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EN
Operating instructions. . . . . . . . . . . .pages 1 to 12
Translation of the original operating instructions
SLC 430
Operating instructions
Safety light curtain
EN
1
1. About this document
1.1 Function
This operating instructions manual provides all the information you
need for the mounting, set-up and commissioning to ensure the safe
operation and disassembly of the safety switchgear. The operating instructions must be available in a legible condition and a complete version
in the vicinity of the device.
1.2 Target group: authorised qualified personnel
All operations described in this operating instructions manual must
be carried out by trained specialist personnel, authorised by the plant
operator only.
Please make sure that you have read and understood these operating
instructions and that you know all applicable legislations regarding
occupational safety and accident prevention prior to installation and
putting the component into operation.
The machine builder must carefully select the harmonised standards to
be complied with as well as other technical specifications for the selection, mounting and integration of the components.
1.3 Explanation of the symbols used
Information, hint, note:
This symbol is used for identifying useful additional information.
Caution: Failure to comply with this warning notice could
lead to failures or malfunctions.
Warning: Failure to comply with this warning notice could
lead to physical injury and/or damage to the machine.
1.4 Appropriate use
The products described in these operating instructions are developed to
execute safety-related functions as part of an entire plant or machine. It
is the responsibility of the manufacturer of a machine or plant to ensure
the proper functionality of the entire machinery or plant.
Content
1 About this document
1.1 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Target group: authorised qualied personnel . . . . . . . . . . . . . . . . 1
1.3 Explanation of the symbols used. . . . . . . . . . . . . . . . . . . . . . . . . .1
1.4 Appropriate use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.5 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.6 Warning about misuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.7 Exclusion of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Product description
2.1 Ordering code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.2 Special versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3 Included in delivery and accessories. . . . . . . . . . . . . . . . . . . . . . .2
2.3.1 Accessories included in delivery . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.3.2 Optional accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.4 Destination and use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.6 Safety classication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.7 Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.7.1 Protective mode / standard operation . . . . . . . . . . . . . . . . . . . . . .3
2.7.2 Restart interlock (manual reset) / hold function. . . . . . . . . . . . . . .3
2.7.3 Contactor control (EDM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.7.4 Testing / external test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.7.5 Signalling output / low-voltage safety output . . . . . . . . . . . . . . . . . 3
3 Mounting
3.1 General conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3.2 Protection eld and approach . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3.3 Fixing of the sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.4 Fixation of the NSR-0605 safety-monitoring module . . . . . . . . . .4
3.5 Safety distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.5.1 Minimum distance to reecting surfaces . . . . . . . . . . . . . . . . . . . .5
3.6 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
4 Electrical connection
4.1 Standard operation (protective mode) with contactor control . . . . 7
4.2 Restart interlock (manual reset) (hold function) with contactor
control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4.3 Connector conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Set-up and maintenance
5.1 Check before start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.3 Regular check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
5.4 Half-yearly inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5.5 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Diagnostic
6.1 LED status information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6.2 Optical and acoustic signals in the control unit . . . . . . . . . . . . . . .9
6.2.1 Protective mode / standard operation . . . . . . . . . . . . . . . . . . . . .9
6.2.2 Mode of operation restart interlock (manual reset) / hold function 9
6.3 Fault diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Disassembly and disposal
7.1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7.2 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8 Appendix
8.1 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8.2 EC Declaration of conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
X.000 / v.A. / 01.20 11 / B Z-Nr. 53501-6V 900 / Teile-Nr. 1214 168_EN / Ausgab e B
2
EN
SLC 430
Operating instructions
Safety light curtain
The safety switchgear must exclusively be used in accordance with the
versions listed below or for the applications authorised by the manufacturer. Detailed information regarding the range of applications can be
found in the chapter "Product description".
1.5 General safety instructions
The user must observe the safety instructions in this operating instructions manual, the country-specific installation standards as well as all
prevailing safety regulations and accident prevention rules.
Further technical information can be found in the Schmersal
catalogues or in the online catalogue on the Internet: www.
schmersal.net.
The information contained in this operating instructions manual is provided without liability and is subject to technical modifications.
The entire concept of the control system, in which the safety
component is integrated, must be validated to EN ISO 13849-
2.
