Fiessler TLCT User manual
BG
Approved
UL
R
LISTED
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Type 2 safety light curtains
TLCT
ILCT
CONTENTS:
Safety notes
Application notes
Assembly
Electrical connections
Commissioning
Technical data
Accessories
FIESSLER
E L E K T R O N I K
Fiessler Elektronik Kastellstr. 9
D 73734 Esslingen
Table of Contents
Operating manual
translation
- Safety category 2
(EN 954-1 and IEC 61496 Part1 + Part2 or EN 61496)
- Deployable to SIL 1 (EN 61508)
- Performance Level PL c (ISO 13849-1)
BA - TLCT_ILCT_GB Dok 1129 Stand 23.4.2013 / RK / Aui
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2
Laser scanners Single-beam safety light
barriers with a long range
(up to 150 m)
Press brake protection sy-
stem AKAS®
Footmats
Differentiation between
humans and machines by
muting function
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9
D-73734 Esslingen
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Fax: ++49(0)711-91 96 97-50
E-Mail: [email protected]
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Represented in all major countries
Roboter
MUTINGLAMPE
Palette
Three- or more beam light
grids with a range of up to
60 m
Two-beam light grids with
transmitter / receiver units
and a deflecting mirror with
a range of up to 10 m
Output muting
Differentiation between
humans and material
Two-beam light grids with a
range of up to 60 m
Cross-muting
Differentiation between
humans and material /
machines
Roboter
MUTINGLAMPE
Palette
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
BA - TLCT / ICT_1129 Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Table of Contents
We also invest in environmental safety
Chapter Contents Page
1System Description and Technical Data 4
1.1 Features and areas of application 4
1.2 Design and function 5
1.3 Overview: Protective field height, lengths, ranges, resolutions and beam count 5
1.4 LEDs and displays / Display on interruption of a light beam 6
1.5 Indication and change of operating mode /preset operating mode 7
1.6 Fault diagnosis 8
1.7 Technical data 9
1.8 Dimensions 10
2Assembly 11
2.1 Reaction times 11
2.2 Safety clearances to hazard zones 12-13
2.3 Installation conditions 14-16
2.4 Mounting and adjustment 17
Swivel mounting 17-19
Optional mountings 20
Multi-sided safeguarding via deflecting mirrors – optional 21
3Electrical connection 22
3.1 Receiver's connecting plug 22
3.2 Connection with restart interlock / with contactor control 22
3.3 Connection without restart interlock / without contactor control 22
3.4 Transmitter's connecting plug 22
4Safety notes 23
5Auxiliary functions with safety switchgear 24
6Blanking functions only for ILCT 25-29
7Cascaded light grids only for …LCT-K 30-34
8Definition of terms 35-36
9Accessories and spare parts 37
10 Order codes 38
11 Service / Maintenance / Warranty 39
3
Table of Contents
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
BA - TLCT / ICT_1129
4
Fig. 4/1: Safeguarding of hazard zones Fig. 4/2: Barricading of sectors
1System description 1.1 Features and areas of application
Fig. 4/3: Barricading of access areas by means of
deflecting mirrors
Fig. 4/4: Safeguarding of hazard zones
Areas of application:
Safeguarding of hazard zones
Barricading of sectors
Protection of fingers and hands, e.g. when operating:
- Presses for wood, wood working machines
- Packaging machines
- Textile Machinery
- Injection moulding machines
- Round-stroke engines (revolving machines)
- storing and materials-handling technology
- Automatic placement machines
- Palleting machines
Mirrors can be used to deflect a protective field around
hazard zones, permitting creation of multi-sided barricades.
Optional safety switchgears permit muting and clocked
operation (refer to Chapter 5).
Features:
- Safety category 2 (EN 954-1 and IEC 61496 Part1 + Part2 or
EN 61496);
deployable to SIL 1 (EN 61508)
Performance Level PL c (ISO 13849-1)
- User-friendly self-testing: required no external cyclic
system test.
