Reer SAFEGATE S, SM, SMPO, SMO, SMP Installation, Use And Maintenance Manual

Installation,
use and maintenance

(Copy of the original instructions)

Type 4 barrier for Access Control

with Muting functions integrated

Introduction

SUMMARY

INTRODUCTION ...........................................................................................................................5

PURPOSE OF THIS DOCUMENT ...................................................................................................................... 5

PRODUCT DESCRIPTION ................................................................................................................................. 5

CONTENT OF THE PACKAGE ........................................................................................................................... 5

GLOSSARY ........................................................................................................................................................... 6

DISPOSAL OF MATERIALS ............................................................................................................................... 6

SAFETY ........................................................................................................................................7

SIMBOLOGY ......................................................................................................................................................... 7

PRECAUTIONS .................................................................................................................................................... 7

CAUTIONS BEFORE INSTALLATION ................................................................................................................ 8

LIST OF APPLICABLE STANDARDS ................................................................................................................. 9

EC DECLARATION OF CONFORMITY ............................................................................................................ 10

SYSTEM ARCHITECTURE ........................................................................................................11

POSSIBLE CONFIGURATIONS (VIA OPTIONAL ACCESSORIES) ............................................................. 12

THE MUTING FUNCTION ...........................................................................................................15

A) 2 INTEGRATED CROSS MUTING SENSORS, ONLY FOR PALLET OUTPUTS (LX) ............................. 16

B) 2 INTEGRATED PARALLEL MUTING SENSORS, ONLY FOR PALLET OUTPUTS (L2) ........................ 17

C) 2 INTEGRATED CROSS MUTING SENSORS, FOR BI-DIRECTIONAL GATES (TX) ............................ 18

D) 4 INTEGRATED PARALLEL MUTING SENSORS, FOR BI-DIRECTIONAL GATES (T4) ....................... 19

Concurrent ..............................................................................................................................................................19

E) 2 EXTERNAL CROSS INTEGRATED MUTING SENSORS, FOR BI-DIRECTIONAL GATES (TX).

F) 4 EXTERNAL PARALLEL MUTING SENSORS, FOR BI-DIRECTIONAL GATES (T4). .......................... 21

Concurrent ..............................................................................................................................................................21

PARTIAL MUTING .............................................................................................................................................. 22

Partial Muting with Enable .......................................................................................................................................22

Partial Muting with Disable ......................................................................................................................................22

MUTING OVERRIDE .......................................................................................................................................... 23

Override with spring return key ................................................................................................................................23

Override with pushbutton .........................................................................................................................................23

INSTALLATION ...........................................................................................................................24

CALCULATION OF THE SAFETY DISTANCE ................................................................................................. 24

GENERAL FORMULA FOR CALCULATING THE SAFETY DISTANCE ........................................................ 24

MODELS WITH RESOLUTION 30 MM – 40 MM .............................................................................................. 25

MODELS WITH 2/3/4 BEAMS............................................................................................................................ 25

MULTIPLE SYSTEMS ........................................................................................................................................ 27

USE OF DEFLECTING MIRRORS ................................................................................................................... 28

DISTANCE FROM REFLECTING SURFACES ................................................................................................ 29

MECHANICAL ASSEMBLY AND OPTICAL ALIGNMENT ............................................................................... 30

SM - SMO MODELS ELECTRICAL CONNECTIONS ................................................................31

PRECAUTIONS ................................................................................................................................................. 31

WARNINGS ON CONNECTION CABLES ........................................................................................................ 31

EMITTER CONNECTIONS ............................................................................................................................... 31

RECEIVER CONNECTIONS ............................................................................................................................. 33

TEST FUNCTION ............................................................................................................................................... 34

SELECTION OF OPERATING MODES ............................................................................................................ 35

EDM ..................................................................................................................................................................... 36

OVERRIDE .......................................................................................................................................................... 37

OVERRIDE WITH KEY WITH SPRING RETURN KEY ................................................................................... 37

OVERRIDE WITH PUSHBUTTON ................................................................................................................... 37

RESTART (MANUAL OPERATION) .................................................................................................................. 38

AUTOMATIC OPERATION ................................................................................................................................ 38

MUTING ENABLE............................................................................................................................................... 39

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Muting Enable active: correct Muting sequence ......................................................................................................39

20

2

Introduction

APPENDIX A: SM - SMO MODELS WIRING SAMPLES ..........................................................40

SMP - SMPO MODELS ELECTRICAL CONNECTIONS ...........................................................44

PRECAUTIONS ...................................................................................................................................... 44

WARNINGS ON CONNECTION CABLES ............................................................................................ 44

EMITTER CONNECTIONS ............................................................................................................................... 44

RECEIVER CONNECTIONS ............................................................................................................................. 46

Available congurations. ..........................................................................................................................................46

TEST FUNCTION ............................................................................................................................................... 48

SELECTION OF OPERATING MODES ............................................................................................................ 49

EDM ..................................................................................................................................................................... 49

OVERRIDE (PC PROGRAMMING) ................................................................................................................... 50

OVERRIDE WITH SPRING RETURN KEY ...................................................................................................... 50

