Physik Instrumente P721T0007 P 721 PIFOC Z Drives
P721T0007_P-721_PIFOC_Z_Drives PD72Z1x PIFOC® Objective Scanning System 100 µm
User Manual: Physik Instrumente P-721 PIFOC® Piezo Flexure Objective Scanner
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Page Count: 22
- About this Document
- Safety
- Product Description
- Installation
- Start-Up and Operation
- Discharging the P-721
- Maintenance
- Customer Service
- Technical Data
- Dimensions
- Pin Assignments
- Maximum Ratings
- Ambient Conditions and Classifications
- Old Equipment Disposal
Page 2 / 22
2017-03-29
P721T0007, valid for P-721
Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Contents
About this Document ......................................................................................................... 3
Symbols and Typographic Conventions ........................................................................................ 3
Figures.......................................................................................................................................... 3
Safety ................................................................................................................................... 3
Intended Use ................................................................................................................................ 3
Safety Precautions ........................................................................................................................ 4
Product Description ........................................................................................................... 5
Model Overview ............................................................................................................................ 5
Product View................................................................................................................................. 6
Product Labeling ........................................................................................................................... 6
Scope of Delivery .......................................................................................................................... 7
Accessories .................................................................................................................................. 7
Suitable Electronics ...................................................................................................................... 8
Installation........................................................................................................................... 9
Connecting the P-721 to a Protective Earth Conductor ................................................................. 9
Affixing the P-721 to the Microscope ........................................................................................... 10
Installing the Objective ................................................................................................................ 10
Start-Up and Operation .................................................................................................... 11
General Notes on Start-Up and Operation .................................................................................. 11
Starting Up and Operating the P-721 .......................................................................................... 12
Discharging the P-721 ...................................................................................................... 12
Maintenance ...................................................................................................................... 13
Cleaning the P-721 ..................................................................................................................... 13
Customer Service ............................................................................................................. 14
Technical Data .................................................................................................................. 14
P-721 Fast PIFOC® Nanofocusing Z Drive ................................................................................. 14
Dimensions ....................................................................................................................... 16
P-721.xxQ, P-721.SL2 ................................................................................................................ 16
P-721.xDA .................................................................................................................................. 17
Pin Assignments .............................................................................................................. 18
P-721.CLQ, P-721.0LQ ............................................................................................................... 18
P-721.SL2 ................................................................................................................................... 19
P-721.CDx .................................................................................................................................. 20
P-721.SDA .................................................................................................................................. 20
Maximum Ratings ............................................................................................................. 21
Ambient Conditions and Classifications ........................................................................ 21
Old Equipment Disposal .................................................................................................. 22
Page 3 / 22
2017-03-29
P721T0007, valid for P-721
Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
About this Document
Symbols and Typographic Conventions
The following symbols and typographic conventions are used in this user manual:
CAUTION
Dangerous situation
If not avoided, the dangerous situation will result in minor injury.
Actions to take to avoid the situation.
NOTICE
Dangerous situation
If not avoided, the dangerous situation will result in damage to the equipment.
Actions to take to avoid the situation.
INFORMATION
Information for easier handling, tricks, tips, etc.
Figures
For better understandability, the colors, proportions, and degree of detail in illustrations can deviate
from the actual circumstances. Photographic illustrations may also differ and must not be seen as
guaranteed properties.
Safety
Intended Use
The P-721 Z drive is a laboratory device as defined by DIN EN 61010-1. It is intended to be used in
interior spaces and in an environment which is free of dirt, oil and lubricants.
Based on its design and realization, the P-721 is intended for positioning and shifting microscope
objectives in one axis.
The P-721 can be mounted horizontally or vertically. The specifications refer to a vertically mounted
P-721.
The intended use of the P-721 is only possible in a completely assembled and connected state. The
P-721 must be operated with a suitable controller that is available from PI. The controller is not
included in the scope of delivery of the P-721.
Page 4 / 22
2017-03-29
P721T0007, valid for P-721
Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Safety Precautions
CAUTION
Dangerous voltage and residual charge on piezo actuators!
