Omron MC4700, MCF4700, MSF4700, MCJ4700, MS4700 Installation And Operating Manual

4700 Series

Installation and Operating Manual

for MC4700, MCF4700, MCJ4700, MS4700 & MSF4700 Series

Original Instructions

. . . . .

O M RO N ScientificTechnologiesInc.

Manufacturing and Sales Office

6550 Dumbarton Circle

Fremont CA 94555 USA

1 / 888 / 510-4357

Tel: 510/608-3400

Fax: 510/744-1442

www.sti.com

NOTE:

This manual provides information for MC4700, MCF4700, MCJ4700, MS4700 and the MSF4700 transmitters and receivers, for use with both the LCM metal enclosure as well as the DIN box controller. Where information is common the term “4700 system” is used. Where information is specific to a certain version the exact model number (example: safe mounting distance calculation) is provided. The specifications and detailed information of the MCF4700, MCJ4700, MS4700 and the MSF4700 information are located at the back of the manual.

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

4700 Series Safety Light Curtain

Table of Contents

Section 1 -- Important Safety Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9

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Section 2 -- Significant Features

2.1 Standard Features

2.2 Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10

Section 3 -- System Access, Components and Indicators

3.1 Access to Configuration Switches

3.1.1 LCM DIN Controller

3.1.2 LCM Metal Chassis Controller

3.2 Location of the components a

Section 4 -- System Operation

4.1 Operating States

4.1.1 Machine Run

4.1.2 Machine Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 16

4.1.3 Interlock

4.1.4 Alarm

4.2 Operating Modes

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nd indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13

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4.2.1 Automatic Start

4.2.2 Start Interlock

4.2.3 Start/Restart Interlock

4.3 Operating Mode Selection

4.4 Start Switch Type Selection

Section 5 -- Detection Options

5.1 Exact Channel Select (ECS)

5.2 Multi Channel Select (MCS)

5.3 Floating Blanking

5.4 Using Exact Channel Select with Floating Blanking

5.4.1 The Effect of Exact Channel

Resolution

5.5 Activating and Programming Exact Channel Se

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

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Select and Floating Blanking on Minimum Object

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lect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23

Original Instructions

5.6 MCS Programing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23

5.7 Activating Floating Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 24

5.8 Additional Guarding When Using Exact Cha

Section 6 -- Diagnostic and Test Features

6.1. Diagnostic Display

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6.2 Individual Beam Indicators

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6.3 Machine Primary Control Element (MPCE) Monitoring

6.3.1 Activating and Deactivating MPCE Monitoring

6.3.2 Activating and Deactivating MPCE Monitoring on the Metal Chassis Controller-

Relay Output Version

6.4. Status Indicator Lights

6.4.1 Safety Output status

6.4.2 Interlock Status

6.4.3 Alarm Status

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6.4.4 Exact Channel Select and Floating Blanking Status . . . . . . . . . . . . . . . . . . . . page 26

Section 7 -- Outputs

7.1 Safety Outputs

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nnel Select . . . . . . . . . . . . . . . . . . . . . . page 24

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7.1.1 Din Controller and Metal Chassis So

7.2.2 metal chassis Controller -

7.2. Auxiliary Outputs

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7.2.1 DIN Controller and Metal Chassis Solid State Version . . . . . . . . . . . . . . . . . . page 27

7.2.2 metal chassis Controller -

7.2.3 Auxiliary Output Operating Modes

Section 8 -- Safe Mounting Distance

8.1 US Safe Distance Formulas

8.2 European Safety Distance Formulas

8.2.1 Safety Distance Formula for Systems with a Minimum Object Resolution of 40 mm or

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Less

8.2.2 Safety Distance Formula for Systems with a Minimum Object Resolution Greater Than

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40 mm

8.2.3 Factors Affecting The Safety Distance Formula

lid State Version. . . . . . . . . . . . . . . . . . . page 27

Relay Output Version . . . . . . . . . . . . . . . . . . . . . . . page 27

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OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

Section 9 -- Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31

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9.1 Reflective Surface Interfer

ence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31

9.2. Connecting Transmitter and Receiver to Controller

9.2.1 Cable Assemblies

9.2.2 Cable Connections

9.3 General Considerations

9.3.1 Additional Guarding

9.3.2 Installation of Multiple System

9.3.3 Detection Zone

9.3.4 Marking Minimum Object Re

9.3.5 Alignment

9.3.6 Input Power Requireme

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solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 36

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nts/Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 36

9.3.7 Special Requirements for Perimeter Guarding

9.3.8 Presence Sensing Device Initiation

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Section 10 -- Connecting To The Machine Control Circuit

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10.1 Din Controller

10.1.1 Connecting to a S

10.1.2 Connecting Via an RM-1 Module

10.1.3 Connecting Via T

10.2 Metal Chassis Controllers

10.2.1 Connecting Via

10.2.2 Connecting Via

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afety Monitoring Device . . . . . . . . . . . . . . . . . . . . . . . . . . page 38

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wo Force-Guided Relays. . . . . . . . . . . . . . . . . . . . . . . . . . . page 40

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Two Normally Open Relay Safety Outputs . . . . . . . . . . . . . . page 41

One Normally Open One Normally Closed Safety Relay Outputs . . .

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10.2.3 Connecting Solid State Safety Outputs

10.2.4 Connecting Vi

a a Safety Monitoring Device . . . . . . . . . . . . . . . . . . . . . . . . . page 44

Section 11 -- Checkout and Test Procedures

11.1 Checkout Procedur

11.2 Test Procedure

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to Two Force-Guided Relays . . . . . . page 43

11.3 Using the Test Object. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 45

page 42

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

11.4 Test Considerations When Using Exact Channel Select or Floating Blanking. . . . . page 46

Section 12 -- Troubleshooting

Section 13 -- Cleaning

Section 14 -- Specifications and Additional Information

14.1 System Specifications

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14.2 MicroSafe MC4700 Series Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 49

14.2.1 MC4700 Series Dimensio

14.2.2 MC4700 Spare Parts

14.3 MicroSafe Flexible MCF4700 Series

14.3.1 MCF4700 Series Dimensions

14.3.2 MCF4700 Spare Parts

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14.4 MicroSafe Jointed MCJ4700 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 65

14.4.1 MCJ4700 Segment Dimensions

14.4.2 90° Jointed MicroSafe MCJ47

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00 Dimensions . . . . . . . . . . . . . . . . . . . . . . page 56

14.4.3 Sensor Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 56

14.4.4 Installation

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14.4.5 Minimum Object Resolution

14.4.6 MCJ4700 Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 56

14.5 MiniSafe MS4700 Series

14.5.1 MS4700 Dimensions

14.5.2 MS4700 Spare Parts

14.6 MiniSafe Flexible MsF4700 Series

14.6.1 MSF4700 Series Di

14.6.2 MSF4700 Spare

14.7 DIN and LCM NEMA Controllers

Section 15 -- Glossary

15.1 Glossary Definitions

Section 16 -- Others

16.1 Warranty

16.2 Patents

16.3 Trademarks

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at Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 56

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mensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 78

Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 79

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16.4 Repairs

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

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Original Instructions

16.5 Documentation Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 100

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Appendix A —Checkout Procedur

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A.1 Checkout Procedure Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 90

Appendix B —Test Procedur

B.1 Test Procedure Log

Appendix C —DeviceNet Operating Instructions

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C.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 92

C.2 Features

C.2.1 System identification

C.2.2 System status

C.2.3 System Settings

C.2.4 Diagnostic Information

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C.3 Basic DeviceNet Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 95