OVERRIDE WITH PUSHBUTTON ................................................................................................................... 50

RESTART (MANUAL OPERATION) .................................................................................................................. 51

AUTOMATIC OPERATION ................................................................................................................................ 51

MUTING ENABLE............................................................................................................................................... 52

Muting Enable active: correct Muting sequence ......................................................................................................52

MUTING ENABLE/DISABLE ............................................................................................................................. 52

Muting Enable/Disable active: Correct Muting sequence ........................................................................................52

PARTIAL MUTING .............................................................................................................................................. 53

1) Partial Muting with Enable ...................................................................................................................................53

2) Partial Muting with Disable ..................................................................................................................................53

APPENDIX B: SMP - SMPO MODELS WIRING SAMPLE ........................................................54

S MODELS ELECTRICAL CONNECTIONS ..............................................................................55

PRECAUTIONS ................................................................................................................................................. 55

WARNINGS ON CONNECTION CABLES ....................................................................................................... 55

TEST FUNCTION ............................................................................................................................................... 57

APPENDIX C: S MODELS WIRING SAMPLES .........................................................................57

LIGHT SIGNALS .........................................................................................................................58

EMITTER SIGNALS .......................................................................................................................................... 58

RECEIVER SIGNALS......................................................................................................................................... 59

RECEIVER SIGNALS (INTEGRATED LAMP) .................................................................................................. 60

FAULT DIAGNOSIS - EMITTER ........................................................................................................................ 61

FAULT DIAGNOSIS - RECEIVER ..................................................................................................................... 62

TECHNICAL SPECIFICATIONS .................................................................................................63

MECHANICAL DIMENSIONS .....................................................................................................66

CURTAIN DIMENSIONS .................................................................................................................................... 66

ACCESSORY DIMENSIONS ............................................................................................................................. 68

SOFTWARE SAFEGATE CONFIGURATOR ..............................................................................71

SOFWARE INSTALLATION ................................................................................................................... 71

HARDWARE characteristics requested by the PC for connection...........................................................................71

SOFTWARE characteristics requested by the PC for connection ...........................................................................71

How to install SAFEGATE CONFIGURATOR ..........................................................................................................71

CONFIGURATION PHASES.............................................................................................................................. 71

THE TOOLBAR ................................................................................................................................................... 72

GRAPHICAL INTERFACE ................................................................................................................................. 73

Level 1 password .....................................................................................................................................................73

Level 2 password .....................................................................................................................................................73

CONNECTION WITH SAFEGATE .................................................................................................................... 74

DOWNLOAD CONFIGURATION ...................................................................................................................... 74

CURTAIN PROGRAMMING .............................................................................................................................. 75

Level 2 password .....................................................................................................................................................75

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3

Introduction

CONFIGURATION VALIDATION AND LOADING ............................................................................................ 75

PRINT REPORT CONFIGURATION ................................................................................................................ 76

CONFIGURATION HISTORY ............................................................................................................................ 76

ERRORS DOWNLOAD ...................................................................................................................................... 76

SAFEGATE ACTIVATION .................................................................................................................................. 77

CURTAIN CONDITION MONITORING ............................................................................................................ 77

SETTING CURTAIN GENERAL PARAMETERS .............................................................................................. 77

SETTING MUTING PARAMETERS .................................................................................................................. 78

“Concurrent” Muting .................................................................................................................................................78

“Sequential” Muting ..................................................................................................................................................79

“L” Muting .................................................................................................................................................................80

“T” Muting ................................................................................................................................................................81

PARTIAL MUTING .............................................................................................................................................. 82

Partial Muting with Enable .......................................................................................................................................82

Partial Muting with Disable ......................................................................................................................................82

Partial Muting: MONITOR ........................................................................................................................................82

MUTING OVERRIDE .......................................................................................................................................... 83

Override with spring return key ...............................................................................................................................83

Impulse override ......................................................................................................................................................83

SAFEGATE DIAGNOSTIC - ERRORS ............................................................................................................. 84

CONTROLS, CARE AND MAINTENANCE ................................................................................85

PRE-ACTIVATION CHECKLIST ........................................................................................................................ 85

PERIODIC CONTROL ....................................................................................................................................... 85

CARE AND MAINTENANCE .............................................................................................................................. 86

WARRANTY ................................................................................................................................87

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4

Introduction

INTRODUCTION

Dear customer, REER congratulates you on purchasing this product.
Refer to this manual before using SAFEGATE; keep the CD-ROM and the Quick Installation Guide in a
place easy to be found in order to be able to refer to them when needed.

PURPOSE OF THIS DOCUMENT

This manual illustrates the operation of the programmable access curtain with Muting integrate SAFEGATE

functions. It shows specically:

¾ a general description of the SAFEGATE world;
¾ the characteristics of the muting function;
¾ the di󰀨erent types of muting and their application;
¾ the list of SAFEGATE models;
¾ the mechanical installation;
¾ the electrical connections;
¾ the mode of operation;
¾ the Muting, Override modes and their activation;
¾ SAFEGATE programming through dedicated software.

