What does excessive ripple current mean?

[travis]

What does Excessive Ripple Current mean?

Hello,
What is a "Excessive Ripple Current Alarm" in layman's terms? Can someone provide a basic explanation or definition of a Excessive Ripple Current message and its possible causes. I'm looking for tips on troubleshooting this type of fault from the perspective of a maintenance techn. Thank you!

• Excessive Ripple Current Fault
• Excessive Ripple Current Alarm
• Excessive Ripple Current Problem
• Excessive Ripple Current Message

[3rdshiftguy]

What does excessive ripple current mean?

Definition of excessive ripple current: Unwanted variation in current flow most often caused by an incomplete suppression of an AC voltage waveform. It is a common occurrence in DC circuits relating to motion control systems.

Excessive ripple current in a new motor system can be directly related to the tuning of the drive and should be addressed from there.

Excessive ripple current in an existing system may a symptom of changes in the loading of the motor or possibly the early stages of motor or drive failure.

[william21]

So what you're saying is that excessive ripple current can be fixed by tuning?