Pilz PSEN op2H-A Series Bedienungsanleitung

PSEN op2H-A series

Operating Manual-1003069-EN-03

Safety light curtain

Preface

This document is a translation of the original document.

All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made

for internal purposes. Suggestions and comments for improving this documentation will be

gratefully received.

Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS p®, SafetyEYE®,

SafetyNET p®, the spirit of safety® are registered and protected trademarks of Pilz GmbH

& Co. KG in some countries.

SD means Secure Digital

1GENERAL INFORMATION .........................................................5

1.1 General description................................................................................................. 5

1.1.1 General description of the safety light curtain.......................................................... 5

1.1.2 Package content ..................................................................................................... 6

1.2 Guidelines for selecting the protective device ......................................................... 7

1.2.1 Resolution............................................................................................................... 7

1.2.2 Height of protected field .......................................................................................... 8

1.2.3 Minimum safety distance ........................................................................................ 9

1.3 Typical application areas .......................................................................................12

1.4 Safety information..................................................................................................13

2INSTALLATION ........................................................................14

2.1 Precautions to be taken during selection and installation of a light curtain .............14

2.2 General information on positioning the device........................................................15

2.2.1 Minimum distance from reflective surfaces ............................................................16

2.2.2 Distances between identical light curtains..............................................................17

2.2.3 Aligning transmitter and receiver............................................................................20

2.2.4 Using deviating mirrors ..........................................................................................20

2.2.5 Inspections following a first-time installation...........................................................21

3MECHANICAL ASSEMBLY......................................................23

4ELECTRICAL CONNECTIONS.................................................25

4.1 Connection guidelines............................................................................................27

5ALIGNMENT .............................................................................30

6SETTING THE FUNCTIONS .....................................................32

6.1 Reset to factory configuration ................................................................................33

6.2 Function list ...........................................................................................................33

7FUNCTIONS.............................................................................. 35

7.1 Restart function......................................................................................................35

7.2 Test .......................................................................................................................37

7.3 Reset .....................................................................................................................38

7.4 EDM ......................................................................................................................38

7.5 EDM selection........................................................................................................39

7.6 Reduced range ......................................................................................................40

7.7 Muting....................................................................................................................40

7.7.1 Disabling the muting function .................................................................................41

7.7.2 Muting display devices...........................................................................................41

7.7.3 Typical muting application and sensor connection .................................................42

7.7.4 Muting direction .....................................................................................................42

7.7.5 Muting timeout .......................................................................................................46

7.7.6 Partial muting.........................................................................................................47

7.8 Override.................................................................................................................47

7.8.1 Override mode .......................................................................................................48

8DIAGNOSTICS.......................................................................... 50

8.1 Status of LEDs.......................................................................................................50

9REGULAR CHECKS AND MAINTENANCE .............................53

9.1 Regular checks ......................................................................................................53

9.2 Maintenance ..........................................................................................................53

10 TECHNICAL DETAILS..............................................................54

11 LIST OF AVAILABLE MODELS ...............................................55

12 DIMENSIONS............................................................................56

13 FITTINGS ..................................................................................57

14 ACCESSORIES ........................................................................59

14.1 Rotating Mounting Bracket.....................................................................................59

14.2 Connection cable ...................................................................................................60

14.3 Axial connection cable, unshielded ........................................................................61

OPERATING MANUAL PSEN op2H-A series

1 GENERAL INFORMATION

1.1 General description

1.1.1 General description of the safety light curtain

The safety light curtains in the PSEN op2H-A series are multibeam active optoelectronic

protective devices for work areas in which machines, robots and automated plants in general

could endanger the physical integrity of operators who could come into contact with moving

parts, even if only by chance.

Light curtains in the PSEN op2H-A series are designed as inherently safe Type 2 systems for

accident prevention in accordance with applicable international safety standards, in particular

the following:

IEC 61496-1:2004 Safety of machinery: Electrosensitive protective equipment. Part 1:

General requirements and tests.

IEC 61496-2: 2006 Safety of machinery: Electrosensitive protective equipment –

Particular requirements for equipment using active optoelectronic protective devices.

A light curtain pair consists of a transmitter and a receiver. They produce an infrared

protected field, which is able to detect an opaque object within the specific resolution. Both

the transmitter and the receiver have control and monitoring functions. The connections are

made via an M12 connector, which is located in the lower profile area. The transmitter and

receiver are synchronised optically, so the two units do not have to be connected directly to

each other. The infrared beams that are transmitted and received are controlled and

monitored via a microprocessor, which provides the user with information about the operating

state of the light curtain via LED indicators (see Chapter 8).

A light curtain pair consists of 2 units, which may comprise one or more transmitter and

receiver modules, depending on the respective model. The receiver is the main control unit

for all functions. If an error occurs, it checks all the safety actions and decides on the

measures that are to be implemented in terms of safety, as well as performing other general

functions.

During the installation phase the user interface makes it easier to align the two units (see

Chapter 5).

As soon as the beams emitted from the transmitter are interrupted by an object, a limb or the

body of an operator, both output signal switching devices (OSSD) are opened immediately.