PRODUCT DESCRIPTION

The SAFEGATE light curtain is an optoelectronic multi-beam safety system belonging to the category of
Type 4 electro-sensitive devices (in accordance with EN 61496-1,2), equipped with the Muting function, for
the protection of persons exposed to dangerous machines or plants.
SAFEGATE ensures a perfect integration of the Muting sensors that are connected directly to the connectors
on the safety curtain.

In the hardware conguration models (SM and SMO) the Muting logic and the operating parameters are
fully dened by the connections of the main connector.

The SMPO programmable models retain all the features of SM and SMO models allowing also the

conguration of various parameters and additional features via the SCS software (SAFEGATE Conguration

Software).

The main features of SAFEGATE are as follows:

¾ Resolution: 30 and 40 mm – 2, 3 and 4 beams.
¾ Integration of the main safety functions, including self-monitoring of static outputs, EDM and Start/

Restart Interlock.
¾ Outline dimensions: 55 x 50 mm.
¾ Protected height: 300 to 2200 mm.
¾ Degree of protection: IP65 e IP67.
¾ Operating temperature: -30 ... +55 ° C (no condensation).
¾ Muting lamp and integrated curtain status indication (SMO/SMPO).

CONTENT OF THE PACKAGE

¾ SAFEGATE emitter and receiver
¾ CD-ROM (Containing conguration software and this Manual)
¾ Quick Installation Guide
¾ Mounting accessories bag
¾ Sealing caps for unused connectors

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5

Introduction

GLOSSARY

PROTECTED HEIGHT A measure that indicates the height controlled by the curtain.

SAFETY DISTANCE

EDM

MUTING

OVERRIDE

RANGE Maximum operating distance: between emitter and receiver

RESOLUTION

START/RESTART
INTERLOCK

RESPONSE TIME Time: between interruption of the gate and disabling of outputs
LX Muting Logic with 2 mono-directional cross-sensors
L2 Muting Logic with 2 mono-directional parallel sensors
TX Muting Logic with 2 bi-directional cross-sensors
T4 Muting Logic with 4 bi-directional parallel sensors
S Model without Muting
SM Model with Muting and Hardware conguration on main connector
SMO SM model with integrated Muting lamp
SMP Model with Muting Programmable with SCS software
SMPO SMP model with integrated Muting lamp

Minimum distance that must exist between the protected gate and the
dangerous area

External Device Monitoring: control of external contactors switching through

the feedback input.

Function of temporary suspension of the safety function: temporary exclusion

of the safety curtain, automatically and safely carried out based on the
machine cycle.

Forced activation of OSSD outputs: during the muting cycle for material

removal

Minimum detectable object size: to ensure the arrest of the dangerous

machine

Interlock function (manual reset required): when starting or restarting the

machine

DISPOSAL OF MATERIALS

Learn the regulations for collecting electrical and electronic products in force in the country where you want
to dispose of your product.
Observe local regulations for waste disposal and do not throw away old products with normal domestic
waste.
A proper disposal of non-usable products prevents potential negative consequences for the environment
and the population.

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6

Safety

SAFETY

SIMBOLOGY

 This symbol indicates an important warning for personal safety. Failure to comply with this warning

may result in high level risk for exposed personnel.

Î This symbol indicates an important warning for the proper operation of the curtain.

PRECAUTIONS

 The operations indicated in this document must only be carried out by qualied personnel. Such

personnel must have the necessary requirements to be able to operate on the electronic equipment
to be installed in order to avoid any risky situation.

REER declines any liability for malfunctioning of equipment installed by unqualied sta.

 Any use other than those indicated in this manual may be considered as potentially dangerous for

the installer and the machine operator.

 For safety reasons, please contact your country’s safety authorities or the relevant industry

association if necessary.

 For applications in the food industry, consult the manufacturer to verify compatibility between

curtain materials and chemical agents used.

 The protective function of optoelectronic safety devices is not eective in cases where:

¾ The machine stopping device cannot be actuated electrically and it is not possible to stop all dangerous

machine movements immediately and at any time during the operating cycle.
¾ The hazardous condition is associated with the falling of objects from above or ejection of these from

the machine.
¾ Anomalous forms of light radiation are present (for example, use of cablelless control devices on cranes,

radiation from weld spatter, etc). In this case additional measures may be necessary to ensure that the

ESPE does not fail to danger.

Î The strict and complete observance of all the standards, indications and prohibitions set forth in this

manual is a prerequisite for its proper operation.

REER S.p.A. therefore, declines any liability in case of non-respect, even partial, of these indications.

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7

Safety

CAUTIONS BEFORE INSTALLATION

Before installing the SAFEGATE safety system, you must verify all of the conditions listed below:

 The protection level (Type4, SIL3, SILCL3, PLe) of the SAFEGATE system must be compatible with

the danger level of the system to be controlled.

 The safety system should only be used as a stop device and not as a device for controlling the

machine.

 The machine control must be electrically actuated.

 It must be possible to immediately stop any dangerous operation of the machine.

In particular, the machine stopping times must be known and, if necessary, measured.

