Leuze electronic SOLID-2SF-M User manual

SOLID-2SF-M
Optoelectronic delivery guarding for sheet fed offset printing machines
CONNECTING AND OPERATING INSTRUCTIONS
Original operating instructions
EN 2020/10/29 - 604058
We reserve the right to make technical changes

Leuze electronic GmbH + Co. KG SOLID-2SF-M 2
© 2020
Leuze electronic GmbH + Co. KG
In der Braike 1
D-73277 Owen / Germany
Phone: [phone]
Fax: [phone]
http://www.leuze.com
[email protected]

Leuze electronic GmbH + Co. KG SOLID-2SF-M 3
1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Symbols and terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.1 Intended use and foreseeable misuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.1 Foreseeable misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Competent personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Responsibility for safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Exemption of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 System design and selectable functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.1 The optoelectronic protective device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Transmission channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.1 Operation indicators on the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Operation indicators on the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.1 7-segment display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.2 LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5.1 Arrangement of the AOPD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Calculating the safety distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Minimum distance to reflective surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.4 Mechanical fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5 Types of fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5.1 Standard fastening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5.2 Fastening via swiveling mounting brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.5.3 Lateral fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
6.1 M12 connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1.1 Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1.2 Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.1.3 Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7 Error diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
7.1 What to do in case of failure? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.2 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.2.1 Transmitter diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.2.2 Receiver diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.3 AutoReset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
8.1 General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.1.1 Beam data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.1.2 Safety-relevant technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.1.3 General system data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.1.4 Signal input transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.1.5 Transistor outputs, receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.2 Dimensions, weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Leuze electronic GmbH + Co. KG SOLID-2SF-M 4
8.2.1 Multiple light beam safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.2.2 Dimensions mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9 Ordering data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
9.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.2 Order nos. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.3 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
10.1 Tests to be performed prior to the initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10.2 Regular tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10.3 Daily testing with the test rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10.4 Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10.4.1 Checklist for access guarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10.5 EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

General information
Leuze electronic GmbH + Co. KG SOLID-2SF-M 5
1 General information
The SOLID-2SF multiple light beam safety devices are optimized for use on sheet delivery on sheet-fed
printing machines. This requires defined interruption of beams without a stop being activated. Temporary
bridging in accordance with EN 1010 can, for example, be activated by a suitable control unit.
With a suitable control unit, SOLID-2SF are type 2 Active Optoelectronic Protective Devices (AOPDs) in
acc. with EN/IEC 61496-1, EN/IEC 61496-2, PL c in acc. with EN ISO 13849-1, and comply with SIL 2 in
acc. with IEC EN 61508.
All SOLID-2SF multiple light beam safety devices are equipped with integrated cyclical testing and display
elements (LEDs and 7-Segment). This is especially convenient during commissioning or diagnosis.
SOLID-2SF has 2-4 SSDs according to the number of beams, enabling the definitive assignment of the
interruption of individual light beams. Each SOLID-2SF also has a dynamic SSD, which transfers the result
of the integrated cyclical testing to the control.
The devices of the SOLID-2SF series are available with 2 to 4 beams and in various lengths (beam
distances), so that they provide an optimum solution for specific applications.
1.1 Certifications
The company
Leuze electronic GmbH & Co. KG in D-73277 Owen/Teck, possesses a certified quality assurance system
in accordance with ISO 9001.
Products
The SOLID-2SF safety light curtains have been developed and manufactured in accordance with the appli-
cable European directives and international standards.
EC type examination in accordance with
EN/IEC 61496 Part 1 and Part 2
TÜV PRODUCT SERVICE GmbH, IQSE
Ridlerstraße 65
80339 Munich, Germany
1.2 Symbols and terms
Symbols used
Warning sign – This symbol indicates possible dangers. Please pay espe-
cially close attention to these instructions!
Sign indicating important information.
A note, which also refers to a course of action, provides information about
special attributes or describes set-up procedures.