There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
Additional measures could be required to ensure that the electro-sensitive device does not present a dangerous breakdown, when other forms
of light beams are available in a special application (e.g. use of wireless
control devices on cranes, radiation of welding sparks or effects of
stroboscopic lights).
1.6 Warning about misuse
In case of inadequate or improper use or manipulations of the
safety switchgear, personal hazards or damage to machinery or plant components cannot be excluded. The relevant
requirements of the standards EN ISO 13855 (successor of
EN 999) and EN ISO 13857 must be observed.
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary repairs, conversions and modifications to the device are strictly forbidden;
the manufacturer shall accept no liability for damages resulting from
such invasive work, arbitrary repairs, conversions and/or modifications
to the device.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
SLC 430-E/R➀-30-RF-SYS
No. Option Description
➀
xxxx Protection field heights in mm available
lengths:
0236, 0460, 0684, 0908,
1132, 1356, 1580, 1804
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefore the compliance with the Machinery Directive is maintained.
2.2 Special versions
For special versions, which are not listed in the order code below 2.1,
these specifications apply accordingly, provided that they correspond to
the standard version.
2.3 Included in delivery and accessories
2.3.1 Accessories included in delivery
Sensor E and sensor R with mounting accessories,
Safety monitoring module NSR-0605,
Cable set KA-0610 (cable length 5 m)
2.3.2 Optional accessory
Connecting cable for emitter and receiver
Item number
Description Description Length
1207718 KA-0610 Female connector M8, 4-pole 5 m
1207719 KA-0611 Female connector M8, 4-pole 10 m
Profile for emitter/receiver
Item number
Description
Profile 40 x 40 mm
Length
1207720 MS-1501 SLC 430-E/R0236-30 467.5 mm
1207721 MS-1502 SLC 430-E/R0460-30 691.5 mm
1207722 MS-1503 SLC 430-E/R0684-30 915.5 mm
1207723 MS-1504 SLC 430-E/R0908-30 1139.5 mm
1207724 MS-1505 SLC 430-E/R1132-30 1363.5 mm
1207725 MS-1506 SLC 430-E/R1356-30 1587.5 mm
1207726 MS-1507 SLC 430-E/R1580-30 1811.5 mm
1207727 MS-1508 SLC 430-E/R1804-30 2035.5 mm
2.4 Destination and use
The SLC is a non-contact, self-testing safety guard, which is used for
the protection of hazardous points, hazardous areas and machine
access . If one or more light beams are interrupted, the hazardous
movement must be stopped.
The user must evaluate and design the safety chain in accordance with the relevant standards and the required safety
level.
2.5 Technical data
Standards: EN 61496-1; CLC/TS 61496-2;
EN ISO 13849; EN 62061
Material of the enclosure: Aluminium
Number of beams: 8 … 64 beams
Protection field heights: 236 mm - 1804 mm
Detection ability for test bodies: 30 mm
Range of the protection field: 0.2 … 3.5 m
Response time: 50 ms
Rated operating voltage: 22-30 VDC or 18-25 VAC
Operating current: < 300 mA
Wave length of the sensor: 880 nm
Extraneous light insensitivity: 50,000 Lux
Safety outputs (OSSD1, OSSD2): Relay contact positive action
Switching voltage: 250 V
Switching current: 4 A
Signalling output:
Switching voltage: 42 V
Switching current: 4 A
Load capacity: 2 µF
Load inductance: 2 H
Admissible conduction resistance between OSSD and load: 10 Ω
Test input:
Input voltage HIGH: 30 VDC
Input voltage LOW: 18 VDC
Signal length: > 100 ms
Input restart interlock (manual reset)
Input voltage HIGH: 30 VDC
Input voltage LOW: 18 VDC
Signal length: > 200 ms
Function SLC 430: Protective mode, restart interlock (manual reset),
contactor control
LED indications Sensor E: Sensor E active
3
EN
SLC 430
Operating instructions
Safety light curtain
LED indications sensor R: OSSD ON, OSSD OFF, restart interlock
(manual reset) enabling
Sensor connection: M8 x 1, 4-pole shielded female connector;
cable length 5m
Safety-monitoring module connection: Removable screw terminal
block
Ambient temperature: 0° C ... +50° C
Storage temperature: −10° C ... +70° C
Synchronisation: RS 485 BUS
Protection class: IP65 (IEC 60529)
Resistance to vibrations: 10 … 55 Hz to IEC 60068-2-6
Resistance to shock: 10 g; 16 ms; to IEC 60068-2-29
Fuses:
Power supply: F1: 1.6 A / 250 V T
Output contacts: F5, F6: 4.0 A / 250 V T
Signalling output: F7: 4.0 A / 250 V T
Year of construction: as of 2010 version 1.0
2.6 Safety classification
Standards: EN ISO 13849-1, EN 62061
PL: up to e
Control category: up to 4
PFH value: 1.26 x 10-8 /h
SIL: up to 3
Service life: 20 years
2.7 Functions
The system consists of 2 components, the E/R sensors and the NSR0605 safety-monitoring module.
