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Operation and Installation Manual for SOL10.0-1TR3-E4 and SOL11.0-1TR3-E4
12. Diagnostics and Troubleshooting
EN
LEDs
Display message
Message description
Fault correction
PV1 ISO startup warn
The startup insulation is too low.
► Check the insulation resistance at the DC side of the PV modules.
PV1 ISO running warn
The insulation voltage is too low.
► Check the insulation resistance on the PV modules.
PV1+ Grounding warn
PV1- Grounding warn
DC+/DC- not correctly grounded.
► Check the GND connection.
► Check the insulation resistance of the GND connection.
► Replace the grounding kit if necessary.
PV1 ISO startup fail
The startup insulation is too low.
► Check the insulation resistance at the DC side of the PV modules.
PV1 ISO running fail
Operating insulation <150 kΩ.
► Check the insulation resistance at the DC side of the PV modules.
PV1+ Grounding fail
PV1- Grounding fail
DC+/DC- not correctly grounded.
► Check the GND connection.
PV1 Voltage too low
The DC voltage is too low.
► Check the PV cell voltage shown on the display (
416 Current Data PV
menu).
L1 power reduction
Power reduction active for L1.
PV1 PW limit to Pn
Power limiting active for PV1.
PV1 temp derating
Temperature derating active for PV1. Reduced electricity production.
The internal temperature of the solar power inverter is between 55 and 70° C.
► Check the ventilation of the solar power inverter.
► Prevent direct sunlight from reaching the solar power inverter.