 The machine must not generate hazardous situations due to projection or fall of materials from

above; otherwise it is necessary to provide additional mechanical protections.

 The minimum size of any object to be intercepted must be greater than or equal to the resolution of

the selected model.

The knowledge of the shape and size of the hazardous area allows an estimation of the width and the

height of its access area:

 Compare these dimensions with the maximum working range and the height of the area guarded by

the model used.

Before placing the safety device, it is important to consider the following general guidelines:

 Verify that the temperature of the environment where the system is installed is compatible with the

temperature operating parameters indicated on the product label and in the technical data.

 Avoid positioning the Emitter and Receiver near intense or ashing high-intensity light sources.

 Specic environmental conditions may aect the level of detection of photoelectric devices.

In environments where fog, rain, smoke or dust may be present, it is advisable to use suitable Fc

correction factors at the maximum useful values of the working range to ensure the correct operation

of the equipment. In these cases:

Pu = Pm x Fc

where Pu and Pm are respectively the working range and maximum range in metres.

Recommended Fc factors are shown in the following table.

ENVIRONMENTAL CONDITION CORRECTION FACTOR Fc

Fog 0,25

Steam 0,50

Powders 0,50

Dense smoke 0,25

 If the device is placed in environments subject to sudden temperature uctuations, it is imperative

to take the appropriate steps to avoid condensation on the lenses, which may impair the detection
capability.

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8

Safety

LIST OF APPLICABLE STANDARDS

SAFEGATE is manufactured in compliance with the following European Directives:

2006/42/EC “Machinery Directive”
2014/30/EU “Electromagnetic Compatibility Directive”

And it complies with the following Standards:

Safety level

Tipo 4

¾ EN 61496-1:2013
¾ EN 61496-2:2013

¾ IEC 61508-1:(ed.2)

SIL 3

¾ IEC 61508-2:(ed.2)
¾ IEC 61508-3:(ed.2)
¾ IEC 61508-4:(ed.2)

SILCL 3 ¾ IEC 62061:2005/A2:2015
PL e - Cat. 4 ¾ EN ISO 13849-1: 2015

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9

Safety

EC DECLARATION OF CONFORMITY

Dichiarazione CE di conformità

EC declaration of conformity

REER SpA
via Carcano 32
10153 – Torino
Italy

dichiara che le barriere fotoelettriche SAFEGATE sono Dispositivi Elettrosensibili di Sicurezza (ESPE) di :

 Tipo 4 (secondo la Norma EN 61496-1:2013; EN 61496-2:2013)
 SIL 3 (secondo la Norma EN 61508-1:2010; EN 61508-2:2010; EN 61508-3:2010; EN 61508-4:2010)
 SILCL 3 (secondo la Norma EN 62061:2005/A2:2015)
 Cat.4 - PL e (secondo la Norma EN ISO 13849-1:2015)

declares that the SAFEGATE photoelectric safety barr

 Type 4 (according the Standard EN 61496-1:2013; EN 61496-2:2013)
 SIL 3 (according the Standard EN 61508-1:2010; EN 61508-2:2010; EN 61508-3:2010; EN 61508-4:2010)
 SILCL 3 (according the Standard EN 62061:2005/A2:2015)
 Cat.4 - PL e (according the Standard EN ISO 13849-1:2015)

Electro-sensitive Protective Equipments (ESPE)

realizzati in conformità alle se

guenti Direttive Europee:

complying with the following European Directives:

 2006/42/EC "Direttiva Macchine"

"Machine Directive"

 2014/30/EU "Direttiva Compatibilità Elettromagnetica"

"Electromagnetic Compatibility Directive"

e alle seguenti Norme: /and to the following Standards:

 EN 50178: 1997
 EN 55022: 2006
 EN 61000-6-2: 2005

e sono identiche all'esemplare esaminato ed approvato con esame di tipo CE da:

and are identical to the specimen examined and approved with a CE - type approval by:

TÜV SÜD Product Service GmbH – Zertifizierstelle – Ridlerstraße 65 – 80339 – München – Germany
N.B

. number: 0123 - Certificate No: Z10 17 05 24820 071

Carlo Pautasso Simone Scaravelli

Direttore Tecnico Amministratore Delegato

Technical Director Managing director

iers are :

Torino, 15/06/2017

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10

System architecture

SYSTEM ARCHITECTURE

SAFEGATE is supplied as a pair (Emitter/Receiver) and allows integration with external Muting sensors
that are directly connected to the connectors installed on the curtain.

¾ Each curtain can be congured as LX, L2, TX and T4 (see the di󰀨erent Muting types in the section

“MUTING FUNCTION”) through the wiring of the main connector. This conguration can be changed

at any time.
¾ SAFEGATE can be used with (pre-aligned and pre-congured) Muting arms, with M5 multibeam

photocells (available as accessories) or any other Muting sensor.
¾

S models integrate the functions of “START/RESTART INTERLOCK” and ”EDM” but do not allow the

Muting function.
¾

SM models allow the Muting function, but have no integrated signal lamp.

¾ Programmable

problems in complex application scenarios.
¾

SMO-SMPO models with Integrated signalling lamp allow the immediate viewing of the curtain status

even at a distance.

