Cause : Overcurrent comes when drive sensors detected an output current greater than the specified overcurrent level. An "Overcurrent" fault on a Yaskawa V1000 drive typically indicates that the current flowing through the drive's output is exceeding the specified limit.
This fault can occur due to various reasons, including excessive load on the motor, electrical issues, or configuration errors.
Here's how you can address this fault:
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Reduce Load: If the motor is experiencing an excessive load, try reducing the load or adjusting the application parameters to operate within the rated capacity of the drive.
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Inspect Mechanical Components: Check the mechanical components of the system, including the motor, coupling, gearbox (if applicable), and load. Ensure that they are functioning properly and not causing excessive strain on the drive.
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Check Wiring: Inspect the wiring connected to the drive, motor, and power supply. Loose or damaged wiring can cause electrical issues, including overcurrent faults. Make sure all connections are secure and properly terminated.
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Verify Motor Parameters: Double-check the motor parameters and configuration settings in the drive's setup. Ensure that they match the specifications of the motor and are configured correctly for your application.
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Review Drive Parameters: Check the drive's parameters related to current limits and protection settings. Adjust these parameters if necessary to provide adequate protection while avoiding unnecessary trips.
The motor has been damaged due to overheating or the motor insulation is damaged
• Check the insulation resistance.
• Replace the motor.
One of the motor cables has shorted out or there is a grounding problem
• Check the motor cables.
• Remove the short circuit and reapply power to the drive.
• Check the resistance between the motor cables and the ground terminal .
• Replace damaged cables.
