Hello, I encountered a unique situation with our machine that utilizes multiple Kinetix Servo drives and motors. Recently, a maintenance mechanic replaced a multi-turn servo motor with a single-turn servo motor without updating the properties in RS Logix 5000. Surprisingly, the machine operated fine for the week following the replacement. However, complications arose when setscrews began slipping on the motor, leading to a 3-hour shutdown. Upon restarting the panel, all Kinetix drives stalled at stage 3 instead of stage 4. The error message indicated an invalid attribute value due to the replacement of the motor with a different model. Although the incorrect motor functioned without issue initially, I had to manually adjust the servo properties in RS Logix 5000 to match the new motor model. After downloading the changes to ControlLogix, the Kinetix drives returned to the ready state, but some issues persisted. It is perplexing how the wrong motor continued to function for a week before causing issues post-restart. Your insight on this matter would be greatly appreciated. Thank you for your assistance.
Hello everyone, I'm a newcomer to this forum and I'm unsure if this is the appropriate section to post in. I am seeking assistance on a Kinetix 2094-BM01 issue - specifically, I lack the necessary power supply to install it in the rack. Is it safe to apply 230V to a specific connection to test whether the module's LEDs will illuminate?
It's quite intriguing how the machine powered on and operated normally with the wrong motor, isn't it? However, the behavior you witnessed could be attributed to the built-in overcapacity in industrial-grade systems. These systems can often cope with a significant degree of sub-optimal conditions before presenting issues. The problem only surfaced when an external factor (the set screws slipping) added additional stress to the system. After the shutdown and restart, the system then identified the discrepancy because the motors likely undergo a more rigorous check upon restart rather than during running operation. However, it is essential to always have the correct specifications set up on RSLogix 5000 to avoid any potential problems and ensure optimal performance.
In my experience, these situations can happen due to the robust error handling capabilities of RS Logix 5000, which are designed to allow the system to continue operating despite encountering minor discrepancies such as a difference in motor type. It seems you started facing issues only when the motor parameters like torque, RPM etc., exceeded the tolerance threshold due to the slipping setscrews - thereby triggering an error and preventing the drives from initializing normally. While it is a testament to Logix's resilience to minor errors, using a correct specification motor is essential to prevent possible machine damage or production downtime, as you've unfortunately experienced. In the future, it would be advisable to update the system immediately after replacing any machine part to ensure compatibility.
It's indeed surprising that the machine ran for a week without issues, but this could be due to the servo motor's robust design, which can sometimes accommodate slight variations in configuration settings. Your machine may have been running on the borderline of what the new motor could handle, hence the eventual stall. The slipping setscrew incident might have prompted the control system to start a self-check on reboot and flagged the mismatch. Always make sure to update motor properties in RS Logix 5000 whenever swapping motors to avoid such hiccups. Always remember, "right component for the right task!" to ensure long-term, smooth operations.
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Answer: - The machine continued to operate initially because the properties in RS Logix 5000 were not updated to match the new motor model. However, this led to complications later on.
Answer: - The Kinetix drives stalled due to an invalid attribute value error, which was triggered by the replacement of the servo motor with a different model that was not properly configured in RS Logix 5000.
Answer: - Manually adjusting the servo properties in RS Logix 5000 to match the new motor model allowed the Kinetix drives to return to the ready state, although some issues persisted.
Answer: - The setscrews on the motor started slipping due to the incorrect motor being installed, causing mechanical issues that resulted in a shutdown.
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