1. Press the motor start button, and the motor will start and run at the corresponding speed of 5Hz; After the delay of 10s, the motor will run at the speed corresponding to 10Hz, and after the delay of 10s, the motor will continue to speed up and run at the speed corresponding to 20Hz; In the future, every 10 seconds, the speed will change regularly, and it will actively re-operate after one operation cycle. Press the abort button to stop the motor.
Second, the project is completed
1. The setting of MM440 inverter
The digital input "5", "6", "7" and "8" terminals of MM440 inverter are set to 15 fixed frequency control terminals through P0701, P0702, P0703 and P0704 parameters, and the frequency of each frequency band is different
Parameter set by P1001 - P1015. The digital input "16" terminal of the inverter is set to the motor operation and abort control terminal, which can be set by the P0705 parameter.
2. I/O distribution of PLC
I0.0, motor running, corresponding to motor running button SB1;
I0.1, motor abort, corresponding to motor abort button SB2;
Q0.0, fixed frequency setting, connected to MM440 digital input terminal "5";
Q0.1, fixed frequency setting, connected to MM440 digital input terminal "6";
Q0.2, fixed frequency setting, connected to MM440 digital input terminal "7";
Q0.3, fixed frequency setting, connected to MM440 digital input terminal "8";
Q0.4, motor operation/abort control, connected to MM440 digital input terminal "16"
3. PLC programming
The PLC program should include the following controls:
(1) When the forward rotation start button SB1 is pressed, the Q0.4 of the PLC should be set to ON, allowing the motor to run.
(2) PLC output interface status, inverter output frequency, motor speed change
(3) When the abort button SB2 is pressed, the Q0.4 of the PLC should be reset to OFF, and the motor will stop running.
4. Operation steps
(1) Connect the circuit diagram, check the wiring is correct, and turn on the power supply of the PLC and the inverter.
(2) The default value of the rehabilitation inverter factory, P0010 is set to 30, and P0970 is set to 1. Press the "P" button on the inverter's operating panel and the inverter starts to reset to the factory default.
(3) The motor parameters are set as follows, and after the motor parameters are set, set
P0010 is 0, and the inverter is in a state of readiness and can operate normally.
P0003 is set to 1, and the visit level is standard;
P0010 is set to 1 for quick debugging;
P0100 is set to 0, the power is indicated in kW, and the frequency is 50Hz;
P0304 is set to 230, additional voltage of the motor;
P0305 is set to 1, the motor is extra current;
P0307 is set to 0.75, additional power of the motor;
P0310 is set to 50, and the motor has an additional frequency;
P0311 is set to 1460, additional speed of the motor;
The P3900 is set to 1, and the quick commissioning is completed, and it enters "Ready for Operation".
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