Section 4 - Samlexpower Evolution EVO-1212F Owner's Manual

SECTION 3 |
3.15 BATTERY TEMPERATURE SENSOR FOR LEAD ACID BATTERIES
Lead Acid Battery charging voltages are required to be compensated based on the temperature
of the battery cells. Hence, Battery Temperature Sensor Model EVO-BCTS has been provided.
Please see constructional and fitment details at [Fig 2.5(a)] and [Fig 2.5(a)] respectively.
The sensor head contains a Negative Temperature Coefficient (NTC) Resistor with 2 output
wires: "NTC+" is connected to Pin 4 of the RJ-45 Plug and "NTC -" is connected to Pin 5 of
the RJ-45 Plug. The RJ-45 Plug is required to be connected to the RJ-45 Jack (6, Fig 2.1). The
Temperature Sensor is used to ensure optimum charging of Lead Acid Batteries by modifying
the charging voltages based on the battery temperature. In addition to compensating Absorp-
tion, Float and Equalization voltages, the voltage thresholds of parameters "LOW VOLTAGE
ALARM", "BATTERY LOW VOLTAGE", "RESET VOLTAGE", "BATTERY OVER VOLTAGE" and
"RESET TO BULK" are also temperature compensated. Temperature compensation will be car-
ried out over temperature range of -20°C to +60°C. Table 6.2 shows the programmable range.
Default setting for the Temperature Coefficient of Voltage is -4mV/°C/Cell.
3.16 INSTALLING CONTROL INPUT WIRING FROM LITHIUM BATTERY
MANAGEMENT SYSTEM (BMS)
The Battery Charger Section is designed to charge either Lead Acid Batteries or Lithium Batteries.
Lead Acid Battery charging voltages are required to be compensated based on the temperature
of the battery cells. Hence, Battery Temperature Sensor is required to be connected to the RJ-45
Jack (6, Fig 2.1) as explained at Section 3.15.
Charging voltages of Lithium Battery are not affected by temperature and hence, Battery Tem-
perature Sensor is not required to be used.
For charging Lithium Battery, programmable parameter "BATTERY TYPE" has to be changed
from Setting 0=Lead Acid (Default setting) to Setting 1=Lithium. This programming change
is carried out using optional Remote Control EVO-RC Plus. Pease refer to the following Sections
of EVO-RC-PLUS Manual:
• Screen 22 in Fig 4.2 and Table 4.3
•

Section 4.4.2.22

Pins 4 and 5 of the RJ-45 Jack marked "Battery Temp. Sensor" (6 and 19, Fig 2.1) are required
to be connected to the Normally Open Contacts of relay in the Battery Management System
(BMS) of the Lithium Battery for "Stop Charging or "Stop Inverting" signals. The BMS will close
the Relay contacts as follows:
• To "Stop Charging": Due to (i) overvoltage of individual cell / overall battery pack, or (ii) over
temperature of individual cell or overall battery pack
• To "Stop Inverting": Due to deep discharge to the level of Low Battery Cut Off Voltage
When the Relay contacts in the BMS close, Pins 4 and 5 of RJ-45 Jack will be shorted. The fol-
lowing actions will be activated:
58 | SAMLEX AMERICA INC.
Installation