MICRO-EPSILON colorSENSOR CFO Series User manual

CFO100
CFO200
Instruction Manual
colorSENSOR CFO

Sensor system for testing opaque, transparent and self-luminous bodies
MICRO-EPSILON Eltrotec GmbH
Manfred-Wörner-Straße 101
73037 Göppingen / Germany
Tel. [phone]
Fax [phone]
e-mail [email protected]
www.micro-epsilon.com

colorSENSOR CFO
Contents
1. Safety ........................................................................................................................................ 7
1.1 Symbols Used ................................................................................................................................................. 7
1.2 Warnings.......................................................................................................................................................... 7
1.3 Notes on CE Marking ...................................................................................................................................... 8
1.4 Proper Use....................................................................................................................................................... 8
1.5 Proper Environment......................................................................................................................................... 9
2. Functional Principle, Technical Data ....................................................................................... 9
2.1 Short Description............................................................................................................................................. 9
2.2 Measuring Principle ......................................................................................................................................... 9
2.3 Functions ....................................................................................................................................................... 10
2.3.1 General ......................................................................................................................................... 10
2.3.2 Color Processing.......................................................................................................................... 10
2.4 Technical Data ............................................................................................................................................... 11
2.5 Displays ......................................................................................................................................................... 13
3. Delivery................................................................................................................................... 14
3.1 Unpacking/Included in Delivery .................................................................................................................... 14
3.2 Storage .......................................................................................................................................................... 14
4. Assembly ................................................................................................................................ 14
4.1 Attachment and Mounting ............................................................................................................................. 14
4.2 Operating Elements....................................................................................................................................... 16
4.3 Sensor LEDs .................................................................................................................................................. 17
4.4 Electrical Connections................................................................................................................................... 19
4.4.1 System, Power and PLC (SYS) .................................................................................................... 20
4.4.2 Ethernet (ETH) ............................................................................................................................. 21
4.4.3 Digital I/O (I/O).............................................................................................................................. 22
4.4.4 USB............................................................................................................................................... 23
4.4.5 Switching Input Circuit ................................................................................................................. 24
4.4.6 Switching Output Circuit .............................................................................................................. 26
4.5 Optical Fiber, Sensor Cable........................................................................................................................... 28

colorSENSOR CFO
5. Operation ................................................................................................................................ 30
5.1 Commissioning.............................................................................................................................................. 30
5.2 Membrane Keys............................................................................................................................................. 32
5.2.1 Keys and Key Assignments.......................................................................................................... 33
5.3 Brief Instructions............................................................................................................................................ 34
5.4 Operation Using Foil Keyboard ..................................................................................................................... 36
5.4.1 Intensity ........................................................................................................................................ 37
5.4.1.1 Automatic Level Adjustment ....................................................................................... 38
5.4.1.2 Manual Intensity Control ............................................................................................. 39
5.4.2 Color Management....................................................................................................................... 41
5.4.2.1 Teaching Colors .......................................................................................................... 42
5.4.2.2 Deleting Individual Color Groups................................................................................ 43
5.4.2.3 Saving or Quitting upon Conclusion of Teaching Process......................................... 43
5.4.3 Deleting Color Table ..................................................................................................................... 44
5.4.4 Tolerance Setting.......................................................................................................................... 45
5.4.5 Options ......................................................................................................................................... 47
5.4.5.1 IN0 Switching Input Function Assignment.................................................................. 49
5.4.5.2 Hold Time .................................................................................................................... 51
5.4.5.3 Multiple Teach Mode ................................................................................................... 52
5.4.5.4 Tolerance Mode........................................................................................................... 53
5.4.5.5 Color Tolerance Parameters........................................................................................ 55
5.4.5.6 Conclusion of Option Settings: Save or Quit.............................................................. 57
5.5 Trigger Inputs................................................................................................................................................. 58
5.6 Key Lock ........................................................................................................................................................ 58
5.7 Operation Via Web Interface.......................................................................................................................... 59
5.7.1 Prerequisites................................................................................................................................. 59
5.7.2 Access via Ethernet...................................................................................................................... 61
5.7.3 Displaying Readings Via Web Interface....................................................................................... 62
5.7.4 Home Menu.................................................................................................................................. 63
5.7.5 Menu Settings............................................................................................................................... 64
5.7.5.1 Preliminary Remarks ................................................................................................... 64
5.7.5.2 Recognition Profile ...................................................................................................... 65
5.7.5.3 Color Table .................................................................................................................. 68
5.7.5.4 Outputs........................................................................................................................ 74
5.7.5.5 Settings Ethernet......................................................................................................... 75
5.7.5.6 Managing Settings ...................................................................................................... 77
5.7.5.7 Extras........................................................................................................................... 79
5.7.6 Color Test Menu............................................................................................................................ 80
5.7.7 Help/Info Menu ............................................................................................................................. 84
5.8 Factory Reset................................................................................................................................................. 85

