6. Troubleshooting
Fehler
Mögliche Gründe
Fehlerbehebung
The LCD is off
during daytime
when sunshine falls
on PV modules
properly
PV – no connection
Check if all connections are
correct and firm.
Wiring correct – no
display
1) battery voltage
below 9V
2) PV-voltage below
battery voltage
1) Please check the voltage of
battery. At least 9V voltage to
activate the controller.
2) Check the PV input voltage
which should be higher than
battery’s.
interface
flashes
battery over voltage
Check if the battery voltage is
higher than OVD point (over
voltage disconnect voltage)
and disconnect the modules.
interface
flashes
battery
over discharged
When the battery voltage is
restored to or above LVR point
(low voltage reconnect
voltage), the load will recover
interface
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battery overheating
The controller will
automatically turn the system
off and restarts after a cool
down to 50°C.
interface
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over load or short
circuit
Please reduce the number of
electric equipment or check
the load’s connection.
7. Technical Specifications
PWM
12/24V 10A
PWM
12/24V 20A
PWM
12/24V 30A
PWM
12/24V 45A
Nominal voltage
12/24VDC Auto
Battery input
voltage
9~32V
Rated current
10A
20A
30A
45A
Max. PV voltage
12V batt: 22V PVmax / 24V batt: 50V PVmax
Temperature
compensation
coefficient
-3mV/
℃
/2V
（
25
℃
）
Self-consumption
≤8.1mA(12V);≤6.5mA(24V)
Charge circuit
voltage drop
≤0.29V
Discharge circuit
voltage drop
≤0.16V
Operating
environment
temperature
-25
℃
～
+55
℃
*
Relative humidity
≤95% (N.C.)
Enclosure
IP30
Grounding
COMMON POSITIVE
Dimensions (mm)
132x84.6x39.7
149x94.1x461
177.5x106.6x
46
194x118.4x63.8
Mounting
dimensions (mm)
120x56
137x60
165.5x70
185x90
Mounting hole
size
Φ4.5mm
Terminals
4mm2
10mm2
16mm2
16mm
2
Net weight
0.18kg
0.26kg
0.33kg
194x118.4x63.8
* controller performance might drop slightly at increased ambient
temperature
