92
PFX2512_CE
Description of the Function
Unbalance detection function (only when an OP02-PFX is installed)
This function measures the voltages of all the cells in the object under measurement, and detects
the maximum and minimum cell voltages. When the unbalance voltage (the difference between
the maximum and minimum cell voltages) exceeds the set value, an alarm occurs and the output is
turned off. If you have set this as a cutoff condition, the charge / discharge operations stop (they are
cut off ).
The unbalance voltage detection response time is approximately 1 second after the cell voltage
measurement begins.
You can connect up to 12 (when three OP02-PFX units are installed) objects under measurement.
Test Condition Editor
To set the unbalance voltage, use the application software BPChecker3000 .
If the internal resistance of the DUT (battery) is high and the voltage fluctuates greatly during
charge / discharge, this function may not operate correctly. Turn this function off during these
situations.
If you connect to the cells in one of the following ways, the unbalance detection function will not
work properly. Doing so may lead to the abrupt interruption of tests or the generation of alarms.
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Help
Unbalance voltage
Cell voltage
Charge time
Maximum cell voltage
Mimimum cell voltage
Example of the voltage measurement of 6 cells
Connecting to different voltages
(Example of a prohibited connection)
Not connecting sensing cables to both ends of
the cells (Example of a prohibited connection)
Be sure to connect a sensing cable to each
cell. The unbalance detection function only
works on cells of the same type and same
voltage.
The function is affected by the resistance
between the cells and affected by resistance
of the protection switch and it cannot
measure the correct cell voltages.
3.7 V
3.7 V
3.7 V
7.4 V
7.4 V
Protective switch
Summary of Contents for PFX2515
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