The P-721 is driven by piezo actuators. Temperature changes and compressive
stresses can induce charges in piezo actuators. After being disconnected from the
electronics, piezo actuators can also stay charged for several hours. Touching or
short-circuiting the contacts in the connector of the P-721 can lead to minor injuries.
In addition, the piezo actuators can be destroyed by an abrupt contraction.
Do not open the P-721.
Discharge the piezo actuators before installation:
Connect the Z drive to the switched-off PI controller for 10 seconds.
Do not pull out the connector from the electronics during operation.
For P-721 with sub-D connector:
Touching the contacts in the connector can lead to an electric shock (max.
120 V DC) and minor injuries.
Do not touch the contacts in the connector.
Secure the connector of the piezo actuator with screws against being pulled out
of the controller.
CAUTION
Risk of electric shock if the protective earth conductor is not connected!
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 P-721 can result in minor injuries.
Connect the P-721 to a protective earth conductor before start-up.
Do not remove the protective earth conductor during operation.
Use electrically conductive materials (e.g., screws and flat washers) for mounting
the protective earth conductor.
Make sure that the contact resistance is <0.1 Ω at 25 A at all connection points
relevant for mounting the protective earth conductor.
If the protective earth conductor has to be temporarily removed (e.g., for
modifications), reconnect the P-721 to the protective earth conductor before
starting it up again.
NOTICE
Unsuitable cables!
Unsuitable cables can damage the electronics.
Only use cables from PI for connecting the P-721 to the electronics.
Page 5 / 22
2017-03-29
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
INFORMATION
Extended cables can affect the performance of the P-721.
Do not use cable extensions. If you need longer cables, contact our customer
service department (p. 14).
Product Description
Model Overview
The models of the P-721 differ in terms of:
Sensor
Connector
Thread adapter
Product number Description
P-721.CLQ Fast PIFOC® nanofocusing Z drive, 100 µm, direct metrology, capacitive sensor,
LEMO connector(s), for QuickLock thread adapters
P-721.CDQ Fast PIFOC® nanofocusing Z drive, 100 µm, direct metrology, capacitive sensor,
Sub-D connector, for QuickLock thread adapters
P-721.CDA Fast PIFOC® nanofocusing Z drive, 100 µm, direct metrology, capacitive sensor,
Sub-D connector, for large aperture QuickLock thread adapters
P-721.SL2 Fast PIFOC® nanofocusing Z drive, 100 µm, SGS sensor, LEMO connector(s),
for QuickLock thread adapters
P-721.SDA Fast PIFOC® nanofocusing Z drive, 100 µm, SGS sensor, Sub-D connector, for
large aperture QuickLock thread adapters
P-721.0LQ Fast PIFOC® nanofocusing Z drive, 100 µm, open-loop, LEMO connector(s), for
QuickLock thread adapters
Page 6 / 22
2017-03-29
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Product View
Figure 1: Components of the Z drive, example of a P-721.SDA, here without labeling
1 Cable exit
2 Threaded aperture
3 Base body
4 Protective earth connection
Product Labeling
Labeling Description
P-721.SDA Product number (example), the digits after the period refer to the model
117013291 Serial number (example), individual for each P-721
Meaning of the places (counting from left):
1 = internal information
2 and 3 = manufacturing year
4 to 9 = consecutive numbers
PIFOC® Brand name
Country of origin:
Germany
Country of origin
Warning sign "Observe manual!"
