Parker AC690, AC890, AC30, AC10 & Fastpack Drive
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Sep 10, 2024 5:19 am
Cause : LOST COMMS comes when a communication failure between the drive and an external device, such as a programmable logic controller (PLC), human-machine interface (HMI), or other communication network. This fault can prevent the drive from receiving commands or sending feedback.
LOST COMMS fault in a Parker AC690 drive indicates that there is a communication break or disruption between the drive and its controlling device or network. This fault can occur if there is an issue with the communication link, such as a lost connection or incorrect configuration.
Common Causes of LOST COMMS Faults:
- Communication Cable Issues: Damaged, loose, or disconnected communication cables can interrupt the connection between the drive and external devices.
- Network Problems: Issues with the communication network, such as network congestion, hardware failures, or software glitches, can cause COMMS BREAK faults.
- Drive Configuration Errors: Incorrect communication settings or parameters on the drive can prevent proper communication.
- External Device Issues: Problems with the external device, such as a faulty PLC or HMI, can disrupt communication with the drive.
Troubleshooting Steps:
- Check Communication Cables:
- Inspect the communication cables for any signs of damage, corrosion, or loose connections.
- Ensure that the cables are securely connected to both the drive and the external device.
- Verify Network Connectivity:
- Check the status of the communication network and ensure that there are no connectivity issues.
- Try pinging the external device from the drive to verify network communication.
- Review Drive Configuration:
- Verify that the communication settings on the drive are correct and compatible with the external device.
- Check for any errors or warnings related to communication in the drive's status messages.
- Test External Device:
- Try communicating with the external device using another device or software to isolate the issue.
- If the external device is faulty, it may need to be repaired or replaced.
