Search FAQs
You are currently viewing the content available in Vietnam. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
What would cause a pump to oscillate (or surge) up and down when ramping up to speed on the ATS48 soft starter?
Issue:
A pump is oscillating (or surging) up and down when ramping up to speed on the ATS48 soft starter?
Product line:
Altistart ATS48
Environment:
All models, all serial numbers
Cause:
Excessive motor slip
Resolution:
In the drC menu, reduce LSC. Generally, LSC = 30 will suffice.
LSC = Stator Loss Compensation
Oscillations are most common when controlling a motor with excessive slip.
Another option is to turn off the torque control. In the drC menu, set CLP = OFF.
Refer to the ATS48 Programming manual S1A37491
A pump is oscillating (or surging) up and down when ramping up to speed on the ATS48 soft starter?
Product line:
Altistart ATS48
Environment:
All models, all serial numbers
Cause:
Excessive motor slip
Resolution:
In the drC menu, reduce LSC. Generally, LSC = 30 will suffice.
LSC = Stator Loss Compensation
Oscillations are most common when controlling a motor with excessive slip.
Another option is to turn off the torque control. In the drC menu, set CLP = OFF.
Refer to the ATS48 Programming manual S1A37491
Released for:Schneider Electric Vietnam
Explore more
Range:
Explore more
Range: