Sick TGS - Testable Safety Light Curtain Operating instructions

Sick TGS - Testable Safety Light Curtain Operating instructions
OPERATING INSTRUCTIONS
TGS
Testable Safety Light Curtain
GB
Operating Instructions
TGS
This document is protected by the law of copyright, whereby all rights established therein remain with the
company SICK AG. Reproduction of this document or parts of this document is only permissible within the limits
of the legal determination of Copyright Law. Alteration or abridgement of the document is not permitted without
the explicit written approval of the company SICK AG.
2
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Contents
TGS
Contents
8010478/TA96/2009-12-03
1
About this document.........................................................................................................4
1.1
Function of this document....................................................................................4
1.2
Target group ..........................................................................................................4
1.3
Scope .....................................................................................................................4
1.4
Information depth .................................................................................................4
1.5
Abbreviations.........................................................................................................5
1.6
Symbols used ........................................................................................................5
2
On safety.............................................................................................................................6
2.1
Qualified safety personnel....................................................................................6
2.2
Applications of the device.....................................................................................6
2.3
Correct use ............................................................................................................7
2.4
General safety notes and protective measures ..................................................8
2.5
Test instructions....................................................................................................9
2.5.1
Pre-commissioning tests.....................................................................9
2.5.2
Regular testing of the safety device by experts.................................9
2.5.3
Daily testing of the safety device by authorised personnel ..............9
2.6
Environmental protection ...................................................................................10
3
Product Description ........................................................................................................11
3.1
Features...............................................................................................................11
3.2
Mode of operation...............................................................................................11
3.3
Displays ...............................................................................................................12
3.4
Fault indication....................................................................................................13
3.5
Examples: Application area ................................................................................14
3.6
Multiple safeguarding .........................................................................................14
4
Mounting ..........................................................................................................................15
4.1
Mounting the sensors .........................................................................................15
4.2
Calculating the safety distance ..........................................................................15
4.3
Minimum distance to reflective surfaces ..........................................................17
4.4
Steps for mounting the device ...........................................................................18
4.4.1
Mounting with sliding nuts................................................................19
5
Electrical installation......................................................................................................20
5.1
Internal testing ....................................................................................................21
5.2
External testing ...................................................................................................22
5.3
Setting the beam coding.....................................................................................24
6
Maintenance ....................................................................................................................25
7
Technical Data .................................................................................................................26
7.1
Overview of technical specifications ..................................................................26
7.2
Dimensional Drawings ........................................................................................29
8
Ordering information.......................................................................................................30
8.1
TGS selection table .............................................................................................30
8.2
Ordering information, accessories .....................................................................31
9
Appendix...........................................................................................................................32
9.1
EC declaration of conformity ..............................................................................32
9.2
Checklist for the manufacturer ..........................................................................34
9.3
List of tables ........................................................................................................35
9.4
List of illustrations...............................................................................................35
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
3
About this document
Chapter 1
Operating Instructions
TGS
1
About this document
Please read this chapter carefully before working with the documentation and the TGS
safety light curtain, also referred to in the following as TGS for short.
1.1
Function of this document
These operating instructions guide the technical personnel of the machine manufacturer
or machine operator in the safe assembly, configuration, electrical installation, commissioning as well as operation and maintenance of the TGS testable safety light curtain.
These operating instructions do not assist in the operation of the machine into which the
TGS testable safety light curtain is or will be integrated. The operating instructions for the
machine will contain information on this.
1.2
Target group
These operating instructions are for use by designers, developers and operators of
systems to be safeguarded by one or more TGS testable safety light curtain(s). They are
also meant for persons integrating the TGS into a machine, performing its first
commissioning or maintenance.
1.3
Note
Scope
These operating instructions apply to the TGS testable safety light curtain with the
following entry on the type label in the field Operating Instructions:
8010472
8010472/TA96
This document is part of SICK part number 8010472 (operating instructions “TGS Testable
Safety Light Curtain” in all available languages).
This document is an original document.
1.4
Information depth
These operating instructions contain the following information on the TGS testable safety
light curtain:
mounting
fault diagnosis and troubleshooting
electrical installation
part numbers
commissioning and configuration
conformity and approval
care and maintenance
In addition, the planning and use of safety devices such as the TGS requires specialist
technical knowledge not provided in this document.
The operation of the TGS must meet official and legal requirements.
General information on accident protection by means of optoelectronic safety devices is
contained in the brochure entitled “Safe Machines with Optoelectronic Safety Devices”.
4
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
About this document
Operating Instructions
Chapter 1
TGS
1.5
Abbreviations
Some information in these operating instructions is specially marked to ease rapid access
to this information:
ESPE
Electro-Sensitive Protectice Equipment
TGSE
TGS receiver unit
TGSS
TGS sender unit
OSSD
(Output Signal Switching Device) Signal output selecting the safety circuit
Note
Explanation
Recommendation
A note provides information on special features of the device.
An explanation communicates basic knowledge.
A recommendation assists in taking the best action.
1.6
Symbols used
Warning!
Always read warning notices carefully and follow them closely.
WARNING
This icon
identifies the sender, and the
and connection diagrams.
8010478/TA96/2009-12-03
icon identifies the receiver, in illustrations
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
5
On safety
Chapter 2
Operating Instructions
TGS
2
On safety
This chapter deals with your own safety and the safety of the equipment operators.
Please read this chapter carefully before working with the TGS or with the machine
protected by the TGS.
