Full Product Manual

20
Technical Specifications
Electrical Parameters
Model
CMD-20
CMD-40
Nominal system voltage
12V/24V Auto Recognition
Rated Battery Current
20A
40A
Rated Load Current
20A
20A
Max. PV Input Short Current
25A
50A
Battery Voltage Range
8V-32V
Max Solar Input Voltage
150 VDC @ Minimum Working Temperature
138 VDC @ 25°C
Max. Solar Input Power
12V @ 260W
12V @ 520W
24V @ 520W
24V @ 1040W
Self-Consumption
≤60mA @ 12V
≤30mA @ 24V
Grounding
Negative
Charge circuit voltage drop
≤ 0.26V
Discharge circuit voltage
drop
≤ 0.15V
Temp. Compensation
-3mV/°C/2V (default)
Communication
RSJ45
Battery Charging Parameters
Battery
GEL
SEALED
FLOODED
High Voltage Disconnect
16 V
16 V
16 V
Charging Limit Voltage
15 V
15 V
15 V
Over Voltage Reconnect
15 V
15 V
15 V
Equalization Voltage
-----
14.6 V
14.8 V
Boost Voltage
14.2 V
14.4 V
14.6 V
Float Voltage
13.8 V
13.8 V
13.8 V
Boost Return Voltage
13.2 V
13.2 V
13.2 V
Low Voltage Reconnect
12.6 V
12.6 V
12.6 V
Under Voltage Recover
12.2 V
12.2 V
12.2 V
Under Voltage Warning
12 V
12 V
12 V
Low Voltage Disconnect
11.1 V
11.1 V
11.1 V
Discharging Limit
Voltage
10.6 V
10.6 V
10.6 V
Equalization Duration
-----
2 hours
2 hours
Boost Duration
2 hours
2 hours
2 hours
**Parameters are multiplied by 2 for 24V systems.