- Contactor control and restart interlock
Integrated functions can be programmed without a PC
- Directly controllable contactors / valves
Switching capacity: 0.5 A / 24 V
- Beam spacing: 8.33 mm, 25 mm (resolution: 14 mm, 30 mm)
- Protective field widths (range): 5 m
- Protective field heights: 100 mm - 1500 mm
- Short reaction times: 4 ms to 29 ms depending on the
length; correspondingly short safety clearances
- Semiconductor outputs with short-circuit and cross-
connection monitoring
-11 different blanking patterns (ILCT only). Blanking of ob-
stacles with reliable safety.
- cascading: for protecting a hazardous area on more than
one side, up to three light curtains may be connected in
series.
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Table of Contents
BA - TLCT / ICT_1129
5
Design and function
TLCT/ILCT safety light curtains each comprise two
components: Light transmitter and light receiver.
The clearance between these two components and the
installation height determine the width and height of the
protective field
(Figure 5/1).
Modular design permits realization of protective field
heights ranging from 100 mm to 1500 mm in 100-mm
steps.
The transmitter generates infrared light beams in rapid
pulses. These parallel light beams are analyzed by two
single-chip controllers in the transmitter. The beam
spacing determines the resolution (refer to Table 5/2).
If an object enters the protective field, i.e. if at least one
light beam is interrupted, the receiver's two outputs stop
the machine or prevent it from starting, thus avoiding
hazards.
In the restart with interlock operating mode, the machine
can only be restarted by means of the start button once
the protective field has been cleared again.
User-friendly self-testing: The customary testable category 2 light curtains required a external cyclic system test.
With TLCT light curtains this is no longer necessary, because a continuous internal self-testing is active.
Protective field heights, lengths, ranges, resolutions and beam count
1System description 1.2 Design and function / 1.3 Overview table
Test bar diameter = Size of obstruction
Protective
field height
(mm)
Length
L (mm)
Beam count
Beam count
100
200
161
261
12
24
4
8
300
400
500
361
461
36
48
561 60
12
16
20
600
700
800
900
661
761
72
84
861
961
96
108
1000
1100
1200
1300
1061
1161
120
132
1261
1361
144
156
24
28
32
36
40
44
48
52
1400
1500
1461
1561
168
180
56
60
Table 5/2: Overview of standard light grids
Finger protection
Resolution:
14 mm
Hand protection
Resolution: 30 mm
Range: 5 m
Range
5 m
Overview
table
Length L
Fig. 5/1: The transmitter and receiver together generate a protective field.
Protective field height
Protective field width
Table of Contents
FIESSLER
E L E K T R O N I K
TLCT / ILCT
TLCT
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
BA - TLCT / ICT_1129
6
LEDs and displays
1System description 1.4 LEDs and displays
Outputs (OSSDs) active ................ green LED comes on when the outputs are energized.
Outputs (OSSDs) inactive .............. red LED comes on when the outputs are de-energized.
- Indication of operating mode ...... for about 2 seconds during power-on.
- Indication of the uppermost ........ see below
interrupted light
- Error diagnosis ............................ refer to the chapter on error diagnosis
Adjustment aid and light reserves .. red LED comes on when light reserves have dropped.
Restart interlock ............................ in the operating mode with restart interlock, the yellow
LED comes on when the protective field is clear and
the start button is ready for operation.
The LEDs and display on the receiver indicate the current operating status.
Display on interruption of a light beam
If one or more light beams are interrupted, the number of the
uppermost interrupted beam (as seen from the connecting plug) is
displayed.
On light grids comprising more than 99 light beams, the right-hand
decimal point also shines if the 122nd beam is interrupted, for
instance. If a light beam numbered higher than 200 is interrupted,
both decimal points shine.
If the synchronous eye is interrupted (1st light beam as seen from
the connecting plug), "0 0" flashes on the display.
23rd light beam is
interrupted.
122nd light beam is
interrupted.
1st light beam is
interrupted.
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
BA - TLCT / Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Table of Contents
BA - TLCT / ICT_1129
7
1System description 1.5 Indication and change of operating mode
Changing the operating mode
To change the operating mode you have to disconnect the power supply. Then bridge the OSSD2 (6) output with
+UB (2) input and connect a button between the Start (1) input and +UB (2) input .
