MGE UPS Systems Galaxy PW - Manual (Page 22)

14
shutdown of the inverter
■ press the "inverter OFF" button 8 on
the control panel for three seconds (see
figure 19).
single-UPS unit
■ the green "inverter" light 4 on the con-
trol panel goes off;
■ the green "static-bypass" light 3 goes
on;
■ the inverter stops;
■ if bypass AC source (Mains 2) transfer
conditions are satisfied, the inverter shuts
down and the load is transferred to the
bypass AC source;
■ if bypass AC source (Mains 2) transfer
conditions are not satisfied, the inverter
does not shut down. The message
"MAINS 2 OUTSIDE TOLERANCES,
TRANSFER DISABLED" is displayed.
parallel UPS unit
■ if the system is redundant, i.e. the other
parallel-connected inverters can supply
the load on their own, the inverter shuts
down and the green "inverter" light 4
goes off.
The load is not affected in that the other
inverters continue to supply it normally;
■ if the system is not redundant, the other
inverters go to overload status.
If overload conditions are overrun, the
load is transferred to the bypass AC
source:
❏ the green lights 3 turn green,
❏ the green "inverter" light 4 goes off.
shutdown of a
rectifier/charger
It is recommended not to stop the rectifi-
er/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.
Proceed in the following order:
■ open battery circuit breaker QF1;
■ open normal AC input circuit breaker
Q1:
❏ the rectifier/charger shuts down,
❏ the green "rectifier/charger" light 1
goes off.
Shutdown
shutdown
Galaxy PW TM 100 to 225 kVA