A: Recently a customer noticed that the inverter was spinning in the opposite direction (than adjusted) after a start command was given. The customer has not made any changes to the inverter configuration, no additional disturbances have occurred.
After restarting the inverter works for 1-2 hours correctly, then the error repeats. Interestingly, several other inverters configured identically, work fine. Application: conveyor belt.
In some cases, if the running direction had been changed, perhaps the load is too heavy, inverter be dragged backwards, this is the possible reason.We know that you have several inverters in same application with same motors, but please be informed that the load is different from different goods or quantity on the belt, so that means maybe you think the application are same, the ability of inverter is same, but the load is different. We suggest that please check the load, to see whether that problem one's load is bigger than other sites in some time. And please use vector control mode, set inverter to "P00.13 Forbid to run in reverse direction".