C.4 LCM-2XX series internal D-Net Wire Colors and Pin Outs

C.4.1 Screw Connectors for LCM-2XX series D-Net interface module

C.5 DeviceNet Configuration Switches

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C.5.1 Switch Function Selecti

C.6 Quick Disconnect Option

on Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 98

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Appendix D —Declaration of Comformity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 101

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

Table of Figures

Figure 3-1 Accessing the Configuration Switches

Figure 3-2 Accessing the Configuration Switches on

Figure 3-3 4700 Transm

Figure 3-4 DIN Contr

itter and Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13

oller Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14

on the LCM DIN Controller . . . . . . . . . . . . page 11

the LCM-Metal Chassis Controller . . . . page 12

Figure 3-5 Metal Chassis Controller Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15

Figure 4-1 Functional Flow Diagram

Figure 5-1 Connection Re

commendations for LCM Metal Enclosure. . . . . . . . . . . . . . . . . . . . page 20

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 17

Figure 5-2 Connection Recommendations for LCM DIN Box . . . . . . . . . . . . . . . . . . . . . . . . . . page 20

Figure 5-3 Adding Har

Figure 8-1 Safe Mounting Distance

d guarding to Light Curtain when Using Channel Select . . . . . . . . . . . page 23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 28

Figure 9-1 Correct Mounting Example with Proper Alignment. . . . . . . . . . . . . . . . . . . . . . . . . page 31

Figure 9-2 Unsafe Mounting Examp

Figure 9-3 Unsafe Mounting Examp

le . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31

Figure 9-4 Worst Case Alignment Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 32

Figure 9-5 Minimum Distance from

Figure 9-6 Correct Light Curta

a Reflective Surface as a Function of Range . . . . . . . . . . page 32

in Installation Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 34

Figure 9-7 Multiple Light Curtain Installation Configurations. . . . . . . . . . . . . . . . . . . . . . . . . page 35

Figure 9-8 Mounting Orientation

Figure 10-1 Connecting to a Safe

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 35

ty Monitoring Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 38

Figure 10-2 Connecting via an RM-1 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 39

Figure 10-3 Connecting Vi

Figure 10-4 Connecting with Tw

Figure 10-5 Connecting with One

Figure 10-6 Connecting with Tw

Figure 10-7 Connecting with Safety

Figure 11-1 Test Object

Figure 14-1 MC4700 Series Dimensional D

Figure 14-2 MicroSafe Flex

Figure 14-3 MicroSafe Jointed MCJ4700

Figure 14-4 90° Jointed Micr

Figure 14-5 Assembly Instructions

Figure 14-6 MS4700 Mechanical Drawin

a Two Force-guided Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40

o Normally Open Safety Outputs . . . . . . . . . . . . . . . . . . . . . . page 41

Normally Open One Normally Closed Safety Outputs . . . . page 42

o Force Guided Relay Outputs. . . . . . . . . . . . . . . . . . . . . . . . page 43

Monitoring Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 44

Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 45

rawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 55

ible MCF4700 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 58

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 65

oSafe MCJ4700 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 66

Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 67

g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 71

Figure 14-7 MiniSafe Flexible MSF4700

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 77

Original Instructions

Figure 14-8 DIN Controller Dimension Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 84

. . . . .

Figure 14-9 LCM Nema Metal Chassis Contro

ller Dimension Drawing . . . . . . . . . . . . . . . . . page 85

Figure 15-1 DeviceNet Install Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 99

Figure 15-2 DevieNet Wi

Figure C-1 Basic Devi

Figure C-2 Pin Outs for

ring with Optional M12 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . page 99

ceNet configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 95

Internal Screw Connectors used internally in the LCM-2XX . . . . . . . page 96

Figure C-3 Pin Outs for Micro_Style Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 96

Figure C-4 Pin Outs for

Phoenix-style connectors used in the STI MC4700, LCM-2 interface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 97

Figure C-5 LCM-2 Power/DeviceNet board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 97

Table of Tables

Table 3-1 System Component Identification for the 4700 Transmitter and Receiver

Table 3-2 System Component Identification for the LCM-1, LCM-2 and LCM-3 Controllers

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 4-1 Operating Mode Switch Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18

. . . . . . . . page 13

. . . . . . . . .

page 14

Table 5-1 System Response to Exact Channel Select

Table 5-3 System Response to Floating Blanking

Table 5-4 Icon Key for T

Table 5-5 Sample S and D

Table 5-6 Sample S and D

Table 5-7 Sample S and D

Table 5-8 Sample S and D

ables 5-1 and 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21

Factors for 12 mm Resolution Systems. . . . . . . . . . . . . . . . . . . . . page 22

Factors for 14 mm resolution Systems . . . . . . . . . . . . . . . . . . . . . page 22

Factors for 20mm resolution Systems. . . . . . . . . . . . . . . . . . . . . . page 22

Factors for 30 mm resolution Systems . . . . . . . . . . . . . . . . . . . . . page 23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 19

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21

Table 5-9 Switch Settings, Exact Channel Select and Floating Blanking

Table 6-1 Operational Display Code Summary

Table 6-2 MPCE Switch Setting

s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 26

Table 7-1 Auxiliary Output Operating Mode S

Table 9-1 Color Code/Terminal Number Cr

Table 9-2 Color Code/Terminal Number Cr

Table 12-1 Operational Codes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 46

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 25

witch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . page 28

oss Reference for DIN Controllers . . . . . . . . . . . . page 32

oss Reference Metal Chassis Controllers . . . . . . . page 32

. . . . . . . . . . . . . . . . . page 24

Table 12-2 DIP Switch Fault Codes

Table 12-3 Safety Output (OSSD) Faults

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 47

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 47

Original Instructions

Table 12-4 MPCE Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 47

Table 12-5 Controller

Table 14-1 Response T

Table 14-2 Response T

Table 14-3 Response

Table 14-4 12mm transm

Table 14-5 14mm,

Table 14-6 MC4700-12

Table 14-7 MC4700-14

Table 14-8 MC4700-20

Table 14-9 MC4700-30

Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 48

ime for 12 mm MC4700 and MS4700 . . . . . . . . . . . . . . . . . . . . . . . . . . page 52

ime for 14 mm and 20 mm MC4700 and MS4700 . . . . . . . . . . . . . . . . . page 52

Times for 30 mm MC4700 and MS4700 systems. . . . . . . . . . . . . . . . . . . page 53

itter and Receiver Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 55

20 mm and 30 mmTransmitter and Receiver Lengths . . . . . . . . . . . . . . . . . page 55

Spare Transmitter and Receiver Model Number . . . . . . . . . . . . . . . . . page 56

Spare Transmitter and Receiver Model Number . . . . . . . . . . . . . . . . . page 57

Table 14-10 MCF4700-12 Dimensions First &

Table 14-11 MCF4700-12 Dimensions L

Table 14-12 MCF4700-14, MCF4700-20

Table 14-13 MCF4700-14, MCF4700-20

ast Segment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 59

and MCF4700-30 First and Middle Segment . . . . . page 59

and MCF4700-30 Last Segment . . . . . . . . . . . . . . . page 60

Middle Segment . . . . . . . . . . . . . . . . . . . . . . . page 59

Table 14-14 Transmitter

Table 14-15 MCJ470-12 Dimensions

and Receiver Segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 60

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 68

Table 14-16 MCJ4700 Joint Resolution (Resolution at the

Table 14-17 Transmitter

Table 14-18 MS4700-12 Dimensions

Table 14-19 MS4700-14 & MS4700-20

Table 14-20 MS4700-30 Dimensions

Table 14-21 Transmitter

Table C-1 Specifications fo

Table C-2 4700 Status Information

Table C-3 I/O Data for Change of S

Table C-4 I/O Data

Table C-5 Configuration Switches for Dev

and Receiver Segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 68

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 71

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 72

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 72

and Receiver Segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 73

r 4700 System Controller with DeviceNet . . . . . . . . . . . . . . . . . . . page 93

Sent in Response to a poll command . . . . . . . . . . . . . . . . . page 94

tate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 94

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 94

ice-Net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 98

Corner) . . . . . . . . . . . . . . . . . . . . . page 68

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

. . . . .

