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ID : 1424

Example of Using System I/O Signals

This section illustrates an example of starting and stopping the robot using system I/O signals.

Equipment setup example

This example shown below assumes an equipment setup which allows you to run the robot by operating an external equipment’s operation panel connected via the PLC to the robot controller. It is assumed that the operating panel has a display, lamps and switches listed on the next table.

Example of Equipment Setup Using a Robot

Function Example of External Equipment Operating Panel

Classification Part Application
Display Display Displays messages, such as ROBOT PREPARATION OK.

Lamp

 Automatic operation indicator
  • Lights during automatic operation.
  • Turned OFF when the robot is not in automatic operation.
Robot external running OK indicator
  • Lights when the Operation Preparation Completed signal is ON.
  • Turned OFF when the Operation Preparation Completed signal is OFF.
Operation OK indicator
  • Lights when the Enable Auto input signal is ON.
  • Turned OFF when the Enable Auto input signal is OFF.
Robot home position indicator
  • Lights when the robot is in the home position for working.
  • Turned OFF when the robot is out of the home position for working. (By programming with an user-output)

Switch

 Robot preparation button Starts the preparation of the robot.
Automatic start button Starts the operation of the equipment.
Cycle stop button Stops the equipment after a cycle of operations is completed.
Operation/ Adjustment selector switch
  • Automatic operation of the robot possible when OPERATION is selected.
  • Manual operation or teach check of the robot possible when ADJUSTMENT is selected.

Actual equipment requires emergency stop, interlock and other functions; however, described here are the necessary functions.

ID : 1424

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