colorSENSOR CFO
6. Instructions for Operation...................................................................................................... 86
6.1 Cleaning......................................................................................................................................................... 86
7. Warranty.................................................................................................................................. 86
8. Service, Repair ...................................................................................................................... 87
9. Decommissioning, Disposal ................................................................................................. 87
Appendix
A 1 Accessories ............................................................................................................................ 88
A 2 Factory Settings ..................................................................................................................... 94
A 3 API Communication with Controller (Version 0.7.1)............................................................. 95
A 3.1 Overview ........................................................................................................................................................ 95
A 3.2 Examples of Manual Queries......................................................................................................................... 95
A 3.3 Sample Tools for Manual Queries ................................................................................................................. 95
A 3.4 Query Example .............................................................................................................................................. 96
A 3.5 API.................................................................................................................................................................. 97
A 3.6 Errata............................................................................................................................................................ 120

colorSENSOR CFO

Page 7
Safety
colorSENSOR CFO
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:
CAUTION Indicates a hazardous situation which results in minor or moderate injuries if not
avoided.
NOTICE
Indicates a situation which results in property damage if not avoided.
Indicates a user action.
iIndicates a user tip.
1.2 Warnings
Connect the power supply and the display/output device in accordance with the safety regulations for electri-
cal equipment.
> Danger of injury
> Damage to or destruction of sensor
The power supply must not exceed the specified limits.
> Danger of injury
> Damage to or destruction of sensor
Avoid shocks and impacts to the sensor.
> Damage to or destruction of sensor
Never fold the optical fiber and do not bend them in tight radii.
> Damage to or destruction of fiber optics, partial failure of the measuring device
Protect the ends of the optical fibers against contamination (use protective caps).
> Failure of the measuring device
CAUTION
NOTICE

Page 8
Safety
colorSENSOR CFO
1.3 Notes on CE Marking
The following applies for the colorSENSOR CFO: EMC regulation 2014/30/EU
Products which carry the CE mark satisfy the requirements of the quoted EU directives and the European
standards (EN) listed therein.
The EU declaration of conformity is kept available according to EU directive article 10 by the authorities
responsible at
MICRO-EPSILON Eltrotec GmbH
Manfred-Wörner-Straße 101
73037 Göppingen / Germany
The measuring system is designed for use in industry and satisfies the requirements.
1.4 Proper Use
The colorSENSOR CFO is intended for use in the industrial sector. It is used for color measurement in
- Printing
- Packaging
- Cleaning
- Quality control
- Process documentation
The system may only be operated within the limits specified in the technical data, see Chap. 2.
- The sensor must be used in such a way that no persons are endangered or machines and other material
goods are damaged in the case of malfunctions or total failure of the controller.
- Take additional precautions for safety and damage prevention for safety-related applications.

