MICRO-EPSILON optoNCDT1800 User manual

MICRO-EPSILON
SENSORS & SYSTEMS
Authority in Displacement Measurement
O
C
optoNCDT1800, 1801
Laser Optical
Displacement Sensor
with high speed
CCD-System
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.com
Certified in compliance with
DIN EN ISO 9001: 2000

MICRO-EPSILON
optoNCDT1800, 1801
Contents
1. Safety .............................................................................. 5
1.1 Symbols Used........................................................................................5
1.2 Warnings ................................................................................................5
1.3 Notes on CE Identification .....................................................................6
1.4 Proper Use .............................................................................................6
1.5 Proper Environment ...............................................................................6
2. Laser Class ..................................................................... 7
3. Functional Principle, Technical Data ............................ 8
3.1 Short Description ...................................................................................8
3.2 Technical Data ........................................................................................9
3.3 Block Diagramm .................................................................................. 10
3.4 Operating State of the Controller ......................................................... 10
3.5 Electrical Diagramm of Remote Switch for Laser On/Off ...................... 10
4. Delivery ......................................................................... 11
4.1 Unpacking............................................................................................ 11
4.2 Storage ................................................................................................ 11
5. Installation .................................................................... 11
5.1 Mounting of the Sensor........................................................................ 12
5.2 Mounting of the Controller ................................................................... 14
5.3 Mains Fuse Controller 1801 ................................................................. 15
5.4 Cable Demands ...................................................................................15
6. Measuring Setup and Commissioning....................... 16
6.1 Getting Ready for Operation ............................................................... 16
6.2 Control and Display Elements on the Controller .................................. 16
6.3 Average Setting .................................................................................... 17
6.3.1 Averaging Number N ........................................................................... 18
6.3.2 Averaging Type ................................................................................... 19
6.3.2.1 Moving Average (Default Setting)........................................................ 20
6.3.2.2 Recursive Average............................................................................... 20
6.3.2.3 Median ................................................................................................ 21
6.3.3 Comparison and Impact of Averaging ................................................ 21
6.4 Adjustment of Zero-Point ..................................................................... 26
6.5 Pin Assignment DSUB Connector ........................................................ 26
6.6 Responses of the Analog Output to Errors .......................................... 27
6.7 Error Output Circuit .............................................................................. 28
6.8 Synchronization ................................................................................... 28
6.9 Timing .................................................................................................. 29
7. Measurement Value Output......................................... 30
7.1 Analog Value Output ............................................................................ 30
7.2 Digital Value Output .............................................................................30
7.3 Digital Error Codes ..............................................................................30
7. Messwertausgabe ........................................................ 30
7.1 Messwertausgabe Analog-Spannung ................................................... 30
7.2 Messwertausgabe Digital ..................................................................... 30
7.3 Digitaler Fehlercode.............................................................................30
8. Serial Interface (Option) .............................................. 31
8.1 RS232 .................................................................................................. 31
8.2 RS422/485 ............................................................................................31
8.3 Set-up of the Commands ..................................................................... 32
8.4 Available Commands ...........................................................................33
8.4.1 Information Command ........................................................................ 33
8.4.2 Zero Command................................................................................... 34
8.4.3 Average Command 0 ... 3 ................................................................... 34

MICRO-EPSILON
optoNCDT1800, 1801
8.4.4 Average Command n .......................................................................... 35
8.4.5 Change Average Method .................................................................... 35
8.4.6 Reset Command ................................................................................. 36
8.4.7 Start Command ................................................................................... 36
8.4.8 Stop Command .................................................................................. 37
8.4.9 Displacement Command .................................................................... 37
8.4.10 Thickness Command .......................................................................... 38
8.4.11 Refraction Command .......................................................................... 38
8.4.12 Multilayer Command ........................................................................... 38
9. Instructions for Operating........................................... 39
9.1 Reflection Factor of the Target Surface ................................................39
9.2 Error Influences .................................................................................... 39
9.2.1 Colour Differences ............................................................................... 39
9.2.2 Temperature Influences ........................................................................ 39
9.2.3 Mechanical Vibration .......................................................................... 40
9.2.4 Surface Roughness ............................................................................. 40
9.2.5 Angle Influence .................................................................................... 40
9.3 Optimising the Measuring Accuracy .................................................... 40
10. Warranty ....................................................................... 41
11. Decommissioning, Disposal ....................................... 41
12. Appendix ....................................................................... 42
12.1 Pin Assignment DSUB Connector ........................................................ 42
12.2 Protective Housing ............................................................................... 42
12.3 Free Space for Optics ..........................................................................46
12.4 Service, Repair ..................................................................................... 49

