Filter
Top Products
E-51028230XT/BG - 37
Battery maintenance
Consult the instructions supplied by the
battery manufacturer. Below are a few
general indications:
◗ sealed lead-acid batteries: these
batteries 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
determine if it is necessary to equalise
the battery,
◗◗ check the terminals of each cell and
clean if necessary.
Caution:
Battery maintenance is undertaken with
the system powered up. Operations
must be carried out in accordance with
applicable safety regulations by
qualified personnel using insulated
tools, gloves and safety goggles.
Batteries contain dangerous
substances that will harm the
environment if thrown away. If you
change the batteries yourself, call on
qualified organisations for battery
recovery and recycling.
Visual check
◗ Power down the system prior to any
maintenance operations.
Note: in redundant, parallel UPS
systems and frequency converters, 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 inlet and outlet grills.
Check that the air circulates freely in
the cubicles. Use a vacuum cleaner if
necessary;
◗ check that nothing hinders the
ventilation at the top and at the back of
the system;
◗ check that all the fans operate
correctly.
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 switch Q1. The
orange "battery" light on the control
panel should light. After two minutes on
battery power, close input switch Q1.
The rectifier/charger should
automatically restart and the orange
"battery" light on the control panel
should go off;
◗ in parallel systems, run these tests
on each UPS unit.
Pb Pb
Maintenance (cont.)