2.1
Qualified safety personnel
The TGS testable safety light curtain must be installed, connected, commissioned and
serviced only by qualified safety personnel. Qualified safety personnel are defined as
persons who …
due to their specialist training and experience have adequate knowledge of the powerdriven equipment to be checked
and
have been instructed by the responsible machine owner in the operation of the machine
and the current valid safety guidelines
and
are sufficiently familiar with the applicable official health and safety regulations,
directives and generally recognized engineering practice (e.g. DIN standards, VDE
stipulations, engineering regulations from other EC member states) that they can assess
the work safety aspects of the power-driven equipment
and
have access to these operating instructions and who have read them.
As a rule these are qualified safety personnel from the ESPE manufacturer or also those
persons who have been appropriately trained at the ESPE manufacturer, are primarily
involved in checking ESPE and are allocated the task by the organisation operating the
ESPE.
2.2
Applications of the device
The TGS safety light curtain is a non-contact safety device with a resolution of 20, 30 or
40 mm. It is designed for hand protection on machines and systems and optimised for
weaving machines. There are different safety distances, depending on the resolution.
The following criteria apply to its practical use (Fig. 1):
6
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
On safety
Chapter 2
TGS
The following criteria apply to its practical use (Fig. 1):
Re s o l u ti o n
O bj e c t
P rote c tive f i el d h e ig h t
M a rki ng s fo r p rote c tive f i el d l i m i t s
Fig. 1: The criteria for a TGS
Safety Light Curtain
P rote c t ive f i el d wi d t h
(6 m)
Depending on where it is installed, the TGS safety light curtain alone may not offer
sufficient protection. In this case it will be necessary to employ additional mechanical
safety devices.
Hazardous points must only be reached through the protection field. The system must not
start as long as there are persons within the danger area (Fig. 2).
Fig. 2: The mounting position
must prevent the following:
reaching over, under, around
and stepping behind
2.3
Correct use
The TGS safety light curtain must be used only as defined in section 2.2 “Applications of
the device”. It must be used only by qualified personnel and only on the machine where it
has been installed and initialised by qualified safety personnel in accordance with these
operating instructions.
If the device is used for any other purposes or modified in any way – also during mounting
and installation – any warranty claim against SICK AG shall become void.
8010478/TA96/2009-12-03
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
7
On safety
Chapter 2
Operating Instructions
TGS
2.4
General safety notes and protective measures
Safety notes
WARNING
Please observe the following procedures in order to ensure the correct and safe use of the
TGS safety light curtain.
The usage of the safety light curtain requires a risk analysis. Check whether the safety
light curtain can be used as the protective device or whether additional protective
measures are necessary.
The national/international rules and regulations apply to the installation, use and
periodic technical inspections of the safety light curtain, in particular:
– Machinery Directive 2006/42/EC (until 28.12.09 the Machinery Directive 98/37/EC)
– Work Equipment Directive 89/655/EEC
– the work safety regulations/safety rules
– other relevant safety regulations
Manufacturers and operators of the machine on which the safety light curtain is used
are responsible for obtaining and observing all applicable safety regulations and rules.
The notices, in particular the test regulations (see chapter “Test instructions”) of these
operating instructions (e.g. on use, mounting, installation or integration into the existing
machine controller) must be observed.
The organisation operating the machine on which the safety light curtain is used must
prevent bypassing of the protective field using suitable additional measures
Changing the configuration requires a separate risk analysis. Check in detail whether
and where a configuration change is actually required.
Changes to the configuration of the devices can degrade the protective function. After
every change to the configuration you must therefore check the effectiveness of the
protective device.
The person who makes the change is also responsible for the correct protective function
of the device. When making configuration changes, please always use the password
hierarchy provided by SICK to ensure that only authorised persons make changes to the
configuration. The SICK service team is available to provide assistance if required.
The tests must be carried out by qualified safety personnel or specially qualified and
authorised personnel and must be recorded and documented to ensure that the tests
can be reconstructed and retraced at any time.
The operating instructions must be made available to the operator of the machine where
the TGS safety light curtain is fitted. The machine operator is to be instructed in the use
of the device by qualified safety personnel and must be instructed to read the operating
instructions.
The external voltage supply of the devices must be capable of buffering brief mains
voltage failures of 20 ms as specified in EN 60_204C1. The power supply unit must
provide safe isolation (SELV/PELV). Suitable power supplies are available as accessories
from SICK (see section “Ordering information, accessories”).
The checklist according to the use of the non-contact safety device is printed at the end of
the English section of these operating instructions.
8
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
On safety
Operating Instructions
Chapter 2
TGS
2.5
Test instructions
2.5.1
Pre-commissioning tests
The inspection prior to placing in operation for the first time is used to confirm
compliance with the safety requirements in national/international regulations, in
particular the machinery safety regulations or the provision and use of work equipment
regulations (EC-Declaration of Conformity).
Inspection of the effectiveness of the protection equipment on the machine in all the
operating modes in which the machine can be placed - according checklist page 34.
Qualified personnel must, prior to starting work, instruct the personnel operating the
machine protected by the safety device. The instruction is the responsibility of the
machine operating company.
2.5.2
Regular testing of the safety device by experts
The inspection should be carried out in accordance with valid national regulations at the
intervals defined in the regulations. The intention of these inspections is to detect any
changes or manipulations of the protective devices since the original commissioning.
The inspections should also be carried out whenever major modifications are made to
the machine or protection equipment, as well as after re-adjustment or repairs in the
event of damage occurring to housing, front panel, etc.
2.5.3
Recommendation
Daily testing of the safety device by authorised personnel
The daily test ensures that the system is providing effective protection to personnel.
