What should I do if the PLC wants to control more than 2 stepper motors

The CPU main module of the general PLC can send two pulses, such as the Mitsubishi FX series, that is, it can control 2 stepper motors, and it runs in a single direction, if you want to rotate forward and reverse, you need to use the pulse + direction mode.

The FX3U can send 3 high-speed pulses, that is, it can control the forward and reverse rotation of the stepper motor in 3 pulses + direction mode.

If the FX series wants to control more than one stepper motor, such as 4 or more, you need to add a pulse expansion module, such as 1PG or 10PG, and the number of motors will be increased by one for each additional 1PG or 10PG.

Inovance PLC, H1U or H2U, some models support 2 channels, 3 channels, and 5 pulse outputs, and the riding pet model with Q behind can send 5 pulses. If Inovance wants to control more stepper motors, such as more than 5, it needs to add the pulse expansion module of the Mitsubishi FX series, such as 1PG or 10PG, and the number of motor controls will increase by one for each additional 1PG or 10PG.

OMRON's CP1H can send out 4 sets of forward and reverse pulses.

Above, Mitsubishi and Inovance can use the same software and programming methods. The PLCs of the various manufacturers mentioned above need to be transistor type, otherwise they cannot be pulsed, please note.

PLCs with more than two or more high-speed counting points are sufficient, and the Siemens 314C-2PNDP has 4 points and can control 4 stepper motors.

Does Siemens' PLC have four high-frequency pulse channels? In my impression, there seem to be only 2:,, if the four stepper motors are not operating at the same time, for example, two as a group, you can use the relay method to switch to share 2 outputs, if you can't share, then you can only add EM253 bit control module.

It depends on what kind of PLC you use!What kind of control requirements! That's a big question!

Buy a transistor output PLC with high speed.

1. PLC cannot replace the stepper motor controller, because the stepper motor needs the stepper motor driver to act according to the signal.

2. PLC, programmable logic controller, it adopts a class of programmable memory, which is used for its internal storage program, performs user-oriented instructions such as logic operation, sequence control, timing, counting and arithmetic operation, and controls various types of machinery or production processes through digital or analog input and output.

3. The stepper motor driver is an actuator that converts electrical impulses into angular displacement. When the stepper driver receives a pulse signal, it drives the stepper motor to rotate at a fixed angle (called the "step angle") in a set direction, and its rotation is to run step by step at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency, so as to achieve the purpose of speed regulation and positioning.

PLC is not a substitute for the first two.

Stepper motors require a stepper motor driver to follow the signal. This signal can come from a variety of controllers, PLCs, or even microcontrollers.

The PLC is to send the control signal, the stepper driver is to drive the motor, and the PLC cannot replace the driver. The selection of the stepper motor is based on the main load situation and installation requirements, and the driver can be selected after the motor is determined.

PLC can replace the controller part (control part and drive part circuit composition), but can not replace the driver for driving. Use the stepper instruction of the PLC to realize the control (signal) of the stepper motor driver, and then use the driver to drive the stepper motor to run! The selection of stepper motor should be carried out according to the actual use requirements, such as precision requirements, speed, power and so on!

PLC is not a substitute for stepper motor drivers. When the PLC sends a pulse signal to the driver, the driver amplifies the pulse signal to detect the pulse, and then outputs it to the stepper motor. A stepper motor is similar to a DC motor.

To control the DC motor, it is necessary to have a special drive for the DC motor to do the control.

PLC outputs pulses to stepper motors: The stepper motor receives the pulse signal, and then converts the output pulse to control the stepper motor.

The selection of PLC is as long as it is a PLC that can transmit high-speed pulses (transistor output PLC).

Stepper motor selection, if you are doing experiments, then you can go to the top to buy a set of 57 stepper motors, and you can buy a set for more than 100 yuan.

Summary. Hello, the speed of the motor, the position of the stop only depends on the frequency of the pulse signal and the number of pulses, and is not affected by the change of load, when the stepper driver receives a pulse signal, it will drive the stepper motor to rotate a fixed angle in the set direction. The angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency, so as to achieve the purpose of speed regulation.

PLC is how to control the operation of the stepper motor.

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Hello, the speed of the motor, the position of the stop only depends on the frequency of the pulse signal and the number of pulses, and is not affected by the change of load, when the stepper driver receives a pulse signal, it will drive the stepper motor to rotate a fixed angle in the set direction. The angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency, so as to achieve the purpose of speed regulation.

Summary. It is possible not to use a PLC, but to use a stepper driver. The stepper driver panel operation has the function of controlling the pulse output of the stepper motor, and there are many functions, using 10gm or 20gm as the positioning module.

The definition of a stepper motor is an open-loop control element stepper motor device that converts an electrical pulse signal into angular or linear displacement. Therefore, there must be an electrical pulse signal to make the stepper motor rotate, and the controller and PLC give this electrical pulse signal to make the motor rotate.

The driver is a must, because it is a current amplifier, the PLC can be used, the pulse can also be sent with the step controller, it can also be programmed, and there are input and output points.

It is possible not to use a PLC, but to use a stepper driver. The stepper driver panel operation has the function of controlling the pulse output of the stepper motor bridge, and there are many functions, using 10gm or 20gm as the positioning module. The definition of stepper motor key celebration is:

An open-loop control element stepper motor device that converts an electrical pulse signal into angular or linear displacement. Therefore, there must be an electrical pulse signal to make the stepper motor rotate, and the controller and PLC give this electrical pulse signal to make the motor rotate. The driver is necessary, because it is a current amplifier, PLC can be used, and it can also be pulsed with a step-by-step sensitive light standby, and it can also be programmed, and there are also input and output points.