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FeedforwardGainPff Parameter

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.