Old equipment disposal (p. 22)
WWW.PI.WS Manufacturer's address (website)
CE conformity mark
Manufacturer's logo
Symbol for the protective earth conductor (p. 9), marks the protective earth
connection of the P-721
Page 7 / 22
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Scope of Delivery
Product number Description
P-721 Fast PIFOC® nanofocusing Z drive according to order (p. 5)
000036450 M4 screw set for protective earth, consisting of:
1 M4x8 flat-head screw with cross recess, ISO 7045
2 safety washers
2 flat washers
PZ240EK Short instructions for piezo positioning systems
P721T0002 Technical note for QuickLock thread option
Accessories
Extension tubes
Product number Description
P-721.90Q Extension tube, 12.5 mm, thread W0.8 x 1/36’’
P-721.91Q Extension tube, 12.5 mm, thread M25 x 1/36’’
P-721.92Q Extension tube, 12.5 mm, thread M26 x 1/36’’
P-721.93Q Extension tube, 12.5 mm, thread M27 x 1/36’’
P-721.94Q Extension tube, 12.5 mm, thread M28 x 1/36’’
P-721.95Q Extension tube, 12.5 mm, thread M32 x 1/36’’
P-721.96Q Extension tube, 12.5 mm, thread M26 x 1/36’’
P-721.98Q Extension tube, 12.5 mm, thread M19 x 1/36’’
QuickLock thread adapters
Product number Description
Only for P-721.xxQ / .SL2
P-721.02Q QuickLock thread adapter, M26 x 0.75 mm, Ø 21 mm
P-721.03Q QuickLock thread adapter, M27 x 0.75 mm, Ø 21 mm
P-721.04Q QuickLock thread adapter, M28 x 0.75 mm, Ø 21 mm
P-721.05Q QuickLock thread adapter, M32 x 0.75 mm, Ø 21 mm
P-721.06Q QuickLock thread adapter, M26 x 1/36’’, Ø 21 mm
P-721.08Q QuickLock thread adapter, M19 x 0.75 mm, Ø 14 mm
P-721.11Q QuickLock thread adapter, M25 x 0.75 mm, Ø 21 mm
P-721.12Q QuickLock thread adapter, W0.8 x 1/36’’, Ø 14 mm
Page 8 / 22
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Product number Description
Only for P-721.xxA
P-721.02A QuickLock thread adapter for large apertures, M26 x 0.75 mm, Ø 23 mm
P-721.03A QuickLock thread adapter for large apertures, M27 x 0.75 mm, Ø 24 mm
P-721.04A QuickLock thread adapter for large apertures, M28 x 0.75 mm, Ø 25 mm
P-721.05A QuickLock thread adapter for large apertures, M32 x 0.75 mm, Ø 29 mm
P-721.06A QuickLock thread adapter for large apertures, M26 x 1/36’’, Ø 23 mm
P-721.11A QuickLock thread adapter for large apertures, M25 x 0.75 mm, Ø 22 mm
Adapter cables
Product number Description
P-895.1DLC Adapter cable Sub-D 7W2 (f) to LEMO for piezo actuator nanopositioning
systems with capacitive sensors, 1 channel, 0.3 m. Fits controllers with LEMO
connectors (1× voltage, 2× sensor).
P-895.1LDC Adapter cable LEMO to sub-D 7W2 (m) for piezo actuator nanopositioning
systems with capacitive sensors, 1 channel, 0.3 m. Fits motion controllers with
Sub-D 7W2 (f) socket.
Suitable Electronics
Model / Mechanics Model / Electronics
Capacitive sensor,
Sub-D connection:
P-721.CDQ
P-721.CDA
E-621 controller module
E-625 servo controller, bench-top
E-665 display servo controller, with digital interface, bench-top
E-754 single-channel digital controller
E-709 single-channel digital controller
Capacitive sensor,
LEMO connection:
P-721.CLQ
E-610 servo controller / amplifier
E-500 modular piezo controller system with E-505 high-performance
amplifier module and E-509 controller
SGS sensor,
Sub-D connection:
E-721.SDA
E-709 single-channel digital controller
SGS sensor,
LEMO connection:
E-721.SL2
E-610 servo controller / amplifier
E-625 servo controller, bench-top
E-665 display servo controller, with digital interface, bench-top
No sensor,
LEMO connection:
P-721.0LQ
E-500 modular piezo controller system with E-505 high-performance
amplifier module
E-610.00 amplifier
Page 9 / 22
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Installation
Connecting the P-721 to a Protective Earth Conductor
INFORMATION
Observe the applicable standards for mounting the protective earth conductor.
The P-721 is equipped with an M4 hole for fastening the protective earth conductor. This hole is
marked with the protective earth conductor symbol (see " Dimensions", p.16).
Requirements
You have read and understood the safety precautions (p. 4).
The P-721 is not connected to the electronics.
