MGE UPS Systems Galaxy PW - Manual (Page 38)

30
battery maintenance
Consult the instructions supplied by the
battery manufacturer. Below are a few
general indications:
■ sealed lead-acid batteries: these bat-
teries require no maintenance, but check
the terminals of each cell from time to time
and clean if necessary;
■ vented lead-acid batteries:
❏ check the electrolyte level regularly and
add water if necessary,
❏ check the voltage of each cell to deter-
mine if it is necessary to equalize the bat-
tery,
❏ check the terminals of each cell and
clean if necessary.
visual check
■ Power down the system prior to any
maintenance operations.
Note: in redundant parallel UPS systems
the check may be carried out successively
on each UPS unit without interrupting the
load. In other configurations, the load
must be supplied via the maintenance
bypass (see "maintenance bypass" in the
"Alarm" section);
■ clean the system regularly, particularly
the air filter inlet and outlet grills. Check
that the air circulates freely in the cabi-
nets. Use a vacuum cleaner if necessary;
■ check that nothing hinders the ventila-
tion at the top and at the back of the sys-
tem.
functional check
■ Check that lights 1 , 2 and 3 on the
control panel are not red, to avoid an
interruption in the supply of power to the
load due to incorrect transfer conditions or
a battery problem;
■ press the "inverter OFF" button and
check that the buzzer and control panel
lights function correctly (see the section
on operating modes in the introduction);
■ press the "inverter ON" button and
check again that the control panel lights
function correctly;
■ run a transfer to battery test. With the
inverter on, open input circuit breaker Q1.
The orange "battery" light on the control
panel should light. After two minutes on
battery power, close input circuit breaker
Q1. The rectifier/charger should automati-
cally restart and the orange "battery" light
on the control panel should go off;
■ in parallel systems, run these tests on
each UPS unit.
CAUTION
Battery maintenance is
undertaken with the system
powered up. Operations must
be carried out in accordance
with applicable safety regula-
tions by qualified personnel
using insulated tools, gloves
and safety goggles.
Batteries contain danger-
ous substances that will harm
the environment if thrown
away. If you change the bat-
teries yourself, call on quali-
fied organizations for battery
recovery and recycling.
Maintenance
Pb Pb
Galaxy PW TM 100 to 225 kVA