Troubleshooting
The following table shows a selection of possible problems and solutions.
Problem | Possible reasons | Possible solutions |
---|---|---|
The motor is not turning. | The motor channel was blocked due to a fault. |
|
The motor channel is disabled. | Set the variable "Enable" of the corresponding motor channel to 1. | |
The variable "Velocity" is smaller than the parameter "Start velocity". | Increase "Velocity" or decrease parameter 80n00:09hex "Start velocity". | |
The motor does not react to changes in the output variable "Velocity". | The speed controller is disabled because the proportional component is zero. | Set the parameter 80n3:12hex "Velocity loop proportional gain" to a value greater than zero. |
Unexplained failure of an EP7402 or other device powered from the same supply voltage. | Overvoltages on the supply voltage UP, caused by energy recovery, e.g. in the following events:
| Use a brake chopper to prevent overvoltages on the supply voltage UP. |