1.4 Liability exclusion
We cannot accept responsibility for damage caused by disregarding these instructions. This also applies to the vicinity of
the charging station and even if the damage occurs as a result of malfunctions of the charging station caused by incorrect
installation.
The manufacturer cannot be responsible for supervising compliance with these instructions or monitoring conditions and
methods employed during the installation, operation, use and maintenance of the charging station.
Incorrect installation can lead to damage to property and consequently can endanger persons. Such damage is the
responsibility of the electrician.
We therefore accept no responsibility or liability for any loss, damage or costs resulting from, or in any way connected
with faulty installation, incorrect operation and incorrect use or maintenance.
We likewise accept no responsibility for violations of patent law or the violation of any other rights of third parties that
result from the use of this charging station.
The manufacturer reserves the right to make modifications regarding the product, technical data and assembly and
operating instructions without giving prior notice.
The use of the charging station in areas of application not defined by the manufacturer is the responsibility of the user.
Caution: The guarantee will be invalidated if the equipment is opened or operated in any way
that does not comply with the regulations.
2 Description of operation
The charging station controls the charging process of up to 8 batteries simultaneously, during which the batteries are fully
charged as economically as possible.
The charging station is designed for batteries such as lead storage batteries with liquid electrolyte and with solid
electrolyte (e.g. gel and flow batteries).
The charging station can be used for all photovoltaic modules.
2.1 General description
An intelligent control unit in which the adjustment, operation and display functions are carried out by a microprocessor, is
an essential part of the 8-battery charging station. The batteries are charged as quickly as possible and also
economically, in order of priority according to when they were connected and using the latest charging process. In
addition an MPP-Tracking system enables optimum use to be made of the energy available. The power components
consist exclusively of low loss MOS-FET transistors with a high switch life, guaranteeing a high level of efficiency through
low power loss.
IU characteristic charging is carried out from a battery voltage of 3V with a cut-off voltage that is dependent on the
temperature. Up to 4 channels can be connected in parallel with a corresponding increase in the charging current.
An LCD display supplies all the important information about the current load of the individual channels. A rotary switch is
used for changing over between individual channels. The charging of all channels can also be interrupted by means of
this rotary switch.
The charging equipment has reverse battery, open circuit and short circuit protection at all inputs and outputs. The
battery output is also protected from overload.
2.2 Detailed description
2.2.1 Overcharge protection
The overcharge protection prevents uncontrolled gassing in the battery cells. The development of gas is dependent on
the temperature of the acid and the cell voltage. The control unit therefore monitors the ambient temperature and adjusts
the battery voltage accordingly. The overcharge protection, and therefore also the voltage limitation, is not dependent on
the charge of the battery, as the dissociation of the electrolytes is only dependent on the voltage and the temperature.
This means that charging is already limited, although the battery is not yet fully charged.
Overcharging of a battery leads to uncontrolled gassing. The electrolyte decomposes into oxygen and hydrogen. This
results in harmful oxidation processes and mechanical damage because the gas bubbles pick up active material from the
lead plates.
The uncontrolled gassing is worse still with closed batteries (e.g. gel and flow batteries) where the resulting gas pressure
can destroy the battery housing. Frequent overcharging damages the battery storage capacity.
Operating instructions PL2085 charging station
Page 4
10.12.2007
Содержание PL2085
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