Hello everyone, now we are using Kinetix 6000 Multi-axis Servo Drives and TPM 025S – 031V – 6PB1 – 094C – W5 servo motor from Wittenstein, the main function of the servo motor is to elevate the welding module up and down. Several months ago, the servo suddenly increased the torque by 50% compared to normal state, which caused UPS several times in a shift. we went down to the machine and found out the locating pin was worn out and misaligned with the main transport plate. We replaced it and the torque went back to normal due to the welding module was aligned with the main transport plate. The E64 fault started to appear after this problem and still on till now.
We did something that we thought can solve the problem:
- Upgrade the PLC Logix L73 to L83 but it's not compatible with system so we keep using L73
- Replace the servo drive to the new one
- Replace all the cables, check the connection if it was right or not
- Check grounding, it was normal
- Check the physical components connected to the servo, everything was ok
- Measure vibration of servo motor & magnetic field
- Replace the servo motor with the new one
- Check looking assembly and alignment
- Invite Rockwell and Servo expert to the site
All the things we do but E64 keep showing so we bypass the E64 by changed feedback noise to status only and the system continue to work. Has anyone experience this before and can you share what you do to solve this. We want to eliminate the E64 completely so the feedback is true and we can we know the true root cause when it send signals, thank you everyone.