LNTECH SLA-3 Manuale utente

SLA-3 Bending Machine Protection Device

Instruction Manual

SHANDONG LAIEN OPTIC-ELECTRONIC TECHNOLOGY CO.,LTD.

Contents

1 Basic Introduction

1.1 Summary ………………………………………………………………… 1

1.2 Manual Composition ………………………………………………… 1

1.3 Standards ……………………………………………………………… 1

1.4 Safety Signs Instruction ……………………………………………… 2

1.5 Cautions ………………………………………………………………… 2

1.6 Application Guide ……………………………………………………… 3

2 Important Information

2.1 Terminology……………………………………………………………… 5

2.2 Usage …………………………………………………………………… 6

2.3 Technical Parameters…………………………………………………… 7

2.4 Characteristics ………………………………………………………… 8

2.5 Working Modes………………………………………………………… 8

3 Components

3.1 External Size……………………………………………………………11

3.2 Parts Instruction…………………………………………………………12

3.3 Receiver Indicators……………………………………………………12

4 Installation

4.1 Safety Distance ……………………………………………………… 14

4.2 Beam Position ………………………………………………………… 15

4.3 Speed Change Point ………………………………………………… 15

Contents

4.4 Installation Postion …………………………………………………… 16

4.5 Installation Instruction ………………………………………………… 18

4.6 Installation Tools ……………………………………………………… 21

5 Wiring

5.1 Cautions ……………………………………………………………… 22

5.2 Wiring with Safety Relay ……………………………………………… 23

5.3 I/O Wiring ……………………………………………………………… 24

5.4 Signal Cable ………………………………………………………… 25

6 Debugging

6.1 Debug……………………………………………………………………26

6.2 Safety Test ………………………………………………………………27

7 Checkout and Maintenance

7.1 Cautions …………………………………………………………………29

7.2 Checkout Schedule ……………………………………………………29

8 Troubleshooting …………………………………………… 30

1 Important Information

1.1 Summary

1.2 Composition

This manual is composed of the SLA-3 device's instruction, operation,

installation, wiring, maintenance and troubleshooting etc. excludes the

operation instruction for the machine protected(installed with SLA-3),

please refer to the manual from the machine protected manufacturer

This manual contains chapters:

Important information contains emphasis information,the makeup of

this manual,control dependability information,certicate,directive and

so on.

Basic introduction contains the usage,features, working schematic

drawing and terminology,technical parameter data and specication of

the SLA-3 device

Cautions for installation of the SLA-3 device contains calculating

determination of placement position and attentions for neighboring

placement.

The device's function and external size.

NPN/PNP output wiring,the wiring with safety relay and so on.

Debugging

Checkout and Maintenance

Troubleshooting

1.3 Applicable Standards

Standards Title

EN 61496-1-2013 Machinery safety-Electro-sensitive protective

equipment-Part 1:General requirements and tests

EN 61496-2-2013

Machinery safety-Electro-sensitive protective

equipment-Part 2:Active opto-electronic protective

devices

EN ISO 13849-1-2008 Safety of machinery -- Safety-related parts of control

systems -- Part 1: General principles for design

1.4 Safety Signs

1.5 Notes

1. Read manual

Please take note of the contents marked includes the

peroper operation instructions, taken as the important components

for SLA-3 device, ensure of the manual placed at right place.

2. Operator Ability

To carry out the installtion,adjustment and maintenance by the

qualied person

3. Warning

SLA-3 can't be used with any machine that ejects materials

or components parts through the dened area, and can't

prevent the materials ejected leading to the injury.

Also can't provide the protection for below situation:

Failure to follow the instruction may result in a

serious injury or death

GB 28240-2012 Shears—Safety requirements

GB 28243-2012 Hydraulic press brakes—Safety requirements

GB 7247.1-2001 Safety of laser products--Part 1:Equipment

classication,requirements and users guide

GB 4208-2008 Degrees of protection provided by enclosure(IP code)

Failure to follow the instruction may lead to minor or

moderate injury

1.6 Application Cautions

1. All the upper tools come with the same height and bending middle

center, the falling prevention equipment need to be mounted on the

worktable or upper tools

2. The SLA-3 is not used to monitor two bending machines placed in a

horizontal plane

3. If the workpiece block the light beams, SLA-3 stop immediately

the press closing, meanwhile any wavy material maybe cause the

unexpected lockout, so need mute the SLA-3 before materail interrupt

the beams. i.e. when the upper tool approaching the materail at 6-15mm

(as per bending machine overstroke) , control system should send

out the muting signal to SLA-3 receiver, and ensure the closing speed

<10mm/s according to the type 4 standards.

