Mitsubishi Electric MELSENSOR Vision Sensor VS20 Series User manual

Vision Sensor VS20
User's Manual
-VS20M-11F310
-VS20M-12F410
-VS20M-13F410
-VS20C-12F410
-VS20C-13F410
This product is designed and manufactured by Cognex Corporation.
*Note that the warranty and general specifications of this product
differ from that of programmable controller products.

1
PRECAUTIONS REGARDING WARRANTY AND
SPECIFICATIONS
This product is designed and manufactured by Cognex Corporation. Note that the warranty and general specifications of this
product differ from that of programmable controller products.
•Warranty
• General specifications
CE
This section describes a summary of precautions when bringing into CE conformance the machinery formed by using the
vision sensor.
Note that the descriptive content is material created based on regulation requirements and standards obtained by Mitsubishi
Electric Corporation. However, machinery manufactured in accordance with this content is not necessarily guaranteed to
conform with the above commands.
Final judgment regarding CE conformance or the method of conformance must be the judgment of the machinery
manufacturer itself.
To meet the CE compliant conditions, implement the following items.
• Significant amount of noise on the power source may cause malfunction. Use a regulated DC power supply with an
isolating transformer for the power supply. Additionally, install a noise filter (SNR-10-223 by COSEL or an equivalent
product) between the vision sensor and the regulated DC power supply.
Item Vision sensor Programmable controller product (Example: MELSEC iQ-R
series)
Free warranty period 18 months after delivery or 24 months
after manufacture
36 months after delivery or 42 months after manufacture
Repair period after discontinuation of
manufacture
7 years 7 years
Item Specifications Programmable controller product (Example: MELSEC iQ-R series)
Ambient operating
temperature
0 to 400 to 55(when a base unit other than an extended temperature range base unit is used)
0 to 60(when an extended temperature range base unit is used)
Ambient storage
temperature
-10 to 60-25 to 75
Maximum humidity Less than 95% RH, non-condensing 5 to 95% RH, non-condensing
Vibration resistance IEC 60068-2-6: A vibration of 10 G
(10 to 500 Hz at 100 m/with 15 mm
width) was applied to each X, Y, and
Z direction for 2 hours.
Compliant
with JIS B
3502 and IEC
61131-2
Frequency Constant
acceleration
Half
amplitude
Sweep count
Under
intermittent
vibration
5 to 8.4 Hz 3.5 mm 10 times each
in X, Y, and Z
directions
8.4 to 150
Hz
9.8 m/
Under
continuous
vibration
5 to 8.4 Hz 1.75 mm 
8.4 to 150
Hz
4.9 m/
Shock resistance IEC 60068-2-27: 1000 half
sinusoidal shocks with 11 G in 10 ms
were applied.
Compliant with JIS B 3502 and IEC 61131-2 (147m/, 3 times each in X, Y, and Z bidirections)
Operating
atmosphere
There is no danger of corrosive
gases, flammable gases, and strong
alkaline substances to adhere.
No corrosive gases, flammable gases, less conductive dust
Protective structure IP65 (when all connectors are
attached to cables or shielded by a
sealing cap)

Installation location Outside a control panel Inside a control panel

2
Precautions
Ground the FG terminal with the ground cable as short as possible (with the length of 30 cm or shorter).
• EMC application
• UL/cUL application
Item Vision sensor Programmable controller product (Example: MELSEC iQ-R
series)
EMC applicable standard EN61131-2 EN61131-2
Item Vision sensor Programmable controller product (Example: MELSEC iQ-R
series)
UL/cUL applicable standard UL60950-1
CSA22.2
UL508
CSA22.2

3
SAFETY PRECAUTIONS
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full attention to safety to handle
the product correctly.
The precautions given in this manual are concerned with this product only. For the safety precautions of the programmable
controller system, refer to the user's manual for the CPU module used.
In this manual, the safety precautions are classified into two levels: " WARNING" and " CAUTION".
Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to serious
consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future reference.
[Installation Precautions]
[Installation Precautions]
[Wiring Precautions]
WARNING
●Before touching the vision sensor, be sure to touch an electric conductor such as grounded metal to
discharge the static electricity from your body. Otherwise, damage or faulty operation of the vision
sensor may occur.
●Be sure to install an I/O connector module to the main module. If not installed, dust or water-proof
performance may not be obtained.
CAUTION
●IP protection rating is guaranteed only when all the connectors are connected with cables or sealed
with sealing caps.
●The cable is designed to connect with its key aligned with the keyway of the connector on the Vision
Sensor. Do not force the connections or damage may occur.
CAUTION
●Use only 24 V DC and observe the indicated polarity. Otherwise, fire or damage may result.
●The frame ground terminal of the I/O module and the shield ground of each connector (RS232 OUT
port and SENSOR port) are internally conducting. The system ground is designed on the condition
that a ground connection is provided. The ground potential may affect the vision sensor and
peripheral devices such as programmable controllers via cables. For safe operation, it is
recommended to connect all the ground connections securely.
WARNING Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.