6 / pink: OSSD2 2 / brown: +UB
1 / white: Start
The button at the Start input must be actuated during power-on.
"L L" flashes on the display.
The button at the Start input must remains on (min. 2s),until the actual
operating mode from the device flashes on the display. You can then
release the button.
To select a new operating mode, briefly press the button once again; the
selected mode flashes on the display. Each time you shortly press the
button, the next operating mode is called up.
If you hold down the button for 2 seconds or longer, the currently displayed
operating mode is saved and remains solidly lit on the display.
This procedure (brief actuation of the button) can be repeated as often as necessary. After you
have removed the bridge between OSSD2 and +UB and reset the voltage, the saved operating
mode becomes effective.
Indication of operating mode
The stored operating mode is indicated for about 2 seconds during power-on.
"E A" = with EDM (contactor control) / with restart interlock (setting on delivery)
"E -" = with EDM (contactor control) / without restart interlock
"- A" = without EDM (contactor control) / with restart interlock
"- -" = without EDM (contactor control) / without restart interlock
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
BA - TLCT / Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Table of Contents
BA - TLCT / ICT_1129
8
1System description 1.6 Fault diagnosis
Fault diagnosis
If the light grid detects a faulty connection or an internal error, the adjustment-aid and restart-interlock LEDs
flash together with the corresponding error code on the display.
F1 = Incorrect start line
Operating mode with restart interlock: Start input is bridged to +24 VDC.
Operating mode without restart interlock: Bridge from start input to +24 VDC is missing.
F2 = Incorrect EDM line
Operating mode with EDM: The contactors are not released or
the EDM input is bridged to +24 VDC.
Operating mode without EDM: Bridge from EDM input to +24 VDC is missing.
F3 = External transmitter detected
A second light transmitter has been detected in the receiver's range. To preclude mutual
interference between adjacent light curtains, neighbouring systems must be installed in
accordance with the instructions on Page 16.
F4 = Error during change of operating mode
The start button was held down too briefly for changing the operating mode during
power-on. Or the bridge from OSSD2 to +24 VDC was detached during a change of
operating mode (refer to the section on changing operating modes on Page 7).
F5 = Internal error
Power-on the device once again. If F5 is still displayed, an internal error has occurred.
In this case, the device must be sent in for repair.
No start possible despite clear light path (display off):
In the operating mode with restart interlock, if the yellow LED does not shine despite intact
light beams and the adjustment aid LED is off, it means that the contactors are not released.
Flashing:
1st light beam is interrupted.
Not flashing:
No blanking (only for ILCT)
FIESSLER
E L E K T R O N I K
F6 = OSSD error
Short-circuit between one or both OSSDs and +24V, or between the OSSDs.
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Table of Contents
BA - TLCT / ICT_1129
9
1System description 1.7 Technical data
Technical data
Characteristic data TLCTQ/ ILCTQ
Safety category
Protective field height
Type 2 according to EN 954-1 and IEC 61496 Part 1 + Part 2 or EN 61496 Part 1 + Part 2;
deployable to SIL 1 (EN 61508)1; category 2 PL c (ISO 13849-1)1
100 mm … 1500 mm
Protective field width
(max. range)
Resolution
Reaction time
Self-diagnosis
0 … 5 m
Smallest detectable obstruction size of 14 mm or 30 mm
4 ms to 29 ms depending on the length and type; correspondingly short safety clearances
Microcontroller monitoring of safety functions (self-monitoring)
7-segment fault display
Operating modes
(programmable without
a PC, Page 7)
Mechanical data
Mountings
Housing design
- With / without restart interlock
- With / without contactor control (EDM)
- Pivot-joint holder on the light barrier's upper and lower sides for fine adjustment
- Movable shackles with adjustment screws on the housing's rear (optional)
- Flexible T-slot (optional)
Aluminium profile, 25 x 35 mm, plastic coating, RAL 1021 (yellow).
End-pieces comprise acid-resistant plastic (polyamide) reinforced with glass beads.
Plexiglass for light entry and exit.
