LNTECH SLA-3 Manuel utilisateur
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
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,certicate,directive and
so on.
Basic introduction contains the usage,features, working schematic
drawing and terminology,technical parameter data and specication 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
2
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
qualied person
3. Warning
SLA-3 can't be used with any machine that ejects materials
or components parts through the dened 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
classication,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
3
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
4
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 airow, cause the unexpected
lockout, so guarantee the workplace without airow or little.
5
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 specied 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.
6
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 dened, 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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