Tools and accessories
Suitable protective earth conductor: Cross-sectional area of the cable ≥0.75 mm2
Supplied M4 protective earth screw set (p. 7) for connecting the protective earth conductor
Suitable screwdriver
Figure 2: Mounting of the protective earth conductor (profile view)
1 Base body of the P-721
2 Flat washer
3 Safety washer
4 Screw
5 Cable lug
6 Protective earth conductor
Connecting the P-721 to the protective earth conductor
1. If necessary, fasten a suitable cable lug to the protective earth conductor.
2. Use the M4 screw (together with the washers and self-locking washers) to affix the cable lug
of the protective earth conductor to the protective earth connection of the P-721 as shown in
the profile view.
3. Tighten the M4 screw with a torque of 1.2 Nm to 1.5 Nm.
4. Make sure that the contact resistance at all connection points relevant for mounting the
protective earth conductor is <0.1 Ω at 25 A.
Page 10 / 22
2017-03-29
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Affixing the P-721 to the Microscope
Requirements
You have read and understood the safety precautions (p. 4).
Tools and accessories
P721T0002 technical note for PIFOC® QuickLock thread option (p. 7)
QuickLock thread adapter (p. 7) (not included)
Affixing the P-721 to the Microscope
Install the P-721 as described in the P721T0002 technical note for PIFOC® QuickLock thread
option (p. 7).
Installing the Objective
Correct:
Figure 3: Center of load close to aperture
Incorrect:
Mounting the load incorrectly causes high strain on the flexure guides in the Z drive, high torques and
the danger of oscillations.
Figure 4: Center of load far below the aperture
Page 11 / 22
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Requirements
You have read and understood the safety precautions (p. 4).
You have affixed the P-721 to the microscope (p. 10).
Tools and accessories
P721T0002 technical note for PIFOC® QuickLock thread option (p. 7)
QuickLock thread adapter (p. 7) (not included)
Objective to be installed (not included)
Suitable tools
Installing the objective
Screw the objective into the P-721. See the P721T0002 technical note (p. 7) for details.
Start-Up and Operation
General Notes on Start-Up and Operation
NOTICE
Destruction of the piezo actuator by electric flashovers!
The use of the P-721 in environments that increase the electrical conductivity can
lead to the destruction of the piezo actuator by electric flashovers. Electric flashovers
can be caused by moisture, high humidity, liquids and conductive materials such as
metal dust. In addition, electric flashovers can also occur in certain air pressure
ranges due to the increased conductivity of the air.
Avoid operating the P-721 in environments that can increase the electric
conductivity.
Only operate the P-721 within the permissible ambient conditions and
classifications (p. 21).
NOTICE
Destruction of the piezo actuator by continuously high voltage!
The constant application of high voltage to piezo actuators can lead to leakage
currents and flashovers that destroy the ceramic.
If the P-721 is not used, but the controller is to remain switched on to ensure
temperature stability:
Set the piezo voltage to 0 V on the controller.
Page 12 / 22
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
NOTICE
Uncontrolled oscillation!
Oscillations can cause irreparable damage to the P-721. Oscillations are indicated by
a humming and can result from the following causes:
The load and/or dynamics of operation differ too much from the calibration
settings.
The P-721 is operated near its resonant frequency.
If you notice oscillations, stop the P-721 immediately.
INFORMATION
Systems are calibrated at the factory to achieve optimum performance. Replacing
the system components will cause a loss in performance when Z drives without
ID chip are used, or whose ID chip does not contain any calibration data, or when
Z drives with LEMO connectors or analog controllers are used.
Only P-721.CDQ and P-721.CDA Z drives are equipped with an ID chip.
Note the assignment of the Z drive axis to the controller channel, which is given
by the calibration label of the piezo servo controller.
For systems without ID chip:
If the piezo servo controller or the Z drive has to be replaced, recalibrate the axis
displacement (see controller manual) or contact our customer service
department (p. 14).
Starting Up and Operating the P-721
Requirements
You have read and understood the safety precautions (p. 4).
You have read and understood the general notes on start-up and operation (p. 11).
Starting up and operating the P-721
Follow the instructions in the manual of the piezo controller used for start-up and operation of
the P-721.
