Phoenix Contact UM IA RAD-SOL-SET-24 Serie Manual De Instrucciones página 154

RAD-SOL-SET-24-...
8-6
PHOENIX CONTACT
Check the terminals directly on the solar panels if the voltage is low or equal to zero.
WARNING: Risk of electric shock when fuses are installed
When carrying out any work on the solar panel, loads or battery, make sure that fuses for
the solar system are not installed in the fuse terminal blocks of the control cabinet
electronics.
Before carrying out any work on the solar system, remove the three fuses from the fuse
terminal blocks in the control cabinet in the specified order (1. Solar panel, 2. Battery,
3. Loads). This will isolate the voltage sources from the circuit.
6. Check whether the maximum permissible load for your location has been exceeded
(see "Performance of the solar system" on page 1-8).
7. Check whether there are excessive voltage drops between the charge controller and
battery. These voltage drops would result in inadequate charging of the battery.
8. Check whether the battery voltage is reduced during the night without the load
connected. The battery may possibly be damaged if it is unable to retain the voltage.
9. Measure the voltage of the solar panel and the battery at the terminal blocks of the
SunSaver charge controller.
If the voltages at the terminals are the same (within some tenths of one volt), the solar
panels are charging the batteries.
If the photovoltaic voltage is almost as low as the non-load voltage of the cells, and the
battery voltage is low, the charge controller does not charge the batteries and might be
damaged.
8.6.2 Battery voltage too high
1. Check whether the maximum end-of-charge voltage of the battery has been exceeded
(see page 10-2).
2. Check whether the correct battery type (sealed battery or flooded battery) has been
selected at the charge controller (see "Connecting the charge controller" on page 8-3).
3. Check whether all cables have been connected correctly and securely.
4. Disconnect the solar panels.
Disconnect the cable (e .g., marked with red insulating tape*) briefly from the positive
pole [+] of the battery and reconnect it (with the solar panel still disconnected). The
green "CHARGING" LED should be off.
Measure the voltage at the SOLAR terminals of the charge controller (with the solar
panels still disconnected). If the green "CHARGING" LED is on or if the battery voltage
is present at the SOLAR terminal blocks, the charge controller may possibly be
damaged.
* various labelling systems possible
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