Cause : Inverter I2t comes when the power unit was overloaded (r0036 = 100 %) due to the permissible rated power unit current was exceeded for an inadmissibly long time or the permissible load duty cycle was not maintained.

Check the following:

• Load cycle must lie within specified limits.
• Motor power (P0307) must match inverter power (r0206)

Note: F5 cannot be cleared until the inverter overload utilization (r0036) is lower than the inverter I2 t warning (P0294).