▲

1 I

MPORTANT

WARNING! Read and understand this section prior to installing a 4700 system.

A 4700 system is a general purpose presence sensing device designed to guard personnel working around moving machinery.

Whether a specific machine application and light curtain installation complies with safety regulations depends on items are the responsibility of the purchaser, installer and employer.

The employer is responsible for the selection and tra maintain the machine and its safeguarding systems. A 4700 system should only be installed, verified and maintained by a

possession of a recognized degree or certificate of professional training, or who, by extensive knowledge, training or experience, has successfully demonstrated the ability to solve problems relating to the subject matter and work.” (ANSI B30.2-1983)

To use a 4700 series safety light curtain the following requirements must be met:

— The guarded machine a press with a full-revolution clutch.

— The guarded machine must not present a hazard from flying parts.

AFETY

the proper application, installation, maintenance and operation of the light curtain. These

ARNINGS

ining of personnel to properly install, operate,

qualified person. A qualified person is defined as “a person or persons who, by

must be able to stop anywhere in its cycle. Do not use a safety light curtain on

and

— The guarded machine must have a consistent stopp

— Severe smoke, particulate matter and corrosives may degrade the ef Do not use a 4700 system in this type of environment.

— All applicable governmental and local rules, codes, and regulations must be satisfied. This is the e

mployer’s responsibility.

— All safety-related machine control elements must be designed so that a alarm in the control logic or failure of the control circuit does not lead to

— Additional guarding may be required for access to dange system.

— Perform the OMRON STI test procedure at installation and after modification to the machine controls, tooling, dies or machine, or the 4700 series system.

— Perform only the test and repair procedures outlined in this manual.

— Follow all procedures in this manual for proper operation of the 4700 series system.

The enforcement of these requirements is beyond the control of OMRON STI. The employer has the sole re

sponsibility to follow the preceding requirements

requirements specific to his machinery.

WARNING! Despite inherent safe design measures, safeguarding and complementary

protective measures adopted by the user, residual risk m

risks are strictly under the control of the end user and may include severe injury or death.

a failure to danger.

ing time and adequate control m

ficiency of a safety light curtain.

rous areas

and any other procedures, conditions and

ay remain in any installation. Potential

not covered by the 4700 series

maintenance, adjustment, repair or

echanisms.

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

2 S

IGNIFICANT

EATURES

2.1 STANDARD FEATURES

Individual Beam Indicators

External Device Monitoring (MPCE Monitoring)

Automatic Start Mode

Start Interlock Mode

Start/Restart Interlock Mode

Adjustable Mounting Brackets

Floating Blanking

Exact Channel Select

Two Safety (PNP) Outputs

Auxiliary Output

Start Switch Input Selectable NO or NC

2.2 OPTIONAL FEATURES

Relay Safety Outputs (Metal Chassis Controllers only)

DeviceNet

Multi-Channel Select (Non-CE)

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

. . . . .

3 S I

NDICATORS

YSTEM

3.1 A CCESS TO CONFIGURATION SWITCHES

3.1.1 LCM DIN CONTROLLER

CCESS

, C

OMPONENTS

AND

Switches for configuring system features are located under the front cover of the controller. Access to these switches is gained by the following procedure:

1. Remove the four screws holding the cover in place (see Figure 3-1 for location).

2. Place the blade of a thin flat-blade screwdriver between the cover and the main controller housing a

nd gently lift the c

removed.

To replace the cover:

1. Correctly position one end and push down on the opposite end to snap it in place.

2. Replace the four screws to properly retain the cover.

over off. See Figure 3-1 for detail. The cover is not hinged and will be completely

Figure 3-1 Accessing the Configuration Switches on the LCM DIN Controller

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

STOP

RUN

START

INTERLOCK

FB/CS

W A R N I N G

Scientific Tec hnologies Inc, Fremont, CA 94555 U. S. A.

o test the light cur tain, use the appropr iate ST Isupplied test object, or proper ly siz ed opaque cyl indri cal object.

If yo u are using the Channel Select or F loating Blanki ng features and the object to be ignored does not completely prevent acc ess to the haz ardous ar ea, ei ther (1) use a mechanical guard or other means to block access or (2) increase the minimum safe distance and use a larger tes t object diameter as explained i n the Installation and Operating Manual.

1. Di sable the ma chine. Pow er on the l ight cur tain.

2. Ins pect the machine to ensure entry to the hazardous area is only through the light curtain sensing field. I f not, additional guardi ng, incl uding mechanical barriers may be required.

3. Veri fy that the mounting dis tance of the l ight curtain i s equal to or gr eater than the mini mum safe distance fr om the hazardous point. Ens ure the operator is not able to stand undetec ted between the li ght curtai n and the hazard.

4. Chec k f or exter nal dama ge to the li ght curtai n, the machine, el ectri cal cabl es and w iri ng.

5. Inter rupt the sensing fi eld with the

test

object t

o check the eff ectiveness of the light c urtain.

Move the test obj ect ins ide the peri meter ( along the top,

Do Not Remove Or Cover This Label

http://www.sti.com1/888/510-4357

STI Label P/N 28621-0010 re

EST PROCEDURE

sides and bottom) of the sensing field and up and down through the center of the sens ing fiel d. Veri fy that the Red indi cat or i s ON and the G ree n indi cator is OF F w hil e the test object is anywhere in the sensing field. watch for any unprotected acces s to the point of ha zard.

6. Star t the machine. Interr upt the sensing f ield with the test object. The machine shoul d stop immediately. Never insert the test object into the dangerous parts of the mac hine! Wi th the machine at rest, inter rupt the sensi ng fi eld w ith the test obj ect. that the machine wil l not s tart with the tes t object i n the sensing field.

7. Ensure the braking and machine stop systems are working properly in accordance with the machine manufacturer Õs requirements. I f the machine does no t stop fast enough, adjust the braking system or increase the distance fr om the light c urtain to the poi nt hazard.

8. If the saf ety dev ices or machi ne fai l any of these tests, do not run the mac hine. I mmediately lockout the machine to prevent i ts use and noti fy the su pervis or

9. If the Channel Select is reprogrammed or disabled, you must repeat thes e test procedur es.

10. C lose and l ock the li ght curta in contr enclosu re d oor, if appl i cabl e.

Diagnostic Codes: 00 Normal Operation 01 Normal Operation, waiting for Start signal 02 Normal Operation, Floating Blanking active 03 Normal Operation, Exact Channel Select active 04 Normal Operation, Exact Channel Select and

Floating Blanking active 20 G eneral DIP switch fault 21 Invalid switch setting 22 DIP switch settings changed during operation 23 Invalid Channel Select or MPCE switch settings

30 General Safety Output fault 40 G eneral MPCE fault 41 MPCE open before safety output (OSSD) activation 43 MPCE open when power is applied 50 Internal controller fault 51 Receiver fault 52 Transmitter fault 53 Transmitter and receiver length mismatch or transmitter

and receiver not connected

59 24 VDC power supply fault

Cla sp

PROGRAM

Opti ona l

Keyswitch

3.1.2 LCM METAL CHASSIS CONTROLLER

Switches for configuring system features are located inside the front cover of the controller. Access to these switches is gained by the unlocking the clasp on the right-hand side of the controller box.

