Newport NPC1USB, User Manual, Page: 8 / 48

NPC1USB Voltage Piezo USB Amplifier
1.3 Purchased Part Package
Please check the completeness of the delivery after receiving the shipment:
•
Voltage amplifier NPC1USB
•
Power supply 24 VDC (Sold Separately – Model: CONEX-PS recommended)
•
USB cable
•
Quick Start Guide (available on Newport.com)
•
.INF Drivers (available on Newport.com)
1.4 Instructions for Using Piezo Electrical Elements and Power Supplies
• Piezoelectric actuators from Newport Corporation are controlled by voltages up to
150V. These values can be quite hazardously. Therefore, please read the installation
instructions carefully.Only authorized personal should handle the power supply.
•
After transportation, piezoelectric actuators should be allowed to sit for
approximately 2 hours to adapt to room temperature 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 piezo electric 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 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 than the pre-load, given in the data sheet).
• Please note that the acceleration of the ceramic material (e.g., caused by a fall,
discharging, or high dynamic applications) 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. Failure may occur if the temperature exceeds
specified values cited below.
•
The piezoelectric effect disappears with increasing temperature up to the Curie
temperature (usual values approx. 140–250 °C).
•
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 generate voltages by warming or cooling only (a result of
longitudinal change). The discharge potential should not be ignored due to the inner
capacitance. This effect is insignificantly at room temperature.
• Piezo-actuators from Newport Corporation are adjusted and glued. Any opening of
the unit will cause misalignment or possible malfunction and the guarantee will be
voided.
• Please use only original parts from Newport Corporation.
•
Please contact Newport Corporation or your local representative, if there are any
problems with your actuator or power supply.
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