FeedforwardGainPff Parameter

Default Value: 0.0

Minimum Value: 0.0

Maximum Value: None

Units: None

Type: double

Tip: To automatically tune and optimize an axis in a new or existing system, you can use the EasyTune feature. This feature is in the Axes > Servo section of the Configure workspace in Automation1 Studio. After EasyTune completes, the optimized servo gains and servo filters are committed to the controller.

HARDWARE: This parameter applies only when used with the iXR3 or the XR3. If you use an XR3, it must have a QSL3e amplifier.

Use the FeedforwardGainPff parameter to set the position feedforward gain. This parameter adds a feedforward control effort in proportion with the position of the axis. It is usually used with flexure-based positioning stages. Do not use position feedforward with most air- or ball-bearing type stages. The units of this gain are N/m or Nm/rad when the FeedforwardGainNormalizationFactor Parameter is set correctly.