How to use plc control the DC motor

How to use plc control the DC motor

PLC control DC motor: PLC output control relay, relay control contact DC contactor.

PLC positive and negative ladder

Mitsubishi PLC

X000 is the forward button, X001 is the reverse button, X002 is the stop button; Y000, Y001 for the PLC output, then two AC contactor KM1, KM2 to control the motor reversing

Siemens PLC program

I0.0 is the forward rotation button, I0.1 is the reverse rotation button, I0.2 is the stop button; Q0.0, Q0.1 is the PLC output connected with two AC contactor KM1, KM2 to control the positive and negative rotation of the motor

PLC control motor forward and reverse

X0 Forward button, X1 Reverse button, X2 Stop button, X3 Limit 1, X4 Limit 2, Y0 Forward rotation output, Y1 Reverse rotation output

CN1 wiring diagram of MITSUBISHI MR-J3 servo amplifier

2. servo motor: HF-SP502
3. drive: MR-J3-500A

This is my first use of MITSUBISHI's system, and the first time to learn and apply the servo positioning system.

MITSUBISHI PLC programming software GX Developer operation method

1. Download and install Gx Developer
2. Connect PLC. First, connect the PLC with the serial line, PLC to power, and switch to the STOP mode.
3. Software settings. Enter Gx Developer, create a new project, menu "online" - "transmission settings" - select the right COM port - click "communication test" - if successful, OK.

4. Programming
5. Compiler, F4
6. Write to PLC. Menu "online" - "PLC write", select "parameter + program", point "execute""
7.PLC switch to RUN state, programming completed!

PLC encryption, when writing, click "login keywords", to 8 bits

GX Developer Correct installation method

1, Download GX Developer 8.86


3, the installation package should be located in the D disk, unpack the file to the "886" folder

4, close all antivirus software, firewall these two software will affect the installation process of reading and writing files, first shut down the best

5, open the task manager, check whether there is a wowexec.exe process, and put it to an end

6, execute D:\886\Developer\Update\AXDIST.EXE

7, execute D:\886\ENVMEL\SETUP.EXE

8, D:\886\Developer\SETUP.EXE now has 3 points to note: 1, input and company name, with English or number 2, serial number 570-9868184103, the installation process all hook don't strictly follow the instructions to create a new project can solve the problem of failure,

9, after installation, all anti-virus software can be opened

10, 119 alarm processing method, 360 alarm! Reinstall the SW8D5C-GPPW-C\EnvMEL setup; when the first 360 firewall alarm occurs, check all the programs that allow the program. If the check allowed, this operation will appear this alarm!

what name of Mitsubishi PLC programming software

Mitsubishi PLC programming software called: GX-DEVELOPER, software installed after the call SW7D5C-GPPW or SW8D5C-GPPW.
The corresponding simulation software is called GX Simulator

PLC has self-locking function. What is meant by self-locking?

The self-locking in PLC is the coil control contact to maintain the self energized state of the coil itself. The simplest self locking is to use the normally open contact X1 to control the coil Y1, and then turn back the normally open contact of the Y1 on the X1.

What does K2Y000 mean in MITSUBISHI PLC?

What does K2Y000 mean in MITSUBISHI PLC?

K4Y0 is 2 bytes y0-y17
K2Y0 is 1 bytes y0-y7


1, MPS (into the stack instruction): The result of the operation into the first segment of the stack memory, while the previously sent data to move to the next section of the stack.

2, MRD (read stack instruction): the first paragraph of the stack memory data (last into the stack of data) read and the data continues to be stored in the first paragraph of the stack, the data in the stack does not move.

3, MPP (out of the stack instruction): The stack memory of the first piece of data (the last stack of data) read and the data from the stack disappeared, while the other data in the stack in turn up.