The connection between these components is realised through a 4-pole
female connector for the sensor connection. The transmitter and receiver units are supplied with direct-current voltage through the NSR-0605
safety-monitoring module. All system components are connected to the
safety-monitoring module.
The protection field is generated between both sensors E and R, which
each represent a transmitter and a receiver unit. The safety-monitoring
module obtains the signals of the transmitter and receiver units through
a RS-485 BUS connection and makes the corresponding status
available at the output through two safety relays. To trigger a switch-off
command, covering just one light beam will suffice.
The safety light curtain is self-monitoring, i.e. for every fault occuring
in the system either during the self-test or covered by an external test,
the OSSD outputs are disabled. As long as the fault remains active, the
system will remain locked in OFF condition. This locked situation is not
cancelled by switching-off and back on the supply voltage either.
The system has the following features:
• Protective mode
• Restart interlock (manual reset)
• Contactor check
2.7.1 Protective mode / standard operation
The protective mode switches the OSSD outputs to ON state (protection field not interrupted), without external release of a switching device.
This type of protection generates an automatic restart of the machine if
the protection field is not interrupted.
This operating mode may only be chosen in conjunction with
the restart interlock (manual reset) of the machine.
This operating mode must not be chosen, when persons can
step behind the protection field.
2.7.2 Restart interlock (manual reset) / hold function
In this way, the system is kept in a locked condition after a protection
field interruption, after switch-on or after power off (OSSD's OFF state).
The locking condition will only be cancelled after the protection field is
enabled and an external command device has been actuated. To switch
between normal and hold operation (restart interlock), a slide switch on
the control unit is used.
The command devices (enabling button) must be installed
outside of the hazardous area. The operator must have a
clear view on the hazardous area when actuating the enabling button.
2.7.3 Contactor control (EDM)
The contactor control monitors the controlled switching elements
(auxiliary contacts of the contactors) of both outputs. This monitoring
is realised after each interruption of the protection field and prior to
the restart (enabling) of the outputs. In this way, malfunctions of the
relays are detected, e.g. contact welding or contact spring breakage.
If the light curtain detects a malfunction of the switching elements, the
outputs are locked. (s. Electrical connection)
2.7.4 Testing / external test
The system can trigger a test cycle by means of the external test input.
By applying a signal (+ 24 VDC) at the test output, a complete self-test
is executed. The outputs change to OFF state and are re-enabled after
1.5 s if no fault is detected.
Regardless of the activation of the external test input, a self-test is
cyclically executed within the permissible triggering time of the system.
The condition at the output relays does not change. The system is only
switched off when a fault is detected.
2.7.5 Signalling output / low-voltage safety output
The safety-monitoring module has a potential-free changeover contact
for the connection of a signal lamp. In this way, the signal conditions
OSSD ON and OSSD OFF can be visualised on the machine by means
of an indicator light. The signal lamp can be operated with 12V, 24V or
42V.
3. Mounting
3.1 General conditions
The following guidelines are provided as a preventive warning notice
to ensure safe and appropriate handling. These guidelines are an
essential part of the safety instructions and therefore must always be
observed and respected.
• The SLC must not be used on machines, which can be
stopped electrically in case of emergency.
• The safety distance between the SLC and a hazardous machine movement must always be observed and respected.