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optoNCDT1800, 1801 5
1. Safety
The handling of the system assumes knowledge of the instruction manual.
1.1 Symbols Used
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
• Caution - use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation exposure.
• Avoid unnecessary laser radiation to be exposed to the human body
- Switch off the sensor for cleaning and maintenance.
- Switch off the sensor for system maintenance and repair if the sensor is
integrated into a system.
• Avoid banging and knocking the sensor and the controller
> Damage to or destruction of the sensor and/or the controller
•The power supply may not exceed the specified limits
> Damage to or destruction of the controller and/or the sensor
• Power supply and the display-/output device must be connected in
accordance with the safety regulations for electrical equipment
> Danger of injury
> Damage to or destruction of the controller and/or the sensor
• Protect the sensor cable against damage
> Destruction of the sensor
> Failure of the measuring device
• Avoid continuous exposure to spray on the sensors and the controller
> Damage to or destruction of the controller and/or the sensor
• Operate sensor and controller only with the same serial number
> Loss of the specified technical data
•The housing of the series 1801 controller housing may only be opened by
authorised persons.
> Danger of injury through mains voltage
> Damage to or destruction of the controller
Safety
DANGER!
Do not open series 1801
controller housing!

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optoNCDT1800, 1801 6
1.3 Notes on CE Identification
The following applies to the measuring system series 1800, 1801:
EC regulation 89/336/EEC
EC regulation 73/23/EEC (Series 1801 only)
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
Königbacher Str. 15
94496 Ortenburg
The system is designed for use in industry and to satisfy the requirements of the
standards • EN 50 081-1 Spurious emission
• EN 61 000-6-2 Resistance to disturbance
The systems satisfy the requirements if they comply with the regulations described in
the operating manual for installation and operation.
1.4 Proper Use
• The series 1800/1801 measuring system is designed for use in industrial areas.
• It is used
- for measuring displacement, distance, position and elongation
- for in-process quality control and dimensional testing
• The measuring system may only be operated within the limits specified in the
technical data (chap. 3.2).
• The system should only be used in such a way that in case of
malfunctions 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 sensor: IP 65 (Only with sensor cable, supply/output cable
connected )
• Protection class controller: IP 50
• Lenses are excluded from protection class. Contamination of the lenses leads to
impairment or failure of the function.
• Operating temperature: 0 to +50 °C (+32 to +104 °F)
• Storage temperature: -20 to +70 °C (-4 to +158 °F)
• Humidity: 5 - 95 % (no condensation)
• Pressure: atmospheric pressure
• EMC: acc. EN 50 081-1 Spurious emission
EN 61 000-6-2 Resistance to disturbance
Safety
i
IMPORTANT!
The protection class is
limited to water (no
penetrating liquids or
similar)

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optoNCDT1800, 1801 7
Laser Class
2. Laser Class
The opto 1800/1801 sensors operate with a semiconductor laser with a wavelength of
670 nm (visible/red). The laser is operated on a pulsed mode, the pulse frequency
corresponding to the measuring frequency. The duration of the pulse is regulated in
dependency on the object to be measured and can form an almost permanent beam.
The maximum optical output is ≤1 mW. The sensors are classified in Laser Class 2 (II).
Class 2 (II) lasers are not notifiable and a laser protection officer is not required either.
The following warning labels are attached to the cover (front and/or rear side) of the
sensor housing:
The laser warning labels for Germany have already been applied (see above). Those for
other non German-speaking countries an IEC standard lable is included in delivery and
the versions applicable to the user’s country must be applied before the equipment is
used for the first time. Laser operation is indicated by LED (see chap. 3.4).
i
IMPORTANT!
If both warning labels are
covered over when the unit
is installed the user must
ensure that supplementary
labels are applied.
WARNING!
Never deliberately look into
the laser beam!
Consciously close your
eyes or turn away
immediately if ever the
laser beam should hit your
eyes.
IEC Standard
During operation of the sensor ILD
1800 the pertinent regulations acc. to
EN 60825-1 on "radiation safety of
laser equipment" must be fully
observed at all times.
FDA Norm
The sensor complies with all applica-
ble laws for the manufacturer of laser
devices. This system is classified by
the Center for Devices and Radio-
logical Health (CDRH) as a Class II
laser device.
Although the laser output is low looking directly into the laser beam must be avoided.
Due to the visible light beam eye protection is ensured by the natural blink reflex.
The housing of the optical sensors optoNCDT1800/1801 may only be opened by
the manufacturer. For repair and service purposes the sensors must always be
sent to the manufacturer.
Fig. 2.1: True reproduction of the sensor with its actual location of the warning labels
Laser spot Laser spot

