The output of the inverter is not short-connected to the power frequency

Create Date: 2024-8-30 12:03:23|Source: Delta/Delta

1. To switch the motor of the power frequency, the parking method is set to free parking, and it is important not to park softly

2. The contactor of the motor is blocked from the output end of the frequency converter, and the control stop button and the parking button of the frequency converter are the same composite button, that is, when the parking is pressed, the contactor coil is de-energized and the connection between the motor and the frequency converter is blocked;

                              The output of the inverter is not short-connected to the power frequency

3. The contactor of the motor is intercepted from the output end of the inverter, and the control start button is interlocked with the start button of the inverter, that is, the contactor can be started only after the motor is connected;

4. The motor is connected to the contactor of the power frequency, and its coil control loop is controlled by the normally closed contact of the contactor of the motor at the output end of the inverter to ensure that the output end of the inverter is connected to the power frequency after the motor is blocked

5. If the switching process is agile and accurate, that is, the shorter the moment when the motor runs away from the power supply inertia, the less the speed drops, and the less there is "impact", that is, the motor switches under the rated current;

6. Here it is necessary to pay attention to the phase sequence of the motor accessing the power frequency to ensure that the motor is switched to the same direction!

7. An isolation circuit breaker should be set up from power frequency to motor.

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