• Additional mechanical safety guards must be installed so
that the operator has to pass by the protection field to reach
the hazardous machine parts.
• The SLC must be installed so that the personnel always
must be within the detection zone when operating the machine. An incorrect installation can lead to serious injuries.
• Never connect the outputs to +24VDC. If the outputs are
wired to +24VDC, they are in ON state, as a result of which
they are unable to stop a hazardous situation occuring on
the application/machine.
• The safety inspections must be conducted regularly.
• The SLC must not be exposed to inflammable or explosive
gasses.
• The connecting cables must be connected in accordance
with the installation instructions.
• The fixing screws of the end caps of the mounting angle
must be firmly tightened.
4
EN
SLC 430
Operating instructions
Safety light curtain
3.2 Protection field and approach
The protection field of the SLC consists of the entire range located
between the protection field markings of sensor E and R. Additional
protective devices must ensure that the operator has to pass by the
protection field to reach the hazardous machine parts.
The SLC must be installed so that personnel are always located within
the detection zone of the safety device when operating the hazardous
machine parts to be secure.
Correct installation
Hazardous machine parts can only be reached
after passing through the protection field.
The presence of staff members between the
protection field and hazardous machine parts
must be prevented/avoided (protection against
stepping over).
Unauthorised installation
Hazardous machine parts can be reached without passing through the protection field.
The presence of staff members between the
protection field and hazardous machine parts is
enabled.
When tting a sensor pair, please check that the E and R
sensors have identical series numbers! The sensors are
optically adjusted to each other, thus guaranteeing the max.
setting range.
3.3 Fixing of the sensors
The sensors are fitted at the required positions by means of mounting
rails.
B90 mounting rail, angled (refer to chapter 3.6 Dimensions)
B180 mounting rail, straight (refer to chapter 3.6 Dimensions)
By means of two executions, various mounting types can be realised.
The angles are screwed to the base. The base must be flat and level to
avoid distortion of the sensors. The sensors must slide with the notch
at the rear of the guide slot of the mounting rail and fixed by means of
an adjusting screw. To prevent the fixing screw from loosening due to
possible vibrations, it must be secured by means of a suitable adhesive.
Please make sure that the sensors are installed correctly and not with
the, head and foot positions of both edges swapped. The connector
plugs are located at the head end of both sensors and therefore must
point in the same direction; the common direction however is not important. The edges must be fitted at the same height, with the translucent
(light-transmissive) surfaces oriented towards each other.
One of both sensors must be turned in both directions around its longitudinal axis to determine the point for the protection field interruption
(plant switch-off). The optimal alignment is obtained when the sensors
are adjusted in the middle between both points of the protection field
interruption.
3.4 Fixation of the NSR-0605 safety-monitoring module
The safety-monitoring module can be wall-mounted by means of 4
mounting holes in its enclosure (refer to chapter Dimensions).
3.5 Safety distance
The safety distance is the minimum distance between the protection
field of the safety light curtain and the hazardous area. The safety distance must be observed to ensure that the hazardous area cannot be
reached before the hazardous movement has come to standstill.
Calculation of the safety distance to EN ISO 13855 (successor of
EN 999) and EN ISO 13857
The safety distance depends on the following elements:
Run-on time of the machine (calculation by run-on time measurement)
Response time of the machine and the safety light curtain and the
downstream relay (entire safety guard)
Approach speed
Resolution of the safety light curtain
Safety light curtain SLC 430
The safety distance for resolutions 14 mm up to 40 mm is calculated by
means of the following formula:
S = 2000 mm/s * T + 8 (d - 14) [mm]
S = Safety distance [mm]
T = Total reaction time (machine run-on time, reaction time of the safety
guard, relays, etc.)
d = Resolution of the safety light curtain
The approach speed is covered with a value of 2000 mm/s
If value S <= 500 mm after the calculation of the safety distance, then
use this value.
If value S >= 500 mm, recalculate the distance:
S = 1600 mm/s * T + 8 (d - 14) [mm]
If the new value S > 500 mm, use this value as safety distance.
If the new value S < 500 mm, use a minimum distance of 500 mm.
