Cause : Braking Transistor Overload Fault comes when the braking transistor in the drive has been overloaded.

1. The proper braking resistor has not been installed. Select the proper braking resistor.
2. Use a regen converter, regen unit, braking unit, or other device to connect the +1 or +3 terminal to the - terminal. Set L8-55 to 0 to disable Internal Braking Transistor Protection.
3. The use rate of the braking transistor is high (i.e., the regen converter is large or the repetition frequency is high).
   • Change to a CDBR type braking unit.
   • Change to a regen converter.
   • Increase the deceleration time.
4. The braking transistor inside the drive is faulty. Replace the drive.