The Clasp has provisions to accept a user-provided padlock. On

ly a qualified p erson should have

possession of the key to the padlock, or to the optional Program/Start keyswitch.

Figure 3-2 Accessing the Configuration Switches on the LCM-Metal Chassis Controller

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

3.2 L OCATION OF THE COMPONENTS AND INDICATORS

2. YEL

4. RED - STOP/BLOCKED

3. GRN - RUN/CLEAR

2. YEL - INTERLOCK

OR CHANNEL SELECT

1. AMBER - FLOATING BLANKING

1. AMBER

4. RED

3. GRN

INDICATORS

LED

RECEIVER

DETECTION ZONE

TRANSMITTER

MC4700

2. YEL

4. RED - STOP/BLOCKED

3. GRN - RUN/CLEAR

2. YEL - INTERLOCK

OR CHANNEL SELECT

1. AMBER - FLOATING BLANKING

1. AMBER

4. RED

3. GRN

INDICATORS

LED

RECEIVER

DETECTION ZONE

TRANSMITTER

MS4700

Refer to Figure 3-3, Figure 3-4 and Figure 3-5 for the location of the components and indicators listed below.

. . . . .

Table 3-1 System Component Identification

for the 4700 Transmitter and Receiver

Chart #

1 RECEIVER

2 Individual Beam Indicators (one for each beam) – Red

3 Channel Select or Floating Blanking Indicator – Amber

4 Interlock or Fault Indicator – Yellow

5 Machine Stop Indicator – Red

6 Machine Run Indicator – Green

7 TRANSMITTER

8 Detection Zone

Figure 3-3 4700 Transmitter and Receiver

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Original Instructions

NOTE : F or DeviceNet Option, LCM-2 Series, Termina ls 13 to 17 are indica ted below.

131415

DeviceNet

CAN +

DATA H

1617

DATA L

CAN VÐ

LCM-1 Series

Fremont, CA, US A Tel: 510/608-3400, Fax: 510/744-1442 www.sti. com

Scientific Technologies Inc.

OSSD 1

OSSD

RETURN

MPCE

0 VDC

MPCE

RETURN

BLUE

AUX1

OUT

ORANGE

OSSD 2

AUX2

OUT

BLACK

PINK

GRAY

VIOLET

TAN

YELLOW

RED

131415 123457

6910

Xmtr

24232221201918 34333231302827 292625

Rcvr

Do not defeat or bypass. Severe injury to

WARNING SAFETY DE VICE

personnel could result.

START

RETURN

START

+24 VDC

WHITE

BROWN

Xmtr/RcvrOutput

SHIELD

RS232 MPCE Remote

Power

Not Used

PROG RET

PROGRAM

Not Used

FB/CS

Interlock

Stop

Run

Not Used

DATA

1617

Not Used

Cha nnel S elect

ECS 1

PROGRAM

ECS Return

ECS 2

NOTE : For Multi Channel S ele ct Option, LCM-3 Series, Terminals 4 to 7 are indica ted on below.

CS Prog

Table 3-2

System Component Identification for the LCM-1, LCM-2 and LCM-3 Controllers

Chart #

4 EXact Channel Select 1 beam

5 EXact Channel Select 2 beams

6 EXact Channel Select 3 beams

7 EXact Channel Select Return

9 Channel Selector Floating Blanking Indicator - Amber

10 Interlock or Alarm Indicator - Yellow

11 Machine Stop Indicator - Red

12 Machine Run Indicator - Green

13 Diagnostic Code Display

14 Switch A

15 Program Button

16 Switch B

17 Removable Terminal Blocks for input and output connections

18 DeviceNet status indicators (optional)

19 Start Switch Type Jumper

20 Relay Board (metal chassis only)

21 Power In (metal chassis only)

22 MPCE Monitoring (metal chassis only)

23 Multi-channel Select terminals

24 Optional Keyswitch

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA

Figure 3-4 DIN Controller Components

Original Instructions

Tel: 1/888/510-4357 in USA and Canada

1 2 3451 2 3 456 7 8

MPCE MON

OFF

JMP2

BOARD

DEVICENET

OPTIONAL

-Note: Shown with optional Relay Board.

R44

R45

RV1

MCS

TB5

TB6

TB7

AUX

0SSD2 AUX

TB3

TB1

TB2

PS1

0SSD1

KEYSWI TCH

N.O.

N.C.

PROGRAM

START

SWA

SWB

STOP

RU N

RUN

STA R T

INTERLOC K

FB/C S

W A R N I N G

Scientific Technologies I nc, Fremont, CA 94555 U. S. A.

o test the light curtain, use the appropriate S TI supplied test object, or properly sized opaque cylindrical object.

If y ou are using the C hannel Select or Floating Blanki ng features and the object to be ignored does not completely prevent access to the hazardous area, either (1) use a mechanical guard or other means to block access or (2) increase the minimum safe distance and use a larger test object diameter as explained in the In

stallation and Operating Manual.

1. Disable the machine. Power on the light curtain.

2. Inspect the machine to ensure entry to the hazardous area is only through the light curtain sensing field. If not, additional guarding, including mechanical barriers may be required.

3. Verify that the mounting distance of the light curtain is equal to or greater than the mini mum safe distance from the hazardous point. E nsure the operator is not able to stand un

detected between the light curtain

and the hazard.

4. Check for external damage to the light curtain, the machine, electrical cables and wiri ng.

5. Interrupt the sensing f ield wi th the

test

object t

o check the eff ectiveness of the light curtain.

Move the test object inside the perimeter (along the top,

Do Not Remove Or Cover This Label

http://www.sti.com1/ 888/ 510-4357

ST I L abel P /N 28621- 0010 re

EST

RO C EDU RE

sides and bottom) of the sensing field and up and down through the center of the sensing fi eld. V erify that the Red indicator is ON and the Green indicator is OFF while the test object i s anywhere in the sensing field. watch for any unprotected access to the point of hazard.

6. Start the machine. Interrupt the sensing field with the test o bject. T he machi ne s hould stop immediatel y. N ever ins ert the tes

t object into the dangerous parts of the machine! With the machine at rest, interrupt the sensing field with the test object. that the machine will not start with the test object in the sensing field.

7. E nsure the braking and machine stop systems are working properly in accordance with the machine manufacturerÕs r equirements. I f the machine does not stop fast enough, adjust the braking system or i ncrease the distance from the light curtain to the

point hazard.

8. If the safety devices or machine fail any of these tests, do not run the machine. I mmediately lockout the machine to prevent its use and notif y the supervisor

9. If the C hannel S elect is reprogrammed or disabled, you must repeat these test procedures.

10. Close and lock the light curta in contr enclosure door, if applicable.

Dia g no sti c C od es : 00 Normal O pera tion 01 Normal O pera tion, waiting for S tart signal 02 Normal Opera

tion, Floating Blanking a ctive 03 Normal O pera tion, Exact C hannel Select active 04 Normal O pera tion, Exact C hannel Select and

Floating Blanking active 20 General DIP switch fault 21 Invalid switch setting 22 DIP switch settings changed during operation 23 Invalid Channel Select or MPC E switch settings

30 General Safety O utput fa ult 40 General MPCE fault 41 MPCE open before safety output (OSSD) activation 43 MPCE open when power is applied 5

0 Internal controller fault 51 Receiver fault 52 Transmitter fault 53 Transmitter and receiver length mismatch or transmitter

and receiver not connected

59 24 VDC power supply fa ult

Inside Front Lid of the metal chassis controller

TB4

TB1

Shown with DC Solid State Configuration Note: For Solid State Configuration, JMP2 and PS1 are not available.