5
EN
SLC 430
Operating instructions
Safety light curtain
Example:
Reaction time of the safety light curtain = 50 ms
Resolution of the safety light curtain = 30 mm
Run-on time of the machine = 330 ms
S = 2000 mm/s * (330 ms + 50 ms) + 8 (30 mm - 14 mm)
S = 888 mm
S = > 500 mm, therefore new calculation with V = 1600 mm/s
S = 736 mm
S = Safety distance [mm]
T = Run-on time of the machine + reaction time of the safety light
curtain
K = Approach speed of the body or the body part 1600 mm/s
The safety distance between the safety light curtain and the
hazardous point must always be respected and observed.
If a person reaches the hazardous point before the hazardous movement has come to standstill, he/she is exposed to
serious injuries.
Safety distance to the dangerous area
Limit of the hazardous point
Safety distance (S)
Protection field marking
Tool - upper part
Signal to stop the
hazardous movement
Stillstand of the hazardous movement
tn = tB - tA
Tool - lower part
tA
S
tB
≤ 75 mm = max. distance for protection against stepping over
To prevent persons from stepping over the protection field this
dimension must be imperatively respected and observed.
The formulae and calculation examples are related to the vertical set-up
(refer to drawing) of the light curtain with regard to the hazardous point.
Please observe the applicable harmonised EN standards and possible
applicable national regulations.
The successor standards of the EN 999 for calculating the
minimum distances of the safety guards with regard to the
hazardous point are EN ISO 13855 and EN ISO 13857.
3.5.1 Minimum distance to reflecting surfaces
During the installation, the effects of reflecting surfaces must be taken
into account. In case of an incorrect installation, interruptions of the
protection field could possibly not be detected, which could lead to
serious injuries. The hereafter-specified minimum distances with regard
to reflecting surfaces (metal walls, floors, ceilings or parts) must be
imperatively observed.
8° 8°
a= 262 mm
Access direction
Sensor R
Obstacle
optical axis
Sensor E
reflecting body
(e.g. Material container)
Limit of the hazardous point
a=105mm
5° 5°
The minimum distance a is measured from the optical axis of both
sensors to the reflecting body and depends on the protection field width
(refer to table and diagram).
SF width Minimum distance a
0.2 m … 3.0 m 105 mm
3.5 m 123 mm
4.0 m 140 mm
4.5 m 158 mm
5.0 m 175 mm
6.0 m 210 mm
70
1,5 3,0 4,0 5,0 7,5
100
200
300
Minimum distance a in mm
Protection field width in m
6
EN
SLC 430
Operating instructions
Safety light curtain
3.6 Dimensions
All measurements in mm.
A
H
12
19.7
Type H
Protected
height
A
Sensor
length with
connector
plug
Weight of
the sen-
sors E/R
[kg]
SLC 430-E/R0236-30-RF 236 467.5 0.3
SLC 430-E/R0460-30-RF 460 691.5 0.4
SLC 430-E/R0684-30-RF 684 915.5 0.55
SLC 430-E/R0908-30-RF 908 1139.5 0.65
SLC 430-E/R1132-30-RF 1132 1363.5 0.8
SLC 430-E/R1356-30-RF 1356 1587.5 0.9
SLC 430-E/R1580-30-RF 1580 1811.5 1.0
SLC 430-E/R1804-30-RF 1804 2035.5 1.2
Mounting angle B90, angled
1.5
3.5
40
20
7.5 7.5
40
M3
3.5
3.5
6 6
6.5
Mounting angle B180, straight
Ø 3.5M3
20
6
40
20
7.57.5
9.7 4.3
Safety monitoring module NSR-0605/08...64
226
240
5
146
160
60
7
EN
SLC 430
Operating instructions
Safety light curtain
4. Electrical connection
UND
ODER
COM
MAX. 1,6A
MAX. 4A
MAX. 4A
MAX. 4A
L1
L1
L2
L1
L2
*) *)
VDE 0551
18-21 VAC
22-30 VDC
VDE 0551
MAX. 42 VDC/VAC
15-48 VDC
15-30 VAC
1
2
3
4
5
6
7
1
2
1
2
B
A
Sch.
B
A
Sch.
