What to do if Teco Electro Drives TSTA displays drive over-current?
- JJohn TranAug 21, 2025
If your Teco Electro Drives Controller displays a Drive Over-current error, it may be due to an over-current in the drive's main circuit or a transistor error. First, check the connections of the motor cable (U, V, W) and the encoder, as well as the power cable connection. If the alarm persists, turn off the power, wait 30 minutes, and then turn it back on. If the alarm continues, there may be a power module malfunction or noise interference, and the drive may need testing and repair.

