piezosystemjena NV40/3 User manual

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Bedienungsanleitung
Spannungsverstärker
instruction manual
voltage amplifier
NV40/3
NV40/3CLE
NV120/1
NV120/1CLE
Bitte lesen Sie sorgfältig die Bedienungsanleitung vor dem Einschalten des Gerätes. Beachten Sie
bitte insbesondere die Sicherheitshinweise!
Read carefully before switching on the power! Please see also instructions for safety when using
piezoelectric actuators and power supplies!

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Table of contents
1introduction.................................................................................................................30
2certification of piezosystem jena.................................................................................30
3declaration of conformity.............................................................................................31
4purchased part package .............................................................................................32
5instructions for using piezo electrical elements and power supplies............................32
6safety instructions.......................................................................................................33
6.1 installation, power supply............................................................................................34
6.2 operation.....................................................................................................................34
6.3 maintenance and inspection .......................................................................................35
6.4 environmental conditions............................................................................................ 35
7NV40/3, NV40/3CLE, NV120/1 and NV120/1CLE.......................................................36
7.1 key words ...................................................................................................................36
7.2 user elements / connections .......................................................................................37
7.2.1 front panel...................................................................................................................37
7.2.2 back panel..................................................................................................................38
7.3 introduction.................................................................................................................38
7.3.1 block diagram.............................................................................................................39
7.3.2 amplifier with integrated feedback controller............................................................... 39
7.3.3 amplifier without integrated feedback controller..........................................................39
7.4 initiation ......................................................................................................................39
7.4.1 main supply voltage....................................................................................................39
7.4.2 connecting piezo actuator...........................................................................................40
7.4.3 graphic display NV40/3, NV40/3CLE ..........................................................................40
7.4.4 graphic display NV120/1, NV120/1CLE ......................................................................40
8handling......................................................................................................................41
8.1 manual control............................................................................................................41
8.2 controlling via modulation / monitor.............................................................................41
8.2.1 modulation..................................................................................................................41
8.2.2 monitor NV40/3CLE, NV120/1CLE .............................................................................41
8.2.3 monitor NV40/3, NV120/1...........................................................................................42
8.3 controlling via interface...............................................................................................43
8.3.1 configuration RS232...................................................................................................43
8.3.2 command list overview................................................................................................44
8.3.3 commands..................................................................................................................45
8.3.4 examples....................................................................................................................47
8.3.5 calibration of encoder .................................................................................................48
8.4 technical data .............................................................................................................50
8.5 pin assignment ...........................................................................................................51
8.5.1 output connector for actuator D-SUB15pin..................................................................51
8.5.2 MOD/MON connector D-SUB25pin.............................................................................51
8.5.3 RS232 D-SUB9pin.....................................................................................................52
8.5.4 USB 1.1...................................................................................................................... 52
8.5.5 main supply voltage....................................................................................................52
9trouble shooting..........................................................................................................53
10 your notes................................................................................................................... 54

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1 introduction
This manual describes the piezo amplifiers NV40/3, NV40/3CLE, NV120/1 and NV120/1CLE
from piezosystem jena. You will also find additional information regarding piezoelectric
products.
definition: All systems from piezosystem jena such as electronics, actuators and optical
systems are called units.
If you have any problems please contact the manufacturer of the system: piezosystem jena,
Pruessingstrasse 27, 07745 Jena. phone: [phone]
2 certification of piezosystem jena
The company piezosystem jena GmbH has been certified by DIN EN ISO 9001 since 1999.