Power supply
Output 1 Signalling outputOutput 2 Sensor E Sensor R
Hold function Test input
*) Spark suppression
OR
AND
Spark suppressors are imperatively required in case of
inductive loads! They must be switched parallel to the
inductance. A circuit parallel to the output contact is not
permissible! When diodes are used as spark suppressors,
switch-off will be delayed.
Approximate values for spark suppressors
Operating voltage R C
110 up to 230 V 220 Ω 0.22 µF
24 up to 48 V 100 Ω 2.2 µF
R
C
Operating
voltage
Output
contact
Consumer,
contactor
To avoid contact overload, the output circuits (output 1 / output 2) are individually fused. The maximum current-carrying
capacity is 4 A, 250 VAC. Both safety outputs must not be
wired in series! They must be wired 2-channel to the machine control. In addition to both main outputs output 1 / output
2, a signalling output is available. This is a potential-free
switching output, which can be switched as power-to-lock
either as power-to-unlock contact. In this way, the signalling
output is used for the logical query of the protection eld
status. The current-carrying capacity is 4 A / 42 V.
4.1 Standard operation (protective mode) with contactor control
*
* *
K1K1
H
N
K1
K1
K2K2
K2
K2
Safety monitoring module
Test input
Output 1 Output 2
Machine switch-off
circuit
* RC member for alterna-
ting-current voltage supply
When the test input is wired, the restart time is approx. 1.5
s after enabling of the protection eld.
4.2 Restart interlock (manual reset) (hold function) with contactor control
*
* *
K1
H
N
K1
K1
K2
K2
K2
Safety monitoring module
Input hold
function
Output 1 Output 2
Machine switch-off
circuit
* RC member for alterna-
ting-current voltage supply
The downstream realys K1 and K2 must have positive-action
contacts.
8
EN
SLC 430
Operating instructions
Safety light curtain
Cable screen at mounting angle
The ground connection laid together with the connecting cables must
be connected as shown to the E and R sensors through the fixation
part.
Connecting cable
KA-0610/0611
Sensor E/R
Fixing part
Earth connection
4.3 Connector configuration
Safety monitoring module NSR-0605
Description PIN Meaning
Power supply V 1
V 2
Sch.
Connections 1, 2, 3 (connected)
Connections 4, 5, 6 (connected)
GROUND
Sensors E / R +
B
A
Sch.
Supply voltage for sensor (brown)
0V for sensor (green)
Data signal for RS-485 bus (yellow)
Data signal for RS-485 bus (white)
Cable sheathing (black)
Signalling output AND
OR
COM
Switching signal ON - no interruption of
the beams, no system failure
Switching signal OFF - beams interrupted or system failure
common switching contact
Input hold function
+
-
Connection for command device to
suppress the holding function
Connection for command device to
suppress the holding function
Test input +
-
Input signal to trigger the system test
Input signal to trigger the system test
Output 1 1
2
Safety output OSSD 1, potential-free
NO contact
Output 2 1
2
Safety output OSSD 2, potential-free
NO contact
Power supply
Output 1
Signalling output
Output 2
Sensor E
Sensor R
Hold function
Test input
V1 V2
UND
DER
COM
Sch. 1 2 1 2
+ – B A Sch. + – B A Sch.
+ –
+ –
Connection for the E / R sensors:
Description PIN Color of the cable
Sensors E / R + BN (brown)
- GR (green)
B YE (yellow)
A WH (white)
Sch. BK (black)
+
-
B
A
Sch.
5. Set-up and maintenance
5.1 Check before start-up
Prior to start-up, the following items must be checked by the responsible person.
1. Starting hazardous machine parts must be impossible as long as a
body part of a person is inside of the protection field of the BWS.
2. The actuation of the BWS (protection field interruption) during the
hazardous stage of the machine operation must cause the hazardous
parts to be stopped or, where appropriate, to change to a different
safe state before they can be reached by a body part of a person. It
must be impossible to restart the hazardous parts before the BWS
has completely returned to its normal state and the machine control
elements have been reactuated.
3. Check the machine to ensure that there are no other mechanical
or structural aspects preventing the machine from being stopped or
from switching to a different, safe state through a switching command
of the BWS.
4. Examine and check the machine control and the connections to the
BWS to make sure that no changes have been made, which have
a negative impact on the system and that suitable and appropriate
changes have been adequately registered.
