AEG PV.500-MH manual 34 of, 80000043212 BAL

Protect PV.500-MH Operating Instructions

The insulation resistance detected and the two signals are sent to the equipment control. The insulation resistance is displayed as a measured value. Signalling faults are generated from the two isometer signals ( Chapter 6).

Sequence control behaviour differs depending on which solar cells are connected. The solar cells do not need to be earthed for op- eration with monocrystalline or polycrystalline solar cells. In this case, insulation measurement is always active.

For operation with thin-film solar cells, the solar cells must be earthed. In this case, insulation measurement is not active during earthing.

Insulation measurement sequence control features a "Mainte- nance mode". This mode can only be activated for thin-film solar cells. Activating this mode disconnects earthing. This can be useful when mowing areas where solar panels are installed, for example.

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