Operating data
Protection type
Protection class
IP 65
III
Ambient operating
temperature
Storage temperature
-10 to 50 °C
-25 to 70 °C
Electrical data Transmitter TLCT-S / ILCT-S Receiver TLCT-E / ILCT-E
Supply voltage2
Current consumption
24 V DC + 20 % - 15 % SELF, PELF
Max. 250 mA
24 V DC ± 20% SELF, PELF
Max. 250 mA (without load)
Outputs
Inputs
Electrical connection
-
-
OSSD 1 and 2: Fail-safe PNP outputs with short-circuit and
cross-connection monitoring.
Output current: min. 0 mA: max. 0.5 A
Max. output current in the inactive state: 50 µA
Max. voltage in the inactive state: 0.9 V
Max. capacitive load: 1 µF
Contactor control (EDM) and start button
0 V to 24 V DC ± 20 %, max. 5 mA
M12 plug connector, 4-pole
M12 plug connector, 8-pole
Table of Contents
1Contact us directly for details on how to precisely tailor systems to your requirements.
2The external voltage supply must be capable of bridging brief mains failures of up to 20 ms according to EN 60 204-1.
We offer suitable power supply units as accessories.
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
BA - TLCT / ICT_1129
Light curtain dimensions
10
1System description 1.8 Light curtain dimensions
Table of Contents
Housing design:
Aluminium profile, plastic-coated RAL 1021,
yellow end-pieces comprising acid-resistant plastic
(polyamide) reinforced with glass beads.
Plexiglass for light entry and exit.
Mounting:
Swivel holder
or optional, movable shackles on the rear of the
housing
25,5 mm ± 0,5
34,5 mm ± 0,3
Length
Protective field
height (mm)
Length
(mm)
Mounting distance
BFA (mm)
100
200
162
262
200
300
300
400
500
600
362
462
400
500
562
662
600
700
700
800
900
1000
762
862
800
900
962
1062
1000
1100
1100
1200
1300
1400
1162
1262
1200
1300
1362
1462
1400
1500
1500 1562 1600
16,5 mm
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Mounting distance BFA
BA - TLCT / ICT_1129
Reaction time
The time which elapses between penetration of the protective field and deactivation.
In the case of the TLCT / ILCT light grids, the protective mechanism's reaction time t1 depends on the beam count.
11
TLCT / 14 mm resolution
2Assembly 2.1 Reaction times
Table of Contents
Type Reaction time (ms)
PLSG 1K (muting controller)
PLSG 2K (muting controller)
3,5
3,5
PLSG 3K (muting and universal controller)
ULSG (switching device)
BPSG (ILCT programming and switching device)
3,5
6
6
Optional safety switchgear
Examples
Reaction time (ms)
Main sensor
TLCTK 800/12
Secondary sensor 1
TLCTK 500/20
9 ms
Intrinsic reaction time + 3 ms
6 ms + 3 ms = 9 ms
Secondary sensor 2
TLCT 800/32
Intrinsic reaction time + 6 ms
12 ms + 6 ms = 18 ms
Cascaded light grid
System
Protective field
height (mm)
Beam count
Reaction time
(ms)
TLCT 100/12
TLCT 200/24
100
200
12
24
5
6
TLCT 300/36
TLCT 400/48
TLCT 500/60
TLCT 600/72
300
400
36
48
500
600
60
72
7
8
9
10
TLCT 700/84
TLCT 800/96
TLCT 900/108
TLCT 1000/120
700
800
84
96
900
1000
108
120
TLCT 1100/132
TLCT 1200/144
TLCT 1300/156
TLCT 1400/168
1100
1200
132
144
1300
1400
156
168
11
12
13
14
15
17
18
19
TLCT 1500/180 1500 180 20
System
Protective field
height (mm)
Beam count
Reaction time
(ms)
ILCT 100/12
ILCT 200/24
100
200
12
24
7
9
ILCT 300/36
ILCT 400/48
ILCT 500/60
ILCT 600/72
300
400
36
48
500
600
60
72
10
12
14
15
ILCT 700/84
ILCT 800/96
ILCT 900/108
ILCT 1000/120
700
800
84
96
900
1000
108
120
ILCT 1100/132
ILCT 1200/144
ILCT 1300/156
ILCT 1400/168
1100
1200
132
144
1300
1400
156
168
16
18
20
21
