Karim Halawa
Member
All power flex inverters are suffering from F71 fault randomly across the Device net network which cause Operation to stop.
As a resolution from our side,
- We’ve downloaded network parameters and power flex configurations.
- We’ve checked the terminal resistors and sure about their values and functionalities.
After deep exploration and questionnaires from our SMEs they recommended to replace all cabling system for the device net , erect new earthing system and installing new active harmonics conditioner to compensate generated distortion across the network.
Also , I replaced the power supply and removed the resistance installed on PLC card side and let the resistance installed on one of the powerflex in place .
Could you please confirm on the root cause of the problem and the action required in order to solve the problem ?
As a resolution from our side,
- We’ve downloaded network parameters and power flex configurations.
- We’ve checked the terminal resistors and sure about their values and functionalities.
After deep exploration and questionnaires from our SMEs they recommended to replace all cabling system for the device net , erect new earthing system and installing new active harmonics conditioner to compensate generated distortion across the network.
Also , I replaced the power supply and removed the resistance installed on PLC card side and let the resistance installed on one of the powerflex in place .
Could you please confirm on the root cause of the problem and the action required in order to solve the problem ?