MICRO-EPSILON capaNCDT 6630 User manual

MI CRO- EPSI LON
SENSORS & SYSTEMS
capaNCDT 6630
Betriebsanleitung
Instruction manual

MICRO-EPSILON
MESSTECHNIK
GmbH & Co. KG
Königbacher Strasse 15
D-94496 Ortenburg
Tel. [phone]
Fax [phone]
e-mail [email protected]
www.micro-epsilon.de
DIN EN ISO 9001: 2000
Zertificated acc. to
Zertifiziert nach
Berührungsloses kapazitives Wegmesssystem
Non-Contact Capacitive Displacement Measurement

X9751122-A010014MSC
English
MICRO-EPSILON
Contents
1. Safety ........................................................................................................... 23
1.1 Symbols Used.................................................................................................................23
1.2 Warnings ......................................................................................................................... 23
1.3 Notes on CE-Identification .............................................................................................. 24
1.4 Proper Use ...................................................................................................................... 25
1.5 Proper Environment ........................................................................................................ 25
2. Functional Principle, Technical Data.......................................................... 26
2.1 Measuring Principle ......................................................................................................... 26
2.2 Structure.......................................................................................................................... 27
2.2.1 Controller ........................................................................................................................ 27
2.2.2 Sensors ........................................................................................................................... 28
2.3 Technical Data ................................................................................................................. 28
3. Delivery ....................................................................................................... 30
3.1 Unpacking....................................................................................................................... 30
3.2 Storage ........................................................................................................................... 30
4. Installation and Assembly .......................................................................... 31
4.1 Precautionary Measures .................................................................................................. 31
4.2 Sensor ............................................................................................................................. 31
4.3 Electronics, Ground Connection, Earthing ..................................................................... 33
4.4 Signal Output .................................................................................................................. 33

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MICRO-EPSILON
5. Operation..................................................................................................... 33
5.1 Starting Up ...................................................................................................................... 33
5.2 Zero Point and Gain........................................................................................................ 33
6. Operation and Maintenance ....................................................................... 34
7. Warranty ...................................................................................................... 35
8. Appendix...................................................................................................... 36
8.1 Accessories and Spare Parts .......................................................................................... 36
8.2 Sensor Dimensions ......................................................................................................... 36
8.3 PIN-Assignment ............................................................................................................... 37

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MICRO-EPSILON
Safety
1. Safety
1.1 Symbols Used
Knowledge of the operating instructions is a prerequisite for equipment operation. The following symbols are
used in this instruction manual:
DANGER! - imminent danger
WARNING! - potentially dangerous situation
i
IMPORTANT! - useful tips and information
1.2 Warnings
 Disconnect the power supply before touching the sensor surface
ðStatic discharge - danger of injury
ðDanger of injury
 The power supply and the display/output device must be connected in accordance with the safety
regulations for electrical equipment
ðDanger of injury
ðDamage to or destruction of the sensor and/or controller
 Avoid banging and knocking the sensor and controller
ðDamage to or destruction of the sensor and/or controller

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Safety
 The power supply may not exceed the specified limits
ðDamage to or destruction of the sensor and/or controller
ðDanger of injury
 Protect the sensor cable against damage
ðDestruction of the sensor
ðFailure of the measuring device
1.3 Notes on CE-Identification
The following applies to the capaNCDT series 6630: EC regulation 89/336/EEC
Products which carry the CE mark satisfy the requirements of the EC regulation EC 89/336/EEC
Electromagnetic Compatibility and the European standards (EN) listed therein. The EC declaration of
conformity is kept available according to EC regulation, article 10 by the authorities responsible at
MICRO-EPSILON MESSTECHNIK
GmbH & Co. KG
Koenigbacher Straße 15
D-94496 Ortenburg
Germany
The system is designed for use in industry and satisfy the requirements of the standards
 EN 50 081-1 RFI emission
 EN 61 000-6-2 Immunity to interference
The systems satisfy the requirements if they comply with the regulations described in the instruction manual
for installation and operation.

