PV reverse connection fault (code 028/029)
Fault name | PV reverse connection fault (fault code: 028/029) |
Fault type | Failure shutdown |
Fault condition | 1. The positive and negative electrodes of PV1/2 are connected reversely. 2. The input voltage of PV1 is less than 1V and the current is less than -2.8 A for 500ms. 3. The input voltage of PV2 is less than 1V and the current is less than -2.8 A for 500ms. |
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This manual is intended for professional technicians who are responsible for installation, operation, maintenance and troubleshooting of inverters, and users who need to check inverter parameters. The inverter must only be installed by professional technicians.
The professional technician is required to meet the following requirements:
Know electronic, electrical wiring and mechanical expertise, and be familiar with electrical and mechanical schematics.
Have received professional training related to the installation, commissioning and troubleshooting of electrical equipment.
Be able to quickly respond to hazards or emergencies that occur during installation, commissioning and troubleshooting.
Be familiar with local standards and relevant safety regulations of electrical systems.
Read this manual thoroughly and understand the safety instructions related to operations.