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 19 / 40
Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws
2. Assign the PiezoWalk channel to the axis:
When you are working in the Device Parameter Configuration window: Select the Axis Definition
parameter group for the axis to be configured.
The assignment is done via the Driving Factor Of Piezo parameters (IDs 0x09000000, 0x09000001,
0x09000002, …) as follows: for the piezo amplifier channel which is assigned to the PiezoWalk channel as
the second clamping voltage (via the PiezoWalk Clamp Channel 2 parameter, ID 0x09000201), set the
Driving Factor Of Piezo parameter to 1.0 (if the axis is driven only by that PiezoWalk channel). For the
other piezo amplifier channels assigned to the PiezoWalk channel set the Driving Factor Of Piezo
parameters to 0.
Advanced applications:
Multiple PiezoWalk channels can be assigned to the axis by setting the corresponding Driving
Factor Of Piezo parameters to values <1, mirroring the PiezoWalk channel contributions in axis
motion.
Customized PiezoWalk® drives may need only one clamping voltage due to their internal wiring. In
that case, use the Driving Factor Of Piezo parameter of that piezo amplifier channel to connect
the PiezoWalk channel to the axis (depending on the drive wiring, the required amplifier channel
is assigned either to PiezoWalk Clamp Channel 1 or 2, while the other PiezoWalk Clamp Channel
parameter is set to 0).
INFORMATION
The piezo amplifier channel dedicated to shearing component 1 corresponds to that dedicated to clamping
component 1, and the piezo amplifier channel of shearing component 2 corresponds to that of clamping
component 2. In nanostepping mode, this means, for example, that when the clamping voltage 1 is higher
than the negative clamping free voltage, the first pair of shearing components is in contact with the runner.
Increasing voltage will cause positive displacement of the shearing component pair that is in contact with the
runner and hence motion in positive direction.
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