This is necessary to detect any modifications to the mounting of the system since the last
test. It could then be possible for the hazardous area to become unprotected and allow for
example reach over or under.
Note
This is an important recommendation, the manufacturer may also take other
(organisational) measures to ensure the correct function.
To check that undetected access to the hazardous area between the opto-electronic
device and the mechanical guarding is not possible:
Move the test rod diameter 20 mm (resp. 30 or 40 mm as appropriate) slowly through the
guarded access opening following the direction of the arrows, as shown in the diagram on
the left (Fig. 3).
Then check the diagram on the right to make sure there is no risk that anyone may be able
to reach over or under the danger zone.
Note
During this test procedure, only the red LED on TGSE should be illuminated.
Fig. 3: Daily check using the
test rod
8010478/TA96/2009-12-03
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
9
On safety
Chapter 2
Operating Instructions
TGS
2.6
Environmental protection
The TGS safety light curtain has been designed to minimise environmental impact. It uses
only a minimum of power and natural resources.
At work, always act in an environmentally responsible manner. For this reason please note
the following information on disposal.
Disposal
Always dispose of unserviceable or irreparable devices in compliance with local/national
rules and regulations with respect to waste disposal.
Note
10
We would be pleased to be of assistance on the disposal of these devices. Contact us.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Product Description
Chapter 3
TGS
3
Product Description
3.1
Features
Special features of the TGS safety light curtain:
Beam coding
Self-testing
Practical resolution 20, 30 and 40 mm
Optical synchronisation
3.2
Mode of operation
The TGS safety light curtain comprises the sender unit and the receiver unit (Fig. 4). The
protective field is the area between the two units defined by protective field and protective
field width.
The protection field height determines the size of the particular system. The upper and
lower limit of the protection field is identified on the system, via grey marks on the casing.
The synchronisation between sender and receiver is optical, i.e. electric connections
between both components are not required.
Re s o l u t i o n
150 ... 1,200 mm
Protec tive f ield height
Fig. 4: Features of the TGS
safety light curtain
20/30/40 mm
Protective field width
6 m
8010478/TA96/2009-12-03
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
11
Product Description
Chapter 3
Operating Instructions
TGS
3.3
Displays
LEDs on the units signal the different operating conditions.
Fig. 5: LED indication
yellow
red
green
Sender unit
Meaning/Function
LED yellow
Operating voltage applied, Sender sending
Test active, Sender unit not sending
Immediately after power-up: Flashes 1, 2 or 3 times (display of set coding)
Receiver unit
LED green
Meaning/Function
LED red
Light path free
Output active
Light path free
Output active
Light path broken
Output inactive
Contamination
Immediately after power-up: Red LED flashes 1, 2 or 3 times (display of set coding)
illuminated
12
flashes at 1/s
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Product Description
Chapter 3
TGS
3.4
Fault indication
The yellow LED on the sender unit and the red LED on the receiver unit deliver diagnostic
data in the event of a fault. The information is given in a flash mode defined below:
Fig. 6: Error display sender
unit
1.5 s
Sender unit defective:
Replace sender
....
1.5 s
Fault at input:
Test wiring
....
Fig. 7: Error display receiver
unit
Receiver unit defective:
Replace receiver
1.5 s
....
1.5 s
1.5 s
8010478/TA96/2009-12-03
Fault at inputs or outputs:
Test wiring
....
....
External sender detected:
Test coding
Test for external TGS senders
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
13
Product Description
Chapter 3
Operating Instructions
TGS
3.5
Examples: Application area
The protective function of the TGS testable safety light curtain is given when the following
requirements are met:
It must be possible to electrically affect the machine control.
During mounting of the TGS, reaching over, reaching under, reaching around and
stepping behind must be prevented.
The relevant legal and official requirements apply to use and arrangement of the
sensors. These requirements differ, depending on the area of application.
Fig. 8: Hazardous point
safeguarding on a weaving
machine with TGS safety light
curtain
3.6
Multiple safeguarding
Beam coding provides a solution when using multiple guarding systems in which uncoded
units would normally affect one another (Fig. 9). Three codes can be selected.
Fig. 9: Application with
weaving machines: no
mutual interference through
beam coding
Code 1
Code 2
Green LED
lights
E 1
S 1
Green LED
lights
E 2
S 2
200
15 0
Code 1
Green LED
lights
E 3
S 3
Weaving machine 2
Weaving machine 1
15 0
Code 3
Green LED
lights
Weaving machine 3
200
15 0
E 4
S 4
Weaving machine 4
200
15 0
> 12 m
If an identical coding is used, the distance between receiver (E 4) and an external,
identically coded sender (S 1) must be at least 12 m.
14
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Mounting
Chapter 4
TGS
4
Mounting
4.1
Mounting the sensors
This chapter describes the preparation and completion of the mounting of the TGS safety
light curtain. The mounting requires two steps:
determining the necessary safety distance
The following steps are necessary after mounting:
completing the electrical connections (chapter 5)
aligning sender and receiver unit (section 4.4)
testing the installation (section 2.5)
4.2
Calculating the safety distance
The safety light curtain must be mounted with sufficient safety distance:
from the hazardous point
from reflective surfaces
No protective function without sufficient safety distance!
WARNING
The reliable protective effect of the safety light curtain depends on the system being
mounted with the correct safety distance from the hazardous point.
A safety distance must be maintained between the safety light curtain and the hazardous
point. This safety distance ensures that the hazardous point can only be reached after the
dangerous state of the machine has been completely stopped.
