Sices HS 315, Техническое руководство

Страница: 152 / 255

134 Technical Handbook
Parameter Description Value
P.9642 Capacity (C) at nominal
discharge current Set the rated capacity.
P.9643 Nominal discharge
current. Set the current provided by the manufacturer, if
not provided set 1/20 of P.9642
P.9644 Capacity at discharge
current #2. 0
P.9645 Discharge current #2. 0,00
P.9646 Constant of Peukert. Set the value provided by the manufacturer.
Configuration of HS315, when the battery manufacturer states two real capacities at two given
discharge currents:
Parameter Description Value
P.9642 Capacity (C) at nominal
discharge current Set the first capacity provided by the
manufacturer.
P.9643 Nominal discharge
current. Set the first current provided by the
manufacturer.
P.9644 Capacity at discharge
current #2. Set the second capacity provided by the
manufacturer
P.9645 Discharge current #2. Set the second current provided by the
manufacturer.
P.9646 Constant of Peukert. 1,00
Parameter P.9641 allows to define the rated voltage (Vdc) of the plant battery.
Common lead-acid batteries are made up by 2 Vdc cells, put in series. The voltages suggested
by the battery manufacturer for the charge and the discharge processes are related to a single
cell.
Note: HS315 calculates the number of cells by dividing the rated voltage (48/24/12 Vdc) by 2
Vdc.
HS315 can manage many kinds of batteries, so all the voltage setpoints of HS315 related to
the plant battery are defined as percentage of the nominal voltage P.9641. For example, the
default value for the
“End charge (full) voltage for BULK mode” (P.9676) is 115.0%: for a 48
Vdc battery, it corresponds to 55.2 Vdc. In program function, HS315 shows, in addition to the
programmed value, the real voltage (Vdc), calculated on the programmed nominal voltage.
This way allows to have similar parameters also among different rated voltage batteries.
All the current thresholds of HS315 related to the plant battery are defined as percentage of
the rated capacity. For example, the default value for the
“Charge (full) current in BULK mode”
(P.9675) is 0.30 C/h: for a 500 Ah battery, it corresponds to 150 Ah. In program function,
HS315 shows, in addition to the programmed value, the real current (Adc) calculated on the
rated capacity.
This way allows to have similar parameters also among different capacity batteries.
The battery manufacturer normally provides the suggested voltages and currents for the
charge process (they will be described in the following chapters). Those values are correct
when the battery temperature is 25°C. They should be adjusted to the real battery temperature.
HS315 solves this problem allowing the measurement of the battery temperature using a
PT100 device, connected to terminals JP. Temperature measurement via the JP connector
must be enabled with parameter P.9636:
•
0: Disabled.