPSs:
◗ open maintenance bypass switch
Q3BP on the UPSs:
◗ 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:
◗◗ 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.
Q1 Q4S Q3BP Q5N
OFF
ON
(0)
(I)
OFF
(0)
ON
(I)
OFF
(0)
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)
Q1 Q4S Q3BP Q5N
OFF
ON
(0)
(I)
OFF
(0)
ON
(I)
OFF
(0)
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)