MICRO-EPSILON
optoNCDT1800, 1801 8
3. Functional Principle, Technical Data
3.1 Short Description
Depending on the distance the diffuse fraction of the reflection of this point of light is
then focussed on, to a position sensitive element (CCD-array) by the receiving lens,
which is arranged at a certain angle with respect to the optical axis of the laser beam.
From the CCD signal the intensity of the diffuse reflection is determined in real time.
This enables the sensor to compensate intensity fluctuations still during processing of a
measured-value, which it does in a very wide reflection factor range (from almost
complete absorption to almost total reflection).
LEDs on the controller (see chap. 3.4 and 6.2) signal:
- Out of range (upper and lower range values), poor Target (unfit or no object)
- In range
- Mid range
- Laser ON/OFF
- Power on
LEDs on the sensor signal:
- Out of Range (upper and lower range values)
- Poor Target (unfit or no object)
- Mid range
- Laser ON/OFF
Functional Principle, Technical Data
i
IMPORTANT!
Sensor and controller are
one unit.
SMR
Start of measuring range
MMR
Midrange
EMR
End of measuring range
Fig. 3.1: Triangulation principle
Sensor
ILD 1800/1801
Analog output
Measuring range
0 VDC (MMR)
+5 VDC (EMR)
SMR
-5 VDC
Reference distance
The opto 1800/1801 system
consists of an laser-optical sensor
and a signal conditioning
electronics (controller). The opto
1800/1801 sensor uses the principle
of optical triangulation, i.e. a
visible, modulated point of light is
projected onto the target surface.

MICRO-EPSILON
optoNCDT1800, 1801 9
3.2 Technical Data
Functional Principle, Technical Data
FSO = Full Scale Output
SMR = Start of measuring range
MR = Midrange
EMR = End of measuring range
The specified data apply for a diffusely reflecting matt white ceramic target.
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egnargnirusaemfotratS )"(mm )49.(42 )81.1(03 )75.1(04 )77.1(54 )67.2(07 )67.2(07 )78.7(002 )78.7(002 )7.12(055
)egnardim=(ecnatsidecnerefeR )"(mm )89.(52 )83.1(53 )79.1(05 )67.2(07 )27.4(021 )96.6(071 )7.71(054 )6.22(575 )6.22(575
egnargnirusaemfodnE )"(mm )20.1(62 )75.1(04 )63.2(06 )47.3(59 )96.6(071 )6.01(072 )6.72(007 )4.73(059 )6.32(006
ytiraeniL OSF% 1.0± 80.0± 1.0± 80.0± 1.0±
noituloseR OSF%10.:zHk5ta mμ2. mμ1 mμ2 mμ5 mμ01 mμ02 tamμ05
zHk5.2
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retemaidtopS RMS
RM
RME
mμ08
mμ53
mμ08
mμ011
mμ05
mμ011
mμ023
mμ54
mμ023
mμ075
mμ55
mμ075
mμ047
mμ06
mμ007
mμ0031
mμ0031
mμ0031
mμ0051
mμ0051
mμ0051
mμ0051
mμ0051
mμ0051
004.rppa
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erutarepmetegarotS )F°851ot4-(C°07+ot02-
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tupuO dradnats
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V5±
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gk1
gk5.1
1) The data for the sensor are based on
DIN EN 60028-2-6 (vibration) and
DIN EN 60028-2-29 (shock).

MICRO-EPSILON
optoNCDT1800, 1801 10
Functional Principle, Technical Data
Laser control
Softstart
CCD line
Signal conditioning
AGC
Control signal
for laser
Clock generator
AD
converter
State Average 1 Average 2
RS485
RS232
DA
converter
Line filter
Switch
Fuse
85 - 264 VAC
Ground wire
+24 VDC Power supply
RESET
Laser ON/OFF
RS485
RS232
Sync. IN/OUT
Zero
Error 1, 2
Output (±5 VDC)
Digital
signal
processor
Power
supply unit
i
IMPORTANT!
If pin 4 and pin 17 (D-SUB
receptacle) are not
connected the laser is off.
optoNCDT1801 only
In switched on mode the
current through pin 4 and 17 is
at total less than 10 mA. The
residual voltage should be
less 0.1 V at the same time.
The 25-pin D-SUB connector
(contained in the delivery)
contains a jumper between pin
4 and 17.
Reaction Time for Laser-On:
Correct measuring data are
sent by the sensor
approximately 11 ms after
signal for Laser-On.
The laser can be switched of with an external
switch between the pins 4 and 17 for service
jobs. Switching can be done with a transistor
(e.g. open collector in an optocoupler) or a
relay contact.
+24 VDC
3.3 kOhm
Pin 4
Pin 17
Laser
ON/OFF
Controller
Fig. 3.2: Electrical wiring for laser on/off
I < 10 mA
etatSDEL roloC
KO neerg
egnardiM wolley
egnarfotuo;tegratrooP der
fforesaL -
rewoPDEL
norewoP
3.3 Block Diagramm
3.4 Operating State of the Controller
3.5 Electrical Diagramm of Remote Switch for Laser On/Off