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Inverter control motor positive reversing circuit and parameter setting
When controlling the positive and reversal of the motor, some basic parameters should be set to the frequency converter, which is as follows:
Parameter name parameter number setting value
Acceleration time Pr.7 5S
Deceleration time Pr.8 3S
Base frequency of acceleration and deceleration Pr.20 50Hz
Base frequency Pr.3 50Hz
Upper bound frequency Pr.1 50Hz
Lower frequency Pr.2 0Hz
Run mode Pr.79 2
1. switch control circuit of positive and reverse control
A three bit switch SA is used, and SA has 3 positions: "positive turn", "stop" and "reverse".
(the description of the work process has been omitted)