PR O G RA M

PROG

START

MPCE

. . . . .

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Figure 3-5 Metal Chassis Controller Components

Original Instructions

☛☛

4 S

YSTEM

PERATION

The 4700 system is a microprocessor-controlled, infrared transmitted-beam safety light curtain. The system consists of a receiver assembly and a transmitter assembly. Quick disconnect cables link the controller to the transmitter and receiver.

The safety light curtain is often used where personnel protection is include mechanical power presses, robotic work cells, filter presses, injection molders, food processing equipment and automated assembly equipment.

required. Typical applic

4.1 OPERATING STATES

The operating condition of a 4700 system is described in terms of states. The following operating states exist for the 4700 system.

4.1.1 MACHINE RUN

The two system safety outputs are in the ON state, the green machine run indicator is lit, and the auxiliary output is in a state consistent with its configuration. See machine is allowed to operate. Pressing and releasing the start button

4.1.2 MACHINE STOP

The two system safety outputs are in the OFF state, the red machine stop indicator is lit, and the auxiliary output is in a state consistent with its configuration. See section protected machine is not allowed to operate. Press and releasing the start switch has no effect.

Section 7 on page 27. The protected

has no effect.

Section 7 on page 27. The

ations

4.1.3 INTERLOCK

The two system safety outputs are in the OFF state, the red machine stop indicator and yellow interlock indicator are lit. The auxiliary output is in a state consistent with its configuration. See

Section 7 on page 27. The interlock state does not allow the protected machine to operate until the

detection zone is clear of obstructions and the start button is pressed and released.

4.1.4 ALARM

The two system safety outputs are in the OFF state, the red machine stop indicator is lit, the yellow interlock indicator is flashing, and the auxiliary output is in the OFF state. The alarm state does not allow the protected machine to operate. The primary difference between alarm and interlock is that the 4700 system will remain in the alarm state until power is recycled or the start switch is pressed and released and the system has run a self-test.

4.2 OPERATING MODES

System operating modes determine the start-up and operating behavior of the 4700 system. Operating mode definitions rely on the operating states presented above. Operating mode selection is performed via configuration switches under the front cover of the controller.

NOTE! If internal faults are detected by the 4700 system during power-up or operation, it will enter

the alarm state with its safety outputs in the OFF state.

4.2.1 AUTOMATIC START

The 4700 system will power-up with its safety outputs OFF, and perform system initialization and self tests. The 4700 system will enter the machine run state if no obstructions are present in the detection zone. In this state, when an object is sensed entering the detection zone, the 4700 system will change

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Original Instructions

from machine run to machine stop and remain in this state until the obstruction is removed. Once the

Power-Up

Power-On Self-Test

Failure

Mach ine S top

Start

Pressed &

Released

Fault

Failure

Beam

Cleared

Mach ine ru n

Failure

Beam

blocked

Start/

Restart

Interlock

Failure

Beam

Blocked

Start

Pressed &

Released

Yes

YesYes

Yes

detection zone is clear, the 4700 system will automatically change from machine stop to machine run.

4.2.2 START INTERLOCK

The 4700 system will power-up with its safety outputs OFF and perform system initialization and selftests. If no obstructions are detected in the protected zone, (or an exact channel select pattern satisfied), the 4700 system enters the interlock state. To enter the machine run state, the detection zone must be clear (or an exact channel select pattern satisfied), and then the operator must press and release the start switch. In the machine run state, when an object is sensed entering the detection zone the 4700 system will change from machine run to machine stop. Once the detection zone is clear, the 4700 system will automatically change from machine stop to machine run.

4.2.3 START/RESTART INTERLOCK

The 4700 system will power-up with its safety outputs OFF, and, if no faults are detected, enter the interlock state. To enter the machine run state, the detection zone must be clear (or an exact channel select pattern satisfied), and then the operator must press and release the start switch. In the machine run state, when an object is sensed entering the detection zone the 4700 will change from machine run to interlock. The 4700 system will remain in the interlock state even after the obstruction is removed from the detection zone. To enter the machine run state, the operator must press and release the start switch. If any obstruction is present in the detection zone when the start switch is pressed and released, the 4700 will remain in the interlock state.

. . . . .

NOTE! The definitions above mention a start switch. See Section 10–“Connecting to the Machine

Control Circuit” for wiring of the start switch.

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Figure 4-1 Functional Flow Diagram

Original Instructions

▲

4.3 OPERATING MODE SELECTION

Operating mode is selected by setting positions 1 and 2 of Switches A and B, located under the controller cover. Refer to Table 4-1. Any mismatch between the settings of Switch A and B will result in an alarm condition. In addition, if the configuration switch settings change will enter the alarm state with the safety outputs off.

Warning! Disconnect power before accessing the controller assembly.

Table 4-1 Operating Mode Switch Settings

SWITCH A SWITCH B

OPERATING MODE 1 2 1 2

Automatic Start (default setting) CLOSED/ON CLOSED/ON CLOSED/ON CLOSED/ON

Start interlock OPEN/OFF CLOSED/ON OPEN/OFF CLOSED/ON

Start/Restart interlock OPEN/OFF OPEN/OFF OPEN/OFF OPEN/OFF

Not Allowed CLOSED/ON OPEN/OFF CLOSED/ON OPEN/OFF

while the system is on, it

4.4 START SWITCH TYPE SELECTION

The type of Start switch (Normally Open or Normally Closed) used by the 4700 system is selectable by a jumper located under the controller cover. Refer to Figure 3-4 DIN Controller Figure 3-5 Metal Chassis Controller Components. Placin selects a Normally Closed Start Switch. Placing the jumper between 2 and 3 selects a Normally Open Start switch.

g the jumper between Pins 1 and 2 of JMP 1

Components and

type of Start

or Floating Blanking, to avoid unexpected areas where the

selected and used, (i.e. jump

to personnel. Exact Channel

Additional Guarding When Using Exact Channel

m controller should be inst

prevent access to the hazardous

gramming may be inadvertently

er between Pins 1

alled in an

increase.

Original Instructions

Note: If there is a mismatch between the and 2 and Normally Open Start Switch used) the switch must be pressed and released twice before the system will enter a Run state.

5 D

ETECTION

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PTIONS

Warning! Use of Exact Channel Select and/or Floating Blanking will make the 4700 system less sensitive to

objects in the detection zone. Improper use of either can result in severe injury

Select may require a hard barrier guard (see Section 5.8

Select

), Exact Channel Select or Floating Blanking requires an increase in the safety distance. Read the

following section carefully.

- To prevent unauthorized modification of the detection zone. The syste enclosure with supervisor-controlled access.

- If the object to be ignored by the Channel Selected beams does not completely area, then either use a hard guard or other means to block access or increase the minimum safe distance as required by the proper formula.

- Any beams which are not in alignment at the time of Channel Select pro deselected. Use the OMRON STI Test Procedure to verify the correct configuration.

