ElmoMC SimplIQ Digital Servo Drives-Bell Command Reference - Manual (Page 302)

Normally, the Digital Feedback Technologies tuning tools set the values for KP[1],
KI[1], and PF[13].
9.5. Pre-filter and Limiter
This block prevents excessive current overshooting.
The elements of this block are:
PF[13] sets a 1 st order low-pass filter at the current demand input.
PF[14] limits the current command increase in one sampling time.
PF[7] and PF[8] together set a dynamic limit of the current command rate, to prevent
overshooting the device-rated current, even when the current command jumps its full
range in an instance.
SimplIQ for Steppers Application Note The Current Controller
MAN-STECR (Ver. 1.1)
103