22
24
25
27
ILCT 1500/180 1500 180 29
ILCT / 14 mm resolution
FIESSLER
E L E K T R O N I K
TLCT / 30 mm resolution
System
Protective field
height (mm)
Beam count
Reaction time
(ms)
TLCT 100/4
TLCT 200/8
100
200
4
8
4
5
TLCT 300/12
TLCT 400/16
TLCT 500/20
TLCT 600/24
300
400
12
16
500
600
20
24
5
6
6
7
TLCT 700/28
TLCT 800/32
TLCT 900/36
TLCT 1000/40
700
800
28
32
900
1000
36
40
TLCT 1100/44
TLCT 1200/48
TLCT 1300/52
TLCT 1400/56
1100
1200
44
48
1300
1400
52
56
7
7
8
8
8
9
9
10
TLCT 1500/60 1500 60 10
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
BA - TLCT / ICT_1129
Safety clearance to hazard zones (EN 999 / ISO 13855)
Vertical safeguarding of hazard zones with light curtains
(valid to a resolution of 40 mm)
The safety clearance S is calculated as follows:
K = Gripping or approach speed
The gripping speed K is assumed as being 2000 mm/s. If a value of more
than 500 mm is calculated for S, the calculation can be repeated with
1600 mm/s provided that the result for S here is at least 500.
(S min ≥100 mm)
T = t1 + t2
t1 = Protective mechanism's reaction time
In the case of the TLCT / ILCT light curtains, the protective mechanism's
reaction time t1 depends on the beam count (see the table on Page 11).
If optional safety switching devices are used, the the reaction times stated stated next are added to the reaction time t1:
PLSG: 3,5 ms
ULSG / BPSG: 6 ms.
t2 = Machine's run-on time
The machine's run-on time t2 must be specified by the manufacturer.
C = 8 (d -14 mm)
d = Protective mechanism's resolution (minimum detectable obstruction size).
The resolution d is stated in the type plate of the TLCT light curtain.
At d = 14 mm, C = 0 mm
At d = 30 mm, C = 128 mm
Sample calculations of safety clearance: Valid to a resolution of 40 mm
Example 1:
Safety light curtain TLCT100/12
- Reaction time 5 ms,
- Resolution d = 14 mm,
- Machine run-on time t2 = 75 ms
Example 2:
Safety light curtain TLCT500/20
- Reaction time 6 ms,
- Resolution d = 30 mm,
- ULSG reaction time = 6 ms
- Machine run-on time t2 = 75 ms
12
2Assembly 2.2 Safety clearance
S = (K x T) + C
At S = 100 mm to 500 mm:
At S > 500 mm:
S = (2000 mm / s .T) + C
S = (1600 mm / s .T) + C
The clearance S between the safety light curtain and the hazard zones must be large enough to stop the machine
before any of its components can reach a hazard zone following penetration of the protective field.
Additional mechanical barriers and light curtains must be installed to prevent access over, under, around and behind
the protective field. In this context, also refer to EN 999 / ISO 13855 and other relevant national / international safety
regulations.
S
Nachlaufweg
der Maschine
Fig. 12/1 Vertical safeguarding of hazard zones
Table of Contents
S = 2000 mm/ s x (0,075 s +0,005 s)
S =160 mm
S = 2000 mm/ s x (0,075 s + 0,006 s + 0,006 s) + 8x (30 mm-14 mm)
S = 302 mm
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Machine's
run-on path
BA - TLCT / ICT_1129
Horizontal safeguarding of hazard zones with a light grid (EN 999 / ISO 13855)
13
Sample calculation of safety clearance
during horizontal safeguarding of hazard
zones using TLCT light curtains:
Example:
Safety light curtain TLCT1200/144
Light curtain's reaction time: t1: 17 ms
Machine's run-on time t2: 50 ms
H = 200 mm
The safety clearance is:
S = (1600 mm /s x (0,050 s + 0,017 s)) +
(1200 mm - 0,4 x 200 mm)
S =1228 mm
With the TLCT 1200/144, the protective
field has a depth of 1200 mm.
