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OI Roundtable

Got Questions Get Answers => Troubleshooting 101 => Topic started by: rickpend on October 06, 2016, 01:15:PM

Title: What is Negative Slip F Alarm on a Parker AC Drive?
Post by: rickpend on October 06, 2016, 01:15:PM
What is Negative Slip F Alarm on a Parker AC Drive?

What is Parker NEGATIVE SLIP F alarm mean on a Parker AC drive? I'm looking for a simple explanation as to what Negative Slip F means.

And how do you clear the "negative slip f" alarm from a Parker AC drive?
Title: Re: What is Negative Slip F Alarm on a Parker AC Drive?
Post by: tomtester on October 07, 2016, 11:02:AM
Quote from: rickpend on October 06, 2016, 01:15:PM
What is Negative Slip F Alarm on a Parker AC Drive?

Here's what the manual says: Autotune has calculated a negative slip frequency, which is not valid. Nameplate rpm may have been set to a value higher than the base speed of the motor.

Check nameplate rpm, base frequency, and pole pairs are correct.

This seems like a calibration issue with the RPM setting, you'll need to look at this value and see where you have it set..
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