3 Product Description
E-625 Piezo Servo Controller
PZ166E
Version: 2.0.0
7
In this Chapter
Accessories ................................................................................................................................... 12
3.1
Features and Applications
The E-625 piezo servo controller is a benchtop device that provides closed-loop and open-loop
control of the displacement of the positioner. The models E-625.CR and E-625.C0 work with
capacitive sensors that measure the position directly and without contact.
The integrated E-802 servo controller submodule has the slew rate limiter, the notch filter, and
the servo loop.
The notch filter improves the stability and enables a wider broad-band operation closer to the
mechanical resonant frequency of the piezo system.
The E-625.CR module is equipped with an E-816 computer interface submodule. This enables it
to offer the following additional functions:
Multi-axis network:
Several E-625.CR can be controlled from one single interface. A special network cable
sets up the communication between the individual controllers.
Waveform memory:
The user can save any function values in an internal table and output these with a
trigger. This makes it possible to reliably repeat and simply control motion profiles.
General Command Set (GCS):
For uniform control of nano and micropositioning systems, the universal command set
from PI is used. With GCS, control is independent of the hardware used so that various
positioning systems can be controlled together or new systems can be used with
minimum programming effort.
3.2
Model Overview
There are 2 standard versions of the E-625. They differ in regard to the available control modes
and the possibilities for use in network operation.
3
Product Description