General information
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Table 1.1: Symbols
Symbols for SOLID-2SF transmitter SD2T
General transmitter symbol
Transmitter not active
Transmitter active
Symbols for SOLID-2SF receiver SD2R
General receiver symbol
The receiver's active protective field is not free; outputs in OFF state
The receiver's active protective field is free; outputs in ON state
The receiver's active protective field is free; outputs in OFF state
Signal output
Signal input
Signal input and/or output

General information
Leuze electronic GmbH + Co. KG SOLID-2SF-M 7
Terminology
Table 1.2: Terms
Start/restart interlock Start/restart interlock
Start/restart interlock Prevents automatic start after switching on the supply voltage or after inter-
rupting the protective field
Response time of the
AOPD
Time between interruption of the active protective field of the AOPD and the
actual switching off of the OSSDs.
AOPD Active Optoelectronic Protective Device
AutoReset When a fault message occurs, caused, for example, by faulty external wiring,
the AOPD attempts to start again. If the error is no longer present, the AOPD
returns to normal operation.
DoubleScan Two scans are made: Beams must be interrupted in two consecutive scans,
before the receiver switches off.
SSD1,.. ,SSD4, Dyn.
SSD
Safety-related switching outputs (transistor)
Scan All beams, beginning with the synchronization beam, are activated and
deactivated one after the other, i.e. only one beam is active at a time.
Contactor monitoring
(EDM)
The contactor monitoring (External Device Monitoring) monitors the normally
closed contacts of downstream positive-guided relays and contactors or
valves
FS Factory setting

Safety
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2 Safety
Before using the safety sensor, a risk assessment must be performed according to valid standards (e.g.
EN ISO 14121, EN ISO 12100-1, EN ISO 13849-1, IEC 61508, EN 62061). The result of the risk assess-
ment determines the required safety level of the safety sensor (see table 2.1). For mounting, operating and
testing, document "SOLID-2SF-M, Optoelectronic delivery guarding of sheet-fed printing machines" as
well as all applicable national and international standards, regulations, rules and directives must be
observed. Relevant and supplied documents must be observed, printed and handed to the affected
personnel.
Before working with the safety sensor, completely read and observe the documents applicable to your
task.
In particular, the following national and international legal regulations apply for the commissioning, tech-
nical inspections and work with safety sensors:
• Machinery directive 2006/42/EC
• Low voltage directive 2006/95/EC
• Electromagnetic compatibility 2004/108/EC
• Use of work equipment directive 89/655/EEC supplemented by directive 95/63 EC
• OSHA 1910 sub-part 0
• Safety regulations
• Accident-prevention regulations and safety rules
• Ordinance on Industrial Safety and Health and employment protection act
• Device Safety Act
2.1 Intended use and foreseeable misuse
NOTE
Local agencies can also provide safety-relevant information (e.g. occupational safety and health
inspectorate, employer's liability insurance association, labor inspectorate, OSHA).
WARNING!
A running machine can cause severe injuries!
Make certain that, during all conversions, maintenance work and inspections, the system is
securely shut down and protected against being restarted.

