PI PiezoWalk E-712 - Special Characteristics of Picmawalk Drives

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 7 / 40
Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws
3.3 Special Characteristics of PICMAWalk Drives
A PICMAWalk piezo drive module consists of four pairs of PICMA® piezo actuators. The actuator pairs move a
runner by coordinated shear and clamping motions.
The voltage range for the PICMA® piezo actuators is -20 V to + 120 V.
Figure 1: Sketch of the PICMAWalk walking drive
1: Actuator pairs 1 to 4
2: Contact part
3: Runner
PICMAWalk walking drives require four voltage signals for shearing (D1, D2) and for clamping (C1, C2). With the E-
711/E-712 digital multi-channel piezo controller system, PICMAWalk drives are controlled in the same way as
NEXACT® drives. The only difference is the voltage range.
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