The distance abetween the last beam and
the hazard zone's front edge is therefore
28 mm + 5 mm = 33 mm (the last beam
must be added).
Formula for calculating safety clear-
ance during horizontal safeguarding of
hazard zones using light curtains:
In this case:
K = 1600 mm/s
C = 1200mm-0,4H, ut smaller than
850 mm, H being the height of the
protective field in mm above the
reference plane, e.g. the floor
T = t1 + t2 (also refer to Page 12)
t1 = Protective mechanism's
reaction time
t2 = Machine's run-on time
If the protective field is at a height of
≥300 mm above the floor, there is a
danger of slipping beneath it. This must
be considered when assessing risks.
Accordingly, at
H ≥300 mm:
1200 - 0,4 x H > 850 mm
The clearance a to the end of the
protective field (between the last
beam and the hazard zone's front
edge) must not exceed:
Example:
Height 200 mm
amax = 200 / 15 + 40 mm
amax = 53 mm
S = (1600 mm / s x T) + (1200 mm - 0,4 H)
a = H / 15 + 40 mm
S= Safety clearance
From the start of the protective field
(1st beam) to the hazard zone's front
edge
H
Hazard zone's front edge
H = Protective field's height with respect to the reference plane
S = (K x T) + C
a= Protective field's distance
From the last beam to the hazard
zone's front edge
S
a
Fig. 13/1: Horizontal safeguarding
Table of Contents
2Assembly 2.2 Safety clearance
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
BA - TLCT / ICT_1129
14
2Assembly 2.3 Installation conditions
Table of Contents
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
max. 5o
amax. 5o
Distance to reflective surfaces
The minimum clearance a is listed
in the adjacent table.
Installation range in m To 3 4 5 6
Clearance a in mm 130 175 219 262
Fig. 14/1: Clearance to reflective surfaces
Hazard zone
Reflective object
(e.g. container)
TLCT receiver TLCT transmitter
Direction of approach
Interrupted beam Central beam
Container
To prevent reflective objects
from hindering a clear view
and detection of obstruc-
tions, TLCT/ ILCT safety
light curtains must be mounted at a
minimum clearance a (Figure 14/1) from
such reflective objects.
Table 14/2: Installation range / clearance
BA - TLCT / ICT_1129
Assembly without additional safeguarding
The light transmitter (a) (Figure 15/1) and light receiver (b) together
produce a light curtain (c). If a light beam is interrupted, e.g. by a
human hand, the control circuit opens, thereby stopping the
machine's closure.
In this example, the TLCT/ ILCT safety light curtain cannot be
bypassed from the working side, eliminating the need for
additional safeguarding at the front.
Protection against infiltration from below and above
Cascading or additional safeguarding to prevent infiltration from the rear
15
2Assembly 2.3 Installation conditions
Fig. 15/1: Assembly without additional safeguarding
Figures 15/2 a,b,c: Protection against infiltration from below and above
≤75 mm
15/2.a 15/2.b 15/2.c
Fig. 15/3: Two cascaded safety light curtains to prevent infiltration from the rear
To prevent the protective field from being infiltrated
from the rear, the gap between the TLCT/ ILCT light
curtain and the machine must be ≤75 mm.
In the normal operating procedure (Figure 15/2a), the operator places workpieces in the seated position. To
allow for the machine's run-on time, the TLCT/ ILCT safety light curtain (a) is mounted at a distance before the
hazard zone (refer to Chapter 2.2).
At the protection height selected here, an exposed gap results above the light curtain.
Figure 15/2b shows how reaching over the light curtain can cause an accident. Figure 15/2c shows how this can
be remedied by installing a TLCT/ ILCT safety light curtain providing a higher protective field.
If the gap between the vertical TLCT/ ILCT safety light curtain and the machine is larger than 75 mm
(e.g. to maintain a safety margin to the hazard zone), infiltration from the rear must be prevented by means
of an additional TLCT/ ILCT safety light curtain, two cascaded light curtains (Figures 15/3 and 15/4) or a
protective bar.