SMP-SMPO models allow an ideal use of further conguration options to solve potential

PLEASE NOTE

The sample gure represents the Receiver

of a SMPO model.
This model comes with integrated signal
lamp.

Additionally, the conguration connector

allows the USB connection to a PC with

the conguration software installed.

Main
connector

Integrated

Signalling

Lamp

Configuration
connector
and auxiliary
signal lamp

Seat for
anchorage
of any
Muting
arms

Sensor 3-4
Muting
connector

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Sensor 1-2
Muting
connector

Signals

label

11

System architecture

POSSIBLE CONFIGURATIONS (via optional accessories)

MAL2X - braccetti L a 2 raggi incrociati TX/RX

MAL2X - L-arms with 2 crossed TX/RX beams

MAL2XE

EMITTER

Optional

Accessorio

Accessory

opzionale

MAT2X - T-arms with 2 crossed TX/RX beams

MAT2X - braccetti T a 2 raggi incrociati TX/RX

MAT2XE SX

EMITTER

Optional

Accessorio

opzionale

Accessory

SAFEGATE - EMITTER

SAFEGATE - RECEIVER

SAFEGATE - EMITTER

MAT2XE DX

EMITTER

Optional

Accessorio

Accessory

opzionale

MAL2XR

RECEIVER

Optional

Accessorio

Accessory

opzionale

SAFEGATE - RECEIVER

MAT2XR SX

RECEIVER

Optional

Accessorio

opzionale

Accessory

MAT2XR DX

RECEIVER

Accessorio

Accessory

opzionale

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Optional

12

System architecture

MAL2P TRX - L-arms with 2 parallel beams with reector

MAL2P TRX - braccetti L a 2 raggi paralleli con riflettore

MA2P SX 2R

REFLECTOR

Optional

Accessorio

Accessory

opzionale

MAT4P TRX - T arms with 4 parallel beams with reectors

MAT4P TRX - braccet. T a 4 raggi paralleli con riflettore

MA2P SX 2B

EMITTER / RECEIVER EMITTER / RECEIVER

Optional

Accessorio

Accessory

opzionale

SAFEGATE - EMITTER

SAFEGATE - RECEIVER

SAFEGATE - RECEIVER

MA2P DX 2B

EMITTER / RECEIVER

Optional

Accessorio

Accessory

opzionale

MA2P DX 2B

Optional

Accessorio

Accessory

opzionale

MA2P SX 2R

Optional

Accessorio

Accessory

opzionale

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SAFEGATE - EMITTER

MA2P DX 2R
REFLECTORREFLECTOR

Optional

Accessorio

Accessory

opzionale

13

System architecture

MZL2XP arms with 2 cross-linked/parallel adjustable M5 beams

MZL2XP - braccetti L a 2 raggi incrociati/paralleli regolabili M5

MZL2XPE MZL2XPR
EMITTER RECEIVER

Optional

Accessorio

Accessory

opzionale

MZT2X - T-arms with 2 adjustable M5 cross beams

MZT2X - braccetti T a 2 raggi incrociati regolabili M5

SAFEGATE - EMITTER

SAFEGATE - RECEIVER

Optional

Accessorio

Accessory

opzionale

MZT2XE SX

EMITTER RECEIVEREMITTER RECEIVER

Optional

Accessorio

Accessory

opzionale

SAFEGATE - EMITTER

MZT4P - T-arms with 4 adjustable M5 parallel beams

MZT4P - braccetti T a 4 raggi paralleli regolabili M5

MZT2XE DX

Optional

Accessorio

Accessory

opzionale

MZT4PE SX MZT4PE DX

EMITTER

Optional

Accessorio

Accessory

opzionale

SAFEGATE - EMITTER

MZT2XR SX

Optional

Accessorio

Accessory

opzionale

EMITTER

Optional

Accessorio

Accessory

opzionale

SAFEGATE - RECEIVER

MZT2XR DX

Optional

Accessorio

Accessory

opzionale

MZT4PR SX MZT4PR DX

RECEIVER

Optional

Accessorio

Accessory

opzionale

SAFEGATE - RECEIVER

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RECEIVER

Optional

Accessorio

Accessory

opzionale

14

The Muting function

THE MUTING FUNCTION

The Muting function is the temporary exclusion of the safety curtain, automatically and safely carried out
based on the machine cycle.

ÎÎ Carefully verify your risk analysis to make sure the Muting function is compatible with your

application and what additional measures should be taken.

There are basically two types of applications:

1. Those allowing people to enter the dangerous area during the non-dangerous part of the machine
cycle.

Example:
Positioning or Removing the workpiece

Depending on the position of the tool, which is the hazardous
element, one of the two curtains (the one facing the tool
work area) is active while the other is in Muting condition
to allow the operator loading/unloading the workpiece. The
Muting condition of the two curtains will then be reversed
when the tool is to work on the opposite side of the machine.

2. Those who allow material transit and prevent access to the people.

Example: Pallet exit from the hazardous area

The safety curtain is equipped with Muting sensors able to

e󰀨ectively discriminate between the person and the material

allowed to get through the controlled gate. The essential
requirements concerning the Muting function are described

in the following Standards:

ÎÎ IEC TS 62046 - “Application of protection devices for people

detection”.

