What can cause a Load Slipping (ANF) fault on an ATV340 series drive?
Issue:
ATV340 drive shuts down with ANF Load Slipping Fault.
Product Line:
ATV340 series
Environment:
In applications using an encoder
Cause:
The difference between the output frequency and the speed feedback is not correct.
Resolution:
If the torque control function is used and if the encoder is assigned to speed feedback:
ATV340 drive shuts down with ANF Load Slipping Fault.
Product Line:
ATV340 series
Environment:
In applications using an encoder
Cause:
The difference between the output frequency and the speed feedback is not correct.
Resolution:
- Confirm the drive rating according to the application (motor, load, and so on.)
- Verify the motor, gain, and stability parameters.
- Add a braking resistor.
- Verify the mechanical coupling and wiring of the encoder.
If the torque control function is used and if the encoder is assigned to speed feedback:
- Set [Load slip detection] Sdd = [No] no.
- Set both [Positive deadband] dbp and [Negative deadband] dbn to a value less than 10% of the nominal motor frequency.
Released for: Schneider Electric USA
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales inquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Center
Find support resources for all your needs, in one place.