Table of Contents
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
BA - TLCT / Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
mm
Right!
Wrong!
Wrong! Right!
BA - TLCT / ICT_1129
Arrangement of two neighbouring safety light curtains
To prevent mutual interference between two neighbouring safety light curtains, these must be installed as
shown next.
16
2Assembly 2.3 Installation conditions
Fig. 16/3: Arrangement of two neighbouring light curtains
Table of Contents
Empfänger
SenderEmpfänger
SenderEmpfänger
Sender Empfänger
SenderEmpfänger Sender
Empfänger Sender
FIESSLER
E L E K T R O N I K
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
BA - TLCT / Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Receiver Transmitter Receiver Transmitter
Receiver Transmitter Receiver Transmitter
Receiver Transmitter Receiver Transmitter
BA - TLCT / ICT_1129
2Assembly 2.4 Mounting and adjustment
Swivel mounting
Table of Contents
Important:
The light transmitter and receiver must be attached to stable, rigid,
plane-parallel structures.
Make sure that the profile is resistant to torsion, otherwise proper
optical adjustment will not be possible.
When mounting the transmitter and receiver, ensure that both
devices' connectors are located on the same side.
FIESSLER
E L E K T R O N I K
Fiessler Elektronik Kastellstr. 9
D 73734 Esslingen
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
17
BA - TLCT /
Lateral mounting
The TLCT/ILCT can be mounted on the side or the rear with the help
of the accompanying swivel fixtures. A long and a short swivel fixture
are included.
The short swivel fixture is to be attached by means of the
accompanying plastic bolt.
The long swivel fixture is to be attached using the lock nuts of the
TLCT/ILCT light curtain's M12 connector.
Depending on the required type of mounting (lateral or rear), the
fixture must be installed as explained further below.
Rear mounting
Long swivel fixture attached via an M12
connector
Adjustment:
Perform corrections to the
transmitter's and receiver's
mutual alignment until the
7-segment display and
adjustment-aid LED go off.
LEDs and displays are
described on
Page 6
BA - TLCT / ICT_1129
Short swivel fixture (with fixing screw)
attached via a plastic bolt
Fixing screw
18
2Assembly 2.4 Mounting and adjustment
FIESSLER
E L E K T R O N I K
Table of Contents
Lateral mounting of TLCTs
M3 nuts fully pressed in.
Press 2 M3 nuts into the swivel
fixture.
Step 3
Attach the short swivel fixture to
the plastic bolt.
Fasten the long swivel fixture
via the connector's M12 nuts.
Step 4 Step 5 Step 6
Now the light curtain can be swivelled by about ±10° and aligned
optimally by means of the adjustment screws. The light curtain can be
adjusted even with the M12 plug in place.
Perform corrections to the transmitter's and receiver's mutual
alignment until the 7-segment display and adjustment-aid LED
go off.
If the swivel range is insufficient, the auxiliary widening elements can
be fitted to permit omni-directional swivelling beyond the edges (refer
to rear assembly).
After adjustment, the fixing screw must be tightened to prevent
accidental move.
Subsequently the fastening screws must be tightened.
Step 1 Step 2
Step 7
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
BA - TLCT / ICT_1129
Supplied parts: The crossed-out parts are needed only
if the swivel range proves insufficient.
8 nuts (M3) , 8 adjustment screws (M3 x 8)
Insert 2 each of the accom-
panying adjustment screws via
the through-bores into the M3
nuts pressed in at the rear.
The light curtain is to be mounted
by means of M6 countersunk
screws (not included in the scope
of delivery).
Refer to Page 10 of Chapter 1.8
(dimensions) for mounting
clearances.
1st light beam is
interrupted.
Also refer to Page 6.
Important:
The light transmitter and
receiver must be
attached to stable, rigid,
plane-parallel structures.
Make sure that the
profile is resistant to
torsion, otherwise
proper optical
adjustment will not be
possible.
