Purchased Part Package; Instructions For Using Piezoelectric Elements And Power Supplies - piezosystemjena d-Drive Bedienungsanleitung

4 purchased part package

Please check the completeness of the delivery after receiving the shipment:

®
d-Drive digital system
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power cord
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RS232 cable
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USB cable
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instruction manual
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CD-ROM with driver, software, and instruction manual

5 instructions for using piezoelectric elements and power supplies


Piezoelectric actuators from piezosystem jena are controlled by voltages of up to 150 V.
These values can be quite hazardous. Therefore, read the installation instructions carefully
and ensure that only authorized personnel handle the power supply.

After transportation, piezoelectric actuators should be allowed to adapt to room temperature
for approximately 2 hours before being switched on.

Piezoelectric actuators are made from ceramic materials with and without metallic casings.
The piezo-ceramic is a relatively brittle material. This should be noted when handling
piezoelectric actuators. All piezo elements are sensitive to bending or shock forces.
Due to the piezoelectric effect, piezo actuators can generate electrical charges by changing
the mechanical load or the temperature, or by such actions as those described above.

Piezoelectric actuators are able to work under high compressive forces. Only actuators with
a pre-load can be used under tensile loads (these tensile forces must be less then the pre-
load, given in the data sheet). Please note that the acceleration of the ceramic material
(e.g., caused by fall down, discharging, or high dynamic application) will occur.

After excitation of the actuators by a voltage in the upper control range, the ceramic will
move and generate an opposite high voltage after disconnection.

Heating of the ceramic material will occur during dynamic operation and is caused by
structure conditional loss processes. This may cause failure if the temperature exceeds the
specified values cited below. With increasing temperature, up to the Curie temperature T
(usual values approx. 140°C - 250°C), the piezoelectric effect disappears. We recommend
working in temperatures up to T

Piezoelectric actuators, such as stacks or other devices, work electrically as a capacitor.
These elements are able to store electrical energy over a long period of time (up to some
days) and the stored energy may be dangerous.

If the actuator remains connected to the drive electronics, it will be unloaded within a
second after shutdown and quickly reaches harmless voltage values.

Piezo actuators can only generate voltages by warming or cooling (caused by the
longitudinal change). The discharge potential should not be ignored due to the inner
capacitance. This effect is insignificant at room temperature.

Piezo actuators from piezosystem jena are adjusted and glued. Any opening of the unit
will cause misalignment or possible malfunction, and will result in the invalidation of the
guarantee.

Please only use original parts from piezosystem jena.

Please contact piezosystem jena, or your local representative, if there are any problems
with your actuator or power supply.
Caution!
Shock forces may damage the built-in ceramic elements. Please avoid such forces, and
handle the units with care, otherwise the guarantee will become invalid.
Geschäftsführer: Dr. Bernt Götz • Telefon 03641/66880 • Fax 03641/668866 • www.piezojena.com
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/2 (normally up to 80°C).
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