1)
The safety distance as per EN 999+A1 and EN ISO 13 857 depends on:
stopping/run-down time of the machine or system
(The stopping/run-down time is shown in the machine documentation or must be
determined by taking a measurement.)
response time of the protective device (response times see section 7.1)
approach speed
other parameters that are stipulated by the standard depending on the application
1)
8010478/TA96/2009-12-03
EN 999 will be replaced by EN ISO 13855.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
15
Mounting
Chapter 4
Operating Instructions
TGS
The stopping time is a measured value of the machine. The approach speed is ...
... up to 500 mm safety distance:
2 m/s,
... above:
1.6 m/s.
Fig. 10: TGS, safety distance
to danger zone
2
3
1
≤ 75 mm
= Protective field hight
= Safety distance
4
= Danger zone
= Max. distance to prevent access behind guard
1)
How to calculate the safety distance S according to EN 999+A1 etEN ISO 13 857:
Hinweis
The following calculations show example calculations of the safety distance.
Firts calculate S using the following formula:
S = 2000 × T + 8 × (d – 14) [mm]
Where …
T = Stopping/run-down time of the machine
+ Response time of the protective device after light path interruption [s]
d = Resolution of the safety light curtain [mm]
S = Safety distance [mm]
The reach/approach speed is already included in the formula.
If the result S is N 500 mm, then use the determined value as the safety distance.
If the result S is > 500 mm, then recalculate S as follows:
S = 1600 × T + 8 × (d – 14) [mm]
If the new value S is > 500 mm, then use the newly determined value as the minimum
safety distance.
If the new value S is N 500 mm, then use 500 mm as the minimum safety distance.
Example:
Stopping/run-down time of the machine = 290 ms
Response time after light path interruption = 30 ms
Resolution of the safety light curtain = 14 mm
T = 290 ms + 30 ms = 320 ms = 0.32 s
S = 2000 × 0.32 + 8 × (14 – 14) = 640 mm
S > 500 mm, for this reason:
S = 1600 × 0.32 + 8 × (14 – 14) = 512 mm
1)
16
EN 999 will be replaced by EN ISO 13855.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Mounting
Operating Instructions
Chapter 4
TGS
Borderline case
Note
Due to the differentiation of two approach speeds there can be the borderline case that
the safety distance for
2000 mm/s approach speed > 500 mm
1600 mm/s approach speed < 500 mm
In this case, the safety distance is 500 mm exactly.
4.3
Minimum distance to reflective surfaces
The light beams of the sender can be deflected by reflective surfaces. This can lead to
non-detection of an object. Therefore, all reflective surfaces and items (e.g. material
containers) must maintain minimum distance a to the system’s protection field (Fig. 11).
The minimum distance a depends on the distance D between sender and receiver (Fig.
12).
Fig. 11: Minimum distance to
reflective surfaces
Reflective surface
Aperture angle Minimum distance a
8°
Distance D sender – receiver
Fig. 12: Distance a depending on scanning range [RW]
a (mm)
500
400
300
200
100
50
RW (m)
0
1
8010478/TA96/2009-12-03
2
3
4
5
6
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
17
Mounting
Chapter 4
Operating Instructions
TGS
4.4
Steps for mounting the device
Special features to note during mounting:
Always mount the sender and receiver parallel to one another.
WARNING
During mounting, ensure that sender and receiver are aligned correctly. The optical lens
systems of sender and receiver must be located in exact opposition to each other. The
system plugs of both devices must point in the same direction.
Fig. 13: TGS mounting
direction
S
h
= right
= wrong
1
S
R
2
R
h
S = Sender
R = Receiver
h = Height
Observe the safety distance of the system during mounting. On this subject read
chapter Calculating the safety distance on page 15.
18
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Mounting
Chapter 4
TGS
4.4.1
Mounting with sliding nuts
To mechanically mount the TGS, the base version always has 2 sliding brackets for the
sender unit and 2 sliding brackets for the receiver unit both with M5 thread (Fig. 14).
These sliding brackets are pushed into the slot of the housing; the side bracket can be
attached to this.
Side bracket
50
19
Fig. 14: Mechanical mounting
options for TGS Testable
Safety Light Curtains
Wall bracket
34.5
6
23
Clamping srew
(adjustment)
WARNING
14
31.5
6
10.5
2.2
28.5
1
3.5
Prevent the light curtains from moving!
WARNING
Recommendation
8010478/TA96/2009-12-03
To prevent the mounted light curtains from moving, the sliding brackets of the side
brackets shall be attached at the beginning and end of the slot (channel). Alternatively,
mount suitable devices in order to prevent possible movements.
When aligning installations with a large scanning range or with deflector mirror it is
recommended to use the laser alignment aid AR 60.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
19
Electrical installation
Chapter 5
Operating Instructions
TGS
5
Electrical installation
Note
The TGS safety light curtain meets the interference suppression requirements (EMC) for
industrial use (interference suppression class A). When used in residential areas it can
cause interference.
The sender and receiver unit of the TGS can be directly integrated into the machine
control. Additional evaluation is not required.
Sender and receiver have a 7-pin plug (Fig. 15).
Fig. 15: Unit plug pin out
7
1
Notes
3
2
5
2
*)
4
6
5
4
1
6
3
7
Pin
Colour
Function
Designation
1
2
3
*)
4
5
6
7
white
brown
green
yellow
grey
–
blue
beam coding
supply voltage
beam coding
functional earthing
test
–
0V
Sel 1
+ 24 V
Sel 2
Shield
1
2
3
*)
4
5
6
7
white
brown
green
yellow
grey
pink
blue
beam coding
supply voltage
beam coding
functional earthing
output
signal output
0V
Sel 1
+ 24 V
Sel 2
Shield
OSSD
0V
0V
As an alternative, earthing can also be effected via a sliding claw bracket at the
machine, order no. 4031411
The maximum cable cross-section, which can be connected, is 0.25 mm. Both units shall
be supplied with 24 V DC (± 20 %).