- Floating Blanking increases the minimum safety distance therefore test object size will

- After programming or activating Channel Select system may not sense an intrusion into the detection zone, use a proper size test object to perform the OMRON STI Test Procedure.

5.1 E XACT CHANNEL SELECT (ECS)

ECS disables selected, fixed areas of the detection zone by masking off specific, fixed beam locations. ECS is helpful when stationary objects such as tooling and fixtures permanently obstruct a portion of the detection zone.

. . . . .

Channel Select

Statu

Channel 1

Channel 2

Channel 3

Channel 4

Channel 5...

System Response

ECS requires that any portion of the detection zone which is block

ed remain blocked

. If the obstruction is removed the 4700 system will enter a machine stop state. When selecting channels to be masked, one channel must remain unblocked. A channel is defined as one transmitter/receiver pair or “beam”.

See Table 5-1, System Response to Exact Channel Select for a diagram of 4700 system response during operation with ECS active.

Table 5-1

Exact Channel Select

Inactive

machine run machine stop machine run machine stop machine stop

System Response to Exact Channel Select

Exact Channel Select

Inactive

Exact Channel Select

Active

Exact Channel Select

Active

Exact Channel Select

5.2 M ULTI CHANNEL SELECT (MCS)

MCS stores up to four patterns of selected beams. Just as the ECS disables selected, fixed areas of the detection zone by masking off specific, fixed beam locations, the MCS can be programmed to store four different patterns. MCS is helpful when a machine requires multiple setups where stationary objects such as tooling, fixtures, or material frequently obstruct a portion of the detection zone. Access and programming is performed using a PLC or switch inputs. The suggested logic patterns for identification of the stored program are in Table 5-2 on page 20. Refer to drawings Figure 5-1 and Figure 5-2 for connection recommendations.

Active

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Original Instructions

LCM-3XX

SW2

SW1

0vdc

LCM-3XX

Out 1

Out 2

PLC

TB7

Switch Selection Connection

PLC Selection Connection

MPCE

Start

Prog

MCS

TB7

MPCE

Start

Prog

MCS

RET

ECS 2

ECS 1

LCM-3

SW2

SW1

LCM-3

Out 1

Out 0

0vdc ref.

PLC

Switch Selection Connection PLC Selection Connection

+24 VDC

Earth

0 vdc

RET

ECS 2

ECS 1

+24 VDC

Earth

0 vdc

Figure 5-1 Connection Recommendations for LCM Metal Enclosure

Figure 5-2 Connection Recommendations for LCM DIN Box

Switch Switch 2 Switch 1

Pattern1 0 0

Pattern 2 0 1

Pattern 3 1 0

Pattern 4 1 1

Note: 0 = Open, 1 = Closed.

Table 5-2 Switches for Multi Channel Select

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Original Instructions

5.3 F LOATING BLANKING

▲

Up to two channels can be disabled at any location in the detection zone without the 4700 system going to the machine stop state. The disabled channels are not fixed at a single location but “float” through the detection zone.

See Table 5-3 for a diagram of 4700 system response during operation with Floating Blanking active.

. . . . .

Blanking

Channel 1

Channel 2

Channel 3

Channel 4

Channel 5...

System Response

Symbol Description

Floating

Inactive

Exception

machine

stop

Table 5-3

Chann

loati

Blanking

Active

Exceptions

machine

run

Table 5-4

System Response to Floating Blanking

Channel

Blanking

Exception

loating

Active

machine

run

Channel

loating

Blanking

Active

Exceptions

machine

stop

Channel

loating

Blanking

Active

Exceptions

machine

stop

Icon Key for Tables 5-1 and 5-2

Channel

ting

Floa

Blanking

Active

Exceptions

machine

run

Channel

oating

Blanking

Active

Exception

machine

run

Optical channel is not blocked.

Optical channel is blocked.

Optical channel is selected by Exact Channel Select.

Optical channel is selected by Exact Channel Select and is blocked.

Channel

loating

Blanking

Active

Exceptions

machine

run

Channel

loating

Blanking

Active

Exceptions

machine

run

Channel

loating

Blanking

Active

Exceptions

machine

stop

Channel

loating

Blanking

Active

Exceptions

machine

stop

Channel

loating

Blanking

Active

Exceptions

machine

stop

5.4 U SING EXACT CHANNEL SELECT WITH FLOATING BLANKING

Warning! Using Exact Channel Select with Floating Blanking is an advanced feature. All situations which

may occur to the 4700 system detection zone must be carefully considered.

objects in the detection zone. The safety distance must be increased. Failure to do so may cause serious injury.

When both Exact Channel Select and Floating Blanking are selected, the floating channels are allowed to occur anywhere within the detection zone, even within the area selected by Exact Channel Select. In these areas, a channel that should normally be blocked is allowed to be clear.

5.4.1 THE EFFECT OF EXACT CHANNEL SELECT AND FLOATING BLANKING ON MINIMUM OBJECT RESOLUTION

When Exact Channel Select and/or Floating Blanking is active, the safety distance is affected. Exact Channel Select and Floating Blanking desensitize the light curtain and increase the size of the minimum object detected. The increase is equal to the channel spacing distance for each channel that is disabled.

• A 4700 system with 12 mm minimum object resolution and one channel disabled has a minimum object

sensitivity of:

12 mm + 6.25 mm = 18.25 mm (0.72 inches).

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The 4700 system is less sensitive to

Original Instructions

• A 4700 system with 12 mm minimum object resolution and two channels disabled has a minimum object

sensitivity of:

12 mm + 6.25 mm + 6.25 mm = 24.5 mm (0.96 inches).

If the size of the object detected by the 4700 system increases, the minimum safe distance must increase. Use the minimum object sensitivity given in T determine the new figure to use when computing the safety distance.

able 5-5, Table 5-6, Table 5-7 & Table 5-8 to

Table 5-5

Select and/or Floating Blanking

Sample S and Dpf Factors for 12 mm Resolution Systems

Total Number of Beams

Disabled by Exact Channel

None 12 mm (0.47 inches) 0.67 inches (16.96 mm)

1 Beam 19 mm (0.75 inches) 1.61 inches (40.93 mm)

2 Beams 26 mm (1.02 inches) 2.53 inches (64.25 mm)

3 Beams 33 mm (1.30 inches) 3.48 inches (88.43 mm)

4 Beams 40 mm (1.57 inches) 4.40 inches (111.75 mm)

5 Beams 47 mm (1.85 inches) 5.35 inches (135.93 mm)

etc...

Table 5-6

Select and/or Floating Blanking

Sample S and Dpf Factors for 14 mm resolution Systems

Total Number of Beams

Disabled by Exact Channel

None 14 mm (0.55 inches) 0.9 inches (24 mm)

1 Beam 25 mm (0.98 inches) 2.4 inches (61 mm)

2 Beams 36 mm (1.42 inches) 3.9 inches (99 mm)

3 Beams 47 mm (1.85 inches) 5.4 inches (136 mm)

4 Beams 58 mm (2.28 inches) 6.8 inches (173 mm)

5 Beams 69 mm (2.72 inches) 8.3 inches (211 mm)

etc...

