Can you use the Energy Savings (nLd) motor control type on the ATV930 drive run a constant torque load like a grain leg?

Issue:
Apply nLd energy savings motor control type on a ATV930 to run at constant torque load.

Product Line:
ATV930 in nld motor control type nld

Environment:
All

Cause:
NA

Resolution:
No, nLd control law is not recommended for constant torque or heavy duty applications.

Constant torque or Heavy Duty applications will rarely operate in  a condition where the drive is able to reduce the motor current, and using this mode may result in poor speed/torque regulation in those applications.
This mode is primarily intended for fan or pump loads.

Released for: Schneider Electric Canada