PI PiezoWalk E-712 - Page 14

User Manual
E712T0010, valid for E-712.N1, E-712.1AM, E-712.1AN, .2AN, .3AN
CMo, BRo, 10/31/2024
Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 14 / 40
Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws
Fig. 9: Iterative relax procedure with default settings
INFORMATION
If the axis is driven by more than one PiezoWalk® drive and/or measured by more than one sensor, you can
proceed as follows to keep the position error during the relax procedure as low as possible:
1. Drive to the target position in closed-loop nanostepping mode.
2. After reaching the target position change from nanostepping to full-step mode (change of PiezoWalk
Driving Mode parameter).
3. Switch off closed-loop operation; this automatically triggers the simple relax procedure.
Switch to open-loop operation
Execute simple relax procedure
t = latest set target
p = current position
Return to selected
driving mode
END
Iterative relax procedure
started with
SVO <AxisID> 0
t = latest set target
p = current position
Switch to closed-loop operation
Set t for target
Execute analog mode motion (done by
the shearing components only)
START
i=20
i--
|t-p|<On Target Tolerance
OR
I<=0
OR
Timeout
(duration > 2 s)
|t-p|<On Target Tolerance/5
Timeout (duration > 2 s)