Minimum

Object Resolution S

Minimum

Object Resolution S

Depth Penetration Factor, Dpf

for use with

Depth Penetration Factor, Dpf

for use with

ANSI Formula (Dpf

= 3.4 (S-.276) inches)

ANSI Formula (Dpf

= 3.4 (S-.276) inches)

Table 5-7

Select and/or Floating Blanking

Sample S and Dpf Factors for 20mm resolution Systems

Total Number of Beams

Disabled by Exact Channel

None 20 mm (0.79 inches) 1.75 inches (44.45 mm)

1 Beam 31 mm (1.22 inches) 3.21 inches (81.53 mm)

2 Beams 42 mm (1.65 inches) 4.60 inches (118.96 mm)

3 Beams 53 mm (2.09 inches) 6.16 inches (156.86 mm)

4 Beams 64 mm (2.52 inches) 7.63 inches (193.76 mm)

5 Beams 75 mm (2.95 inches) 9.1 inches (231.16 mm)

etc...

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Object Resolution S

Minimum

Depth Penetration Factor, Dpf

r use with

ANSI Formula (Dpf

= 3.4 (S-.276) inches)

Original Instructions

. . . . .

Light

Detection Zone

Light

Channel S elec t Area

Obstruction

▲

Table 5-8

Select and/or Floating Blanking

Sample S and Dpf Factors for 30 mm resolution Systems

Total Number of Beams

Disabled by Exact Channel

None 30 mm (1.18 inches) 3.07 inches (78.0 mm)

1 Beam 52 mm (2.05 inches) 6.03 inches (153.2 mm)

2 Beams 74 mm (2.01 inches) 8.96 inches (227.6 mm)

3 Beams 96 mm (3.78 inches) 11.91 inches (302.5 mm)

4 Beams 118 mm (4.65 inches) 14.87 inches (377.7 mm)

5 Beams 140 mm (5.51 inches)‘ 17.80 inches (452.0 mm)

etc...

Minimum

Object Resolution S

Depth Penetration Factor, Dpf

for use with ANSI Formula

= 3.4 (S-.276) inches)

(Dpf

Hard guarding refers to mechanical barriers such as sheet or expanded metal, etc. See Figure 5-3 Adding Hard guarding to Light Curtain when Using Channel Select for an example.

Floating Blanking changes the resolution (object size) of the 4700 system and will require different mounting distance

Figure 5-3 Adding Hard guarding to Light Curtain when Using Channel Select

5.5 A CTIVATING AND PROGRAMMING EXACT CHANNEL SELECT

Warning! To prevent unauthorized modification of the sense field, the system controller should be installed in

an enclosure with supervisor-controlled access.

Exact Channel Select is activated by setting position 4 of Switches A and B, located under the controller cover. Refer to Figure 3-1. Any mismatch between the settings of the switches will result in a alarm condition.

To program an ECS pattern, the 4700 system must be in the machine stop state. An ECS pattern is stored

by blocking th

e appropriate area of the detection zone and pressing, then releasing the program button (See Figure 3-4 and Figure 3-5 for locations). The MCS works the same as the ECS except in addition to blocking the appropriate area of the detection

zone, an four position binary

switch or PLC

or two SPST switches are needed to differentiate the four possible pattern.

5.6 MCS PROGRAMING

1. Ensure that power is supplied to the controller, and that the light curtain is green and showing all beams are clear. The display should read “00”.

2. Set position 4 of switches A and B to the closed position a

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“03”.

nd press “Start”,

the display should red

Original Instructions

3. Set the Pattern select inputs, see Table 5-2 Switches for Multi Channel Select.

4. Place the desired object in field (block beams) and press the “program” button, the display should read “01”.

5. Push the “start” button, and the display should read “03”. The light curtain will enter the Machine Run

state.

add more patterns (a total of eight possible) Set the Pattern select inputs to another program the

6. To display will read

7. To change from one pattern to another, change the ECS inputs to the desired program and push the sta

rt button.

“27”, press the start button and continue to step 4. Repeat steps 4 and 5.

The 4700 syste mode. The Start button m

m will then enter the interlock or machine stop condition, regardless of the operating

ay be pressed-and-released or power may be cycled to enter the machine run state. Subsequent power cycles will result in operation in accordance with the configured operating mode.

A new ECS pattern is recorded when the system is

in the machine stop

state with no alarms, the configuration switches are correctly set, and the Program button is pressed and released. If the configuration switches are subsequently set to disable ECS, the stored ECS pattern is cleared.

NOTE! Replace controller cover after changing system configuration. See

Section 3.1.2 on page 12 for details.

and

SWITCH A SWITCH B

OPERATING MODE 4 5 6 4 5 6

Exact Channel Select Active CLOSED

Exact Channel Select Inactive

(default setting)

One-channel Floating Blanking

Two-channel Floating Blanking

Floating Blanking Inactive (default

Not Allowed – alarm Condition CLOSED

Table 5-9 Switch Settings, Exact Channel Select and Floating Blanking

Active

setting)

/ON

OPEN

/OFF

CLOSED

/ON

OPEN

/OFF

OPEN

/OFF

/ON

OPEN

/OFF

CLOSED

/ON

OPEN

/OFF

CLOSED

/ON

Section 3.1.1 on page 11

CLOSED

/ON

OPEN

/OFF

CLOSED

/ON

OPEN

/OFF

OPEN

/OFF

CLOSED

/ON

OPEN

/OFF

CLOSED

/ON

OPEN

/OFF

CLOSED

/ON

5.7 ACTIVATING FLOATING BLANKING

Floating Blanking (either one- or two- beam) is activated by setting positions 5 and 6 of Switches A and B located under the controller cover. Refer to . Any mismatch between the settings of Switches will result in an alarm condition. Use of the program button is not required.

5.8 ADDITIONAL GUARDING WHEN USING EXACT CHANNEL SELECT

Exact Channel Select creates “holes” in the detection zone. These “holes” are required for certain applications. If an obstruction does not completely fill these “holes” one of two actions will need to happen: (Refer to Figure 5-3 Adding Hard guarding

1. The safe mounting distance will need to be increased to account for the larger opening in the curtain.

2. The area not filled by an obstruction must be guarded, typically by some method of hard guarding.

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to Light Curtain when Using Channel Select).

Original Instructions

. . . . .

6 D

IAGNOSTIC AND

EST

EATURES

6.1. DIAGNOSTIC DISPLAY

A two-digit numeric display on the front of the controller indicates system status. The table below provides the operating mode codes. A full listing of diagnostic codes can be found in Section 12 Troubleshooting.

Table 6-1

Operational Display Code Summary

Display Code Description

00 Normal Operation

01 Waiting for Start or Program Input

02 Normal Operation

Floating Blanking Active

03 Normal Operation

Channel Select Active

04 Normal Operation

Floating Blanking and Channel Select Active

6.2 I NDIVIDUAL BEAM INDICATORS

The 4700 system has a visible, red Individual Beam Indicator (IBI), adjacent to each infrared beam. These IBI’s are located on the receiver. The IBI will light when the infrared beam fails to meet the conditions necessary for the 4700 system to remain in the machine run state.

IBI’s are not a safety critical component. An IBI failure will not cause an alarm condition and the 4700 system w

ill cont

inue to operate.

6.3 MACHINE PRIMARY CONTROL ELEMENT (MPCE) MONITORING

MPCE monitoring is an important safety function. It monitors the 4700 system interface to the guarded machine and checks to ensure that the control elements are responding correctly to the light curtain and to detect any inconsistency between the two machine MPCE.

Connections for MPCE monitoring are made at the controller on terminals 10 and 11 for the DIN c

ontroller and on TB7 te Section 10 Connecting To The Machine Control Circuit. On power-up, the 4700 system looks for an MPCE

closed condition. If this is found, it will enter a state consistent with the sele mode. When the 4700 system enables its safety outputs, it monitors the MPCE for a closed-to-open transition. This transition must occur within 300 ms or the 4700 system considers the MPCE faulted. The 4700 system will then enter an alarm state. Additionally, if the MPCE connections are incorrectly wired, the 4700 will enter an alarm state.

