Festo CHB-C-N User manual

Description
Function
Type CHB-C-N
Description
8046182
en 1508e
[8043163]
Checkbox Compact

Festo Checkbox ® is a registered trademark of Festo AG & Co. KG,
73726 Esslingen, Germany

Contents and general safety instructions
I
Festo GDCA-CHB-C-N en 1508e English
Original de.......................................
Version en 1508e..................................
Designation GDCA-CHB-C-N.........................
Order no. 8046182.................................
 (Festo AG & Co. KG, 73726 Esslingen, Germany, 2015)
Internet:http://www.festo.com
e-mail: [e-mail]
Reproduction, distribution or sale of this document or com
munication of its contents to others without express authoriz
ation is prohibited. Offenders will be liable for damages.
All rights reserved in the event that a patent, utility model or
design patent is registered.

Contents and general safety instructions
II Festo GDCA-CHB-C-N en 1508e English
Intended use V..........................................................
Operating requirements VII.................................................
Target group VII..........................................................
Service VII...............................................................
Scope of delivery VII.......................................................
Important user information VIII..............................................
Information regarding this description XI.....................................
Documentation on the Checkbox XI..........................................
Product specific terms and abbreviations XII...................................
1. System overview 1-1...............................................
1.1 The Festo Checkbox 1-3.............................................
1.2 Software package 1-4...............................................
1.3 Function range 1-5.................................................
1.4 Operational principle 1-6............................................
1.5 Buffer zone 1-9....................................................
2. Mounting and commissioning 2-1....................................
2.1 General instructions 2-3.............................................
2.2 Mounting 2-5......................................................
2.3 Electrical connection 2-9............................................
2.3.1 Selecting the power supply unit 2-15............................
2.3.2 Connection of the operating voltage 2-16........................
2.3.3 Power supply for external components 2-17......................
2.4 Adapting system parameters with CheckKon 2-18.........................
2.5 Commissioning the Checkbox 2-20.....................................
2.6 Error diagnostics 2-27...............................................
3. I/O module 3-1....................................................
3.1 Interfaces 3-3.....................................................
3.2 Actuators 3-5.....................................................
3.3 Buffer/Feeder 3-8..................................................
3.4 Ethernet interface 3-12...............................................
3.5 Encoder 3-16.......................................................

Contents and general safety instructions
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Festo GDCA-CHB-C-N en 1508e English
3.6 PLC 3-18...........................................................
3.6.1 Start/Stop mode 3-21........................................
3.6.2 Selection of the check program 3-23............................
3.6.3 Counting function 3-28.......................................
3.6.4 Actuators 3-32..............................................
3.6.5 Buffer zone sensors/small parts conveyor 3-34...................
3.6.6 Fault messages 3-37.........................................
3.6.7 Locking the control panel 3-37.................................
4. Teach parts 4-1....................................................
4.1 Preparing the Teach procedure 4-3....................................
4.2 The teach procedure 4-5............................................
4.2.1 Positioning the sample parts 4-9..............................
4.2.2 Observing the scatter of characteristics 4-10.....................
5. Checking parts 5-1.................................................
5.1 The test procedure 5-3..............................................
5.2 Test mode 5-5.....................................................
5.3 Influence of tolerance 5-8...........................................
5.4 Evaluation of the test results 5-11......................................
5.4.1 Checking the features 5-11....................................
5.4.2 Checking the orientation 5-12..................................
6. Maintenance 6-1..................................................
6.1 Cleaning 6-4......................................................
6.2 Replacing the prism module 6-5......................................
A. Technical appendix A-1.............................................
A.1 Operating malfunctions A-3..........................................
A.1.1 General fault finding A-3.....................................
A.1.2 Fault messages and warnings A-4..............................
A.2 Status displays on the device A-9.....................................

Contents and general safety instructions
IV Festo GDCA-CHB-C-N en 1508e English
A.3 Examples for calculation of the features A-10.............................
A.3.1 Band width and tolerance A-10.................................
A.3.2 Scatter of characteristics A-12.................................
A.3.3 Inspection part deviation A-13.................................
A.4 Connections A-15...................................................
A.5 Technical data A-20..................................................
A.6 Accessories A-23....................................................
B. Index B-1.........................................................

Contents and general safety instructions
V
Festo GDCA-CHB-C-N en 1508e English
Intended use
The Festo Checkbox Compact®has been designed for use
under normal operating conditions in closed rooms in indus
trial installations.
The Checkbox documented in this description is intended
exclusively for use as follows: Contactless checking of the
position and quality of small parts e.g. screws, springs, bolts,
which pass through on a conveyor belt.
Use the Checkbox only as follows:
– As intended in an industrial environment
– In perfect technical condition
– In its original state without unauthorised modifications.
Only the conversions or modifications described in the
documentation supplied with the product are permitted.
The guarantee will become invalid if the Checkbox is
opened.
The maximum values specified for pressures, temperatures,
electrical connections etc. must not be exceeded.
Please observe the standards specified in the relevant
chapters and comply with the regulations of the trade associ
ation and the German Technical Control Board (TÜV), the VDE
conditions as well as the relevant national regulations.

