1. At the start of the start, it will trip at a rising speed. This is a phenomenon in which the overcurrent is very serious.
1 Is the working machine stuck?
2 Is there a short circuit on the load side, check if there is a short circuit to the ground with a megger
3 Is the inverter power module damaged?
4 The starting torque of the motor is too small, the drag system can't turn
2. Do not trip immediately when starting, but trip during operation, main inspection
1 The speed setting time is too short and the acceleration time is lengthened.
2 Deceleration time setting is too short, lengthening deceleration time
3 Torque compensation (U/F ratio) setting is too large, causing excessive no-load current at low frequencies
4 The electronic thermal relay is improperly set, and the operating current is set too small, causing the inverter to malfunction.
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