The external voltage supply of the devices must be capable of buffering brief mains
voltage failures of 20 ms as specified in EN 60_204C1. The power supply unit must
provide safe isolation (SELV/PELV). Suitable power supplies are available as accessories
from SICK (see section “Ordering information, accessories” page 31.)
20
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Electrical installation
Operating Instructions
Chapter 5
TGS
5.1
Internal testing
The TGS has internal testing; therefore, externally initiated testing is not required.
The TGS usually works in connection with a programmable logic control (PLC). In addition
to the OSSD switching output, the signal output must also be used.
The OSSD output is cyclically tested in its active state (short pulse to LOW), see Fig. 16.
When selecting the control elements, ensure that the test pulses – for the parameters
above – do not lead to the control elements switching off.
Fig. 16: Test signal for the
OSSD switching output for
cross-circuit monitoring
250 µs
OSSD
green (24 V)
red (0 V)
....
14 ms
Signal output
green (24 V)
....
red (0 V)
Notes
The signal output
is not monitored
works like the OSSD switching output
is to facilitate the 2-channel integration in order to give an off signal to the PLC, in case
the OSSD develops a fault (e.g. short circuit).
Important note:
The test input must be connected to +24 V, for the sender to transmit light pulses.
8010478/TA96/2009-12-03
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
21
Electrical installation
Chapter 5
Operating Instructions
TGS
Fig. 17 and Fig. 18 show sample circuits in connection with a PLC. The PLC must perform
the following tasks:
The switching output (OSSD) sent by the receiver into the PLC must, at the output of the
PLC, again be monitored in a failsafe way. Otherwise, for instance, a fault at the output
of the PLC would not be recognised.
2
7
4
5
1
3
6
2
SPS
7
4
6
Sel 1
OS SD
5
1
Sel 2
g
PE
0 V
24 V
Sel 2
Sel 1
Test
PE
0 V
24 V
p
Meldea.
Fig. 17: Connection diagram
for monitoring the output
using the signal output
3
Evaluation
FSD
The PLC must perform the following tasks:
If there is a sensor fault, the signal output gives a signal (LOW) to the
PLC. The PLC must stop the machine.
The PLC must, simultaneously, monitor the FSD (output of the PLC) at
regular intervals (testable) in order to, for example, detect a fault in the
output of the PLC.
5.2
External testing
If the 2-channel connection is not possible, the unit shall be cyclically tested (external
test). The generation of the test signal and the checking of the OSSD state is then
performed by an evaluation circuit (Fig. 18), which switches the sender off and then on
again and in doing so, checks the switching on and off of the receiver.
In this test, device faults must be recognised by the master control.
If the system test takes longer than 150 ms, the restart lock of the master evaluation
circuit must be activated (Fig. 19). If the system test takes less than 150 ms, the restart
lock does not need to be activated. The testing must be performed in a non-dangerous
state of the machine.
If the test is unsuccessful (OSSD at the receiver does not respond), the PLC must be
guaranteed to effect switch-off. In this case, the signalling output does not need to be
wired.
22
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Electrical installation
Chapter 5
TGS
2
7
4
5
1
Sel 2
Sel 1
PE
0V
24 V
Fig. 18: Wiring the test input.
Contact closed: sender
transmits, contact open:
sender does not transmit
3
6
+ 24 V
2
7
4
5
3
Test
2
SPS
7
4
5
6
1
Sel 2
Sel 1
Meldea.
PE
OSSD
24 V
6
0 V
Sel 1
1
Sel 2
Test
PE
0 V
24 V
Fig. 19: Connection diagram
for external testing
3
Evaluation
FSD
Test cycle:
When triggering a test pulse to the sender through the machine control,
the output of the PLC switches off. This switch-off is only cancelled again
when the evaluation (PLC) detects a response at the OSSD of the
receiver.
During the test cycle, the PLC must simultaneously monitor the FSD of
the PLC (e.g. detecting a fault at the output of the PLC).
8010478/TA96/2009-12-03
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
23
Chapter 5
Electrical installation
Operating Instructions
TGS
5.3
Setting the beam coding
The coding of the TGS can be adjusted at the terminal block of the machine control. Thus,
the pre-set coding is always retained when units are exchanged:
Sel1
0V
0V
Adresse
Coding 1
24 V
0V
Coding 2
0V
24 V
Coding 3
24 V
24 V
invalid
1)
24
Sel 2
1)
The receiver switches to lockout mode. The condition can be rectified by correct configuration and switching
the power off and on again.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Maintenance
Operating Instructions
Chapter 6
TGS
6
Maintenance
The TGS testable safety light curtain requires no operational maintenance. The front
screen should be cleaned regularly and if dirty.
Do not use any aggressive cleaning agents
Do not use any abrasive cleaning agents
Note
Static charges cause dust particles to be attracted to the front screen. You can prevent
this effect by using the antistatic plastic cleaner (SICK part number 5600006) and the
SICK lens cloth (part number 4003353).
How to clean the front screen and/or the additional front screen (accessories):
Use a clean and soft brush to remove dust from the front screen.
Now wipe the front screen with a clean and damp cloth.
Note
8010478/TA96/2009-12-03
After cleaning, check the position of sender and receiver to ensure that the protective
device cannot be bypassed (reaching over, reaching under or standing behind).
