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T-Cube Piezo Driver

Fig. D.3 Open loop and closed loop control

The result of using closed-loop control is a linear relationship between demand
(voltage) and measured position – see Fig. D.4, in contrast to open loop control – see
Fig. D.2.

Fig. D.4 Closed loop response

amp

actuator

demand

moving

part

open loop control

amp

actuator

sensor

a + b/s

demand

moving

part

closed loop control

real position

demand position

Summary of Contents for TPZ001

Page 1: ...TPZ001 Piezo Driver User Guide Original Instructions...

Page 2: ...mental Conditions 11 3 2 2 Mounting Options 11 3 2 3 Removing the Baseplate 12 3 3 Electrical Installation 13 3 3 1 Connecting a Piezo Actuator 13 3 3 2 Using The TCH002 Controller Hub 14 3 3 3 Supply...

Page 3: ...ation 29 5 6 2 Piezo Driver Hub Mounting Options 33 5 6 3 Electrical Connections and Software Settings Off Hub Operation 35 5 6 4 Entering the piezo percentage position 37 5 6 5 Setting the Position S...

Page 4: ...ct Note Clarification of an instruction or additional information Warnings If this equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impai...

Page 5: ...int of this unit has been kept to a minimum measuring only 60mm x 60mm x 47mm 2 4 x 2 4 x 1 8 and with the facility to directly mount to the optical table close to the device under control Table top o...

Page 6: ...lab and Delphi See Section 2 3 for a full description of the Kinesis system software In the remainder of this handbook the Tutorial section Chapter 5 provides a good initial understanding on using the...

Page 7: ...rapidly and with great ease The server is described in more detail in the following section 2 3 2 Kinesis Server With the Kinesis system Net Controls are deployed to allow direct control over and als...

Page 8: ...and programmable interfaces allowing users and client application developers to interact seamlessly with the Kinesis hardware Each of the Kinesis controllers has an associated Net Control and these a...

Page 9: ...graphical user interface panels GUIs which expose all key operating parameters and modes The user can select multiple panel views displaying different information about a particular hardware unit The...

Page 10: ...d optical table or similar surface If desired the baseplate can be removed and the unit can be stood on rubber feet see Section 3 2 3 For multiple cube systems a USB controller hub TCH002 is available...

Page 11: ...the baseplate Retain the bolts for future use if the baseplate is refitted 3 Turn the unit upside down 4 Remove the backing paper from the rubber feet supplied taking care not to touch the exposed ad...

Page 12: ...can be used as a position feedback input designed to be driven by an external position reader such as the TSG001 Strain Gauge Reader These operating modes are detailed in Section 5 3 to Section 5 6 MO...

Page 13: ...ering Down The Unit Note Thorlabs supply a variety of SMA to BNC and SMC to BNC adaptor and extension cables Please see our catalog or visit www Thorlabs com for further details Supply Minimum Maximum...

Page 14: ...only to a DC supply as detailed in Section 3 3 Connection to a supply of a different rating may cause damage to the unit and could result in injury to the operator Caution Do not connect the piezo un...

Page 15: ...uld detect the new hardware Wait while WindowsTM installs the drivers for the new hardware 7 For maximum accuracy wait approximately 30 mins for the unit to thermally stabalize to the environment 8 Ru...

Page 16: ...Cube Piezo Driver is used in conjunction with the T Cube Strain Gauge Reader unit TSG001 high precision closed loop operation is possible using the complete range of feedback equipped piezo actuators...

Page 17: ...TPUT potentiometer is an infinite turn encoder used to adjust the piezo drive voltage To increase the drive voltage turn the potentiometer clockwise once the maximum voltage set via software see Secti...

Page 18: ...he user to limit the output voltage range to 75V 100V or 150V select between open and closed loop operation and adjust the display brightness In applications where the Piezo cube is being used in Clos...