This controls the stopping of the corresponding machine, which is connected to the OSSD.

Some parts or paragraphs of this manual, which are of particular importance to the user or

installation engineer, are highlighted as follows:

The information contained in paragraphs marked by this symbol is

particularly relev

ant to safety and is important for accident

prevention.

This information must be read with particular attention and must be

strictly observed.

1003069-EN-03

OPERATING MANUAL PSEN op2H-A series

This manual contains all the information you need to select and operate the protective

devices.

Specialised knowledge of safety issues is required to integrate a safety light curtain correctly

in a plant.

PILZ’s technical customer service team is available to provide any information you need

regarding the functionality of the PSEN op2H-A safety light curtains and the safety

regulations concerning correct installation.

1.1.2 Package content

The following components are included:

•Receiver (RX)

•Transmitter (TX)

•Shortform for installing the safety light curtains in the PSEN op2H-A series

•CD with operating manual and other documents

•4 fastening brackets and corresponding mounting accessories

•2 fastening brackets for models with a height between 1200 and 1800 mm

1003069-EN-03

OPERATING MANUAL PSEN op2H-A series

1.2 Guidelines for selecting the protective device

Once the hazards have been assessed appropriately, there are at least three essential

features to consider when selecting a safety light curtain:

1.2.1 Resolution

The device’s resolution is understood to be the minimum size that an opaque object must be

to safely interrupt at least one of the beams that form the area of the protected field.

The resolution is closely linked to the part of the body that requires protection.

R = 30 mm Hand protection

As shown in Fig. 1, the resolution depends solely on the geometric properties of the lenses,

the diameter and the distance and so is unaffected by the light curtain’s ambient and

operating conditions.

Fig. 1– Resolution

Opaque object

Height of protected

field

Operating range

The resolution value can be calculated using the following formula:

R = I + d

where:

I = Distance between two adjacent lenses

d = Lens diameter

1003069-EN-03

OPERATING MANUAL PSEN op2H-A series

1.2.2 Height of protected field

The height of the protected field is understood to be the height protected by the safety light

curtain.

Fig. 2 – Height of protected field

Protected field

Height of protected

field

Operating range

The height monitored by the PSEN op2H-A corresponds to the overall height of the light

curtain.

With reference to the previous diagram, the height of the protected field can be taken from

the table below.

Model

Height of protected field

(mm)

PSEN op2H-A-30-030/1 300

PSEN op2H-A-30-045/1 450

PSEN op2H-A-30-060/1 600

PSEN op2H-A-30-075/1 750

PSEN op2H-A-30-090/1 900

PSEN op2H-A-30-105/1 1050

PSEN op2H-A-30-120/1 1200

PSEN op2H-A-30-135/1 1350

PSEN op2H-A-30-150/1 1500

1003069-EN-03

OPERATING MANUAL PSEN op2H-A series

PSEN op2H-A-30-165/1 1650

PSEN op2H-A-30-180/1 1800

1.2.3 Minimum safety distance

The protective device must be positioned at a specific safety distance (Fig. 3), which

guarantees that the operator cannot reach the danger zone until the hazardous machine

movement has come to a standstill by triggering the light curtain.

In accordance with the standard ISO 13855, this distance depends on 4 factors:

•Response time of the light curtain (the time that elapses between the beams being

effectively interrupted and the OSSD contacts opening).

•Machine’s stopping performance (time that elapses between the light curtain contacts

opening and the hazardous machine movement effectively stopping).

•Light curtain’s resolution

•Approach speed of the object to be detected.

Fig. 3 – Safety distance (vertical)

≥900 mm at a resolution > 40 mm

≤300 mm at a resolution > 40 mm

Minimum safety distance in mm

1003069-EN-03

OPERATING MANUAL PSEN op2H-A series

The safety distance is calculated using the following formula:

S = K (t1 + t2) + C

Therefore:

Minimum safety distance in mm

Speed of the object (limb or body) approaching the danger zone in mm/s

Light curtain’s response time in seconds (see Chapter 11)

Machine’s stopping performance in seconds

Additional distance based on the possibility of placing the body or limb into the danger

zone before the protective device responds

8 (d -14) for devices with a resolution ≤ 40 mm

850 mm for devices with a resolution > 40 mm

Device’s resolution

Note:

The value K corresponds to:

•2000 mm/s, if the calculated value S is ≤ 500 mm

•1600 mm/s, if the calculated value S is > 500 mm

When using light curtains with a resolution of > 40 mm, the upper beam must be positioned

at a height of ≥ 900 mm (H2) from the supporting base, while the lower beam must be

positioned at a height of ≤ 300 mm (H1).

Where the light curtain must be installed horizontally (Fig. 4), the distance between the

danger zone and the most distant optical beam must correspond to the value calculated

using the following formula:

S = 1600 mm/s (t1 + t2) + 1200 – 0.4 H

Therefore:

Minimum safety distance in mm

Light curtain’s response time in seconds (see Chapter 11)

Machine’s stopping performance in seconds

Height of the beams above the floor. This height must always be less than 1000 mm.

Fig. 4 – Safety distance (horizontal)

1003069-EN-03

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