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
25
Technical Data
Chapter 7
Operating Instructions
TGS
7
Technical Data
7.1
Overview of technical specifications
Tab. 1: Data sheet TGS
min.
typ.
max.
General system data
Protective field height
(type-dependent)
150 mm
1050 mm
Protective field width
0.3 m
6m
Resolution (type-dependent)
20, 30, 40 mm
Wave length of the sender
880 nm
Protection class
III
Enclosure rating
IP 54
Operating mode
Supply voltage US
Ripple
Guard only without start and restart inhibit
1)
19.2 V
24 V
2.4 VSS
Synchronization
Optical, without separate synchronization between
sender and receiver
Type
Type 2 (EN 6 1496-1)
Category
Category 2 (EN ISO 13 849)
3)
Category 2 (EN 954-1)
Test rate
4)
0.55 1/s (internal test, every 1.8 s)
Maximum demand rate
Performance Level
5)
6)
Safety integrity level
> 3 min
7)
PL d (EN ISO 13 849)
8)
SIL 2 (IEC 61 508)
SILCL 2 (EN 62 061)
-8
PFHd (mean probability of a
dangerous failure per hour)
5.3 x 10 1/h
TM (mission time)
20 years (EN ISO 13 849)
On-transition time OSSD after
applying the supply voltage of
sender and receiver (light path
clear)
1)
2)
3)
4)
5)
6)
7)
8)
26
28.8 V
2)
3s
The external voltage supply must, in accordance with EN 60 204, bridge a short-term supply failure of 20 ms.
Suitable power supplies are available from SICK, as accessories.
The voltage must not exceed or fall below the limit values.
Only valid for the assumption of conformity until 28.12.2009. From then on it will only be allowed to use the
successor EN ISO 13 849-1:2006.
Internal test. If an external test is performed, the test rate must not be exceeded.
Between two demands for a safety-related reaction from the device, at least 100 internal or external tests
must be performed.
For detailed information on the exact design of your machine/system, please contact your local SICK
representative.
Pay attention to optical characteristics! More information at www.sick-safetyplus.com/Safety Know-how
For detailed information on the exact design of your machine/system, please contact your local SICK
representative.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Technical Data
Chapter 7
TGS
min.
typ.
max.
Sender unit
Test input
Input resistance (HIGH)
5 kY (at 0 V)
Sender, inactive (Test)
0V
12 V
Sender, active
17 V
28.8 V
Reaction time on test
1)
37 ms
Power consumption
3W
Receiver unit
Supply connections
OSSD
2 PNP semiconductors, active monitored, short2)
circuit protected (2.2 kY against 0 V in unit)
Signal output
PNP semiconductor, short-circuit protected
(2.2 kY against 0 V in unit)
2)
OSSD and signal output:
Switching voltage HIGH active (Ueff) UV – 2.25 V
UV
Switching voltage LOW
5V
0V
Switching current
Leakage current
20 mA
3)
< 40 µA
Load capacity
Test impulse data
3 nF
4)
Test impulse width
240 µs
250 µs
260 µs
Test impulse rate
(type-dependent)
9.5 ms
14 ms
18.5 ms
Permissible cable resistance
5)
between unit and load
Response time, type-dependent
(see table)
On-transition times after light
beam interruption
100
7.5 ms
18 ms
2x
response time
Power consumption
6)
200 ms
5W
Voltage in DC • Reference point for measured values: equipment plug
1)
2)
3)
4)
5)
6)
8010478/TA96/2009-12-03
The time is rated from the activation of the test input to switching off the OSSD output
Applies for voltages between UV and 0 V (2.2 kY against 0 V in the device)
In the case of an error (interruption of the 0 V cable) the outputs behave like a resistor > 480 kY against UV.
The downstream control element must identify this state as LOW.
In the active state, the outputs are tested in a cycle (switch LOW briefly). When selecting the downstream
control elements ensure that the test impulses with the parameters listed above do not lead to a shutdown.
The individual conductor resistor to the downstream control element must be limited to this value so that a
crossed connection between the outputs can be identified. (EN 60 204 Electrical Equip. of Machines, Part 1:
General Requirements must be observed.)
This value applies if the synchronization beam is interrupted (1st beam below the connector).
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
27
Technical Data
Chapter 7
Operating Instructions
TGS
min.
typ.
max.
