OC5-Trip (I*t Overload)

What does 15 mean?

This fault indicates an I*t overload condition. For the KPS-600, it specifically refers to an overload of the brake resistor during operation, suggesting prolonged or heavy braking cycles. For KSDs, it indicates a general I*t overload, meaning the thermal capacity of a component (likely the motor or drive's power stage) has been exceeded over time, risking damage.

1. 1

   Verify the motor nominal current setting in the drive parameters matches the motor nameplate FLA.

2. 2

   Check the acceleration and deceleration ramp times in drive parameters — ensure they are not excessively short for the load inertia.

3. 3

   Monitor the actual motor load during operation and compare it against the motor's rated capacity.

4. 4

   For brake resistor overload (KPS-600), verify the sizing and resistance of the brake resistor are appropriate for the application.