● SLA-3 offers complete protection (nger and hands) from rapid

intervention shortly before the press closes completely, during the very

short time before complete closing with non protection, at the same time

SLA-3 function is muted(muting indicator ON)

● The switch keys should be kept by the designated person, and to

select the working modes according to the application requirements

● The protection function can't be performed to the bending machine

with press closing only at working speed, or too long overrun distance

● Prevent the SLA-3 device falling down

1. Must keep a certain distance between the SLA-3 beams and

upper tool, the distance referring to overrun distance measuring

value and distance of SLA-3 beam to upper tool

2. After installtion, only allowed to change the mould which has the

same overrun distance, otherwise need re-adjust SLA-3 installation

position

3. SLA-3 used with PLC, PLC monitors related short circuited and

bypass state, provides closing signal and return signal, also process

the SLA-3 output OSSD1 and OSSD2

4. Installation and connection follow the instruction manual, complte

the safety regulations to ensure safety operation, not any change

allowed to circuit which will cause protection failure.

4. SLA-3 special mode enables the bending or wavy material or even

edge bending within a closed box. If the bending machine only closes at

work speed,or too big excess of stroke, SLA-3 won't provide protection,

i.e. won't prevent access to the hazardous area.

5. The bending machine control system must meet type 4 standards

requirements.

6. The protected machine must detect the danger status, and stop it

7. The laser beam maybe intervened by airow, cause the unexpected

lockout, so guarantee the workplace without airow or little.

2.Basic Instruction

2.1 Terminology

Electro-sensitive protective equipment (ESPE)

Assembly of devices and components working together for protective

tripping or presence-sensing purposes and comprising as a minimum.

Detection Capability

Sensing function parameter limit specied by the supplier that will cause

actuation of the electro-sensitive protective equipment(ESPE).

EDM:

Means by which the electro-sensitive protective equipment(ESPE)

monitors the state of control devices which are external to the ESPE.

Lockout Condition:

Condition, initiated by a fault, preventing normal operation of the electro-

sensitive protective equipment(ESPE). All output signal switching

devices(OSSDs) and, where applicable, all secondary switching

devices(SSDs) are signalled to go to the OFF-state.

Muting:

Temporary automatic suspension of a safety function(s) by safety-

related parts of the control system.

On-state

State in which the output circuit is complete and permits the ow of

current.

Response Time:

Maximum time between the occurrence of the event leading to the

actuation of the sensing device and the output signal switching

devices(OSSD) achieving the OFF-state.

Fault:

State of an item characterized by inability to perform a required function,

excluding the inability during preventive maintenance or other planned

actions, or due to lack of external resources.

Performance Level(PL e):

SLA-3 device comply with EN ISO 13849 PL e requirements,i.e. EN954

cat.4 requirements.

Failure:

Termination of the ability of an item to perform a required function

Note 1: After failure the item has a fault

Note 2: "Failure" is an event, as distinguished from"fault", which is a state.

Note 3: This concept, as dened, does not apply to items consisting of software only.

Note 4: In practice,the term fault and failure are often used synonymously

Self-checking:

The device switches automatically into the "safe state" when it is faulty.

Standard Mounting Range:

Maximum distance between transmitter and receiver is 5 m, if exceed

the distance may lead to hazardous motion. For longer range please get

in contact with us.

Overrun Distance:

The distance covered during the overrun (e.g. by the ram of a press).

Start Interlock:

After initial operation or after a power supply interruption a renewed

"enabling" is blocked by the start interlock.The renewed release of the

switching unit is only possible by closing and opening of the start entry.

Box Bending Mode:

The E3 is muted during during bending process.

2.2 Usage

SLA-3 is the safety device specially applied to bending machine for

operator's protection which adpoted class 1 laser, A three-dimension

laser protective eld between the emitter and receiver to form the

guarding area underneath the clamped upper tool, any intervention into

the area shuts down the closing movement of the press.

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