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7
Shutdown
Shutdown of a unit
Modular UPS with external
maintenance bypass:
◗ all the UPSs shut down:
◗◗ green "load protected" light 5 goes
off,
◗◗ red "load not protected" light 2 on
the control panel of each unit goes on,
◗◗ orange "operating problem" light 3
on the other units goes on, all shut
down due to the overload.
Frequency converter:
◗ if the system is redundant, i.e. the
other parallel-connected inverters can
supply the load on their own, the
inverter shuts down:
◗◗ green "load protected" light 5 goes
off,
◗◗ red "load not protected" light 2
lights on the control panel of the line;
The load is not affected in that the other
inverters continue to supply it normally;
◗ if the system is not redundant, all the
inverters shut down;
◗◗ green "load protected" light 5 goes
off,
◗◗ red "load not protected" light 2 on
the control panel of each line goes on,
◗◗ orange "operating problem" light 3
on the control panel of the other lines
goes on, all shut down due to the
overload.
Proceed in the following order:
◗ open battery circuit breaker QF1;
◗ open Mains 1 input switch Q1;
◗◗ the rectifier/charger shuts down,
◗◗ all control panel lights go off because
the device is powered down.
Note:
In a frequency converter without a
battery, rectifier/charger shutdown
automatically results in inverter
shutdown.
Shutdown of an rectifier/charger
Except in frequency converters without
a battery, it is recommended not to stop
the rectifier/charger because the
battery will no longer be charged.
Except in the case of a test of the
inverter on battery power, the rectifier/
charger should be shutdown after the
inverter to avoid unnecessary battery
discharge.
Shutdown of an inverter
◗ press the "inverter off" button 7 on
the control panel for 3 seconds;
Single-unit UPS
◗◗ green "load protected" light 5 goes
off,
◗◗ red "load not protected" light 2 on
the control panel goes on,
◗◗ the inverter stops;
◗ if transfer to Mains 2 conditions are
correct, the inverter shuts down and the
load is transferred to Mains 2;
◗ if transfer to Mains 2 conditions are
not correct, the inverter does not shut
down;
◗◗ special action on the hidden control
panel is required to force inverter
shutdown,
◗◗ to force inverter shutdown, press
simultaneously the security button 14
and button 5 "Forced inverter
shutdown" 17 on the hidden control
panel,
◗◗ the load is transferred to Mains 2
with a 0.8 second interruption in the
supply of power.
Multi-bypass modular UPS:
◗ the UPS shuts down (the other
parallel-connected unit can supply the
entire load):
◗◗ green "load protected" light 5 goes
off,
◗◗ red "load not protected" light 2 on
the control panel goes on.
The load is not affected and continues
to be supplied by the other unit.
Parallel UPS with SSC:
◗ if the system is redundant, i.e. the
other parallel-connected inverters can
supply the load on their own, the
inverter shuts down:
◗◗ green "load protected" light 5 goes
off,
◗◗ red "load not protected" light 2
lights on the control panel of the line.
The load is not affected in that the other
inverters continue to supply it normally;
◗ if the system is not redundant and
the transfer to Mains 2 conditions are
correct, all the inverters shut down;
◗◗ green "load protected" light 5
goes off,
◗◗ red "load not protected" light 2
lights on the control panel of each line,
◗◗ orange "operating problem" light 3
on the control panel of the other lines
goes on (all shut down due to the
overload),
◗◗ the load is transferred to Mains 2
without an interruption in the supply of
power;
◗ if the system is not redundant and
the transfer to Mains 2 conditions are
not correct, the inverter does not shut
down;
◗◗ special action on the hidden control
panel is required to force inverter
shutdown,
◗◗ to force inverter shutdown, press
simultaneously the security button 14
and button 5 "Forced inverter
shutdown" 17 on the hidden control
panel,
◗◗ the load is transferred to Mains 2
with a 0.8 second interruption in the
supply of power.