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Functional Principle, Technical Data
colorSENSOR CFO
1.5 Proper Environment
- Protection class: IP 65
- Operating temperature: -10 °C ... +55 °C
- Storage temperature: -10 °C ... +85 °C
- Humidity: 20 - 80 % relative humidity (non-condensing)
- Ambient pressure: Atmospheric pressure
The sensor is stable and can be used in a wide temperature range. When all sockets are in use or covered
with a protective cap, the sensor can be used safely even under contaminated environmental conditions.
2. Functional Principle, Technical Data
2.1 Short Description
The colorSENSOR CFO is an optical sensor for precise color recognition in industrial applications, built into
a sturdy aluminum housing. The controller is distinguished by high color accuracy, state-of-the-art interfaces
and intuitive operation. Optical fibers, which can be adapted for various measuring tasks, are connected to
the controller. The rear of the sensor allows fixation using the dovetail principle. A coupling is available sepa-
rately for mounting on a DIN rail, see Chap. A 1.
2.2 Measuring Principle
The specimen is illuminated with homogeneous, white light from an LED. An illuminated dot is projected with
the aid of a optical fiber onto the surface to be checked. The light is reflected diffusely at a specified angle
and transmitted by the same optical fiber to a perceptive True Color Sensor (XYZ) where it is analyzed.
The three light wavelength ranges, i.e.
- X = long wave,
- Y = medium wave and
- Z = short wave frequency ranges
from the specimen are used to determine the diffuse color reflections and transformed to a selected color
space. These color values are calculated according to the procedure described in DIN 5033.

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Functional Principle, Technical Data
colorSENSOR CFO
The transformed values (colors), are stored in the sensor and continuously compared to the current color.
When the colors are all within the entered tolerance range, a recognition signal is sent to the digital switching
outputs and the keyboard indicators. This process allows storage of multiple colors in various color spaces.
In the same manner, the color values and the recognized color are output as data protocol via the available
interfaces as required.
2.3 Functions
2.3.1 General
- Recognition of stored colors
- Control interfaces
Keys and displays
REST API
Terminal (RS232)
Trigger inputs
- Signaling/monitoring of recognition results via
Switching outputs
all interfaces mentioned above
2.3.2 Color Processing
- Compilation of colors to form recognition groups
- Variable color tolerance for each recognition group
- Selection of various color spaces
- Moving average

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Functional Principle, Technical Data
colorSENSOR CFO
2.4 Technical Data
Model CFO100 CFO200
Object distance Depending on optical fiber used as well as front lens attachment
Reflex optical fiber typ. 2 mm - 25 mm with lens typ. 5 mm - 100 mm 1)
Light spot diameter Depending on optical fiber used as well as front lens attachment
Reflex optical fiber typ. dia. 0.6 mm - 20 mm 1)
Color distance ∆E ≥ 1.0 ∆E ≥ 0.5
Color spaces XYZ, xyY, L*a*b*, L*u*v*, u'v'L*
Distance models for
color recognition
Classification, sphere (∆E), cylinder (∆L, ∆ab), box (∆L, ∆a, ∆b) with custom toler-
ance parameters for each color group learned
Averaging Automatic adaptation using a maximum
of 200 values
Automatic adaptation using a maximum
of 57600 values
Size of color memory Max. 255 colors in non-volatile EEPROM
with parameter sets
Max. 4000 colors in non-volatile
EEPROM with parameter sets
Switching frequency
Max. 10 kHz
(depending on number of colors learned
and setting for averaging)
Max. 30 kHz
(depending on number of colors learned
and setting for averaging)
Reproducibility ∆E ≥ 0.5 ∆E ≥ 0.25
Temperature drift X,Y 0.1 % / K
Light source White light LED (425 - 750 nm); AC op-
eration (luminous flux at 1 kHz 130 lm)
(adjustable or OFF for primary light
source, switchable via software)
White light LED (425 - 750 nm);
AC operation; DC operation
(luminous flux at 1 kHz 220 lm)
(adjustable or OFF for primary light
source, switchable via software)
Type of illumination via optical fiber
Effect from
illumination Automatically adaptable
Ambient light Up to 5000 Lux
Alternating light opera-
tion AC: typ. 1 kHz; max. 10 kHz AC: typ. 1 kHz; max. 10 kHz
1) Model: FAR - T - A 2.0 - 2.5 - 1200 - 67˚ Reflex
Model: FAD - T - A 2.0 - 2.5 - 1200 - 67˚ transmitted light

