Integrating an electric actuator with pneumatics is about moving from basic on/off switching to precise motion control.
At a high level, the system functions like a hybrid: the pneumatics handle the heavy lifting (picking and placing), while the electric actuator provides the precise, repeatable positioning that pneumatic cylinders can't achieve alone.
1. Physical Integration
Power Down: Turn off all electrical and pneumatic power before mounting hardware.
Mechanical Setup: Secure the linear actuator to the trainer stand using existing bolt patterns.
Connectivity: Plug the actuator cables into the drive, verifying they are seated correctly.
2. Software Configuration
Importing AOIs: Copy the Yamaha linear actuator AOI from your existing trainer project files into your current working project.
Ethernet Configuration: Add the actuator to your Ethernet module list and ensure the IP address matches your hardware setup.
Tag Management: Address undefined tags generated after pasting the logic to ensure the program scans correctly.
3. Logic Development
Foundation: Start with a stable pneumatic base. The actuator introduces a "servo" component that requires homing (originating) to establish a zero point before movement occurs.
Safety & Control: Software must verify the servo is powered, the system is in the correct mode (Auto or Manual), and the unit is homed before it will accept commands.
Variable Motion: Move toward using dynamic tags for speed and position variables, allowing for adjustments without changing the underlying program structure.
4. Testing & Safety
Dry Run: Perform testing with the air supply disconnected to verify logic without physical movement.
Incremental Speed Tuning: Start at low speeds (e.g., 10-15%) to prevent damaging the part or the actuator during travel, then ramp up only after verifying stability.
Knowledge Check Quiz
- Why is it important to set the retract speed lower than the extend speed when moving parts?
Click to reveal answer
A lower retract speed prevents the part from sliding or falling off the gripper due to rapid acceleration or sudden deceleration.
- What is the purpose of the "Origin Complete" bit in the Yamaha linear actuator AOI?
Click to reveal answer
It indicates that the actuator has successfully performed its homing routine and knows its absolute position within the travel range.
- If your routine has green bars on the left and right but isn't executing, what is the most likely cause?
Click to reveal answer
You are likely missing a JSR (Jump to Subroutine) instruction in your Main Routine that points to your new actuator routine.
- Why should you use temporary bits (like "Test Extend") for initial commissioning?
Click to reveal answer
It allows you to manually verify that the motion logic, speed settings, and position targets work correctly before finalizing them into the main sequence.
- What is the recommended state of the trainer air supply when first testing new PLC motion logic?
Click to reveal answer
The air supply should be turned off to prevent unexpected motion or collisions while debugging the logic.