Discharging the P-721
The P-721 must be discharged before demounting. Demounting is necessary e.g., before cleaning or
transporting the P-721 as well as for modifications.
Page 13 / 22
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Discharging a P-721 that is connected to the controller
In closed-loop operation:
1. Switch off the servo mode on the controller.
2. Set the piezo voltage to 0 V on the controller.
In open-loop operation:
Set the piezo voltage to 0 V on the controller.
Discharging a P-721 that is not connected to the controller
Connect the P-721 to the switched-off PI controller for 10 seconds.
Maintenance
NOTICE
Misalignment from loosening screws on the base body!
The P-721 is maintenance-free and precisely aligned.
Only loosen screws according to the instructions in this manual.
Do not open the P-721.
Cleaning the P-721
Requirements
You have discharged the piezo actuators of the P-721.
You have disconnected the P-721 from the controller.
Cleaning the P-721
Clean the surface of the P-721 with a cloth that is lightly dampened with a mild cleanser or
disinfectant (e.g., ethanol or isopropyl alcohol).
Do not do any ultrasonic cleaning.
Page 14 / 22
2017-03-29
P721T0007, valid for P-721
Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Customer Service
For inquiries and orders, contact your PI sales engineer or send us an email (info@pi.ws).
If you have questions concerning your system, have the following information ready:
− Product and serial numbers of all products in the system
− Firmware version of the controller (if present)
− Version of the driver or the software (if present)
− Operating system on the PC (if present)
If possible: Take photographs or make videos of your system that can be sent to our customer
service department if requested.
The latest versions of the user manuals are available for download on our website (www.pi.ws).
Technical Data
P-721 Fast PIFOC® Nanofocusing Z Drive
Model P-721.CLQ P-721.CDQ
P-721.CDA
P-721.SL2
P-721.SDA
P-721.0LQ
open-loop
version
Units Tolerance
Active axes Z Z Z Z
Motion and
positioning
Integrated sensor Capacitive Capacitive SGS -
Open-loop travel,
-20 to +120V 140 140 140 140 µm min. (+20 %/
-0 %)
Closed-loop travel 100 100 100 - µm calibrated
Open-loop resolution 0.5 0.5 0.5 0.5 nm typ.
Closed-loop
resolution 0.7 0.7 5 - nm typ.
Linearity, closed-
loop 0.03 0.03 0.2 - % typ.
Repeatability ±5 ±5 ±10 - nm typ.
Runout θX, θY 13 13 13 13 µrad typ.
Crosstalk in X, Y 100 100 100 100 nm typ.
Mechanical
properties
Stiffness in motion
direction 0.3 0.3 0.3 0.3 N/µm ± 20 %
Page 15 / 22
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Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Model P-721.CLQ P-721.CDQ
P-721.CDA
P-721.SL2
P-721.SDA
P-721.0LQ
open-loop
version
Units Tolerance
Unloaded resonant
frequency 580 580 580 580 Hz ± 20 %
Resonant frequency
@ 120 g 235 235 235 235 Hz ± 20 %
Resonant frequency
@ 200 g 180 180 180 180 Hz ± 20 %
Push/pull force
capacity in motion
direction
100 / 20 100 / 20 100 / 20 100 / 20 N max.
Drive properties
Ceramic type PICMA®
P-885
PICMA®
P-885
PICMA®
P-885
PICMA®
P-885
Electrical
capacitance 3.1 3.1 3.1 3.1 µF ± 20 %
Dynamic operating
current coefficient 3.9 3.9 3.9 3.9 µA/(Hz x µm) ± 20 %
Miscellaneous
Operating
temperature range* -20 to 80 -20 to 80 -20 to 80 -20 to 80 °C
Material Aluminum Aluminum Aluminum Aluminum
Max. objective
diameter 39 39 39 39 mm
Mass 0.24 0.24 0.22 0.22 kg ± 5 %
Maximum objective
diameter 39 39 39 39 mm
Cable length 1 1 1 1 m ±10 mm
Sensor- / voltage
connection LEMO Sub-D
special
LEMO /
Sub-D
special
LEMO (no
sensor)
*Specifications assured from 17°C to 23°C. The Z drive has to be recalibrated for temperatures outside this
range.