Switch the SLC on and check the operation in the following way:
The component performs a system test after the operating voltage has
been switched on. After that, the outputs are enabled (if the protection
field is not interrupted). The LED "OSSD ON" of the receiver is on.
In case of incorrect functioning, please follow the instructions
listed in the chapter Fault diagnostic.
5.2 Maintenance
Do not use the SLC before the next inspection is terminated. An incorrect inspection can lead to serious and mortal
injuries.
Conditions
For safety reasons, all inspection results must be archived. The operating principle of the SLC and the machine must be known in order to
be able conducting an inspection. If the fitter, the planning technician
and the operator are different persons, please make sure that the user
has the necessary information at his disposal to be able conducting the
maintenance.
5.3 Regular check
A regular visual inspection and functional test, including the following
steps, is recommended:
1. The component does not have any visible damages.
2. The optics cover is not scratched or soiled.
3. Hazardous machinery parts can only be accessed by passing
through the protection field of the SLC.
4. The staff remains within the detection area, when works are conducted on hazardous machinery parts.
5. The safety distance of the application exceed the mathematically
calculated one.
Operate the machine and check whether the hazardous movement
stops under the hereafter-mentioned circumstances.
6. Hazardous machine parts do not move when the protection field is
interrupted.
9
EN
SLC 430
Operating instructions
Safety light curtain
7. The hazardous machine movement is immediately stopped, when
the protection field is interrupted with the test rod immediately before
the sensor E, immediately before the sensor R and in the middle
between the sensor E and R.
8. No hazardous machine movement when the test rod is within the
protection field.
9. Gefährliche Maschinenbewegung kommt zum Stillstand, wenn die
Spannungsversorgung des SLC ausgeschaltet wird.
5.4 Half-yearly inspection
The following items must be checked every six months or when a machine setting is changed.
1. Machine stops or does not inhibit any safety function.
2. No machine modification or connection change, which affects the
safety system, has taken place.
3. The outputs of the SLC are correctly connected to the machine.
4. The total response time of the machine does not exceed the respon-
se time calculated during the first putting into operation.
5. The cables, the connectors, the caps and the mounting angles are in
perfect condition.
5.5 Cleaning
If the optics cover of the sensors is extremely soiled, the OSSD outputs
can be disabled. Clean with a clean, soft cloth with exercising pressure.
The use of agressive, abrasive or scratching cleaning agents,
which could attack the surface, is prohibited.
6. Diagnostic
6.1 LED status information
GN
YE
RD
Sensor R
Function LED Description
Restart interlock
(manual reset)
yellow Signal request by external com-
mand device (pushbutton)
OSSD OFF red Safety outputs OFF state
OSSD ON green Safety outputs ON state
OR
Sensor E
Function LED Description
Transmitter ON orange Sensor E active
6.2 Optical and acoustic signals in the control unit
The control unit includes an acoustic signal generator (buzzer) as well
as multiple LED's.
The LED's n° 1, 2 and 3 (green) are permanently on when the operating
voltage is present. The LED's 4 and 6 (yellow) and the LED's 5 and
7 (red) show the respective system condition. The acoustic signal is
activated or deactivated by means of the buzzer switch.
The following tables show the different indication types for the system
conditions. The acoustic signal however is only emitted, when the
buzzer is switched on.
NSR-0605
2
1
3
5
4 6
7
F1 F5 F6 F7
H
N
ON
H - Hold function
N - Normal function
Service
fuse
Buzzer switch
Function switch
Buzzer
OFF
6.2.1 Protective mode / standard operation
Status of the protection field
no interruption continuous interruption
red LED's
(5; 7)
flashing flashing
yellow
LED‘s (4; 6)
continuously on off
acoustic
signal
none short interval
6.2.2 Mode of operation restart interlock (manual reset) / hold
function
A) Everytime the operating voltage is switched on
Start interlock active
red LED's
(5; 7)
continuously on
yellow
LED‘s (4; 6)
off
acoustic
signal
constant
The system waits for the command device to be actuated. For the system condition OSSD's ON, the protection
eld must be permanently clear after the actuation of the
command device (hold function input) for 300 ms. If the protection eld is clear (no IR beam interrupted), the system is
enabled. If not, the LED's 4, 6 (yellow) will be off, the LED"s
5, 7 (red) will be permanently on and a constant acoustic
signal is emitted.