Safety
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2.2 Intended use
The safety sensor may only be used after it has been selected in accordance with the respectively appli-
cable instructions and relevant standards, rules and regulations regarding labor protection and safety at
work, and after it has been installed on the machine, connected, commissioned, and checked by a compe-
tent person.
When selecting the safety sensor it must be ensured that its safety-related capability meets or exceeds
the required Performance Level PLr ascertained in the risk assessment.
Listed in the following table are the safety-related characteristic parameters of the SOLID-2SF-M optoelec-
tronic delivery guarding for sheet-fed printing machines.
Table 2.1: Safety-related characteristic parameters of the SOLID-2SF-M optoelectronic delivery
guarding of sheet-fed printing machines
• The safety sensor protects persons at access points or at points of operation of machines and sys-
tems.
• When mounted vertically at entry points to hazard locations, the safety sensor detects the human
body.
• The safety sensor detects persons only when they enter the danger zone but cannot tell whether
there are any persons inside the danger zone. For this reason, a start/restart interlock is mandatory.
• The construction of the safety sensor must not be altered. When manipulating the safety sensor, the
protective function is no longer guaranteed. Manipulating the safety sensor also voids all warranty
claims against the manufacturer of the safety sensor.
• The safety sensor must be tested regularly by competent personnel.
• The safety sensor must be exchanged after a maximum of 20 years. Repairs or the exchange of
wear parts do not extend the mission time.
2.2.1 Foreseeable misuse
In principle, the safety sensor is not suitable as a protective device in case of:
• Danger posed by ejected objects or the spraying of hot or hazardous liquids from within the danger
zone
• Applications in explosive or easily flammable atmospheres
2.3 Competent personnel
Prerequisites for competent personnel:
• They have a suitable technical education.
• They know the rules and regulations for labor protection, safety at work and safety technology and
can assess the safety of the machine.
• He knows the instructions for the safety sensor and the machine.
• He has been instructed by the responsible person on the mounting and operation of the machine and
of the safety sensor.
Type in accordance with IEC/EN 61496 Type 2
SIL in accordance with IEC 61508 SIL 2
SILCL in accordance with IEC/EN 62061 SILCL 2
Performance Level (PL) acc. to EN ISO 13849-1: 2015 PL c
Category in accordance with EN ISO 13849 Cat. 2
Average probability of a failure to danger per hour (PFHd)
For protective field heights up to 900 mm, all resolutions
For protective field heights up to 1800 mm, all resolutions
For protective field heights up to 2850 mm, all resolutions
8.2 x 10-8 1/h
8.9 x 10-8 1/h
On request
Mission time (TM) 20 years

Safety
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2.4 Responsibility for safety
Manufacturer and operator must ensure that the machine and the implemented safety sensor function
properly and that all affected persons are adequately informed and trained.
The type and content of all imparted information must not lead to unsafe actions by users.
The manufacturer of the machine is responsible for:
• Safe machine construction
• Safe implementation of the safety sensor
• Imparting all relevant information to the operating company
• Adhering to all regulations and directives for the safe commissioning of the machine
The operator of the machine is responsible for:
• Instructing the operating personnel
• Maintaining the safe operation of the machine
• Adhering to all regulations and directives for labor protection and safety at work
• Regular testing by competent personnel
2.5 Exemption of liability
Leuze electronic GmbH + Co. KG is not liable in the following cases:
• Safety sensor is not used as intended.
• Safety notices are not adhered to.
• Reasonably foreseeable misuse is not taken into account.
• Mounting and electrical connection are not properly performed.
• Proper function is not tested (see chapter 10).
• Changes (e.g., constructional) are made to the safety sensor.

System design and selectable functions
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3 System design and selectable functions
3.1 The optoelectronic protective device
Mode of operation
SOLID-2SF consists of a transmitter and a receiver. Beginning with the first beam (= synchronization
beam) after the display field, the transmitter pulses beam for beam in rapid sequence. Synchronization
between transmitter and receiver occurs optically.
The receiver detects the specially coded pulse packages of the transmitted beams and evaluates the
corresponding receiving elements in sequence in the same rhythm. In this way, a protective field is created
in the area between the transmitter and receiver. The height of the area is determined by the geometric
dimensions of the protective device; its width is determined by the distance selected between transmitter
and receiver within the permissible operating range.
The safety output consists of the 1-channel SSDs, which provide the status of the corresponding beams
(SSD 1 shows the status of beam 1, SSD 2 the status of beam 2, SSD 3 the status of beam 3 and SSD 4
the status of beam 4), and the dynamic SSD output shared for all beams. When no errors are present on
the SOLID-2SF, this delivers a symmetrical square-wave signal with 300 ms pulse width. This dynamic
signal must be monitored by the downstream control. If the Dyn SSD signal fails to appear, the power-
driven machinery must be switched off. Correct connection must be checked with the machine's initial
commissioning!
3.2 Transmission channel
The infrared beams are modulated with specially coded pulse packages so that they are distinct from
ambient light, thus ensuring undisturbed operation. Welding sparks or warning lights from passing high-lift
trucks, thereby do not influence the protective field.
If two protective fields are located directly next to each other for two adjacent machines, however,
measures must be taken to ensure the optical protective devices do not affect each other.
Another possible way to suppress mutual interference is to switch one of the two protective devices from
transmission channel 1 to 2 and therefore to differently formed pulse packages. This solution should be
considered when more than two optical protective devices must be arranged next to each other.
Figure 3.1: Functional principle of the optoelectronic protective device
{
Control
Receiver
Transmitter
Additional for
4-beam system
d
1 to 4 beam status outputs
(1 output per beam)
Beam 1
Beam 2
Beam 3
Beam 4
aAOPD "A" transmission channel 1
bAOPD "B" transmission channel 2, not affected by AOPD "A"
Figure 3.2: Transmission channel selection (AOPD = Active Optoelectronic Protective Device)
a
b

