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KraftPowercon Sweden AB, Hjalmar Petris väg 49, 352 46 Växjö, Sweden, Tel: 0470-705200, Fax: 0470-705201,
www.kraftpowercon.com
4.4 I/O UNIT
The I/O unit contains an adapter for the external connections required for the monitoring unit.
It is fitted directly on the back plate together with the terminal blocks for AC input and DC
output.
4.5 FUNCTIONS
4.5.1 General
Only the most important functions are specified here. For more information, see the Manual for
monitoring unit PCM2.
4.5.2 Float charging
Float charging is the normal operating mode determined by the battery. The voltage level is to
be set according to the battery manufacturer instructions.
For more information, see the Manual for monitoring unit PCM2.
4.5.3 Equalizing charging
Equalizing charging means charging with raised voltage level over a limited period. It is used
partly for the initial charge, and partly for equalizing cell voltages if spread has occurred.
For more information, see the Manual for monitoring unit PCM2.
WARNING: Generally, batteries of VR-type (vent regulated) should not be subject to equalizing
charging. For some battery types equalizing charging could even be harmful to the batteries. Always
follow the instructions stated by the battery manufacturer.
4.5.4 Battery circuit test
A battery circuit test is automatically carried out at optional intervals (normally once a day).
The test involves checking that the entire battery circuit, i.e. not only the battery block is in
working order.
For more information, see the Manual for monitoring unit PCM2.
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