When mounting the
transmitter and receiver,
ensure that both devices'
connectors are located
on the same side.
Display:
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
The long swivel fixture is meant for
the side with the M12 connector.
The short swivel fixture is meant for
the side with the plastic bolt.
(with fixing screw)
fixing screw
19
2Assembly 2.4 Mounting and adjustment
FIESSLER
E L E K T R O N I K
Table of Contents
Rear mounting of TLCTs
Step 3
On parts 1 and 2: Insert 2 each
of the accompanying adjust-
ment screws via the through-
bores into the M3 nuts pressed
in at the rear.
Attach the short swivel fixture to
the plastic bolt.
The adjustment screws can be
turned inside the through-bores.
Step 4 Step 6
Step 1 Step 2
The light curtain is to be mounted
by means of M6 countersunk
screws (not included in the scope
of delivery).
Refer to Page 10 of
Chapter 1.8 (dimensions) for
mounting clearances.
Step 5
Fasten the long swivel fixture
via the connector's M12 nuts.
The widening element can be
fitted to permit swivelling of the
TLCT in all directions beyond
the edges.
1st light beam is
interrupted.
Also refer to Page 6.
Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
BA - TLCT / ICT_1129
Supplied parts:
8 nuts (M3) , 8 adjustment screws (M3 x 8)
2 x part 1
2 x part 2
M3 nuts fully pressed in.
Press 2 M3 nuts each into the
top ends of the widening
elements
Step 7
Display:
Important:
The light transmitter and
receiver must be
attached to stable, rigid,
plane-parallel structures.
Make sure that the
profile is resistant to
torsion, otherwise
proper optical
adjustment will not be
possible.
When mounting the
transmitter and receiver,
ensure that both devices'
connectors are located
on the same side.
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
The long swivel fixture is meant for
the side with the M12 connector.
The short swivel fixture is meant for
the side with the plastic bolt.
(with fixing screw)
Now the light curtain can be swivelled in all directions even beyond the
edges, and aligned optimally by means of the adjustment screws.
The light curtain can be adjusted with the M12 plug in place.
Perform corrections to the transmitter's and receiver's mutual
alignment until the 7-segment display and adjustment-aid LED go
off.
After adjustment, the fixing screw must be tightened to prevent
accidental move.
Subsequently the fastening screws must be tightened.
Step 8
20
Optional shackles are also available for fastening and adjusting light curtains. In
conjunction with movable slot blocks, these shackles permit universal fastening.
For swivelling about the longitudinal axis, turn the corresponding adjustment
screw on one shackle after loosening the two screws on the other shackle.
For swivelling about the transverse axis, equally turn both adjustment screws on
one shackle after loosening the two screws on the other shackle.
2Assembly 2.4 Mounting and adjustment
Shackles / optional
Table of Contents
Important:
To ensure error-free operation, the light transmitter and receiver must be
attached to stable, rigid, plane-parallel structures.
Install the shackles so that the adjustment screws remain fully accessible.
Make sure that the profile is resistant to torsion, otherwise proper optical
adjustment will not be possible. Loosen the adjustment screws on one shackle
before adjusting the other shackle.
FIESSLER
E L E K T R O N I K
Adjustment screws
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D 73734 Esslingen
BA - TLCT / Phone: +49 / 711 / 91 96 97-0 Internet: http://www.fiessler.de
Another means of mounting is to position a block
(available from Fiessler Elektronik) in the slot on
the rear of the TLCT.
A threaded bolt is then screwed into the block via a
through-bore.
Ensure plane-parallel mounting of the transmitter
and receiver.
Since fine adjustment is not possible here, the
installation site must permit plane-parallel and
torsion-free mounting.
Mounting with a slot block and threaded bolt / optional
When mounting the transmitter and receiver,
ensure that both devices' connectors are located
on the same side.
Ensure plane-parallel mounting of the transmitter
and receiver.
Adjustment:
Perform corrections to the transmitter's and
receiver's mutual alignment until the
7-segment display and adjustment-aid LED
go off.
LEDs and displays are described on
Page 6
BA - TLCT / ICT_1129
This manual suits for next models
1
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