Trautmann GmbH & Co. KG
-Apparatebau
CALIRA
Lerchenfeldstr. 9 87600 Kaufbeuren Tel.08341/9764-0 Fax 08341/67806
Internet: http://www.calira.de Email: [email protected]
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Operating instructions
EVS17/07-DS/IU und EVS17/12-DS/IU
Supply battery charging procedure
Starter battery charging procedure
Driving operation:
Mains operation:
Driving operation:
With the engine on, the generator of the vehicle supplies current to the starter
battery (battery 1). At the same time, the supply battery (battery 2) is switched
in parallel. Thus the supply battery is also charged during driving. Once the
engine is turned off, the battery separation relay separates the starter battery
from the supply battery.
The power supply has electronic protection against polarity inversion. The
charging current is only released once the battery is correctly connected and a
minimum voltage of 1.5 V is applied. Battery voltage is constantly monitored
during the charging process. The charging current is generated via an isolation
transformer and a two-way thyristor rectifier circuit.
During the main charging process, the power supply charges the battery with a
limited current of 7 A / 12 A until the battery voltage reaches 14 V. From 14 V
onward, the charging current drops until battery voltage reaches 14.4 V. A timer
is now activated automatically, and the power supply holds the battery voltage
constant at 14.4 V for 6 hours. On expiry of these 6 hours, the power supply
switches over to holding the charge at a constant voltage of 13.8 V. The
charging process follows the charging characteristic curve IUoU, with minimal
energy loss (for the charging characteristic curve, see Fig. 3).
If the user draws from the battery current that exceeds the rated value, and
battery voltage drops as a result below a predetermined value, the main
charging process automatically starts. This also happens during the six-hour
duration of the timer. The timer is reactivated on completion of the main
charging process.
With the engine on, the generator of the vehicle supplies current to the starter
battery (battery 1). At the same time, the supply battery (battery 2) is switched
in parallel. Thus the supply battery is also charged during driving. Once the
engine is turned off, the battery separation relay separates the starter battery
from the supply battery.
Summary of Contents for EVS 17/07-DS/IU
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