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This instruction manual includes important information for using piezo
actuators. Please take time and read this information. Piezo positioning
systems are mechanical systems with highest precision. Correct handling
guarantees the precision over long time.
3 declaration of conformity

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32
4 purchased part package
Please check the completeness of the delivery after receiving the shipment:
voltage amplifier NV40/3 (NV40/3CLE, NV120/1, NV120/1CLE)
wide range power supply 24VDC
MOD/MON cable
RS232 cable
USB cable
instruction manual
CD-ROM with drivers, software and instruction manual
5 instructions for using piezo electrical elements and power supplies
Piezoelectric actuators from piezosystem jena are controlled by voltages up to 150V.
These values can be quite hazardously. Therefore read the installation instructions carefully
and only authorized personal should handle the power supply.
After transportation, piezoelectric actuators should be allowed to adapt for approximately
2 hours to the 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
piezoelectrical 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 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 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
specified values cited below.
With increasing temperature, up to the Curie temperature (usual values approx.
140°C - 250°C), the piezoelectric effect disappears.
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 (caused by the
longitudinal change). The discharge potential should not be ignored due to the inner
capacitance. This effect is insignificantly at usual room temperature.
Piezo-actuators from piezosystem jena are adjusted and glued. Any opening of the unit
will cause misalignment or possible malfunction and the guarantee will be lost.
Please use only 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 be lost.

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6 safety instructions
Icons:
RISK OF ELECTRIC SHOCK! Indicates that a risk of electric shock is present and the
associated warning should be observed.
CAUTION! REFER TO OPERATOR´S MANUAL –Refer to your operator’s manual for
additional information, such as important operating and maintenance instructions.
RISK OF ELECTRIC SHOCK!
Do not open the units! There are no user serviceable parts inside and opening or removing
covers may expose you to dangerous shock hazards or other risks. Refer all servicing to
qualified service personnel.
Do not spill any liquids into the cabinet or use the units near water.
CAUTION!
Allow adequate ventilation around the units so that heat can properly dissipate. Do not
block ventilated openings or place the units near a radiator, oven or other heat sources. Do
not put anything on top of the units except those that are designed for that purpose (e.g.
actuators).
Work with the units only in a clean and dry environment! Only specially prepared units (e.g.
actuators) can work under other conditions!
Please use only original parts from piezosystem jena.
piezosystem jena does not give any warranty for damages or malfunction caused by
additional parts not supplied by piezosystem jena. Additional cables or connectors will
change the calibration and other specified data. This can change the specified properties of
the units and cause them to malfunction.
Do not place the units on a sloping or unstable cart, stand or table as they may fall or not
work accurately.
Piezo elements are sensitive systems capable of the highest positioning accuracy. They will
demonstrate their excellent properties only if they are handled correctly! Please mount
them properly only at the special mounting points.
Immediately unplug your unit from the wall outlet and refer servicing to qualified service
personnel under the following conditions:
when the power supply cord or plug is damaged
if cleaning supplies or liquid has been spilled or objects have fallen into the unit
if the unit has been exposed to rain or water
if the unit has been dropped or the housing is damaged

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6.1 installation, power supply
RISK OF ELECTRIC SHOCK
Do not insert or unplug the power plug with wet hands, as this may result in electrical
shock.
Do not install in rooms, where inflammable substances are stored. If flammable substances
come into contact with electrical parts inside, this may result in fire or electrical shock.
Do not damage or modify the power cord. Also, do not place heavy objects on the power
cord, or pull on or excessively bend it, as this could cause electrical damage and result in a
fire or electrical shock.
Always grasp the plug portion when unplugging the power plug. Pulling on the power cord
may expose or snap the core wire, or otherwise damage the power cord. If the cord is
damaged, this could cause an electricity leak and result in a fire or electrical shock.
CAUTION!
Do not use accessories other than the provided (e.g. power cord). Plug the power cord only
in grounding equipment conductor power sockets.
Do not place any heavy objects on any cables (e.g. power cords, sensor cables, actuator
cables, optical cables).
Do not block ventilated openings or place the units near a radiator, oven or other heat
sources. Do not put anything on top oft he units except those that are designed for that
purposes (e.g. actuators).
Plug the power cord completely in the grounding equipment conductor power sockets so
that it can not loosening inadvertently.
Leave sufficient space around the power plug so that it can be unplugged easily. If objects
are placed around the power plug, you will be unable to unplug it in an emergency.
Install the system in that way that the on/off-switch is accessible without problems.
6.2 operation
Please note the area with general safety precautions (see section 6ons”)
RISK OF ELECTRIC SHOCK!
Do not spill inflammable substances inside the voltage amplifier. If these items come into
contact with an electrical component inside the voltage amplifier, this may result in a fire or
electrical shock.
CAUTION!
If the voltage amplifier emits smoke, big heat or unusual smells, immediately turn off the
power switch and unplug the power plug from the outlet. Then contact our technical service.