Contents and general safety instructions
VI Festo GDCA-CHB-C-N en 1508e English
Light beam
With regard to the blue light hazard, the Checkbox Com
pact exceeds the limit values of the free group in ac
cordance with DIN EN 62471:2009-03. Therefore, an assi
gnment to risk group 1 applies for the blue light hazard.
Looking at the light source for a long or prolonged period
can dazzle your eyes and cause irritation.
Take measures to prevent eye exposure:
Do not remove any housing parts.
Only mount/remove the prism support when the power
supply is switched off.
Also take measures to ensure that if the light beam is
reflected off mirrored or reflective objects, it does not
pose a hazard (for example, by providing screening).
Do not look directly into the light beam and do not direct
the beam into the eyes of other people.
Ordinary light sources are divergent, i.e. the illuminated area
becomes larger as the distance from the light source in
creases. As a result, the risk of eye injury decreases as the
distance from the light source increases. However, as the
Checkbox Compact uses parallel light, the risk of eye injury is
not reduced as the distance increases; this applies to both
looking directly at the beam and looking into the beam via a
reflective surface.

Contents and general safety instructions
VII
Festo GDCA-CHB-C-N en 1508e English
Operating requirements
– The features of the conveyed part which determine the
orientation and quality must be recognizable and distin
guishable for the Checkbox.
– It must be possible to integrate the Checkbox in the ma
terial flow.
Target group
This description is intended exclusively for technicians
trained in control and automation technology who have ex
perience in installing and commissioning electronic systems.
Service
Please consult your local Festo Service if you have any tech
nical problems.
Scope of delivery
Checkbox Compact Module with control panel, I/O interface, light source and
camera
Operator package Data storage medium, brief description

Contents and general safety instructions
VIII Festo GDCA-CHB-C-N en 1508e English
Important user information
Danger categories
This description includes instructions on the possible dangers
that can occur if the product is used incorrectly. These in
structions are marked with a signal word (Warning, Caution,
etc), printed on a shaded background and marked addition
ally with a pictogram. A distinction is made between the fol
lowing danger warnings:
Warning
... means that failure to observe this instruction may result
in serious personal injury and/or damage to property.
Caution
... means that failure to observe this instruction may result
in personal injury and/or damage to property.
Note
... means that failure to observe this instruction may result
in damage to property.
The following pictograms also mark passages in the text
which warn about the incorrect handling of certain compon
ents.
Electrostatically sensitive devices. Incorrect handling can
result in damage to components.
Marking of special information
The following pictograms mark passages in the text which
contain special information.

Contents and general safety instructions
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Festo GDCA-CHB-C-N en 1508e English
Pictograms
Information
Highlights recommendations, tips and references to other
information sources.
Accessories
Highlights information regarding suitable accessories.
Environment
Highlights sections dealing with environmental aspects.
Text designations
Bullet points denote activities that can be carried out in
any order.
1. Figures indicate activities which must be carried out in the
sequence shown from top to bottom.
– Arrowheads indicate general lists.
– Menu commands of the software are framed in square
brackets, e. g. the command [System parameter] in the
[View] menu opens the
window for setting the parameters.
– For selections within tree structures, e.g. for setting the
system parameters in CheckKon, the paths are marked
with a square. You will therefore find e. g. in the path
System Operating modes the parameter  Lock
the Teach button = Off
– Inputs and outputs of the plug connectors are specified
with the pin number as follows:
Input pin 1 I/1
Output pin 2 O/2

Contents and general safety instructions
XFesto GDCA-CHB-C-N en 1508e English
– Plug connectors are represented as when viewed on the
device. This representation corresponds to the view of the
(cable) connections which are to be wired.

Contents and general safety instructions
XI
Festo GDCA-CHB-C-N en 1508e English
Information regarding this description
This description refers to the standard designs of the Check
box Compact type CHB-C-N with operating system version 3.5.
The version number is shown on the display in the stop status
(see chapter 2.5).
The options and parameters available depend on the operat
ing system, the type of connected Checkbox and on the fact
ory pre-settings. Customer-specific designs may differ in tech
nical data, parameter settings and method of functioning.
The pre-setting of the Checkbox can be modified if required
with the software packages CheckKon (function “Modify sys
tem”) or CheckOpti (see chapter 1.2).
Documentation on the Checkbox
Information on using the Checkbox can be found in the fol
lowing descriptions:
Documentation Table of contents
Description for checkbox CHB-C-N
– GDCA-CHB-C-N
Description of the function, commission
ing, operation and maintenance of the
Checkbox.
Descriptions for the software packages
– Software CheckKon P.SW-KON
– Software CheckOpti P.SW-OPTI
– Operation of the CheckKon software
– Operation of the CheckOpti software
Tab. 0/1: Documentation on the Checkbox

