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[Tutorial] Omron CP1H & MR J4 Mitsubishi “ORG Search”

Written by plc247.com

PLC Omron and Mitsubishi Servo are popular equipment used in small industrial machines. CP1H Supports control of up to 4 axes
Today plc247.com will start the article to guide you to use CP1H to control Mitsubishi MR-J4-Series Servo

Configure PLC Omron CP1H

+ Select Port: Port 0

+ Use the Pulses Output: Pulse + Direction method

>>> Use Ouput Address 100.00(Pulse) & 100.02(Direction)

+ PLC Setup

Configuring Mitsubishi MR-J4 Driver

With the MR J4 configuration you need to pay attention to two main parameters:

+ PA1: Servo control mode selection > Set to “1000” to select the position control mode.

+ PA5: Number of command Input pulses per Revolution = 1000PLS / 1REV

+ PA6/7: CMX / CDV: Input pulse gain ratio. Used to correct the change of the number of pulses / revolutions when issuing a command from the PLC to the Servo. The default is 1/1, which corresponds to 131072 pulses / rev.

+ PA13-PLSS Selection of control pulse types: Default is 0100, change the following two factors to select pulse input type.

You can copy the parameter table of plc247.com as simple setup as

Connection diagram between CP1H and MR-J4_A

This is the simplest wiring diagram that plc247.com makes for the easiest to understand and can do for newcomers to learn about PLC + Servo.

Programming PLC Omron CP1H

Learn about the Org command

CP1H has 4 pulse generator ports, plc247.com choose port number 1 (Port0)

In the program plc247.com use 2 times the INI command. The first time is used to Stop pulsing immediately, and the second time to reset the Axis0 pulse count

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Programming

I/O Address Table

  • 000-Input: Org Sensor
  • 001-Input: CW Limit Sensor
  • 002-Input: CCW Limit Sensor
  • 011-Input: EMG Button
  • 280.04-Input: Axis0 Busy (Internal Adress PLC)
  • 280.05-Input: Axis0 No Org (Internal Adress PLC)
  • 280.06-Input: Axis0 at Org (Internal Adress PLC)
  • 100.00-Output: Pulse
  • 100.02-Output: Direction

Sensor Status

Stop Pulses Output

Origin Recover

Orr & Jog Process Video CP1H & MR-J4 A

In the next article I will guide you Jogs, position control as well as HMI connection, please register my website to update information about automation.

Best regards!

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