Hi:
1st post but I have been lurking for a while so I will try to give all the pertinent information:
Maintenance tech, 7 years, mostly working the mechanical side,
trying to learn more of the controls side
The machine with the Kinetix 6500 is a tube cutting machine, it is currently cutting 3/16 tubing with .028 wall thickness within +/- 1mm length tolerance in lengths between 300mm and 4 meters.
The main parts of the drive system consist of:
CompactLogix L33ERM
RSlogix5000 mini edition v24
Kinetix 6500 (connected by Ethernet)
MPL-B520K-MK72AA motor with a UltraTrue 5:1 reduction connected through a coupling directly to a feed roller with timing belts and pulleys from the this feed roller to drive 3 more rollers.
Directly after the tube passes through the feed rollers it goes through a pre straightener consisting of 14 rollers before it gets to the cut head. After cut head it to goes to a final straightener
The problem I keep running into is that every month I have to change this machine from running 3/16 tubing to running 5/16 tubing for about 2 days then switch it back. When I changed it to 5/16, the feed rollers will not feed the tube through like they should. The pre straightener is suppose to do 90% of the straightening with the final straightener doing the last 10% but I cannot apply hardly any pressure to the pre straightener rollers or the servo will error out with FLT S54 position error. Because of this, I end up backing off on the pre straightener and running the final straightener way too tight to make the machine run. This is really hard on the final straightener.
I am assuming the servo is faulting because the 5/16 is much harder to push through the pre straightener then the 3/16. I had been considering manually adjust the Load Inertia or Peak Torque values in the parameters to compensate but I realize that is not the proper way to address this problem.
What would be the proper way to address this problem? Please keep in mind I am more or less a beginner.
1st post but I have been lurking for a while so I will try to give all the pertinent information:
Maintenance tech, 7 years, mostly working the mechanical side,
trying to learn more of the controls side
The machine with the Kinetix 6500 is a tube cutting machine, it is currently cutting 3/16 tubing with .028 wall thickness within +/- 1mm length tolerance in lengths between 300mm and 4 meters.
The main parts of the drive system consist of:
CompactLogix L33ERM
RSlogix5000 mini edition v24
Kinetix 6500 (connected by Ethernet)
MPL-B520K-MK72AA motor with a UltraTrue 5:1 reduction connected through a coupling directly to a feed roller with timing belts and pulleys from the this feed roller to drive 3 more rollers.
Directly after the tube passes through the feed rollers it goes through a pre straightener consisting of 14 rollers before it gets to the cut head. After cut head it to goes to a final straightener
The problem I keep running into is that every month I have to change this machine from running 3/16 tubing to running 5/16 tubing for about 2 days then switch it back. When I changed it to 5/16, the feed rollers will not feed the tube through like they should. The pre straightener is suppose to do 90% of the straightening with the final straightener doing the last 10% but I cannot apply hardly any pressure to the pre straightener rollers or the servo will error out with FLT S54 position error. Because of this, I end up backing off on the pre straightener and running the final straightener way too tight to make the machine run. This is really hard on the final straightener.
I am assuming the servo is faulting because the 5/16 is much harder to push through the pre straightener then the 3/16. I had been considering manually adjust the Load Inertia or Peak Torque values in the parameters to compensate but I realize that is not the proper way to address this problem.
What would be the proper way to address this problem? Please keep in mind I am more or less a beginner.