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6.3 maintenance and inspection
CAUTION!
When cleaning the exterior box of the voltage amplifier, first turn off the power switch and
unplug the power plug. Failure to observe these items may result in a fire or electrical
shock.
Cleaning the exterior box using a firmly wrung-out cloth. Do not use alcohols, benzene,
paint thinner or other inflammable substances. If flammable substances come into contact
with an electrical component inside the voltage amplifier, this may result in a fire or
electrical shock.
6.4 environmental conditions
The amplifier can be used:
indoor
altitude up to 2000 m
temperature: 5 ... 35 °C
relative humidity: 5 ... 95% (non-condensing)
The recommended environmental conditions are:
indoor
altitude up to 2000 m
temperature: 20...22 °C
relative humidity: 5 ... 80% (non-condensing)

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7 NV40/3, NV40/3CLE, NV120/1 and NV120/1CLE
These voltage amplifiers are very similar. In case of information which do refer to the
NV40/3CLE or NV120/1CLE the symbol “→ not available in NV40/3, NV120/1” will point it.
NV40/3
piezo amplifier for up to 3 PZT actuators; RS232/USB interface; for piezo actuating systems
without feed back sensor inside
NV40/3CLE
piezo amplifier for up to 3 PZT actuators; RS232/USB interface; for piezo actuating systems
with feed back sensors inside (strain gauge or capacitive)
NV120/1
piezo amplifier for one PZT actuator; RS232/USB interface; for piezo actuating system
without feed back sensor inside
NV120/1CLE
piezo amplifier for one PZT actuator; RS232/USB interface; for piezo actuating system with
feed back sensor inside (strain gauge or capacitive)
7.1 key words
GRAPHIC DISPLAY
dimmable 3.5“ TFT full colour graphic, 320x240 Pixel; constantly shows all values and status
information
ENCODER KNOB
for manually voltage or position adjustment and for switching on/off the CLOSED LOOP
mode (NV40/3CLE only)
CLOSED LOOP
operating mode for piezo actuating systems with integrated feed back sensor system,
position accuracy is constantly controlled
OPEN LOOP
operating mode for actuating systems without feedback sensor inside; no position
information available
MODULATION INPUT
the amplifier can be controlled by an applied analogue voltage signal from 0V…+10V
(see 8.2.1)
MONITOR OUTPUT
output voltage signal which corresponds with the position of the piezo actuating system
(CLOSED LOOP mode) or with the applied voltage signal (OPEN LOOP mode), (see 8.2.2)

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PC INTERFACE
serial RS232 interface or USB1.1 (see 8.3)
REMOTE CONTROL
The remote control switches all manual controls (ENCODER KNOB and MODULATION) off
or on. Please pay attention only if the remote control is switched on (1) it will be possible to
use the „set“ command.
HYPER TERMINAL PROGRAM
This software enables to control the piezo actuating system by using the RS232 interface.
The available commands are described in chapter 8.3.2.
ASI function (Automatical Sensor Identification)
NV40/3CLE, NV120/1CLE amplifiers can be used with strain gauge feed back sensors as
well as with capacitive feed back sensors. The ASI function makes it possible to show the
name of the actuator and the measurement system.
Soft Start
Initialization after turning-on procedure. During initialization sequence the piezo electrical
actuator is controlled for approximately 10 seconds with a voltage signal from -20V up to
130V. Please note: the actuating system is moving!
MAIN SUPPLY VOLTAGE
The main supply voltage to the amplifier is 24VDC; an external wide range power supply is
included in the shipment
7.2 user elements / connections
7.2.1 front panel
Graphic display
encoder knob
channel 1
encoder knob
channel 2
encoder knob
channel 3