22
Function display / troubleshooting
LED H1 (H2) shows the status of battery 1 (battery 2).
Display
Cause / rectification
LED flashes in
longer intervals
Check connections from the device to
the battery and solar module, ensure
that they are connected to the right
terminals.
Test the fuse, solar module and the
battery.
LED flashes
Battery is fully charged.
LED shines.
The battery is being charged.
LED flashes in
short intervals
The battery is not being charged.
If necessary, replace faulty battery.
LED does not shine Battery not connected or over-voltage
If this does not solve the problem, please contact the Truma
Service.
Maintenance
The power supply must always be disconnected before
performing any maintenance work. For example cover
the solar module with a cardboard box.
Clean the device with a dry and lint-free cloth.
Technical data
* Double the values of the 12 V – to work out the 24 V values.
Electrical values
Operating voltage
Automatic recognition
12 V
24 V
max. input voltage
30 V
50 V
Voltage range *
8 – 15 V
Allowed ambient tempera-
ture range
-35 °C – +55 °C
Allowed storage temperature
range
-35 °C – +80 °C
Self-consumption
4 mA at night
10 mA during charging
PWM frequency, settable
25 Hz, 50 Hz, 100 Hz
Currents
SDC 10
SDC 20
max. module current
constant at 25 °C
10 A
(approx.
150 Wp)
20 A
(approx.
300 Wp)
max. output current
constant at 25 °C
10 A
20 A
Battery capacity
50 – 100 Ah
50 – 200 Ah