System design and selectable functions
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The change from transmission channel 1 to 2 must be made both on the transmitter and the receiver of
the optical protective device in question. Further details can be found in chapter 6.

Display elements
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4 Display elements
4.1 Operation indicators on the transmitter
When the transmitter's green LED1 is lit, this indicates that the power supply is available.
Display of the current state of the transmitter:
Table 4.1: LED operation indicators, transmitter
4.2 Operation indicators on the receiver
LED1 and the 7-segment display signal the operating states of the receiver.
aLED1 (green/red)
bLED2 (green/red)
Figure 4.1: LED operation indicators, transmitter
ab
Display Meaning
LED1 green LED2 off Operating voltage applied, transmission channel 1 selected
LED1 green LED2 green Operating voltage applied, transmission channel 2 selected
LED1 green LED2 red Operating voltage applied, transmission channel 1 or transmission
channel 2 selected, external test signal activated
LED1 red LED2 any Device error
aLED1 = red/green
Figure 4.2: Operation indicators, receiver

Display elements
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4.2.1 7-segment display
After the supply voltage is switched on, the following data appears on the 7-segment display of the
receiver:
Table 4.2: 7-segment display, receiver, permanently
Table 4.3: 7-segment display, receiver, temporary
4.2.2 LED indicators
LED indicators for the receiver
Table 4.4: LED indicators at the receiver
7-segment display Meaning
Permanent display after startup
1 or 2 Display of the transmission channel 1 or 2
7-segment display Meaning
Temporary event displays, 1 s per display
E xx Display of locking status "Error", which can be rectified by the user; E xx =
Error code (see chapter 9). The display shows E, 3 (1st position) and 0 (2nd
position) alternating, and then repeats this sequence
F xx. Display of locking status "device error" and internal error code. Receiver
must be replaced
1 or 2 flashing Flashing transmission channel number -> weak signal display, device not
optimally aligned or soiled
LED Color Meaning
LED1 Red/
green
Red = At least one safety output SSD in OFF state
Green = All safety outputs SSDs in the ON state
No display = Device without supply voltage

Mounting
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5 Mounting
5.1 Arrangement of the AOPD
EN 1010-2 specifies the position of the beams on the sheet delivery for sheet-fed printing machines in the
following table:
Select the suitable SOLID-2SF type according to the access heights on the sheet delivery (e.g. 2-, 3- or 4-
beam, see order data) and mount the SOLID-2SF at the appropriate height.
5.2 Calculating the safety distance
With general applications, i.e. in cases where SOLID-2SF is not used for guarding the sheet delivery of a
sheet-fed printing machine, the safety distance must be calculated in acc. with EN 999.
The safety distance is calculated here using the following formula:
S = (K x T) +C
S: Safety distance between SOLID-2SF and the danger zone (mm)
K: Approach speed 1600 mm/s
T: Total time of the delay in seconds, i.e. the total of the response time of the protective device and the
downstream control or safety interface and the machine's stopping time
C: Additional distance 850 mm
5.3 Minimum distance to reflective surfaces
Reflective surfaces near optoelectronic protective devices can indirectly deflect beams from the trans-
mitter into the receiver. This can cause an object in the protective field not to be detected! All reflective
surfaces and objects (material containers, cans, etc.) must therefore be kept at a minimum distance "a" to
the protective field. The minimum distance "a" depends on the distance "b" between transmitter and
receiver.
Access height h Arrangement of the AOPD for the access level(s)
Light beam 1 aLight beam 2 aLight beam 3 a
h 1200 mm 300 mm N/A d400 mm below h
(h-400)
1200 mm < h  1500 mm 300 mm Centered between
light beams 1 and 3
400 mm below h)
(h-400)
h > 1500 mm 300 mm 700 mm 1100 mm
aPosition measured from access level or from fixed or swiveling platform; because of structural tolerances where
installed, the permissible tolerance for the position is ± 35 mm.
bLight beam between light beams 1 and 3, if distance between light beam 1 and 3 > 500 mm
cMaximum 1100 mm high
dSome blanking functions require 3 light beams for guarding the access side. Where these blanking functions are to be
used, with access heights over 1200 mm, a third light beam must be provided that is positioned centered between the
top and the bottom light beam.
a = Minimum distance
b = Protective field width
c = Reflective surface
Figure 5.1: Minimum distances to reflective surfaces
c
b
a
4°± 4°±

