2 . )
Solar Panel (must be connected):
Shade the panels to minimize sparking during connection and to avoid damages due to eventual wrong polarity.
Observe the cable cross-sections (refer to connection plan)!
If several small solar panels are used, they are connected in parallel (refer to connection plan). Partial shading of the panels
results in average higher capacity (see connection plan).
3 .)
Starter Battery „START II“ (Option, can be connected): only MPPT10050/60-DUO
Connect the second charging port to the second battery using the red connection cable (wire cross section 1.5 - 2.5 mm²).
This cable may be longer. In case of non-utilization, this terminal is left free.
If used, the output for starter battery II will be working with reduced voltage and charging current rates. Thus, the valuable
solar power will be supplied to board/solar battery I being more suitable.
However, the vehicles starter battery II will be kept in a condition, that starting will always be possible, even in case of
longer downtimes and during winter operation.
Connection of the negative pole „START II“ is not required, if the negative pole „BOARD I“ is connected to the
vehicle body. Depending on the length of the cable, it may also be connected to the common negative
connection of the solar controller or to the negative pole of „BOARD I“.
4.)
Temperature Sensor (Option, can be connected):
For automatic adaptation and correction of the charging voltage to the battery temperature (temperature compensation).
Mounting:
The thermal contact of sensor and battery "Main I" (inside temperature) should be well. Thus, it should be screwed down
to the negative pole or positive pole of the battery. It is also possible to fasten it at the sidewall centre of the battery casing.
Ensure that the installation place is not influenced by any source of heat (motor block, exhaust, heater etc.).
Connection:
Connect the temperature sensor to the terminal by means of a 2-pole cable (cable cross section 0.5 - 1.5 mm²). The polarity
and cable length is of no importance. The solar controller recognizes the sensor automatically.
Effect:
The temperature-dependent charging voltage of battery I will be adapted automatically to the battery temperature.
The temperature sensor measures the battery temperature. In case of low temperatures (winter operation), the charging
voltage will be increased in order to improve and accelerate full charging of the weak battery.
5)
AES (Automatic Energy Selector)
Particularly in summer, a lot of excess energy might be produced due to strong solar radiation, full batteries and low energy
consumption, which is left unused. The solar controller recognizes this condition and uses the “AES” output to give a signal
to the refrigerator, which will commutate from gas operation to 12 V operation to benefit from the excess energy (gas
saving).
Connection:
Lead a single-pole cable (0.5-1.5 mm²) from the solar controller's terminal “AES” to the refrigerator's terminal „T10“.
Function:
The solar controller recognizes the excess capacity (LED “AES” is lighting). The refrigerator switches from gas operation to
12 V operation. This mode will be kept for at least half an hour to avoid that the refrigerator will be “swinging” between
12 V operation and gas operation.
Should the solar power be still sufficient, the 12 V operation of the refrigerator will be kept.
Should the solar power be insufficient, “AES” will be switched off by the solar controller, the refrigerator will be switched to
gas operation, it will keep this mode for at least half an hour, and the solar power will be used for recharge of the (possibly
slightly discharged) battery. This mode of operation can only be taken into account in case of sufficient efficiency of the
solar panel and under favourable conditions
The LCD display indicates the following values: Battery voltage, charging current, charging
capacity, stored capacity and energy (V, A, W, Ah, Wh)
6 )
LCD
meter
(
Option, can be connected):
