Replacing the Programmable Logic Controller (PLC) of a paper sheeter is a crucial task that ensures the smooth functioning of the machine. However, this process can lead to the loss of touch screen data, necessitating the re-input of system parameters. In this guide, we will walk you through the steps to change the PLC of a paper sheeter and guide you in reconfiguring the system parameters to get the machine up and running efficiently.
Step 1: Preparation
Before beginning the PLC replacement process, ensure that you have the necessary tools and equipment. This may include screwdrivers, pliers, a machine electric wiring drawing, and the user manual for reference.
Step 2: Shut Down the Machine
To avoid any accidents or damage to the equipment, turn off the paper sheeter and disconnect it from the power source. It is essential to follow proper safety procedures during this step.
Step 3: Remove the Old PLC
Locate the existing PLC unit within the paper sheeter. Typically, it is housed in a control panel or enclosure. Carefully disconnect all wires and cables connected to the PLC, making note of their positions for reconnection later. Unscrew and remove the old PLC from its mounting position.
Step 4: Install the New PLC
Insert the new PLC into the designated mounting position within the control panel or enclosure. Ensure that it is securely in place and align it with the screw holes for installation. Connect all wires and cables to the corresponding terminals on the new PLC, referring to your notes from the previous step.
Step 5: Program the New PLC (If you have a DOINMC-programed PLC at hand already, escape this step please.)
Using a laptop with compatible programming software, connect to the new PLC and upload the necessary program. If the program is not readily available, consult the manufacturer’s documentation or contact their technical support for assistance. Ensure that the program is tailored to the specific requirements of your paper sheeter.
Step 6: Input System Parameters
As mentioned earlier, changing the PLC may result in the loss of touchscreen data and system parameters. To rectify this, navigate to the settings menu on the paper sheeter’s touch screen interface. Re-enter the required system parameters such as unwind tension settings, speed settings, knife squareness settings, and any other relevant configurations.
Step 7: Testing and Calibration
Once the new PLC is installed, programmed, and system parameters are inputted, it is time to conduct thorough testing. Power on the paper sheeter and run test sheets through the machine to ensure that it operates correctly. Make any necessary adjustments to the settings or programming to optimize performance. Normally testing length is 450mm, 800mm and 1200mm. If all the above cutting length precision is correct or not.
Changing the PLC of a paper sheeter is a task that requires precision, attention to detail, and proper procedure adherence. By following the steps outlined in this guide, you can successfully replace the PLC and reconfigure the system parameters, ensuring that your paper sheeter operates efficiently and reliably. Remember to prioritize safety throughout the process and consult us (paper sheeter manufacturer) if needed.