Mounting
Leuze electronic GmbH + Co. KG SOLID-2SF-M 16
5.4 Mechanical fastening
What should generally be taken into consideration when mounting?
• Make certain that the transmitter and receiver are mounted on even surfaces.
• The transmitter and receiver must be positioned at the same height and their connections must be
pointing in the same direction.
• Use screws for mounting that can only be loosened with a tool.
• Fasten and secure the transmitter and receiver so that they cannot be swiveled or moved. At close
range, securing against swiveling is particularly important for safety reasons.
• The safety distance between the protective field and the danger zone must be observed.
• Make sure that it is only possible to reach or go into the danger zone through the protective field.
Additional access points must be secured separately (e.g., by hard guards, additional safety light
curtains or doors with interlock devices).
5.5 Types of fastening
5.5.1 Standard fastening
Straddle brackets (for transmitter and receiver each) are included in delivery.
a = Required distance to reflective surfaces [mm]
b = Protective field width [m]
Figure 5.2: Minimum distances to reflective surfaces as a function of the protective field width
a
b
130
130
Figure 5.3: Clamp bracket for C-groove mounting
80
40
20
14

Mounting
Leuze electronic GmbH + Co. KG SOLID-2SF-M 17
5.5.2 Fastening via swiveling mounting brackets
Swiveling mounting brackets with shock absorbers can be ordered as an option. They are not included in
the scope of delivery. The swivel range is ± 8°.
5.5.3 Lateral fastening
Optionally, mounting is possible with mounting brackets and sliding blocks on the lateral groove. They are
not included in the scope of delivery.
Figure 5.4: Swiveling bracket with shock absorber
Figure 5.5: Mounting examples, L mounting bracket and Z mounting bracket
L mounting bracket Z mounting bracket

Electrical connection
Leuze electronic GmbH + Co. KG SOLID-2SF-M 18
6 Electrical connection
• The electrical connection must be performed by competent personnel only. Knowledge of all safety
instructions in these connecting and operating instructions is part of this competence.
• The 24 V DC ±15% external supply voltage must guarantee safe insulation from the mains voltage
and, for devices with transistor output, be able to bridge a power outage period of min. 20 ms. Leuze
offers suitable power supply units.
• The power supply must provide at least 1 A of current reserve. Transmitter and receiver must be pro-
tected against overcurrent.
• It is vital during the electrical installation that the power of the machine or system to be protected is
switched off and protected against restart, so that the dangerous movements cannot be started unin-
tentionally. The protective device may only be connected to the machine's safety circuit after all of its
safety functions have been entirely tested.
6.1 M12 connection
Transmitter and receiver are equipped with M12 connector plugs. The transmitter is equipped with a 5-pin
connector and the receiver with an 8-pin connector.
6.1.1 Transmitter
Table 6.1: Pin assignment transmitter
The optical transmission channel can be selected by reversing the polarity of Pin1 and Pin3. If +24 V DC
is applied at Pin1 and 0 V at Pin3, transmission channel 1 is selected. If 0 V is applied at Pin1 and
+24 V DC at Pin3, transmission channel 2 is selected.
Be sure to select the same transmission channel for both, transmitter and receiver.
1Brown
3Blue
4Black
5Gray
Figure 6.1: 5-pin SD-2T (view of the pins)
Pin Color Assignment Inputs/outputs
1 Brown Supply voltage +24V DC for UK1 or 0V for UK2
2White nc
3 Blue Supply voltage 0V for ÜK1 or +24V DC for ÜK2
4 Black Test in Test input
Connected to +24 V DC  internal test acti-
vated
Connected to 0 V or free  external test acti-
vated
5 Gray/connector
housing Shield Functional earth
ATTENTION!
For optimum shielding, connection cables where the shield is routed on the knurled nut of the
housing connector must be used (suitable cables are listed under accessories in chapter 9.3).

