Common solutions for Siemens G120 inverter F08502 faults

Create Date: 2024-8-30 12:03:23|Source: Siemens/Siemens

1 Check whether there is EMC interference in the inverter or network cable

Common solutions for Siemens G120 inverter F08502 faults

To ensure that the inverter is firmly grounded, the grounding resistance of the inverter is generally required to be less than 4 ohms.

Industrial-grade shielded network cables and network cable connectors are used

The shielding layer of the network cable should be firmly grounded, and the more ambitious shielding laying case

The network cable and the power cable should be routed in different bridges as much as possible. If parallel wiring is required due to site conditions, it is necessary to maintain a distance of more than 20 cm

2 Check the operating environment of the inverter

The electrical room at the inverter site must not contain corrosive gases such as sulfur dioxide, hydrogen sulfide, and chlorine

A large amount of metallic dust is not allowed in the electrical room, the inverter should work in a suitable temperature and humidity environment, and no condensation is allowed inside and outside the inverter

3 Check the cable wiring

Users should prevent improper use, such as network cables or their shielding layers accidentally connected to strong electricity.

4 Replacement Components

If there is no obvious problem after checking the points described above, and the problem cannot be reset after re-powering, then the cause of the F08502 problem is most likely the hardware problem of the device, and then it is necessary to consider replacing the control unit.

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