Contents and general safety instructions
XII Festo GDCA-CHB-C-N en 1508e English
Product specific terms and abbreviations
Term/abbreviation Significance
CHB-C-N A device of the type Checkbox Compact (without transporting device) for
identifying conveyed parts of a parts type.
Defective part An inspection part on which at least one feature lies outside the toler
ance.
Deviation The Checkbox assesses the feature of an inspection part which differs
most from the Teach data. The smaller the value of the inspection part
deviation, the more accurately the inspection part corresponds to the
sample parts.
Feature Characteristic features are ascertained from the contour data of the
sample and inspection parts by tools (configuration in CheckOpti).
These are e.g. length, height, etc.
Good part An inspection part on which all features lie within the tolerance.
Inspection parts All parts shown during the test procedure.
Orientation The parts to be tested by the Checkbox can be placed on the trans
porting device facing in different directions. During the Teach proced
ure you can define the orientations by showing the different direc
tions. Orientation 1 is the preferred orientation (nominal orientation).
RUN mode Operating mode of the Checkbox for automatic parts testing (preset
when starting the CHB-C-N). AUTO mode in earlier versions.
Sample parts Good parts which have been selected for the Teach procedure and
which possess all the features necessary for identifying the check
program.
SCTR value During the Teach procedure the SCTR value (scatter of characteristics)
shows the extent of the scatter of characteristics of the sample parts
in a check program. The SCTR value specifies the maximum value of
the scatter of characteristics for the current feature which differs to
the greatest extent.
(System) parameters Settings of the Checkbox (in some cases can only be set with the
CheckKon configuration software).
Teach data All of the characteristic values ascertained during the Teach proced
ure, each with min./max. limits and the average value.

Contents and general safety instructions
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Festo GDCA-CHB-C-N en 1508e English
Term/abbreviation Significance
Teach procedure During the Teach procedure, sample parts on the transporting device
are shown to the Checkbox and the features are scanned. This is also
referred to as “Teaching parts”.
Test data The test data is the data used for the test. These correspond to the
Teach data plus admitted tolerances.
Test procedure During the test procedure, inspection parts on the transporting device
are shown to the Checkbox and graded according to their features
with regard to orientation and observance of the tolerances. This is
also referred to as “Testing parts”.
TEACH mode Operating mode of the Checkbox in which the Teach procedure is car
ried out.
Test program Program with tools defined by the teach data of the sample parts
(configuration in CheckOpti).
Tolerance Factor in per cent related to the average values and which affects the
min./max. limits of all features.
Tab. 0/2: Terms and abbreviations

Contents and general safety instructions
XIV Festo GDCA-CHB-C-N en 1508e English

System overview
1-1Festo GDCA-CHB-C-N en 1508e English
System overview
Chapter 1

1. System overview
1-2 Festo GDCA-CHB-C-N en 1508e English
Contents
1. System overview 1-1...............................................
1.1 The Festo Checkbox 1-3.............................................
1.2 Software package 1-4...............................................
1.3 Function range 1-5.................................................
1.4 Operational principle 1-6............................................
1.5 Buffer zone 1-9....................................................

1. System overview
1-3
Festo GDCA-CHB-C-N en 1508e English
1.1 The Festo Checkbox
The Festo Checkbox ®enables the optical (contactless) posi
tioning and quality inspection of conveyed parts and it pre
cisely controls the actuators for sorting the inspected parts
and parts assigned to the result groups (tracking, ejection of
parts, etc.).

1. System overview
1-4 Festo GDCA-CHB-C-N en 1508e English
1.2 Software package
Various software packages are available for user-friendly
commissioning, optimizing and monitoring.
Software
package
Functions
CheckKon
Checkbox
configurator
– Displaying and evaluating the most recently
registered test part
– Displaying and logging of the parts contour
as well as the characteristics derived from
the contour
– Displaying the light intensity recognized by
the camera
– Displaying and printing out of the system
configuration
– Displaying and modifying the system para
meters
– Support in project planning, management
and documentation
CheckOpti
Checkbox
optimizer
– Convenient teaching of the sample parts
– Monitored checking of parts, displaying the
registered features
– Evaluation of the inspection of workpieces
with regard to reliability (evaluation)
– Graphic display of the test sequence
– Optimization of the inspection of work
pieces through manual adaptation of the
min./max. values of the Teach data or
through additional tools
– Support in project planning, management
and documentation
Festo Field Device
Tool (FFT)
– Loading a new operating system
– Changing network settings (IP address)
Tab. 1/1: Software package
The software package, operating system updates and current
product information on the Checkbox Compact can be found
on the Festo website at www.festo.com/sp.