Director: Dr. Bernt Götz • phone +49 3641/66880 • fax +49 3641/668866
http://www.piezosystem.com/piezocomposite/
15
4
Purchased part package
Please check the completeness of the delivery after receiving the shipment:
piezo amplifier
RCV 1000/3
power plug
instruction manual
5
Instructions for using piezo electrical elements and power supplies
Piezocomposite Actuators from
piezosystem jena
are controlled by voltages up to 1
000 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, Piezocomposite Actuators should be allowed to adapt to room tempera-
ture for approximately 2 hours before being switched on.
Piezocomposite 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 Piezo-
composite Actuators. All piezo elements are sensitive to bending or shock forces.
Due to the piezoelectric effect, Piezocomposite Actuators can generate electrical charges by
changing the mechanical load or the temperature, or by actions such as the ones described
above.
Piezocomposite Actuators are able to work under high compressive forces. Only actuators
with a pre-load can be used under tensile forces (these tensile forces must be less than the
pre-load given in the data sheet). Please note that acceleration of the ceramic mate
rial (e. g.
caused by fall down, discharging, or high dynamic application) will generate tensile forces.
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 specified values
cited below. With increasing temperature up to the Curie temperature T
C
, (usual values
approx. 140
°C to 350 °C) the piezoelectric effect disappears. We recommend working in
temperatures up to T
C
/2.
Piezocomposite 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 discharged within a second
after shutdown and quickly reaches harmless voltage values.
Piezocomposite Actuators can generate voltages only by warming or cooling. The discharge
potential due to the inner capacitance should not be ignored. This effect is insignificant at
usual room temperature.
Piezocomposite Actuators from
piezosystem jena
are adjusted and glued. Any opening of the
unit will cause misalignment or possible malfunction and will result in the loss of the guarantee.
Please only use original parts from
piezosystem jena
.
Please contact
piezosystem jena
or our local representative if there are any problems with
your actuator or power supply. You will find the representative for the respective country on
www.piezosystem.com/company/worldwide.
Caution!
Shock forces may damage the built-in ceramic elements. Please avoid such forces, and
handle the units with care, otherwise the guarantee will be lost.