ÎÎ EN 415-4 - “Safety on packaging machines – Palletizers and

Unpalletizers”.

ÎÎ IEC 61496-1 - “Electro-sensitive protective devices”.

General requirements:

¾ The Muting function is a temporary suspension of the safety function that needs to be activated and

deactivated automatically.

¾ The activation and subsequent deactivation of the Muting function must take place only through the use

of two or more wired and independent signals activated by a correct timing or spatial sequence. This
means that a stand-alone failure cannot activate the Muting function.

¾ It should not be possible to activate the Muting function when SAFEGATE has deactivated the safety

outputs.

¾ It should not be possible to start a Muting function by switching o󰀨 and then restarting the device.
¾ Muting must be activated at an appropriate point of the machine cycle, i.e. only when there are no risks

for the operator.

¾ Muting sensors must be mechanically protected so that any impact does not modify their alignment.

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The Muting function

A) 2 INTEGRATED CROSS MUTING SENSORS, ONLY FOR PALLET OUTPUTS (LX)

In this way sensors 1 and 2 are on the same side as the vertical curtain and are placed in front of the
dangerous gate. This mode is unidirectional and is useful for protecting gates with pallet output.
The activation of the Muting function occurs after the simultaneous interruption (within 4 sec maximum) of

S1 and S2 sensors. As long as both sensors remain busy, the Muting function continues. When the rst of

the 2 sensors is released, the material will still have 4 seconds to leave the protected area limited by the
curtain. The Muting condition will be disabled as soon as the protected area is released.
At the end of 4 seconds, if the curtain is still busy, the OSSD outputs are disabled by interrupting the
operation of the machine. This allows selecting the maximum duration of the Muting condition (timeout) as
30 seconds or 9 hours.

ÎÎ Other timings are available with programmable programs.
Î For the safe operation of the LX conguration, it is absolutely essential that the horizontal Muting

sensor elements are located within the hazardous area.

Î The minimum distance between two consecutive pallets must be less than 10 cm or greater than

32cm.

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The Muting function

B) 2 INTEGRATED PARALLEL MUTING SENSORS, ONLY FOR PALLET OUTPUTS (L2)

In this way sensors 1 and 2 are on the same side as the vertical curtain and are placed in front of the
dangerous gate. This mode is unidirectional and is useful for protecting gates with pallet output.
The activation of the Muting function occurs after the simultaneous interruption (within max 4 sec) of

sensors S1 and S2. As long as both sensors remain busy, the Muting function continues. When the rst

of the 2 sensors is released, the material will still have 4 seconds to leave the protected area limited by
the curtain. The Muting condition will be disabled as soon as the protected area is released. At the end of
4 seconds, if the curtain is still busy, the OSSD outputs are disabled by interrupting the operation of the
machine.
This allows selecting the maximum duration of the Muting condition (timeout) as 30 seconds or 9 hours.

ÎÎ Other timings are available with programmable programs.
Î For the safe operation of the L2 conguration, it is imperative that horizontal Muting sensors are

located within the hazardous area.

Î The minimum distance between two consecutive pallets must be greater than 40 cm.

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The Muting function

C) 2 INTEGRATED CROSS MUTING SENSORS, FOR BI-DIRECTIONAL GATES (TX)

In this way, the two Muting sensors are each rst on a di󰀨erent side of the vertical curtain.

This mode is unidirectional and is useful for protecting gates with pallet output.

ÎÎ The crossing point of the two Muting sensors must be placed inside the hazardous area to avoid

undesirable and dangerous activations of the Muting function.

The activation of the Muting function occurs after the simultaneous interruption (within max 4 sec) of
sensors S1 and S2. As long as both sensors remain busy, the Muting function continues. By releasing the

rst of the two sensors, the Muting function is disabled.

This mode also allows selecting the maximum duration of the Muting condition (timeout) as 30 seconds or
9 hours.

ÎÎ Other timings are available with programmable programs.

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The Muting function

D) 4 INTEGRATED PARALLEL MUTING SENSORS, FOR BI-DIRECTIONAL GATES (T4)

This mode is bidirectional and is useful for protecting gates with pallet output.

Using this mode, two di󰀨erent modes of operation are outlined:

Concurrent

The activation of the Muting function occurs after the sensors S1 and S2 are interrupted (within max 4sec)
(or S4 and S3 with material moving in the opposite direction).
The Muting state ends after the release of the gate, and of the S3 sensor (or S2 with material moving in
the opposite direction).

ÎÎ For the T4 models (concurrent operation), there are two available timeouts: 1) 30 sec; 2) 9 hours.

Sequential

The activation of the Muting function occurs after the sequential interruption of sensors S1 and S2 (or S4
and S3 with material moving in the opposite direction) without time limitations.
The Muting state ends after the release of the gate, and of the S3 sensor (or S2 with material moving in
the opposite direction).

ÎÎ For the T4 models (sequential operation), there are two available timeouts: 1) 30 sec; 2) innite.

