The percentage value is like a stretching factor for the width of the measuring pulses (voltage blocks). Inside the voltage blocks the current will increase linear. That's why the current amplitude will increase proportional to the width too.
With setting 100% the PPI function behaves like with older firmware versions.
Contained in which products? Servo Inverter i700, V1: no implementation provided for V1
Servo Inverter i700, V2: from V02.15.02.12693
Application:
When using some synchronous motor types, it may happen that the pole position values determined by PPI at standstill have a greater deviation from the actual pollage value (determined with PPI-360°). If highly scattered pollage values occur, the cause may be that the "operating point" of the motor is not hit when the PPI is moved at standstill, although the identification method varies the required measurement signals (current pulses) within a certain range. Using the new setting parameter, the current amplitude for the measurement signals can now be adjusted if necessary to meet the "operating point" of the synchronous motor.
Experience shows that motors from other manufacturers can be particularly affected. In the case of Lenze motors, it can be assumed that the PPI method works without any adjustment of the current amplitude via the new parameter.