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MICRO-EPSILON
Functional Principle, Technical Data
1.4 Proper Use
The capaNCDT series 6630 measuring system is designed for use in industrial areas.
It is used for
- displacement, distance, thickness and movement measurement
- position measuring of parts or machine components
The systems may only be operated within the limits specified in the technical data (see chap. 2.3).
The system should only be used in such a way that in case of malfunction or failure personnel or machinery
are not endanged.
Additional precautions for safety and damage prevention must be taken for safety-related applications.
1.5 Proper Environment
 Protection class for sensor, cable
and preamplifier: IP 54
 Operating temperature sensor: -50 to +150 °C (-58 to +302 °F)
controller: +10 to +40 °C (+50 to +104 °F)
 Storage temperature: -10 to +75 °C (+14 to 167 °F)
 Humidity: 5 - 95% (non condensing)
 Ambient pressure: atmospheric pressure
 The space gap between the sensor face and the target must have an unvarying dielectric constant
 The space gap between the sensor face and the target may not be contaminated (e.g. water, rubbed-off
parts, dust, etc.)
 Vibration According to IEC 68-2-6
 Mechanical shock According to IEC 68-2-27
 EMC: Acc. to EN 50 081-1 RFI emission
EN 61 000-6-2 Immunity to interference

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Functional Principle, Technical Data
2. Functional Principle, Technical Data
2.1 Measuring Principle
The principle of capacitive distance measurement with the capaNCDT system is based on the parallel plate
capacitor. If a constant AC current Icflows through the sensor capacitor, the amplitude of the AC voltage Ucat
the sensor is proportional to the distance dbetween the capacitor electrodes.
The two plate electrodes are formed by the
sensor and the target opposite. The
measured AC voltage is compared with a
compensating voltage, rectified, amplified
and output as an analog voltage.
The sensor design with guard ring electrodes
guarantees that the ideally necessary
homogenous electrical field is realized for all
practical purposes.
The linear characteristic of the measuring
signal is achieved without extra electronic
linearization efforts when measuring on
targets made of electrically conductive
materials (metals). Small changes in the
conductivity or magnetic properties do not
affect the sensitivity or linearity.
d
Uc
ground
screening electrode (guardring)
measuring electrode
target: electrical conductor
Fig. 2.1: Functional principle of the guardring capacitor
eoer
C = A
d
Uc
Xc = =
Ic
1
wCUc = >> Uc d
Ic
weoerA
d~
i
IMPORTANT!
A small target and
bent (uneven)
surfaces cause a
nonlinear
characteristic.

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MICRO-EPSILON
Functional Principle, Technical Data
2.2 Structure
The capaNCDT 6630 is a multi-channel non-contact displacement measuring system for 19 " rack mounting.
All functions such as display and demodulator are pluggable. One measuring channel consists of a sensor
with connecting cable and the controller which comprise the oscillator and demodulator modules. The
electronic modules are Euro size cards and are designed for use in an Eurocard cabinet. The measuring
system has already been calibrated for metal targets.
2.2.1 Controller
The oscillator a part of the controller supplies the sensor with a frequency and amplitude-stable sinusoidal
voltage. The frequency is 31.25 kHz. The oscillator has no
controls and potentiometers.
Demodulation, linearization and amplification of the
distance-dependent measuring signal are the tasks of the
demodulator module. The trimmers (see fig. 2.2)
 Gain
 Zero
are used for setting gain and zero point of the complete
measuring channel (see chap. 5.2).
The analog demodulator output voltage (channel output)
can be set within the range from -10 to +10 Volts at a
maximum output current of 10 mA. The output is short-circuit
proof. The output impedance is less than 10 Ohms.
Zero Gain
Fig. 2.2: DT 6630 with potentiometers

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Functional Principle, Technical Data
2.2.2 Sensors
The sensors are connected to the controller with a 1.6 m (5 ft) long triaxial cable. In order to obtain accurate
measuring results, the surface of the sensor must be kept clean and free from damage.
The capacitive measuring process is area-related. A minimum area is required depending on the sensor
model and measuring range.
ledomrosneSegnargnirusaeMtegratehtforetemaid.niM
mmsehcnimmsehcni
)20(1-106S3.2.pahcees0104.
2.3 Technical Data
DT 6630-S600-1(02)-C1,6 DT 6630(01)-S600-1(02)-C1,6 DT 6630(15)-S600-1(02)-C1,6
200 µm 400 µm 100 µm
50 µm 100 µm 70 µm
calibrated 1±0.1 µm ±0.4 µm ±0.05 µm
uncalibrated 2±0.4 µm ±1.6 µm ±0.2 µm
static30.1 nm 0.2 nm 0.1 nm
dynamic (1 kHz) 10 nm 20 nm 5 nm (4 kHz)
Repeatability static 0.0004 µm 0.0015 µm 0.0004 µm
Model
Measuring range
SMR
Linearity
Resolution
SMR = Start of
measuring range