4
[Startup and Maintenance Precautions]
PRECAUTIONS FOR USE
Observe the following precautions when installing and operating the vision sensor, to reduce the risk of injury or equipment
damage:
• This device requires the use of an LPS or NEC class 2 power supply.
• To reduce the risk of damage or malfunction due to over-voltage, line noise, electrostatic discharge (ESD), power surges, or
other irregularities in the power supply, route all cables away from high-voltage power sources.
• A vision sensor does not contain user-serviceable parts. Do not make electrical or mechanical modifications to a vision
sensor.
Any modification may void your warranty.
• Changes or modifications not expressly approved by the party responsible for regulatory compliance could void the user’s
authority to operate the equipment.
• If the bend radius or service loop is smaller than 10 times of the cable diameter, the cable may cause cable shielding
degradation, cable damage, or wear out in a short period. The bend radius must begin at least 152.4 mm from the
connector.
• This equipment is a Class A device. Using this equipment in a domestic environment may cause radio disturbance. In this
case, the user may be required to take appropriate measures.
• If there is concern about noise, set a noise filter (SNR-10-223, COSEL or an equivalent) between the vision sensor and the
stabilized DC power supply.
• To maintain the safety of the system against unauthorized access from external devices via the network, take appropriate
measures.
To maintain the safety of the system against unauthorized access from external devices via the Internet, take measures
such as installing a firewall.
CAUTION
●Do not clean the vision sensor with highly irritating or corrosive solvent such as caustic alkali solution,
methyl ethyl ketone (MEK), and gasoline. Doing so may cause a fault.

5
CONDITIONS OF USE FOR THE PRODUCT
(1) This vision sensor shall be used in conditions;
i) where any problem, fault or failure occurring in the vision sensor, if any, shall not lead to any major or serious
accident; and
ii) where the backup and fail-safe function are systematically or automatically provided outside of the vision sensor for
the case of any problem, fault or failure occurring in the vision sensor.
(2) This vision sensor has been designed and manufactured for the purpose of being used in general industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT LIMITED TO ANY AND ALL
RESPONSIBILITY OR LIABILITY BASED ON CONTRACT, WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY
INJURY OR DEATH TO PERSONS OR LOSS OR DAMAGE TO PROPERTY CAUSED BY THIS VISION SENSOR
THAT ARE OPERATED OR USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS,
PRECAUTIONS, OR WARNING CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY MANUALS,
TECHNICAL BULLETINS AND GUIDELINES FOR the VISION SENSOR.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the vision sensor in;
• Nuclear Power Plants and any other power plants operated by Power companies, and/or any other cases in which the
public could be affected if any problem or fault occurs in the vision sensor.
• Railway companies or Public service purposes, and/or any other cases in which establishment of a special quality
assurance system is required by the Purchaser or End User.
• Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as Elevator and Escalator,
Incineration and Fuel devices, Vehicles, Manned transportation, Equipment for Recreation and Amusement, and
Safety devices, handling of Nuclear or Hazardous Materials or Chemicals, Mining and Drilling, and/or other
applications where there is a significant risk of injury to the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the vision sensor in one or
more of the Prohibited Applications, provided that the usage of the vision sensor is limited only for the specific
applications agreed to by Mitsubishi and provided further that no special quality assurance or fail-safe, redundant or
other safety features which exceed the general specifications of the vision sensors are required. For details, please
contact the Mitsubishi representative in your region.

6
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric FA sensor, MELSENSOR.
This manual describes the specifications, functions, system configuration, system construction, installation, maintenance and
inspection, and troubleshooting to use the vision sensors listed below.
Before using the product, please read this manual and relevant manuals carefully, and develop familiarity with the functions
and performance of the MELSENSOR vision sensor to handle the product correctly.
Please make sure that the end users read this manual.
Available vision sensors
Product name Model
VS20 VS20M-11F310, VS20M-12F410, VS20M-13F410, VS20C-12F410, VS20C-13F410

7
CONTENTS
CONTENTS
PRECAUTIONS REGARDING WARRANTY AND SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PRECAUTIONS FOR USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
CHAPTER 1 PRODUCT OVERVIEW 11
CHAPTER 2 PART NAMES 13
CHAPTER 3 SPECIFICATIONS 15
3.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Working distance and field of view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3 I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Image acquisition trigger input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
High-speed outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
High-speed output wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Ethernet cable specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Breakout cable specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
I/O module cable specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
CHAPTER 4 FUNCTION LIST 24
CHAPTER 5 SYSTEM CONFIGURATION 26
5.1 Ethernet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.2 I/O Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3 I/O Connection Using an I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.4 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5 Applicable System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
When using CC-Link IE Field Network Basic or iQ Sensor Solution functions . . . . . . . . . . . . . . . . . . . . . . . . . . 30
When not using CC-Link IE Field Network Basic or iQ Sensor Solution functions . . . . . . . . . . . . . . . . . . . . . . . 30
5.6 Hardware Components and Optional Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Items to prepare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Items to prepare as needed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
CHAPTER 6 SYSTEM CONSTRUCTION 33
6.1 Installation Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.2 Change in Sensor Configuration (Straight to Right Angle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3 Installation of a Vision Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Installation in straight configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Installation in right-angle configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4 Connection of an Ethernet Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.5 Connection of a Breakout Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Connection example of a breakout cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.6 Focus Position Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8
6.7 Lens Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.8 Installation of a Lens Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.9 Replacement of an LED Ring Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.10 Connection of an I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Specifications of CIO-1400 I/O modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Connection procedure of a CIO-1400 I/O module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Connection example of a CIO-1400 I/O module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
CHAPTER 7 INSTALLATION 51
7.1 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.2 Registration of a Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
CHAPTER 8 MAINTENANCE AND INSPECTION 53
8.1 Cleaning a Vision Sensor Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.2 Cleaning an Image Sensor Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.3 Cleaning a Lens Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
CHAPTER 9 TROUBLESHOOTING 55
APPENDIX 57
Appendix 1 External Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62