ÎÎ Other timings are available with programmable programs.
ÎÎ In both modes of operation, the minimum pallet length must be 70 cm (to ensure simultaneous

occupancy of all four sensors).

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The Muting function

E) 2 EXTERNAL CROSS INTEGRATED MUTING SENSORS, FOR BI-DIRECTIONAL GATES (TX).

This mode is bidirectional and is useful for protecting gates with pallet output.

ÎÎ The crossing point of the two Muting sensors must be placed inside the hazardous area to avoid

undesirable and dangerous activations of the Muting function.

The activation of the Muting function occurs after the simultaneous interruption (within max 4 sec) of

sensors S1 and S2. As long as both sensors remain busy, the Muting function continues. When the rst

of the two sensors is released, the Muting function is disabled. In this mode of operation the maximum
duration of the Muting condition (timeout) can be selected in 30 seconds or 9 hours.

ÎÎ Other timings are available with programmable programs.

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The Muting function

F) 4 EXTERNAL PARALLEL MUTING SENSORS, FOR BI-DIRECTIONAL GATES (T4).

This mode is bidirectional and is useful for protecting gates with pallet output.

Using this mode, two di󰀨erent modes of operation are outlined:

Concurrent

The activation of the Muting function occurs after the sensors S1 and S2 are interrupted (within max 4
sec) (or S4 and S3 with material moving in the opposite direction).
The Muting state ends after the release of the gate, and of the S3 sensor (or S2 with material moving in
the opposite direction).

ÎÎ For the T4 models (concurrent operation), there are two available timeouts: 1) 30 sec; 2) 9 hours.

Sequential

The activation of the Muting function occurs after the sequential interruption of sensors S1 and S2 (or S4
and S3 with material moving in the opposite direction).
The Muting state ends after the release of the gate, and of the S3 sensor (or S2 with material moving in
the opposite direction).

ÎÎ For the T4 models (sequential operation), there are two available timeouts: 1) 30 sec; 2) innite.

ÎÎ Other timings are available with programmable programs.
ÎÎ In both modes of operation, the minimum pallet length must be 70 cm (to ensure simultaneous

occupancy of all four sensors).

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The Muting function

PARTIAL MUTING

The Partial Muting feature allows you to limit the

Muting function to a number of well-dened beams.

By this function, you can enable the Muting function
only for those beams that will be interrupted by the
passage of the material (e.g. lower pallets at the end
of the product cycle). The remaining beams, however,
can be kept active to protect the dangerous gate.

ÎÎ This function is only available on SMP/SMPO

models and must be managed through the

Safegate Congurator software (select “Partial

Muting Enabling”).

The software should then select the number of beams a󰀨ected by Partial Muting, taking into account that
the rst Partial Muting beam always starts from the bottom (connectors side).

For this operation, it may be useful to verify the
Monitor software function (free beams are indicated

by di󰀨erent colouring than the busy ones) and the

various numerical information on the side (LBO,
FBO, etc.).
Only one value can be entered when programming

the number of beams a󰀨ected by this function.

There are two types of partial Muting and, for both,
the “Partial Muting” input pin (pin 6 of M12 12-pin
connector on the receiver) must be used.

Partial Muting with Enable

With this option, the Partial Muting function is normally deactivated. To activate this function, the input
signal (pin 6 of the receiver) must switch from LO to HI (rising edge) before starting the Muting cycle.

Partial Muting with Disable

With this option the Partial Muting function is normally active. To activate this function, the input signal (pin
6 of the receiver) must switch from LO to HI (rising edge) before starting the Muting cycle.

ÎÎ Refer to the “OPERATING MODES” section to correctly set this function.

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The Muting function

MUTING OVERRIDE

The OVERRIDE function becomes necessary when, after incorrect Muting activation sequences, the
machine stops leaving the material in the dangerous gate.
In this situation, the OSSD outputs are inactive because the curtain and/or at least one Muting sensor are

busy. In this condition, the OVERRIDE request LED ashes.

Î This operation activates the OSSD outputs to remove the material obstructing the gate.
Î During the entire phase in which the OVERRIDE function is active, the Override/Muting lamp ashes.

You should periodically verify the eciency of this lamp (during Muting or Override phases).

Î The Pulse Override command automatically activates the curtain outputs until both the curtain and

the Muting sensors are again free of obstacles. During this period the curtain is not able to protect
access to the dangerous gate. It is therefore necessary that all operations be conducted under close
supervision of experienced personnel.

The user will use the type of Override previously congured:

1. Override with spring return key

2. Override with pushbutton

Override with spring return key

Activation of this function must be done by bringing both receiver pins 9 and 10 to + 24VDC (within a 400

ms time window), for example by using a 2-way key switch with spring return.

Override has a maximum duration of 15 minutes; it can end due to two di󰀨erent causes.

1. When the selector is released or the 15 minutes expire, the override ends, bringing the outputs to

OFF, turning o󰀨 the lamp, and returning the display to normal. However, it is still possible to start a

new override, releasing the selector and reactivating it.