Upon entering a machine stop state, the MPCE input must close within 300 ms of the safety output switchin using the configuration switches located in the controller.

NOTE! When MPCE is not active, place a jumper between the terminals MPCE and MPCE RTN for

the DIN controller (or place a jumper between terminals 1 and 2 of TB7 for the Solid State Output Version of the metal chassis controller).

g or the system will

rminals 1 and 2 for the metal chassis controller. For a detailed diagram, see

cted operating

enter the alarm state. The ability to disable MPCE monitoring is provided

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Original Instructions

6.3.1 ACTIVATING AND DEACTIVATING MPCE MONITORING

(on Din Controller and Metal Chassis Solid State Version)

MPCE monitoring is activated by setting position 3 of Switches A and B located under the controller cover. Refer to alarm condition.

Table 6-2. Any mismatch between the settings of Switches A and B will result in an

Table 6-2 MPCE Switch Settings

MPCE MONITORING 3 3

Active OPEN/OFF OPEN/OFF

Not Active (default setting) CLOSED/ON CLOSED/ON

SWITCH A SWITCH B

NOTE! Replace controller cover and retention screws after changing system configuration. See

Section 3.1.1 on page 11 and Section 3.1.2 on page 12 for details.

6.3.2 ACTIVATING AND D EACTIVATING MPCE MONITORING ON THE M ETAL CHASSIS CONTROLLER-RELAY OUTPUT

ERSION

MPCE monitoring is activated by setting Jumper 2 in the ON position located on the main controller board of the metal chassis controllers. Position 3 of the dipswitch does not affect the operation of Relay version controller.

6.4. STATUS INDICATOR LIGHTS

The following status indicator lights are found on both the receiver and the controller.

6.4.1 SAFETY OUTPUT STATUS

When the 4700 system is in the machine run state, the green indicator LEDs on the receiver and controller illuminate, indicating that the safety outputs are ON.

6.4.2 INTERLOCK STATUS

When the 4700 system enters an interlock state, the yellow interlock and red LEDs on the receiver and controller are continuously illuminated.

6.4.3 ALARM STATUS

When the 4700 system enters an alarm state, the yellow LEDs on the receiver and controller flash periodically. Additionally, a code indicating the type of fault is displayed on the two-digit diagnostic display located on the controller. Error codes are defined in Section 12 Troubleshooting.

6.4.4 EXACT CHANNEL SELECT AND FLOATING BLANKING STATUS

When Exact Channel Select and/or Floating Blanking is active, the amber LEDs on the receiver and controller are illuminated.

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Original Instructions

. . . . .

▲

7 O

UTPUTS

7.1 SAFETY OUTPUTS

7.1.1 DIN CONTROLLER AND METAL CHASSIS SOLID STATE VERSION

The 4700 system supplies two independent PNP-type, safety outputs to provide Run/Stop signals to the guarded machine. In the machine Run state, the safety outputs are electrically conducting and source 650 milliamps of current at 24 VDC. In the Machine Stop state, the outputs are not electrically conducting.

WARNING! This product is designed for use on a 24 VDC, negative ground (protective earth) electrical

system only. Never connect the 4700 system to a positive ground (p

ground (protective earth) wiring scheme, certain simultaneous shorts of both safety outputs may not be detected

and the guarded machine may not stop resulting is severe operator injury.

7.1.2 METAL CHASSIS CONTROLLER – RELAY OUTPUT VERSION

The 4700 system supplies 1 N.O. and 1 N.C/N.O. dry relay contacts, safety outputs to provide Run/Stop signals to the guarded machine. In the Run state the N.O. contacts are closed and will conduct the supplied voltage. In the Machine Stop state, the N.O. contacts are open. The N.C. contact will open in a Run state and close in a Stop state.

rotective earth) system. With a positive

7.2. AUXILIARY OUTPUTS

7.2.1 DIN CONTROLLER AND METAL CHASSIS SOLID STATE VERSION

Two auxiliary outputs are provided. Auxiliary output AUX1 OUT is NPN and sinks up to 100 mA to system ground when in the on condition. Auxiliary output AUX2 OUT is PNP and sources 250 mA at 24 VDC when in the on condition.

7.2.2 METAL CHASSIS CONTROLLER - RELAY OUTPUT VERSION

N.O./N.C. auxiliary outputs are provided. These outputs are intended for light curtain Status indication. The auxiliary output is user configurable for Alarm mode and Follow mode.

7.2.3 AUXILIARY OUTPUT OPERATING MODES

The auxiliary outputs can be set to enter an ON condition either when:

•The safety outputs are in the machine run state (Follow Mode), or

•The 4700 system enters an alarm state (Alarm Mode).

The auxiliary output operating mode is selected by setting position 7 under the controller cover. Refer to Table 7-1. Any mismatch between the settings of the switches will result in an alarm conditions.

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Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

of Switches A and B located

Original Instructions

Light Curtain

Ds is the minimum safe distance between the light curtain sens ing field and the point of operation hazard (pinch point).

▲

8 S

AFE

Table 7-1

Auxiliary Output Operating Mode 7 7

Auxiliary Outputs on in RUN (Follow) state OPEN/OFF OPEN/OFF

Auxiliary Outputs on in FAULT (Alarm) state CLOSED/ON CLOSED/ON

NOTE! Replace controller cover and retention screws after changing system configuration. See Section 3.1 for details.

OUNTING

Auxiliary Output Operating Mode Switch Settings

SWITCH A SWITCH B

ISTANCE

WARNING! Never install a 4700 system without regard to

the safety distance. If the 4700 system is mounted too

point of operation hazard, the machine may not stop in time to

prevent an operator injury.

A 4700 system must be mounted far enough from the machine danger zone so the machine will stop before a hand or other body part reaches the hazardous area. This distance is called the safety distance. It is a calculated number based on a formula. See Figure 8-1 Safe Mou illustration of the safety distance.

nting Di

close to the

stance for an

OMRON SCIENTIFIC TECHNOLOGIES INC.

Fremont CA USA Tel: 1/888/510-4357 in USA and Canada

Regardless of the calculated distance, a 4700 system should never be mounted closer to the p allowed by Table 0-10 in OSHA 1910.217.

Figure 8-1 Safe Mounting Distance

oint of operation hazard than

8.1 US SAFE DISTANCE FORMULAS

In the United States two formulas exist to properly determine the safety distance. STI recommends the formula provided by the American National Standards Institute (ANSI) which incorporates additional factors when compared to the formula required by OSHA.

The ANSI formula given below is for a normal approach to the light curtain.

= K x (Ts + Tc + Tr + Tbm) + D

Where:

= minimum safety distance, in inches, between the 4700 system detection zone and the nearest point

of operation hazard.

K =

hand speed constant in inches per second. The ANSI standard value is 63 inches/second which assumes the operator starts a hand motion B11.19-1990, “The value of the hand speed constant, K, has been determined by various studies and

although these studies indicate speeds of 63 in./sec. to over 100 in./sec., they are not considered conclusive determinations. The user should consider all factors, including the physical ability of the operator, when determining the value of K to be used.”

= the stop time of the press (or machine) in seconds, measured from the final de-energized control

element. Measured at maximum closing velocity.

toward the point of operation from rest. According to ANSI

Original Instructions

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