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MICRO-EPSILON
Functional Principle, Technical Data
FSO = Full Scale Output
1) Controller and Sensor are matched (factory calibrated)
2) Sensor S600-1(02) can be changed without any adjustment (Plug and play)
3) rms per root Hz
DT 6630-S600-1(02)-C1,6 DT 6630(01)-S600-1(02)-C1,6 DT 6630(15)-S600-1(02)-C1,6
Weight Sensor+Cable
Sensor cable Length
Zero
Sensitivity
100 mV/µm 50 mV/µm 100 mV/µm
Output Voltage
4 kHz (-3 dB)
Sensor
Sensor cable
Electronics
Electromagnetic
Compatibility (EMC)
Protection class
Temperature
range
Air humidity
IP 54 (Sensor)
Sensitivity
Frequency response 1 kHz (-3 dB)
Power supply
±10 VDC
Temperature stability Electronics
Long term stability
≤0.01 % FSO/°C
≤0,02 % FSO/month
10 mm (0.4")
Model
Sensor outer diameter
Temperature
stability Sensor
Min. diameter of target
56 g
1.6 m (5 ft.)
10 mm (0.4")
30 ppm/°C
-0.06 µm/°C
5 to 95 % (not condensed)
EN 50081-1
EN 61000-6-2
±15 VDC/±50 mA
-50 to +150 °C (-60 to +300 °F)
-50 to +150 °C (-60 to +300 °F)
+10 to +50 °C (+40 to +122 °F)

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Delivery
3. Delivery
3.1 Unpacking
Remove the parts of the system carefully from the packaging and transport them in such a way that they are
not damaged. Check for completeness and shipping damage immediately after unpacking. The delivery
includes:
1 Signal conditioning electronics (controller)
1 Sensor S600-1(02)
1 Instruction manual
In case of damage or missing parts, please contact the manufacturer or supplier.
3.2 Storage
Storage temperature: -10 to +75 °C (+14 to 165 °F)
Humidity: 5 - 95 % (non condensing)

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MICRO-EPSILON
Installaton and Assembly
4. Installation and Assembly
4.1 Precautionary Measures
No sharp-edged or heavy objects may come into contact with the sensor cable sheath.
In pressurised areas the cable must be protected against pressure loads.
The minimum bending radius is 10 mm (.39 inch). Kinks must be avoided at all cost.
The connections must be checked for a tight fit.
4.2 Sensor
The sensors of the capaNCDT series 6630 may be mounted free-standing or flush. Choose the sensor
position such that the sensor and the target do not touch.
When assembling, make sure that the polished sensor surface is not scratched.
Radial point clamping with grub screw
This simple type of fixture is only recommended for a force and vibration-free installation position.
The grub screw must be made of plastic so that it cannot damage or deform the sensor housing.
Fig 4.1: Radial point clamping with grub screw.
i
IMPORTANT!
A damaged cable
cannot be repaired.
i
IMPORTANT!
Do not use metal
grub screws
ðDanger of
damaging the
sensor
grub screw
Connector side

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Installaton and Assembly
Circumferential clamping
This type of sensor mounting offers maximum reliability because the sensor is clamped around its cylindrical
housing.
It is absolutely necessary in difficult installation environments, e.g. on machines, production plants etc.
Fig. 4.2: Circumferential clamping
Connecting the sensor to the controller
The sensor is connected to the signal conditioning electronics by the sensor cable. The connection is made
by simple plugging. The connector locks automatically.
The tightness of fit can be checked by pulling the connector housing (cable bushing).
The lock can be released and the connector opened by pulling the knurled housing sleeve of the cable
bushing.
i
IMPORTANT!
Switch off the system
when plugging or
releasing the cable
connections.
Pulling on the cable
must be avoided.
Use strain relief.
Mounting with
clamping ring

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MICRO-EPSILON
Installaton and Assembly
4.3 Electronics, Ground Connection, Earthing
The sensor housings are connected to signal ground and supply ground. Mounting the sensor in a metal
holder establishes a sufficient ground connection. If the target is small and isolated from earth it is
advantageous for the measuring process to connect the target to the controller housing.
4.4 Signal Output
Signal output is through the connector DIN 41612 series C on the controller.
5. Operation
5.1 Starting Up
After the complete measuring system has been assembled according to the instructions in chap. 4 the
following points should be checked again.
- Are all the modules plugged into the right slots?
- Are all the sensors and cables fixed tight?
5.2 Zero Point and Gain
The gain and zero point of each measuring channel are adjusted
with the gain and zero trimmer potentiometers (see fig. 2.2).
The setting range is approx. 10 turns per potentiometer. The end
settings at the left and right stops are recognizable by a slight
click.
i
IMPORTANT!
Allow the measuring
system to warm up
for about one minute
before the first
measurement or
calibration.
1/1
0
2
1
1/1
Output signal
Measuring range
Sensor
SMR Target
Fig. 5.1: Calibration steps
SMR = Start of
measuring range

