PI PiezoWalk E-712 - Introduction; Documentation Overview; Hardware Components

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 3 / 40
Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws
1 Introduction
PiezoWalk® drives can be used wherever loads must be
positioned very precisely over long distances and then
perhaps subjected to small-amplitude dynamic
adjustment. The following types of PiezoWalk® drives are
available:
• NEXLINE® drive:
Suitable for high loads (develops forces of several
hundred N), operating voltage range -250 to
+250 V
• NEXACT® drive:
Develops forces in the range from 10 to 20 N,
operating voltage range -10 to 45 V
• PICMAWalk drive:
Achieves feed forces up to 50 N and holding
forces to 60 N, maximum velocity is 15 mm/s,
operating voltage range -20 to 120 V
Fig. 1: N-216.2A1 NEXLINE
®
drive, 20 mm, 600 N,
linear encoder, 5 nm resolution
The feed is based on the walking motion of the integrated piezo drive modules. For that purpose, the piezo
actuators of the piezo driving modules are provided with cyclic voltage signals. The piezo actuators act on a
runner that is coupled to the load to be moved.
The E-711/E-712 digital multi-channel piezo controller system supports PiezoWalk® drives via the E-712.N1 digital
processor and interface module. The E-712.N1 module is also the centerpiece of the E-712.1AN, .2AN and .3AN
Digital Controllers for PICMAWalk Walking Drives with Incremental Sensors. The firmware of the E-712.N1 module
(also referred to as “PiezoWalk® firmware”) provides multiple driving modes so that the system can be optimally
adapted to the application. For example, while in full-step mode the runner can be moved over larger distances
with maximum velocity and maximum force, nanostepping mode allows steady motion with uniform velocity.
1.1 Documentation Overview
The standard E-712 User Manual (PZ195E) and the E-712 Commands Manual (PZ233E) are also valid for an E-
711/E-712 system for PiezoWalk® drives, except for the information superseded by this User Manual.
1.2 Hardware Components
For descriptions, specifications and pin assignments of the hardware components of your E-711/E-712 system for
PiezoWalk® drives see the E-712 User Manual.