DCW20
User Manual rev. 5
Page 22/34
4.2.8 Battery float voltage
Default value
Range
Resolution
10V
10…58V
0.1V
Unit
LCD name
Modbus address
Volts
Bat. float U
0x1013
The maximum voltage applied to the battery once
it’s fully charged. See §3.1.3 for details about the
use of this parameter on the different charging algorithms.
4.2.9 Battery low voltage
Default value
Range
Resolution
5V
5…58V
0.1V
Unit
LCD name
Modbus address
Volts
Bat. low U
0x1014
Threshold for
“Battery low
”
alarm (§4.4.2.9).
4.2.10 Battery deep discharge voltage
Default value
Range
Resolution
5V
5…58V
0.1V
Unit
LCD name
Modbus address
Volts
Bat. deep disch. U
0x1015
Threshold for the
“
Battery deep discharged
”
alarm (§4.4.2.10).
4.2.11 Battery max. discharge current
Default value
Range
Resolution
21A
5…21A
0.1A
Unit
LCD name
Modbus address
Amperes
Bat. max. disch. I
0x1016
During backup the DCW20 limits the maximum discharge current to this value reducing the output
voltage if necessary.
4.2.12 Battery capacity - Supercap capacitance
Default value
Range
Resolution
1Ah or 1F
1…200Ah or F
0.1Ah or F
Unit
LCD name
Modbus address
Ampere hours or Farad
Bat. capacity
0x1017
Nominal capacity (Ah) of the installed battery or capacitance (F) in case a Supercapacitor is installed.
This parameter is used to calculate the battery State of Charge (SoC) during charge and discharge.
4.2.13 Battery min. temperature
Default value
Range
Resolution
-40°C
-
40…60°C
1°C
Unit
LCD name
Modbus address
Celsius
Bat. min. T
0x1018
Threshold for the
“
Battery under temperature
”
alarm (§4.4.2.3).
4.2.14 Battery max. temperature
Default value
Range
Resolution
60°C
-
40…60°C
1°C
Unit
LCD name
Modbus address
Degree Celsius
Bat. max. T
0x1019
Threshold for the
“
Battery over temperature
”
alarm (§4.4.2.4).
DCW20_040-02-700-005-EH-1117