User Manual PZ235E
Contents
1. 1 It is intended to be used in interior spaces and in an environment which is free of dirt oil and lubricants The E 831 05 must be installed in a suitable case before start up The E 831 05 is designed and intended for driving capacitive loads e g piezo ceramic actuators The E 831 05 must not be used for purposes other than those named in this user manual In particular the E 831 05 must not be used to drive ohmic or inductive loads The E 831 05 can be used for static as well as dynamic applications The E 831 05 is intended for open loop control Release 1 0 0 info pi ws Page 4 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E 1 2 General Safety Instructions The E 831 05 is built according to state of the art technology and recognized safety standards Improper use can result in personal injury and or damage to the E 831 05 gt Only use the E 831 05 for its intended purpose and only use it if it is in a good working order gt Read the user manual gt Immediately eliminate any faults and malfunctions that are likely to affect safety The operator is responsible for the correct installation and operation of the E 831 05 1 2 1 Organizational Measures 1 2 1 1 User Manual Always keep this user manual next to the E 831 05 If the user manual is lost or damaged contact our customer service department gt Add all information given by the manufacturer to the user manual for example suppl2. metal case that is connected to a protective earth conductor gt Connect at least one of the GND pins of the E 831 05 to the case in which the E 831 05 is installed so that it is conductive Make sure that the contact resistance is lt 0 1 ohm at 25 A at all connection points relevant for the function of the protective earth conductor gt If the protective earth conductor has to be temporarily removed e g for modifications reconnect the protective earth conductor before starting the E 831 05 up again The E 831 05 contains electrostatically sensitive equipment ESD and can be damaged if handled improperly gt Avoid touching assemblies pins and PCB traces gt Before you touch the E 831 05 discharge yourself of any electric charges Wear an antistatic wrist strap or Before touching an electronic component briefly touch a conducting grounded object Only handle and store the E 831 05 in environments that dissipate existing static charges to earth in a controlled way and prevent electrostatic charges ESD workplace or electrostatically protected area in short EPA Release 1 0 0 info pi ws Page 6 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E 1 2 3 Measures during Start Up and Operation If the E 831 05 is operated without a case live parts will be accessible Touching the live parts can result in serious injury or death Electrical magnetic and electromagnetic fields emitted by live
3. parts can disturb the E 831 05 and or the environment Only operate the E 831 05 when it is installed in a shielded case that securely encloses all live parts and fulfills the requirements of electromagnetic compatibility If a protective earth conductor is not or not properly connected dangerous touch voltages can occur and there is a risk of electric shock In the case of malfunction or failure of the system touching the E 831 05 can result in slight injuries Only operate the E 831 05 when a protective earth conductor is connected Supply voltages that are too high or incorrectly connected can cause damage to the module No limiting components are included gt Do not exceed the supply voltage range see p 9 for which the E 831 05 is specified Only operate the E 831 05 when the supply voltages are properly connected for pin assignment see p 10 1 2 4 Safety Measures during Maintenance The E 831 05 is maintenance free 2 Operating Principle Low voltage PZTs can be driven with an extended voltage range of 30 V to 130 V This range can be fully covered by the E 831 Piezo actuators are to a first approximation capacitors which means the current flow depends on the frequency of operation or more generally the slew rate of a changing signal In static operation almost no power will be needed E 831 amplifier modules can be used for applications requiring a signal amplifier The operation mode is that of a
4. power amplifier with a fixed gain of 10 This means for an output voltage swing of 20 to 120 V at the HV OUT pin the control voltage at the CONTROL IN pin has to run from 2 to 12 V The output is fully compensated for capacitive loads from 0 uF to 10 uF which is the typical range of Pl s low voltage piezo actuators E 831 05 small signal bandwidth is about 15 kHz The output is subjected to 2 current limits for short periods it can provide up to 250 mA but the long term limit is 100 mA This allows to load a capacitor relatively fast but still makes the output circuit short circuit safe without time limitation In the case temperature exceeds 75 C can be reached after a few minutes with maximum current an internal sensor will shut down the output stage until the temperature is below 65 C Release 1 0 0 info pi ws Page 7 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E 3 Amplifier Description 3 1 3 2 Block Diagram CONTROL IN 2 12U 20 120U E 831 05 GND Supply Input 28 to 38 V 127 to 137 V E 831 05 Schematic diagram GND lines are connected inside the module For best performance supply voltages should be generated by a linear power supply This allows taking full advantage of the excellent noise level of the amplifier module If for space and power reasons a switched supply must be used the one of the companion E 841 or E 842 modules is recommended Naturally the switching freque