Electrical connection
Leuze electronic GmbH + Co. KG SOLID-2SF-M 19
6.1.2 Testing
The downstream control must evaluate the safety-relevant aspects of this signal and activate a machine
stop if the signal does not change.
There is also the option of external testing, with which the SSDs of the receiver switch off consecutively
as a response to the creation of a test signal on the transmitter. If external testing is required, the trans-
mitter's test input must be wired accordingly (see below).
In most cases, however, internal cyclical testing is used. For this purpose, the transmitter's test input must
be permanently connected to +24 V DC.
Internal cyclical testing
To activate external testing, connect Pin4 of the transmitter permanently to +24 V DC.
When using the internal cyclical testing, the corresponding SSDs and the shared Dyn. SSD must always
be evaluated for safety reasons by the downstream control.
External test signal
To use the external testing option, connect the test output of the corresponding evaluation unit with Pin4
of the transmitter. When using external testing in combination with a test evaluation unit, only the SSDs
must to be connected to the test evaluation unit.
6.1.3 Receiver
ATTENTION!
In fault-free operation, the cyclical internal testing delivers a signal on the Dyn. SSD alternating
between low and high every 300 ms. Detected errors are signaled by a static signal.
NOTE
External testing takes precedence over internal testing. If the external test is used, a corre-
sponding frequency of the dangerous movement (typically at least 10 times as frequent) is suffi-
cient to guarantee test frequency.
Test input Pin4, transmitter: +24V DC Test = Not activated
High-impedance or 0V Test = Activated
a = External test signal
b = High-impedance or 0 V
Figure 6.2: SOLID-2SF external testing
SSD1
SSD2
SSD3
SSD4
b
a
8 - 150 ms
+24 V DC
+24 V DC
+24 V DC
+24 V DC
+24 V DC
6 - 12 ms
Approx.
Approx.
Approx.
Approx.
Approx.
Approx.
6 - 12 ms
1White
2Brown
3Green
4Yellow
5Gray
6Pink
7Blue
8Black
Figure 6.3: 8-pin SD-2R (view of the pins)

Electrical connection
Leuze electronic GmbH + Co. KG SOLID-2SF-M 20
Table 6.2: Pin assignment receiver
With three-beam receivers, SSD4 is switched off; with two-beam, SSD3 is also switched off.
Selection of the transmission channel
The optical transmission channel can be selected by reversing the polarity of Pin2 and Pin7.
If +24 V DC is applied at Pin2 and 0 V at Pin7, transmission channel 1 is selected. If 0 V is applied at Pin2
and +24 V DC at Pin7, transmission channel 2 is selected.
For optimum shielding, connection cables where the shield is routed on the housing connector must be
used.
SSD and Dyn SSD safety outputs
Pin Color Assignment Inputs/outputs
1 White Output SSD4, transistor switching output
2 Brown Supply voltage +24V DC for transmission channel 1 or 0V for
transmission channel 2
3 Green Output SSD3, transistor switching output
4 Yellow Output Dyn SSD, transistor switching output
5 Gray Output SSD1, transistor switching output
6 Pink Output SSD2, transistor switching output
7 Blue Supply voltage 0 V for UK 1 or +24 V DC for UK 2
8 Black/connector
housing
Shield Functional earth
NOTE
Be sure to select the same transmission channel for both, transmitter and receiver.
ATTENTION!
The safety output consists of the 1-channel SSDs, which provide the status of the corresponding
beams and the Dyn SSD output shared for all beams. When no errors are present, this delivers
a symmetrical square-wave signal with 300 ms pulse width. This dynamic signal must be moni-
tored by the downstream control. If the Dyn SSD signal remains static, the power-driven
machinery must be switched off. Correct connection must be checked with the machine's initial
commissioning!