Example of Mitsubishi PLC controlling servo motor

Taking Mitsubishi PLC controlling servo motor as an example, let’s share the specific steps of servo motor control.

1. Set the basic parameters of the positioning module

In the intelligent function module (QD77MS series), set the corresponding parameters according to the mechanical configuration.

Basic parameter settings

2. Set the basic parameters for origin return

Choose the origin return method according to the actual situation: near-point DOG type, data setting type, counting type, etc.

Origin return method

3. Set the servo amplifier parameters

Set the absolute position system, relative position system, automatic tuning and other parameters, or select "one-click adjustment" to set related parameters.

Servo amplifier parameter setting

4. Servo external signal program

Contains peripheral access signals such as servo motor power signal, servo motor brake signal, etc.

External signal program

5. Origin return procedure

Perform origin regression according to different origin regression methods.

Origin return program

6. Manual Procedure

JOG+, JOG-, servo stop, servo alarm reset, etc. and PLC CPU input/output signals.

Manual Procedure

7. Current parameter feedback & control parameter writing program

①. Feedback parameters:

The current position, alarm code, current speed, etc. of the servo motor.

Current status feedback

②.Control parameters:

Write the control parameters related to JOG speed, servo positioning speed, etc.

Control parameters

8. Servo positioning start-up procedure

Contains the servo positioning start number, positioning address, and positioning start signal.

Positioning start parameter writing

Positioning start

9. Test run

Following the above steps, you can test run the servo motor.

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Appendix: Buffer memory address allocation table