I am currently working on regulating torque limits using a PLC and utilizing the TELEGRAM 352 system. However, during the commissioning process with torque limit upper/lower settings, the motor runs continuously and throws an error of Motor Overspeed. Could you assist me in effectively controlling the torque limits in this situation?
When it comes to setting torque limits, I prefer using percentages. However, it's important to keep in mind that every application is unique. Make sure to check your torque limits on documents R1526 and 1527. Can you provide more details about the specific application you are referring to?
It is crucial to pay attention to the torque limits indicated on the sign and take note of any warning messages. This information applies to both CU320 and CU250 systems.
I am currently utilizing Tia Portal and am interested in adjusting torque limits while simultaneously controlling speed.
Are there any recommended blocks for me to utilize? What specific parameters are you looking for?
Can you specify the location of the speed control setpoint? Is there a function block available for speed and torque control?
It sounds like you are having a synchronisation issue between your PLC's speed control and the motor's maximum speed capacity. You may want to double-check if your speed command is within the motor’s rpm range and ensure the PLC's output frequency isn't higher than what the motor can handle. Also, a potential solution could be tweaking the PID settings on your PLC. However, remember that achieving the ideal torque may necessitate the iterative and careful adjustment of these parameters.
It sounds like you're having issues during the commissioning process with your TELEGRAM 352 system and the torque limit settings. One thing you might want to try is to monitor your drive's speed feedback more closely. Oftentimes, Motor Overspeed errors can be traced back to incorrect or incompatible speed feedback. Also, the continuous running of the motor may be due to incorrect wiring or an error in your PLC program that affects how the motor reacts to the torque limits. Review your PLC program and check your wiring for any errors. Lastly, check to be sure that your PLC is sending the correct commands to the TELEGRAM 352 system that correspond correctly with your desired torque limits.
It seems like you might be dealing with incorrect feedback signals to your PLC which is causing the Motor Overspeed error. This could be due to an inaccurate speed/torque setting or sensor fault. For a first step, ensure your sensor is operating correctly. Also, you may want to review your PLC's control program — it should regulate torque effectively by dynamically adjusting the motor's speed based on load conditions. Consider implementing a PID control loop in your program to keep the torque under control. Furthermore, double-check that the data blocks in TELEGRAM 352 (for speed/torque limitation) are being referenced correctly in your program.
It seems like your PLC might not be communicating effectively with the motor, leading to the overspeed. I suggest checking the configuration settings of your TELEGRAM 352 system. Ensure that your Profibus connection is robust and the communication is happening in real-time, with feedback properly going back to your PLC. Also, look at the parameters of the motor within your PLC programming. If the upper and lower ranges for torque aren't matching what the motor can handle, it might trigger overspeed errors. You may need to adjust these parameters a bit to ensure smoother operation.
It sounds like you’re facing a tricky challenge with your torque limits and the PLC setup. One thing to check is if the parameters for the torque limits are correctly scaled and applied in the PLC program—sometimes a mismatch in expected vs. actual unit representations can cause the system to behave unexpectedly, like allowing the motor to overspeed. Additionally, double-check that the feedback from your torque sensor is accurately integrated into the control logic and that there aren’t any delays in signal processing that could lead to the motor running continuously despite the limits. Implementing a deadband around your torque limits might also help prevent the overspeed error by providing a buffer zone around the set values. Good luck!
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Answer: 1. How can I effectively control torque limits using a PLC and TELEGRAM 352 to address motor overspeed issues? - To effectively control torque limits using a PLC and TELEGRAM 352 for motor overspeed issues, ensure that the torque limit upper and lower settings are properly configured in the system. Additionally, consider adjusting the parameters related to motor speed and torque to prevent the motor from running continuously and encountering an error of Motor Overspeed.
Answer: - The motor running continuously and throwing a Motor Overspeed error could be due to incorrect configuration of the torque limit settings, improper calibration of the TELEGRAM 352 system, or issues with the PLC programming. It is important to review the settings, calibration process, and programming logic to identify the root cause of the problem.
Answer: - To troubleshoot and resolve the Motor Overspeed issue when regulating torque limits, start by checking the accuracy of the torque limit settings in the PLC and TELEGRAM 352 system. Verify that the motor parameters are correctly set to prevent overspeed conditions. Additionally, review the system's feedback mechanisms and sensor inputs to ensure they are functioning properly.
Answer: - When controlling torque limits to prevent motor overspeed errors, consider implementing
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