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Functional Principle, Technical Data
colorSENSOR CFO
Model CFO100 CFO200
Power supply +18 - 28 V DC
Power consumption Typ. 500 mA
Max. switching current 100 mA
TEACH key/inputs 5 keys and IN0 for externally teaching
color reference, tolerance stage and
configuring sensor
5 keys and IN3 for externally teaching
color reference, tolerance stage and
configuring sensor
Outputs OUT 0 - OUT 2, digital (0V/+Ub), 100 mA
max. switching current
OUT 0 - OUT 27, digital (0V/+Ub),
100 mA max. switching current
Switching state display Visualization with 13 white LEDs
Interface Ethernet and RS232
Process interface
Ethernet, RS232 and USB
Process interface
Type of connector To Power/PLC: 8-pin Male flange connec-
tor (M12A)
to PC: 4-pin Female flange connector
(M12D) (Ethernet DHCP compatible)
To Power/PLC: 8-pin Male flange connec-
tor (M12A)
to PLC: 8-pin Female flange connector
(M12A)
to PC: 4-pin Female flange connector
(M12D) (Ethernet DHCP compatible)
Connection cable To Power/PLC: Part No. 11234717/
to PC: Part No. 11234735 (Ethernet)
To Power/PLC: Part No. 11234717/
to PLC: Part 11234722
to PC: Part No. 11234735 (Ethernet)
Receiver 3-color filter detector (XYZ TRUE COLOR Detector, color filter curve according to
CIE1931)
Software Web browser operation
Pulse extension Adjustable > 30 µs
Signal amplification 2 Stages, automatic 5 Stages, automatic
Housing material Aluminum, anodized black
Operating temperature -10 °C to +55 °C
Storage temperature -10 °C to +85 °C
Protection class IP 65
Weight 190 g

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Functional Principle, Technical Data
colorSENSOR CFO
2.5 Displays
The sensor displays indicate the following information:
- Operating mode (ON / OFF)
- Current state of switching outputs
- Key lock
- Selected submenu
The following settings are visible depending on the submenu selected:
- LED intensity
- Output coding
- Tolerance
- Tolerance model
- Hold time
- Trigger
- Teach function (single or multiple)

Page 14
Delivery
colorSENSOR CFO
3. Delivery
3.1 Unpacking/Included in Delivery
1 colorSENSOR CFO Sensor
1 instruction manual
Carefully remove the testing system parts from the packaging and ensure furthermore that the goods
are forwarded in such a way that no damage can occur.
Check the delivery for completeness and shipping damage immediately after unpacking.
In case of damage or missing parts, please contact the manufacturer or supplier immediately.
You will find optional accessories in appendix, see Chap. A 1
3.2 Storage
Storage temperature: -10 to +85 °C
Humidity: 5 to 95 % (non-condensing)
4. Assembly
4.1 Attachment and Mounting
iPay attention to careful handling during mounting and operation.
The colorSENSOR CFO can be placed on a level surface or fastened with the dovetail on the rear of the sen-
sor.
i
Position the sensor so that the connections, controls and displays are not concealed. We recommend
maintaining a clearance of 2 - 3 cm at the cooling ribs on the left and right sides.
A mounting adapter is available separately for mounting with screws or with a mounting rail (TS35 top-hat
rail) according to DIN EN 60715 (DIN Rail), see Chap. A 1.

Page 15
Assembly
colorSENSOR CFO
26.9 (1.06)
12.9 (.51)
19.9 (.78)
11 (.43)
25 (.98)
39 (1.53)
10 (.39)
10
(.39)
50 (1.97)
2
(.08)
25 (.98)
24 (.94)
15.1 (.94)
19.7
(.78)
R0.3
M18x1
11
(43)
13 (51) 31
(1.22)
60 (2.36)
7.25 (.29) 13 (.51)
M12x1
Fig. 1 Scale drawing of colorSENSOR CFO100/CFO200, dimensions in mm, not to scale
NOTICE
Do not allow the
end surfaces of the
optical fiber to hit
against edges or
surfaces. Reduced
signal quality or fail-
ure of the measuring
device.