5. Piezo Nano Positioning PI PZ235E User Manual E 831 05 Piezo Amplifier Module Release 1 0 0 Date 2012 03 06 This document describes the following product B E 831 05 Piezo Amplifier Miniature OEM Module 1 Channel 30 to 130 V Physik Instrumente PI GmbH amp Co KG Auf der R merstr 1 76228 Karlsruhe Germany Tel 49 721 4846 0 Fax 49 721 4846 1019 Moving the NanoWorld www pi ws info pi ws www pi ws E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E PI Declaration of Conformity according to DIN EN ISO IEC 17050 1 Manufacturer Physik Instrumente PI GmbH amp Co KG Manufacturer s Auf der Roemerstrafte 1 C Address D 76228 Karlsruhe Germany The manufacturer hereby declares that the product Product Name Piezo Amplifier OEM Module Model Numbers E 831 Product Options all model types complies with the following European directives 2006 95 EC Low Voltage Directive LVD 2004 108 EC EMC Directive The applied standards certifying the conformity are listed below Electrical Safety EN 61010 1 2011 07 Electromagnetic Emission EN 61000 6 3 2007 09 EN 55011 2010 05 Electromagnetic Immunity EN 61000 6 1 2007 10 Electrical equipment which is intended to be integrated in other electrical equipment only conforms to the cited EMC Standards and normative documents if the user ensures a compliant connection when implementing the total sys
6. by commas in drawings Release 1 0 0 info pi ws Page 10
7. ements or Technical Notes Only use the device on the basis of the complete user manual Missing information due to an incomplete user manual can lead to slight injury as well as property damage Only install and operate the E 831 05 after having read and understood this user manual 1 2 1 2 Personnel Qualification The E 831 05 may only be started up operated maintained and cleaned by authorized and qualified staff 1 2 2 Safety Measures during Installation gt Install the E 831 05 near the power source so that it can be quickly and easily disconnected from the power source Release 1 0 0 info pi ws Page 5 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E If the E 831 05 is operated without a case live parts will be accessible Touching the live parts can result in serious injury or death Electrical magnetic and electromagnetic fields emitted by live parts can disturb the E 831 05 and or the environment gt Before start up install the E 831 05 in a shielded case that securely encloses all live parts gt Make sure that the E 831 05 fulfills all the requirements of electromagnetic compatibility after being installed in the case If a protective earth conductor is not or not properly connected dangerous touch voltages can occur and there is a risk of electric shock In the case of malfunction or failure of the system touching the E 831 05 can result in slight injuries gt Install the E 831 05 in a
8. mension mcn 10 Copyright 2012 by Physik Instrumente PI GmbH amp Co KG Release 1 0 0 File E 831 05 User PZ235E100 doc 182784 Bytes Release 1 0 0 info pi ws Page 3 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E 0 Introduction E 831 is a compact single channel amplifier for driving low voltage piezoelectric translators LVPZTs It is an OEM module for PCB printed circuit board mounting The E 831 05 amplifier is a highly compact but complete driver for LVPZTs having an average output power of about 2 W without heat sink Because the power consumption of a piezoelectric translator depends on the operating frequency and displacement amplitude static or quasi static operation can be controlled by such a low cost low power amplifier E 831s require two different voltages for operation All required voltages can be supplied by either the E 841 or E 842 power supply modules which run on single DC sources See the corresponding user manuals for more information Product Features Designed for PCB mounting Low cost Small footprint Low noise Easy to use Internal or external clocking Low profile High stability Fully stable for capacitive loads Fully overcurrent short circuit and temperature protected For small loads operates without heat sink VV VV VV ON ON ON ON ON Powers up and down without voltage spikes 1 Safety 1 1 Intended Use The E 831 05 is a laboratory device as defined by DIN EN 61010
