Networks & drives

PowerFlex 525 hunts at 0.5 Hz on a metering screw — skip freq or a real tune?

• Ruben Castillo · Drives

  0.5 Hz on a 525 is the bottom of the well. Static tune, then a rotating tune with the screw empty if the OEM allows it. Bump min freq so you aren't asking the drive to hold a load it can't observe. If you need true low-speed torque, that's a vector motor and a 755, not skip-freq theater.