Page 19: ...ltage range Press the MODE button to select the maximum output voltage associated with your piezo actuator 75V 100V or 150V Press and hold the MODE button to save the setting Note This setting is non...

Page 20: ...150V whichever is set in software see Section 6 2 The 100V limit is only a software setting and in this case the output will still ramp to 150V Press the MODE button to proceed to the External Input...

Page 21: ...tween units Fig 4 2 Controller Hub Feedback Channels If Channel 1 is selected the feedback signal runs through all the bays see Fig 4 2 This setting is useful in applications where a master cube is co...

Page 22: ...Z001 is optional Closed loop operation is only possible if there is an external feedback signal connected to the unit so the selected external input is always assumed to have a signal source driving i...

Page 23: ...trument panels to be displayed so that multiple units can be controlled All basic operating parameters can be set through this program and all basic operations such as piezo moves can be initiated Thi...

Page 24: ...d repeatability of the system This problem can however be eliminated when closed loop control is used Closed loop mode assumes that the piezo actuator is fitted with a position sensor usually a strain...

Page 25: ...the rear panel EXT IN terminal used for feedback Fig 5 3 Closed Loop Schematic Diagram In closed loop the role of the external inputs changes and the selected input receives the position signal from t...

Page 26: ...display counts up to the value entered 5 4 2 Jogging the Piezos When the jog buttons are pressed the piezo moves by the voltage step specified in the Jog Step Size parameter 1 Click the Step Button t...

Page 27: ...panel then select the Advanced tab Fig 5 6 Piezo settings panel 3 In the Input Source field select Software External signal 4 In the Analogue Input Mode field select External SMA signal 5 Click OK to...

Page 28: ...n this case individual power supply and USB connections are required for each controller in addition to the external signal cables between the controllers Using the TCH002 hub greatly simplifies the s...

Page 29: ...rain gauge unit to the Feedback connector on the piezo actuator 5 Connect the controller hub to the power supply see Section 3 3 2 6 Connect the PSU to the main supply and switch ON The version number...

Page 30: ...en 75V 100V or 150V Advanced Tab Input Source Select Software Potentiometer Analogue Input Mode Select Analogue Channel 1 12 If desired click the Persist Settings To Hardware box These settings will t...

Page 31: ...r to Channel 1 16 If desired click the Persist Settings To Hardware box These settings will then be loaded on each power up cycle 17 Click OK to save the settings 18 Refer to Section 5 6 5 for instruc...

Page 32: ...and 6 see Fig 5 10 Fig 5 10 Hub Analog Input Channels Only certain T Cube arrangements allow the system to function correctly Furthermore the setting for the Analogue Input Source EXT IN parameter in...

Page 33: ...E MODE POWER POWE R VOLTS JOG CONTR OL POSITION VOLTAGE FORCE MODE POWER POSITION VOLTAGE FORCE MODE POWER POWE R VOLTS JOG CONTR OL POSITION VOLTAGE FORCE MODE POWER bay 1 bay 2 bay 3 bay 4 bay 2 bay...

Page 34: ...erminal on the rear panel of the strain gauge unit to the Feedback connector on the piezo actuator 4 Connect the HV OUT terminal on the rear of the Piezo driver to the associated piezo actuator 5 Conn...

Page 35: ...Select Closed Loop Maximum Voltage Set the corresponding voltage for the piezo being driven 75V 100V or 150V Advanced Tab Input Source Select Software Potentiometer Analogue Input Mode Select Externa...

Page 36: ...specific applied voltage and the position attained by a corresponding specified distance can be rationalized Each actuator has a unique offset value Therefore the offset should be adjusted whenever an...

Page 37: ...display on the Strain Gauge Reader T Cube shows a proportional increase in position in microns 4 Rotate the Output control anticlockwise Notice how the voltage display decrements to show the decreasi...

Page 38: ...0 Changing and Saving Parameter Settings During operation certain settings e g loop mode maximum voltage etc can be changed as required and saved to the device for use in the absence of a PC However w...