Operating data
Connection
Device plug M12, 7-pin
Ambient operating temperature
0 °C
+55 °C
Air humidity (non-condensing)
15 %
95 %
Storage temperature
–20 °C
+70 °C
Housing cross section
28.5 mm x 31.5 mm
Vibration resistance
1)
Shock resistance
10 g, 16 ms as per IEC 68-2-29
Response times
Tab. 2: Response time of the
OSSD in ms (response time
of the signal output is 50 %
greater)
Protective field height
1)
28
Resolution
[mm]
20 mm
30 mm
40 mm
Response time
in ms
in ms
in ms
150
10
8
7.5
300
10
8.5
8.5
450
14
8.5
10
600
18
10.5
9.5
750
–
12.5
9
900
–
15
10
1050
–
17
17
The TGS is specially matched to the vibration requirements of weaving machines. Due to special assembly
technology,the TGS is designed for up to 600 mm protection field height, for the following maximum vibration
values at the sensor:
10 ... 200 Hz ± 20 g
200 ... 400 Hz ± 15 g
The following applies to protection field heights over 600 mm: 5 g, 10 ... 55 Hz to IEC 68-2-6, higher values on
request.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Technical Data
Chapter 7
TGS
7.2
Dimensional Drawings
Fig. 20: TGS dimensional
drawings
16.5
L 2
L 1
43.7
12
17.3
Housing
length
L1 (mm)
14
31.5
6
10.5
2.2
28.5
1
3.5
8010478/TA96/2009-12-03
216
366
516
666
816
966
1116
Protection field
height
L2 (mm)
150
300
450
600
750
900
1050
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
29
Ordering information
Chapter 8
Operating Instructions
TGS
8
Ordering information
8.1
Tab. 3:TGS selection table
TGS selection table
Resolution 20 mm
Protection field
Sender
Part number
Receiver
Part number
150 mm
TGSS 15-111111
1016353
TGSE 15-111111
1016354
300 mm
TGSS 30-111111
1016280
TGSE 30-111111
1016281
450 mm
TGSS 45-111111
1016319
TGSE 45-111111
1016320
Protection field
height
Sender
Part number
Receiver
Part number
150 mm
TGSS 15-121111
1016355
TGSE 15-121111
1016356
300 mm
TGSS 30-121111
1016229
TGSE 30-121111
1016230
450 mm
TGSS 45-121111
1016231
TGSE 45-121111
1016232
600 mm
TGSS 60-121111
1016408
TGSE 60-121111
1016409
Protection field
height
Sender
Part number
Receiver
Part number
150 mm
TGSS 15-131111
1017804
TGSE 15-131111
1017805
300 mm
TGSS 30-131111
1016795
TGSE 30-131111
1016796
Protection field
height
Sender
Part number
Receiver
Part number
300 mm
TGSS-S0 1
1018357
TGSE-S0 1
1018358
450 mm
TGSS 45-161511
1018572
TGSE 45-161511
1018573
450 mm
TGSS 45-161111
1015704
TGSE 45-161111
1015705
height
Resolution 30 mm
Resolution 40 mm
Special solution
30
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Ordering information
Chapter 8
TGS
8.2
Tab. 4: Ordering information,
accessories
8010478/TA96/2009-12-03
Ordering information, accessories
Item
Part number
Cable receptacle M12, 8-pin, straight
with 2.5 m cable length
with 5.0 m cable length
with 7.5 m cable length
with 10 m cable length
with 15 m cable length
6020537
6020354
6020353
6020352
6020872
Cable receptacle M12, 8-pin, angled
with 5 m cable length
with 15 m cable length
6021343
6021342
Relay module
with screw terminals
with spring terminals
without terminals
1019772
2019771
6020342
Mounting
Sliding claw brackets (1 piece)
Sliding nuts for side bracket (4 pieces)
4031411
2017750
Other accessories
Power supply 24 V, 2,1 A, 100/240 V AC, 50 W
Power supply 24 V, 3,9 A, 120/240 V AC, 95 W
7028789
7028790
Test rod with diameter corresponding
to the physical resolution of the safety light curtain
Resolution 20 mm
Resolution 30 mm
Resolution 40 mm
2022600
2022602
2022604
Operating instructions for TGS on CD-ROM
2026782
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
31
Appendix
Chapter 9
Operating Instructions
TGS
9
Appendix
9.1
32
EC declaration of conformity
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Appendix
Operating Instructions
Chapter 9
TGS
Note
8010478/TA96/2009-12-03
You can obtain the complete EC declaration of conformity via the SICK homepage on the
Internet at: www.sick.com
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
33
Chapter 9
Appendix
Operating Instructions
TGS
9.2
Checklist for the manufacturer
Checklist for the manufacturer/installer for the installation of electro-sensitive protective equipment (ESPE)
The details on the items listed below must be available at least during initial commissioning, depending, however, on
the respective application, the requirements of which must be reviewed by the manufacturer/installer.
This checklist should be retained and kept with the machine documentation to serve as reference during recurring
tests.
1. Have the safety rules and regulations been observed in compliance with the
directives/standards applicable to the machine?
Yes
No
2. Are the applied directives and standards listed in the declaration of conformity?
Yes
No
3. Does the protective device comply with the required category according to
1)
EN 954\1 /EN ISO 13 849\1?
Yes
No
4. Is the access to the hazardous area/hazardous point only possible through the protective field
of the ESPE?
Yes
No
5. Have appropriate measures been taken to prevent (mechanical protection) or monitor
unprotected presence in the hazardous area when protecting a hazardous area/hazardous point
and have these been secured against removal?
Yes
No
6. Are additional mechanical protective measures fitted and secured against manipulation which
prevent climbing over or crawling beneath the ESPE?
Yes
No
7. Has the maximum stopping and/or stopping/run-down time of the machine been measured and
has it been entered and documented (at the machine and/or in the machine documentation)?
Yes
No
8. Has the ESPE been mounted such that the required safety distance from the nearest hazardous
point has been achieved?
Yes
No
9. Are the ESPE devices correctly mounted and secured against manipulation after adjustment?
Yes
No
10. Are the required protective measures against electric shock in effect (protection class)?
Yes
No
11. Is the control switch for resetting the protective device (ESPE) or restarting the machine present
and correctly installed?
Yes
No
12. Are the outputs of the ESPE (OSSDs) integrated in compliance with the required category
1)
according to EN 954 /EN ISO 13 849\1 and does the integration comply with the circuit
diagrams?
Yes
No
13. Has the protective function been checked in compliance with the test notes of this
documentation?
Yes
No
14. Are the given protective functions effective at every setting of the operating mode selector
switch?
Yes
No
15. Are the switching elements activated by the ESPE, e.g. contactors, valves, monitored?
Yes
No
16. Is the ESPE effective over the entire period of the dangerous state?
Yes
No
17. Once initiated, will a dangerous state be stopped when switching the ESPE on or off and when
changing the operating mode, or when switching to another protective device?
