23
Discharging:
Charging:
Fan
<30°C
<30°C
off
30°C
– 35°C
30°C
– 32,5°C
25%
35°C
– 40°C
32.5°C
– 35°C
50%
40°C
– 45°C
35°C
– 37.5°C
75%
>45°C
>37.5°C
100%
Please note for a good circulation, the modules need at least a distance of 5cm between the battery
and the device on both sides.
10 Charging
Charge algorithm is controlled by the battery itself. Either a VARTA-approved charger can be used or
also a customized charger which follows the CANopen standard and the VARTA ASB charger
specification, which is available on request for custom developments. Charging will not start without
CAN communication.
There is a specific area for “User Specific Changeable Parameters” which also includes the charge
current parameters. These parameters can be accessed via CANopen Protocol and SDO transfer. For
changing the charge current, proceed the following steps:
1. Get Write permission:
Write ‘1815dez’ in object 0x2010.1
2. Change Current Value
to e.g. 20A (=20,000 mA) in “Normal Temp Range”:
Write ‘20000dez’ in object 0x3F00.6
3. Change Current Value to e.g. 15A (=15,000 mA)
in “High Temp Range”:
Write “15000dez” in object 0x3F00.7
4. Save values permanent in EEPROM:
Write “7211dez” in object 0x2010.1
Check the Parameters after a Reboot of the battery:
Read object 0x3100.2 and 0x3100.4
11 Error
In case of an unexpected behavior of the battery or if any threshold limit is violated, the battery will
store an internal error event. The LED of the battery will be steady red as long as the operating state
does not change. This means, that the battery will be operating again, if the cause of the error is not
present any more and the battery is turned off and on again. In case of a non-reversible error, the LED
will blink red and the battery cannot be used anymore.
If an error occurs while charging, the charger will be commanded to shut down the charge current and
the Charge FET will be opened to prevent any further charging. If an error occurs while discharging,
the discharge FET will be opened to prevent any further discharging.
The battery saves the record of every individual error in the internal memory which can be read via
CAN from object 0x201A sub 1 to sub 64. The history of the error which occurred can be read from
object 0x2018 sub 1 to sub 16 which stores the last 16 events.
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