Page 39: ...l Set Arrow Opens the settings window so that the target drive voltage or position can be entered see Section 5 4 1 Zero Sets the piezo drive voltage to zero Step Arrows used to increment or decrement...

Page 40: ...red for the motor drive see Section 6 2 Active lit when the unit is operating normally and no error condition exists Error lit when a fault condition occurs Open Loop and Closed Loop LEDs When Open Lo...

Page 41: ...the unit is next powered up these settings are applied automatically This is particularly important when the driver is being used manually in the absence of a PC and USB link The Analogue Input Chann...

Page 42: ...ezo Driver is used in conjunction with the T Cube Strain Gauge Reader unit TSG001 on the T Cube Controller Hub TCH002 high precision closed loop operation is possible using the complete range of feedb...

Page 43: ...ck loop constant for the selected channel 0 to 255 Control Settings Voltage Step Size Only applicable in open loop mode This parameter specifies the amount by which the piezo drive voltage is incremen...

Page 44: ...control for example by turning the Output control knob it is not possible to exceed this limit but using the external inputs SMA Hub channel 1 or Hub channel 2 the limit can be exceeded Therefore exer...

Page 45: ...ince whenever the GUI panel is displayed the software is controlling the piezo cube whilst the contribution of the front panel pot and the external input can be individually enabled or disabled as fol...

Page 46: ...ltOutput method or the GUI panel Output control If Pot_EXT_IN is selected the unit sums the voltage set using front panel OUTPUT control with the voltage set using the SetVoltOutput method or the GUI...

Page 47: ...arily can result in the sensitive electronic inside the cube getting damaged invalidating warranty The cube uses a standard mini DIN type of input connector the corresponding plug is available from mo...

Page 48: ...e covers removed Only personnel authorized by Thorlabs Ltd and trained in the maintenance of this equipment should remove its covers or attempt any repairs or adjustments Maintenance is limited to saf...

Page 49: ...cal Piezo Capacitance 1 F to 10 F Drive Bandwidth 1kHz 1 F Load 1V p p Drive Input 0 10V SMA Connector Output Monitor 0 10V SMA Connector Voltage Readout 5 Digit 7 Segment LED Display USB Port Version...

Page 50: ...rive Cable for Piezoelectric Actuators 1 5 m PAA101 Drive Cable Extension for Piezo Actuators 1 5 m PAA101A T Cube Strain Gauge Reader TSG001 2 Way Power Supply Unit TPS002 T Cube Controller Hub TCH00...

Page 51: ...hundreds of newtons Perhaps the most useful property of these actuators is their ability to produce oscillating motion at considerable frequencies usually limited by the mechanical system driven rathe...

Page 52: ...the circuit subtracts the measured position from the demand position to get the error and a proportional integral feedback loop adjusts the voltage to the actuator until the error is virtually zero S...

Page 53: ...is a linear relationship between demand voltage and measured position see Fig D 4 in contrast to open loop control see Fig D 2 Fig D 4 Closed loop response amp actuator demand moving part open loop c...

Page 54: ...ential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Changes or modifications not expressly approved by the compan...

Page 55: ...ontact Thorlabs or your nearest dealer for further information E 2 2 Waste treatment on your own responsibility If you do not return an end of life unit to the company you must hand it to a company sp...

Page 56: ...Appendix E 56 HA0143T Rev 12K Sept 2015 E 3 CE Certificate...

Page 57: ...57 T Cube Piezo Driver...

Page 58: ...58...

Page 59: ...c sales thorlabs com techsupport thorlabs com Europe Thorlabs GmbH europe thorlabs com France Thorlabs SAS sales fr thorlabs com Japan Thorlabs Japan Inc sales thorlabs jp UK and Ireland Thorlabs Ltd...

Page 60: ...60 www thorlabs com...

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