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Operation and Maintenance
i
IMPORTANT!
No linearization
necessary
- Set the distance between the sensor surface and the target (use identical material for calibration and
operation) to start of measuring range. Do not underrun the minimum distance between the sensor and the
target (SMR).
- Set the output voltage to 0 V with the zero potentiometer.
- Determine the desired maximum distance (end of range) between the sensor surface and the target.
- Set the output voltage to 10 V with the gain potentiometer.
-Check the voltage at SMR and correct it if necessary.
- Move target to the end of the measuring range.
- Check the voltage at the end of the measuring range and correct it if necessary.
6. Operation and Maintenance
i
IMPORTANT!
Disconnect the power
supply before
touching the sensor
surface.
ðStatic discharge
ðDanger of injury
MICRO-EPSILON MESSTECHNIK
GmbH & Co. KG
Koenigbacher Str. 15
D-94496 Ortenburg / Germany
Tel. [phone]
Fax [phone]
e-mail: [email protected]
www.micro-epsilon.com
for repair or replacement.
In the case of faults the cause of which is not
clearly identifiable, the whole measuring system
must be sent back for repair or replacement.
Please note the following for operation and
maintenance:
- Make sure that the sensor surface is always
clean.
- Switch off the power supply before cleaning.
- Clean with a damp cloth; then rub the
sensor surface dry.
- Changing the target or very long operating
times can lead to slight reductions in the
operating quality (long-term errors). These
can be eliminated by recalibration (see
chap. 5.2).
In the event of a defect in the controller, the
sensor or the sensor cable, the parts
concerned must be sent to

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MICRO-EPSILON
Warranty
7. Warranty
All components of the system have been checked and tested for perfect function in the factory.
In the unlikely event that errors should occur despite our thorough quality control, this should be reported
immediately to MICRO-EPSILON.
The warranty period lasts 12 months following the day of shipment. Defective parts, except wear parts, will be
repaired or replaced free of charge within this period if you return the device free of cost to MICRO-EPSILON.
This warranty does not apply to damage resulting from abuse of the equipment, from forceful handling or
installation of the devices or from repair or modifications performed by third parties.
No other claims, except as warranteed, are accepted. The terms of the purchasing contract apply in full.
MICRO-EPSILON will specifically not be responsible for eventual consequential damage.
MICRO-EPSILON always strives to supply it's customers with the finest and most advanced equipment.
Development and refinement is therefore performed continuously and the right to design changes without
prior notice is accordingly reserved.
For translations in other languages, the data and statements in the German language operation manual are
to be taken as authoritative.

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Appendix
8. Appendix
8.1 Accessories and Spare Parts
MC 25 Micrometer calibration fixture, range 0-25 mm / 0-1 inch,
2 µm / 0.001 inch divisions , adjustable offset (zero), for all sensors
MC 2,5 Micrometer calibration fixture, range 0-2.5 mm / 0-0.1 inch,
1 µm divisions for sensors S601-0,05 thru to S 600-2
MC 25D Digital micrometer calibration fixture,
Range 0-25 mm / 0-1 inch, adjustable offset (zero), for all sensors
8.2 Sensor Dimensions
(not to scale)
18.6±0.1 (0.73±0.004)
18.3±0.15 (0.72±0.006)
ø10.00h7 (0.39DIA)
Dimension Fit tolerance
µm
0
10h7 -15
1 µm = 0.001 mm = 1 micron
Legend:
mm
(inches)

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MICRO-EPSILON
Appendix
8.3 PIN-Assignment
niP"a"woR"c"woR
2,1DNGD
4- -
6CDV51+
9,8DNGA
01- -
11CDV51-
21langiS
41- -
61- -
81- -
02- -
22- -
42- -
62- -
82- -
03- -
23- -
DGND and AGND must be connected on
the back plane if there is no DGND.
Tab. 8.1: DT 6630, connector DIN 41612,
design C, 64-pin, 2-rows

MI CRO- EPSI LON
X975x122-A010014MSC
MICRO-EPSILON
MESSTECHNIK
Koenigbacher Strasse 15
D-94496 Ortenburg
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
MICRO-EPSILON
www.micro-epsilon.com