9. ncy will appear in power supply and amplifier output but at switching frequencies of 100 kHz the piezo actuator is not able to follow so that the resulting motion has much less noise than the driving voltage This has to be considered if resolution is to be specified by measuring the piezo voltage Especially with digital oscilloscopes the measurement shows unrealistically high noise levels The only real way is to measure the resulting motion with optical methods or other high resolution high bandwidth sensors One possible problem with switched supplies is that the high frequencies can interact with other high frequencies in the system to generate lower frequency noise that the actuator can follow The solution is to synchronize the switching clock with the other system clocks for example sensor excitation signals and sampling clocks for AD and DA converters External synchronization lines are provided for this purpose The PCB layout should allow for voltage levels which can be as high as 180 V between neighboring pins and up to 140 V from ground This requires sufficient air gaps depending on the application environment Power Supplies The E 831 05 requires voltages in the range of 28 to 38 V and 127 to 137 V To prevent the customer from having to generate such untypical voltages PI offers suitable power supply modules While for low noise high resolution applications linear power supplies are easier to design most applications
10. require smaller packages and low power losses Piezo actuators for mechanical and electrical reasons are not able to generate mechanical noise at higher frequencies Therefore power with switching frequency noise of 100 kHz is still suitable for high resolution piezo positioning even though the electrical signal itself might not qualify as low noise Care should be taken if the system includes sensors with AC excitation or data sampling If the different clock signals or their harmonics have frequencies relatively close together their beat frequency can appear as noise Release 1 0 0 info pi ws Page 8 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E The solution PI provides is to make possible synchronization of the power supply with an external clock In complex systems or when the master clock is much higher and the various frequencies are made by dividers more sophisticated synchronization circuits are sometimes necessary This is because the phase shift of different dividers can affect precision and stability See the E 841 E 842 User Manual for detailed information on these modules 4 Technical Data E 831 05 Function Miniature piezo amplifier module 1 channel Amplifier Control input voltage 2to 12 V Output voltage 30 to 130 V Peak current 8 ms 250 mA Average current up to 1 minute without cooling 100 mA Current limitation Short circuit p
11. roof Voltage gain 1040 1 Amplifier bandwidth small signal 15 kHz open 3 dB 5 Vpp Ripple noise 0 to 100 kHz lt 0 15 MVims lt 1 mVpp Capacitive base load internal 10 nF Output impedance 50 Input impedance 1 MQ Miscellaneous Contacting Soldering pins 0 7 mm 9 mm Operating temperature range 5 to 50 C Overtemp protection Deactivation at a case temperature of 75 C Dimensions 60 x 28 x 6mm Material Metal shielded case Operating voltage 127 to 137 V 6 mA 28 to 38 V 6 mA Dynamic current consumption Depending on load amplitude and slew rate Depending on the power supply Full voltage swing with E 841 55 With E 841 05 and E 842 05 max 20 to 120 V for up to three amplifier modules Release 1 0 0 info pi ws Page 9 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E 5 Pin Assignment Pin 1 Supply Voltage 127 to 137 V Pin 2 GND Pin 3 Supply Voltage 28 to 38 V Pin 4 High Voltage Output 30 V to 130 V for LVPZT Pin 5 GND Pin 6 Control Input 2 to 12 V 1f2q3 41516 Connect at least one of the GND pins of the E o_o 5 5 831 05 to as protective earth conductor ooo ona DZD 22C 0 IOs 1 Install the E 831 05 in a metal case that is connected to a protective earth conductor 2 Connect at least one of the GND pins of the E 831 05 to the case in which the E 831 05 is installed so that it is conductive 6 Dimensions Dimensions in millimeters decimal places separated
12. tem Possible necessary measures are installation of the component in a suitable shielded enclosure and usage of suitable connectors March 12 2012 L Z Lov YO Karlsruhe Germany lt Dr Karl Spanner President Physik Instrumente Pl GmbH amp Co KG Auf der RoemerstraRe 1 76228 Karlsruhe Germany PISTO MANO PDSITIONINSG Phone 49 721 4846 0 Fax 49 721 4846 1019 E mail info pi ws www pi ws Piscine Salk QUSE HEY oe RN NI Release 1 0 0 info pi ws Page 2 E 831 05 Single Channel LVPZT Amplifier User Manual PZ235E Table of Contents 0 DENTFOGUCTION Bersm 4 1 crie I 4 1 1 Intended USO p 4 1 2 General Safety Instructions ccceeceeseceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee 5 1 2 1 Organizational Measures esses 5 1 2 2 Safety Measures during Installation eeseesssssss 5 1 2 3 Measures during Start Up and Operation 7 1 2 4 Safety Measures during Maintenance esseuess 7 2 Operating Principle eeeeeeeee eee 7 3 Amplifier Description eeeee esee een 8 3 1 Block Diagramaren nanamu ironman ape eu enr rainen HM 8 3 2 POWSN SUPDIIGS sius daciue dap tad at i aaa a cdd ica 8 4 Techhical Data eee ater eo uR EUN dk nae 9 5 Pin Assignment isicixeskes ose cc RV PUt enu nU v SXRE SUAE RE REM ERE 10 6 Di
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