Question

Why can't Mitsubishi PLC control the operation of the step-by-step motor?

Answer 1

Mitsubishi PLC cannot control the operation of the stepper motor for the following reasons:

1. The power supply voltage of the motor does not match the power supply voltage of the PLC, resulting in the PLC being unable to control the normal operation of the motor.

2. The model of the stepper motor does not match the output type of the PLC, resulting in the PLC being unable to output the correct control signal.

3. The control program is written incorrectly, resulting in PLC being unable to correctly control the operation of the stepper motor.

4. The setting of the stepper motor driver is incorrect, resulting in the inability to receive the control signal of the PLC.

5. The stepper motor itself is faulty or damaged, resulting in normal operation.

Answer 2

Mitsubishi PLC controls the operation of the step-by-step motor because the PLC is able to control the operation of the motor through sequential control commands.

Sequence directives include:

1. Contact command: logic operation starts;
2. Connection instructions: AND logic block and;
3. Output instruction: soft component output;
4. Shift command: the component shifts by 1 position;
5. Main control command: the main control starts;
6. End instruction: end the main program.