Page 16 / 22
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Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Dimensions
Dimensions in mm. Note that the decimal places are separated by a comma in the drawings.
P-721.xxQ, P-721.SL2
Figure 5: P-721.xxQ, P-721.SL2 (P-721.xxQ adapter to be ordered separately)
Page 18 / 22
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P721T0007, valid for P-721
Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Pin Assignments
P-721.CLQ, P-721.0LQ
Figure 7: LEMO connectors of P-721.CLQ (top) and P-721.0LQ (bottom)
1 LEMO coaxial connector for capacitive sensor (Probe)
2 LEMO coaxial connector for capacitive sensor (Target)
3 LEMO coaxial connector for piezo voltage
LEMO coaxial connectors
Figure 8: LEMO coaxial connectors
Connector
Signal Function Connector shell
P Probe Probe sensor signal (moving part
of the capacitive sensor)
Cable shield
T Target Target sensor signal (non-moving
part of the capacitive sensor)
Cable shield
PZT PZT Piezo voltage Ground of piezo
voltage on cable
shield
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P-721.SL2
Figure 9: LEMO connectors of P-721.SL2
1 4-pin LEMO connector for strain gauge sensor
2 LEMO coaxial connector for piezo voltage
LEMO connector for strain gauge sensor (front view):
Pin Function
1 Vref
2 Sensor 1 (-)
3 Sensor 2 (+)
4 GND
LEMO coaxial connector for piezo voltage:
See LEMO connector PZT as used in “LEMO coaxial connectors” on p. 18.
Page 20 / 22
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Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
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P-721.CDx
Figure 10: Sub-D 7W2 (m) connector, front view
Pin Signal Function
A1 inner conductor Input Piezo voltage +
A2 inner conductor Output Probe sensor signal
(nonmoving part of the capacitive
sensor)
A2 outer conductor GND Shield
1 Bidirectional Data line for ID chip
2 GND Shield of Target
Ground of ID chip when switched on
3 Input Piezo voltage –
4 N.C. Not connected
5 Input Target sensor signal
(movable part of the capacitive sensor)
The connector shell is connected to the cable shield.
P-721.SDA
Connector type: Sub-D 9 male, front view
Pin Function
1 PZT +
2 Not connected
3 Not connected
4 SGS +
5 SGS GND
6 PZT GND
7 Not connected
8 SGS Ref.
9 SGS -
The connector shell is connected to the cable shield.
Page 21 / 22
2017-03-29
P721T0007, valid for P-721
Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Maximum Ratings
The P-721 is designed for the following maximum ratings:
Maximum operating
voltage
Maximum operating
frequency
(unloaded)
Maximum power
consumption
-20 to 120 V
193 Hz
8.6 W
Ambient Conditions and Classifications
The following ambient conditions and classifications must be observed for the P-721:
Area of application For indoor use only
Maximum altitude 2000 m
Air pressure 1100 hPa to 1013 hPa
Relative humidity Highest relative humidity 80 % for temperatures up
to 31 °C
Decreasing linearly to 50 % relative humidity at
40 °C
Storage temperature -20°C to 80°C
Transport temperature -25°C to 85°C
Overvoltage category II
Protection class I
Degree of pollution 1
Degree of protection
according to IEC 60529
IP20
Page 22 / 22
2017-03-29
P721T0007, valid for P-721
Physik Instrumente (PI ) GmbH & Co. KG, Auf der Roemerstr. 1, 76228 Karlsruhe/Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Old Equipment Disposal
In accordance with EU law, electrical and electronic equipment may not be disposed of in EU member
states via the municipal residual waste.
Dispose of your old equipment according to international, national, and local rules and regulations.
In order to fulfil its responsibility as the product manufacturer, Physik Instrumente (PI) GmbH & Co.
KG undertakes environmentally correct disposal of all old PI equipment made available on the market
after 13 August 2005 without charge.
Any old PI equipment can be sent free of charge to the following address:
Physik Instrumente (PI) GmbH & Co. KG
Auf der Roemerstr. 1
D-76228 Karlsruhe, Germany
