Troubleshooting; Technical Specifications - Offgridtec PWM Pro Series Manual

6. Troubleshooting

Fehler Mögliche Gründe
The LCD is off PV – no connection
during daytime
when sunshine falls
on PV modules
properly
Wiring correct – no 1) battery voltage
display below 9V
2) PV-voltage below
battery voltage
interface
flashes
battery over voltage
interface
flashes battery
over discharged
interface
flashes
battery overheating
interface
over load or short
flashes
circuit
Fehlerbehebung
Check if all connections are
correct and firm.
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.
Check if the battery voltage is
higher than OVD point (over
voltage disconnect voltage)
and disconnect the modules.
When the battery voltage is
restored to or above LVR point
(low voltage reconnect
voltage), the load will recover
The controller will
automatically turn the system
off and restarts after a cool
down to 50°C.
Please reduce the number of
electric equipment or check
the load's connection.

7. Technical Specifications

PWM
12/24V 10A
Nominal voltage
Battery input
voltage
Rated current 10A
Max. PV voltage 12V batt: 22V PVmax / 24V batt: 50V PVmax
Temperature
compensation
coefficient
Self-consumption
Charge circuit
voltage drop
Discharge circuit
voltage drop
Operating
environment
temperature
Relative humidity
Enclosure
Grounding
Dimensions (mm) 132x84.6x39.7
Mounting 120x56
dimensions (mm)
Mounting hole
size
Terminals 4mm2
Net weight 0.18kg
* controller performance might drop slightly at increased ambient
temperature
PWM PWM
12/24V 20A 12/24V 30A 12/24V 45A
12/24VDC Auto
9~32V
20A 30A
-3mV/℃/2V（25℃）
≤8.1mA(12V);≤6.5mA(24V)
≤0.29V
≤0.16V
-25℃～+55℃*
≤95% (N.C.)
IP30
COMMON POSITIVE
149x94.1x461 177.5x106.6x
194x118.4x63.8
46
137x60 165.5x70 185x90
Φ4.5mm
10mm2 16mm2
0.26kg 0.33kg
194x118.4x63.8
PWM
45A
16mm
2