B) In operation
Status of the protection field
no interruption continuous or previous inter-
ruption
red LED's
(5; 7)
flashing continuously on
yellow
LED‘s (4; 6)
continuously on off
acoustic
signal
none constant
10
EN
SLC 430
Operating instructions
Safety light curtain
6.3 Fault diagnostic
Failure/malfunction Possible causes Check and elimination
Although being clear, the protection field is not enabled after the
actuation of the command device,
indicator lamp green
No contact of the wiring from the output relay to the
machine control
Check terminals and re-wire if necessary
Defective fuse in output relay Check fuse F5/F6
Although being clear, the protection field is not enabled after the
actuation of the command device,
indicator lamp red
Both or one of the sensors incorrectly wired to the
safety-monitoring module
Check polarity and bus connection of the terminals
Translucent surface of the sensors highly soiled Clean surface
Malfunction of one or more beams Contact the customer service department
Although being clear, the protection
field is not enabled after the actuation of the command device, no
indication from indicator lamp
Safety-monitoring module's supply voltage missing Check terminals and re-wire if necessary
Malfunction of the fuse of the supply voltage input Check fuse F1
Protection field clear, but no enabling
Normal operation - LED 5 (red) emits every 3 seconds the following flash impulses
Permanent flashing Synchronisation error Exchange safety-monitoring module
1 flash Error self-test Exchange safety-monitoring module
2 flashes Communication error Exchange sensor pair, check cable pair
3 flashes Communication Sensor E Check cable E, exchange sensor pair
4 flashes Communication Sensor R Check cable R, exchange sensor pair
5 flashes False plant parameters Check plant components assignment
7. Disassembly and disposal
7.1 Disassembly
The safety switchgear must be disassembled in a de-energised condition only.
7.2 Disposal
The safety switchgear must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.
8. Appendix
8.1 Contact
Consultancy / Sales:
K.A. Schmersal GmbH
Industrielle Sicherheitsschaltsysteme
Möddinghofe 30
D-42279 Wuppertal
Tel:+49 (0) 202 64 74 -0
Fax:+49 (0) 202 64 74- 100
You will also find detailed information regarding our product variety on
our website:
www. schmersal.com
Repair handling / shipping:
Safety Control GmbH
Am Industriepark 11
D-84453 Mühldorf / Inn
Tel.: +49 (0) 8631-18796-0
Fax: +49 (0) 8631-18796-1
11
EN
SLC 430-B-EN
SLC 430
Operating instructions
Safety light curtain
Appendix
The currently valid declaration of conformity can be downloaded from the internet at www.schmersal.net.
8.2 EC Declaration of conformity
Name of the safety component / type: SLC 430
Description of the safety component: Safety light curtain
Harmonised EC-Directives: 2006/42/EC EC-Machinery Directive
2004/108/EC EMC-Directive
Applied standards: EN 61496-1:2004 + A1 2008
CLC/TS 61496-2:2006
EN ISO 13849-1:2008; PL e
EN 62061:2005; SIL 3
Person authorised for the compilation of the technical documentation:
Ulrich Loss
Möddinghofe 30
42279 Wuppertal
Notied body for the prototype test: TÜV Nord Cert GmbH
Langemarckstr.20
45141 Essen
ID n°: 0044
EC- test certicate: n° 44 205 10 555867 006
Place and date of issue: Wuppertal, February 1, 2010
Authorised signature
Christian Spranger
Managing Director
Authorised signature
Klaus Schuster
Managing Director
EC Declaration of conformity
Translation of the original declaration of conformity Safety Control GmbH
Am Industriepark 33
84453 Mühldorf / Inn
Germany
We hereby certify that the hereafter described safety components both in its basic design and construction conform to the applicable European Directives.
Safety Control GmbH
Am Industriepark 33
D-84453 Mühldorf / Inn
Telefon +49 - (0)86 31 - 187 - 9 60
Telefax +49 - (0)86 31 - 187 - 9 61
E-Mail: info@safetycontrol.com
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