2. At the release of the curtain and sensors (clear gate) the override ends and the GUARD condition is
reactivated (the curtain is working properly) without additional commands.

Override with pushbutton

The activation of this function must occur inverting (within a time window of 400 ms) the condition of pins
9 and 10 of the receiver through the use of a 2-way switch.

When override is active the condition of pins 9 and 10 is no longer veried.

MAXIMUM OVERRIDE TIME (MODELS WITH HARDWARE CONFIGURATION)

The override has a maximum duration of 15 minutes (repeatable).

The function can only restart if the button is pushed again (complying with the following conditions):

1. Maximum OVERRIDE time (after n consecutive requests) = 60 min

2. Maximum number of consecutive OVERRIDE requests = 30.

MAXIMUM OVERRIDE TIME (MODELS WITH SOFTWARE CONFIGURATION)

The function can only restart if the button is pushed again (complying with the following conditions):

1. Maximum OVERRIDE time (after n consecutive requests) = 4 x timeout override

2. Maximum number of consecutive OVERRIDE requests = 30.

At the release of the curtain and sensors (clear gate) the override ends and the GUARD condition is
reactivated (the curtain is working properly) without additional commands.

The timer (point 1) and the counter (point 2) are reset if one of the following conditions occurs:

¾ A proper sequence of Muting.
¾ A system reset (turning it o󰀨 and on).

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Mechanical installation

INSTALLATION

CALCULATION OF THE SAFETY DISTANCE

The e󰀨ectiveness of the protection heavily depends

on the correct positioning of the curtain according
to the danger. The curtain must be positioned at a
distance greater than or equal to the minimum safety
distance S so that reaching the dangerous point can
only be achieved after the dangerous operation of the
machine has stopped.

The positioning shall be such that:

• Reaching the dangerous point is avoided without

crossing the area controlled by the curtain.

• No person is allowed in the dangerous area

without this being detected. For this case,
additional safety devices (e.g. horizontal light
curtains) may be required.

S

C KxT

1

2

a

The ISO 13855 standard provides the elements for

3

calculating the safety distance.

1. Dangerous point

If the machine under consideration is subject to a type

C specic standard, reference should be made to this

rule.

2. Protected plane

3. Reference plane
a. Height of dangerous point
S. Safety distance

If the S distance calculated appears to be excessive,

it is necessary:

• to reduce the total time the machine is o󰀨

• to improve the resolution of the curtain.

GENERAL FORMULA FOR CALCULATING THE SAFETY DISTANCE

S = K x T + C

S

K

minimum safety distance between the protection and the dangerous point, expressed in mm.

advance speed of the body or parts of the body, expressed in mm per second.

K values can be:

K = 2000 mm per second for safety distances up to 500 mm
K = 1600 mm per second for safety distances over 500 mm

Total machine stopping time including:

T

C

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T1 response time of the protection device in seconds
T2 machine reaction time to stop the hazardous operation, in seconds.

additional distance expressed in mm.

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Mechanical installation

MODELS WITH RESOLUTION 30 mm – 40 mm

Curtains with resolution

for arms detection.

Curtain resolution (d) 30 - 40 mm

S

Protected

plane

H

MODELS WITH 2/3/4 beams

Body detection curtains.

Curtain with 2/3/4 beams

Dangerous

point

Calculating the minimum

safety distance (S)

Refer to the general formula
for the safety distance
calculation.

S = K x T + C

S = 2000xT + 8x(d-14)

If the formula provides as a

result: S>500 it’s possible to

use

K=1600

S = 1600xT + 8x(d-14)

(with C = 8x(d-14))

• The S distance must
not be less than
100mm

• If the resulting
distance S is greater
than 500 mm, you
can recalculate the
distance using K =

1600.

• In this case the
distance must still not
be less than 500 mm.

S

Recommended height

according to the number

of beams

N° Recommended height

2 400 - 900 mm
3 300 - 700 - 1100 mm
4 300 - 600 - 900 - 1200 mm

Protected

plane

H≥1100

H≥700

H≤300

Dangerous

point

Refer to the general formula
for the safety distance
calculation.

S = K x T + C

S = 1600xT + 850

ÎÎ The S distance must not be less than 100 mm
ÎÎ If the resulting distance S is greater than 500 mm, it is possible to recalculate the distance using

K = 1600 but in this case the distance must still not be less than 500 mm

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Mechanical installation

ÎÎ For applications on packaging machines (palletizers and unpalletizers), follow the instructions in

European standard EN 415-4, which are repeated here.

From low level (oor)

Device with 3 beams at least

Dimensions in m

Above the conveyor (rollers)

Device with 2 beams at least

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Mechanical installation

MULTIPLE SYSTEMS

ÎÎ When using multiple SAFEGATE systems, it is necessary to avoid them interfering optically with one

another: position the elements so that the beam emitted by the system Emitter is received only by
the respective Receiver.

The following gure shows some examples of correct positioning between the two photoelectric systems.

An incorrect positioning may cause interference, leading to an abnormal operation.

Systems side by side: A

Adjacent positioning of the two projectors

Overlapping systems: B

“L” combination: C

Cross-positioning between

projectors and receivers

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