Page 16
Assembly
colorSENSOR CFO
4.2 Operating Elements
The operating concept, as well as the function of the foil keyboard, are described in the Chapter Foil Key-
board, see Chap. 5.2.
Key Meaning Location
TEACH
AUTO
Teach /
Automatic level adjustment
INT Illumination intensity
Enter / Save
CLR Delete
Arrow pointing left
OPT Select options
Arrow pointing right
ESC
TOL
Escape / quit without saving
Color tolerances
Fig. 2 Controls

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Assembly
colorSENSOR CFO
4.3 Sensor LEDs
Eight LEDs (output indicators) are located at the bottom right edge of the keyboard. Moreover an additional
LED (key indicator) is embedded in each key at the top left.
The LEDs can assume the following states:
- Switched off
- Continuously illuminated
- Various flashing rhythms
LED Color Meaning Location
Green Operating voltage present
Red Key lock active
TEACH
AUTO
White Color teach menu
INT White Menu for automatic illumination adjustment
CLR White Delete memory menu
OPT White Option selection menu
ESC
TOL
White Tolerance adaptation menu
Fig. 3 Sensor LEDs - keys

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Assembly
colorSENSOR CFO
A list of increasing numbers (1 ... 8) is located to the right of the eight output LEDs, see Fig. 4. These are used
to assign the eight output LEDs to the eight switching outputs available1. The options are located to the left of
the eight output indicators, see Fig. 3, see Fig. 4.
Options OUT / LEVEL Color Meaning
GATE 1 White Triggered recognition
TEACH 2 White Triggered teach
HOLD 3 White Hold time
MULTI 4 White Multiple teach
CLASSIFY 5 White Classification
SPHERE 6 White Sphere (∆E)
CYLINDER 7 White Cylinder (∆L, ∆ab)
BOX 8 White Box (∆L, ∆a, ∆b)
Fig. 4 Sensor LED‘s
1) Only three switching outputs are present on the colorSENSOR CFO100. These correspond to LEDs 1 ... 3.
These correspond to LEDs 1 ... 3.

Page 19
Assembly
colorSENSOR CFO
4.4 Electrical Connections
The cable shields are connected to the connector housings. The connector housings are in contact with the
controller housing.
Perform all electrical connections only in the switched-off state.
> Injury hazard from high voltage
1
3
2
4
Fig. 5 Connector location on
colorSENSOR CFO200
Fig. 6 Electrical connections on
colorSENSOR CFO200
1 SYS = System (Power/PLC) Power supply, switching outputs, switching inputs,
RS232
2 ETH = Ethernet Connection to PC
3 I/O = Digital I/O (PLC), CFO200 only Switching inputs and outputs
4 USB, CFO200 only USB process interface
CAUTION

Page 20
Assembly
colorSENSOR CFO
The frequently used and standardized M12 sockets allow use of standard commercial cables to match the
specific, special requirements of the specific operating environment. For example, cables are available, which
are oil-resistant or suitable for use with drag chains.
The input and output signals from the sensor as well as the power supply and communication connections
are accessible using standardized M12 connectors (male and female). All connection cables with the features
required for the application (e.g. drag chain compatibility or resistance to oil) and the matching coding can be
used with the sensors.
All sensor connections are unique in terms of number of pins and gender so that mix-ups are not possible.
To achieve IP65 class protection it is necessary to seal unused sockets with a protective cap (including gas-
ket), and use a optical fiber with FASOP connector and corresponding gaskets.
4.4.1 System, Power and PLC (SYS)
For connection of the power supply, one digital input, process RS232 interface and three digital outputs
directly to a PLC.
- 8-pin Male connector
- 24 VDC ± 15 %, Imax < 500 mA
- not electrically separated, polarity reversal protection, GND is electrically connected to GND for switching
outputs.
Pin Color 1Function Description
View of sensor
flange connec-
tor
1
7
6
5
4
3
2
8
Pin sequence, 8-pin
Cable socket,
viewed from solder
side
1) Conductor color
CAB-M12-8P-Bu-ge
1 White IN0 Trigger input
2 Brown +UB Operating voltage (10 ... 28 VDC)
Operating voltage (10 ... 28 VDC)
3 Green TX Terminal (RS 232 transmit)
4 Yellow RX Terminal (RS 232 receive)
5 Gray OUT0 Switching output (NPN/PNP/PP)
6 Pink OUT1 Switching output (NPN/PNP/PP)
7 Blue GND Ground connection
8 Red OUT2 Switching output (NPN/PNP/PP)
Fig. 7 SYS Power / PLC connector