Yes
No
18. Has the information label for the daily check been attached so that it is easily visible for the
operator?
Yes
No
This checklist does not replace the initial commissioning, nor the regular inspection by qualified safety personnel.
1)
34
Only valid for the assumption of conformity until 28.12.2009. From then on it will only be allowed to use the
successor EN ISO 13 849\1.
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
8010478/TA96/2009-12-03
Operating Instructions
Appendix
Chapter 9
TGS
9.3
List of tables
Tab. 1:
Data sheet TGS........................................................................................................26
Tab. 2:
Response time of the OSSD in ms (response time of the signal output is
50 % greater) ...........................................................................................................28
Tab. 3:
TGS selection table..................................................................................................30
Tab. 4:
Ordering information, accessories..........................................................................31
9.4
8010478/TA96/2009-12-03
List of illustrations
Fig. 1:
The criteria for a TGS Safety Light Curtain ...............................................................7
Fig. 2:
The mounting position must prevent the following: reaching over, under,
around and stepping behind.....................................................................................7
Fig. 3:
Daily check using the test rod...................................................................................9
Fig. 4:
Features of the TGS safety light curtain.................................................................11
Fig. 5:
LED indication..........................................................................................................12
Fig. 6:
Error display sender unit .........................................................................................13
Fig. 7:
Error display receiver unit .......................................................................................13
Fig. 8:
Hazardous point safeguarding on a weaving machine with TGS safety light
curtain ......................................................................................................................14
Fig. 9:
Application with weaving machines: no mutual interference through beam
coding.......................................................................................................................14
Fig. 10:
TGS, safety distance to danger zone......................................................................16
Fig. 11:
Minimum distance to reflective surfaces...............................................................17
Fig. 12:
Distance a depending on scanning range [RW].....................................................17
Fig. 13:
TGS mounting direction...........................................................................................18
Fig. 14:
Mechanical mounting options for TGS Testable Safety Light Curtains ................19
Fig. 15:
Unit plug pin out ......................................................................................................20
Fig. 16:
Test signal for the OSSD switching output for cross-circuit monitoring ...............21
Fig. 17:
Connection diagram for monitoring the output using the signal output ..............22
Fig. 18:
Wiring the test input. Contact closed: sender transmits, contact open:
sender does not transmit........................................................................................23
Fig. 19:
Connection diagram for external testing................................................................23
Fig. 20:
TGS dimensional drawings......................................................................................29
© SICK AG • Industrial Safety Systems • Germany • All Rights reserved
35
8010478/TA96/2009-12-03 ∙ GO/XX ∙ Printed in Germany (2009-12) ∙ Subject to change without notice ∙ The specified product features and technical data do not represent any guarantee ∙ A4 sw int34
Australia
Phone +61 3 9497 4100
1800 33 48 02 – tollfree
E-Mail sales@sick.com.au
Belgium/Luxembourg
Phone +32 (0)2 466 55 66
E-Mail info@sick.be
Brasil
Phone +55 11 3215-4900
E-Mail sac@sick.com.br
Ceská Republika
Phone +420 2 57 91 18 50
E-Mail sick@sick.cz
China
Phone +852-2763 6966
E-Mail ghk@sick.com.hk
Danmark
Phone +45 45 82 64 00
E-Mail sick@sick.dk
Deutschland
Phone +49 211 5301-301
E-Mail kundenservice@sick.de
España
Phone +34 93 480 31 00
E-Mail info@sick.es
France
Phone +33 1 64 62 35 00
E-Mail info@sick.fr
Great Britain
Phone +44 (0)1727 831121
E-Mail info@sick.co.uk
India
Phone +91–22–4033 8333
E-Mail info@sick-india.com
Israel
Phone +972-4-999-0590
E-Mail info@sick-sensors.com
Italia
Phone +39 02 27 43 41
E-Mail info@sick.it
Japan
Phone +81 (0)3 3358 1341
E-Mail support@sick.jp
Österreich
Phone +43 (0)22 36 62 28 8-0
E-Mail office@sick.at
Polska
Phone +48 22 837 40 50
E-Mail info@sick.pl
Republic of Korea
Phone +82-2 786 6321/4
E-Mail kang@sickkorea.net
Republika Slovenija
Phone +386 (0)1-47 69 990
E-Mail office@sick.si
România
Phone +40 356 171 120
E-Mail office@sick.ro
Russia
Phone +7 495 775 05 34
E-Mail info@sick-automation.ru
Schweiz
Phone +41 41 619 29 39
E-Mail contact@sick.ch
Singapore
Phone +65 6744 3732
E-Mail admin@sicksgp.com.sg
Suomi
Phone +358-9-25 15 800
E-Mail sick@sick.fi
Sverige
Phone +46 10 110 10 00
E-Mail info@sick.se
Taiwan
Phone +886 2 2375-6288
E-Mail sales@sick.com.tw
Türkiye
Phone +90 216 587 74 00
E-Mail info@sick.com.tr
United Arab Emirates
Phone +971 4 8865 878
E-Mail info@sick.ae
USA/Canada/México
Phone +1(952) 941-6780
1 800-325-7425 – tollfree
E-Mail info@sickusa.com
Nederlands
Phone +31 (0)30 229 25 44
E-Mail info@sick.nl
Norge
Phone +47 67 81 50 00
E-Mail austefjord@sick.no
SICK AG | Waldkirch | Germany | www.sick.com
More representatives and agencies
in all major industrial nations at
www.sick.com
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement