Fault 7 DC link
Fault: 7.1 (0701hex | 1793dec) Description: DC link overvoltage | ||
|---|---|---|
| Response: Remote – critical fault | |
Cause | Measure | |
The maximum permitted DC link voltage limit was exceeded. | – Check the connection of the braking resistor. – Decrease deceleration. – Check the configuration of the braking resistor (resistance value). | |
Fault: 7.11 (070Bhex | 1803dec) Description: DC link overvoltage at rectifier | ||
|---|---|---|
| Response: Remote – critical fault with self-reset | |
Cause | Measure | |
The fault can be caused as follows: – The maximum permitted DC link voltage limit of the rectifier was exceeded. – The AC voltage component of the DC link voltage is too high. | – Check the system and nearby devices for ground faults. – Check the quality of the supply system (line voltage distortion). – Check the line voltage. | |
