John Brady

Finally got our system up and running as follows (after lots of con fusion and mistakes!) 2 Strings X 10 panels: String 1 - 10x275W panels - 38.6 VOC String 2 - 10x270W panels - 37.8 VOC However only getting 3.07kW output. VOC readings - String 1 = 346 - String 2 = 336. Max cable length 12 m x 8mm2. All joints now crimped and heat shrink insulated. many suggestions on how to check/test?

Thanks for the response. Lots of life getting in the way of overcoming problems in completing our installation but need to get out from under the Eskom. Attached photo of inverter label. Panel WP 270 VoC 38.7. isc 9.12A. Vmp 30.95. Imp 8.37A. Think we have a problem with dirty/corroded M40 couplings and busy replacing with crimps and heatshrinks. Will finish tomorrow and report.

We have 24 260 wp panels installed with 2 combiner boxes to 2 Mecer 5 kW inverters installed in parallel. Currently due to various constraints, we have 12 panels connected to one of the combiner boxes in 3 strings of 4 panels in series. These are showing Voc of 139v but wildly swinging Amperage from zero up to only 7 Amps and barely charge our bank of 6 Mecer M3000 batteries. Tried to use the system in PV mode during recent load shedding but it could not support the relatively small load requirements of 1.1kW and went to battery mode. I guess our question is why we cannot seem to get the PV system to produce this relatively modest load?

We have 24 260 wp panels installed with 2 combiner boxes to 2 Mecer 5 kW inverters installed in parallel. Currently due to various constraints, we have 12 panels connected to one of the combiner boxes in 3 strings of 4 panels in series. These are showing Voc of 139v but wildly swinging Amperage from zero up to only 7 Amps and barely charge our bank of 6 Mecer M3000 batteries. Tried to use the system in PV mode during recent load shedding but it could not support the relatively small load requirements of 1.1kW and went to battery mode. I guess our question is why we cannot seem to get the PV system to produce this relatively modest load?

I have the “correct” cable supplied with the kit but it still produces a fault indicator on the master battery and a 06 fault on the inverter. Does anyone have the correct pin configuration for this cable?