Leuze electronic SD4T 14 Quick start guide

SOLID-4
Safety Light Curtain
604049 - 2011/02 Subject to change without prior notice
CONNECTING AND OPERATING INSTRUCTIONS
Original Instructions

2 SOLID-4 Leuze electronic
DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS
Notes on Connecting and Operating Instructions
This connecting and operating instructions manual contains information on the proper use of
SOLID-4 Safety Light Curtains in accordance with its intended purpose. It is included with
delivery.
All the information contained herein, in particular the safety notes, must be carefully
observed.
This connecting and operating instructions manual must be stored carefully. It must be
available for the entire operating time of the optical safety device.
Notes regarding safety and warnings are identified with the symbol.
Notes regarding important pieces of information are identified with the symbol.
Leuze electronic GmbH + Co. KG is not liable for damage resulting from improper use
of its equipment. Familiarity with these instructions is an element of the knowledge
required for proper use.
© Reprints and reproduction, in whole or in part, are permitted only with the explicit
permission of
Leuze electronic GmbH + Co. KG
In der Braike 1
D-73277 Owen - Teck / Germany
Phone[phone] / 573-0
Fax [phone] / 573-199
[email protected]
www.leuze.com

Contents
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1 General................................................................................................................................6
1.1 Certifications ........................................................................................................................6
1.2 Symbols and terms ........................................................................................................................7
1.3 SOLID-4 selection................................................................................................................ 9
2 Safety ................................................................................................................................10
2.1 Approved purpose and foreseeable improper operation....................................................10
2.1.1 Proper use..........................................................................................................................10
2.1.2 Foreseeable misuse........................................................................................................... 11
2.2 Competent personnel...................................................................................................................12
2.3 Responsibility for safety .....................................................................................................12
2.4 Exemption of liability ..........................................................................................................12
2.5 SOLID-4 Safety Light Curtains with a resolution of 14 mm to 40 mm..........................................13
2.6 SOLID-4 Safety Light Curtains with a resolution of ≥40 mm.............................................13
2.7 Additional safety instructions for access guarding with SOLID-4.......................................14
3 System setup and possible uses....................................................................................15
3.1 The opto-electronic protective device ................................................................................15
3.2 Cascading option .........................................................................................................................16
4 Functions .......................................................................................................................... 18
4.1 Selectable functions of the SD4T Transmitter....................................................................18
4.1.1 Transmission channel ........................................................................................................18
4.2 Selectable functions of the SD4R-E Receiver....................................................................18
4.2.1 Transmission channel ........................................................................................................18
4.2.2 Start/restart interlock (RES) ...............................................................................................19
4.2.3 Contactor monitoring (EDM) ..............................................................................................20
4.3 Functions of receiver SD4R ...............................................................................................21
4.4 Diagnostics function: Dirt and error signal output ..............................................................21
4.5 Test input ........................................................................................................................... 21
5 Display elements..............................................................................................................22
5.1 SD4T Transmitter status displays ......................................................................................22
5.2 SD4R-E Receiver status displays ................................................................................................23
5.2.1 7-segment displays ............................................................................................................23
5.2.2 LED displays ......................................................................................................................24
5.3 SD4R Receiver status displays..........................................................................................24
5.3.1 7-segment display .............................................................................................................. 25
5.3.2 LED displays ......................................................................................................................25

Contents
4 SOLID-4 Leuze electronic
DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS
6 Installation........................................................................................................................ 26
6.1 Calculating minimum distances ......................................................................................... 26
6.1.1 Safety distance for point of operation guarding ................................................................. 26
6.1.2 Safety distance for danger zone guarding ......................................................................... 28
6.1.3 Safety distance and beam heights for Safety Light Curtains as access guarding ............. 30
6.1.4 Minimum distance from reflective surfaces........................................................................ 32
6.2 Mounting notes .................................................................................................................. 33
6.3 Mechanical mounting......................................................................................................... 34
6.4 Mounting types ............................................................................................................................ 35
6.4.1 Standard mounting............................................................................................................. 35
6.4.2 Option: Mounting with swiveling brackets.......................................................................... 35
6.4.3 Option: Side mounting ....................................................................................................... 36
7 Electrical connection....................................................................................................... 37
7.1 M12 coupling...................................................................................................................... 37
7.1.1 Transmitter......................................................................................................................... 37
7.1.2 Receiver SD4R-E............................................................................................................... 38
7.1.3 Receiver SD4R .................................................................................................................. 41
7.2 Connection examples ........................................................................................................ 42
7.2.1 Connection example for transmission channel 1(TC1) ...................................................... 42
7.2.2 Connection example for transmission channel 2 (TC2) ..................................................... 43
7.2.3 SOLID-4 connection example with downstream relay module, MSI-RM2 ......................... 44
7.2.4 Connection example of SOLID-4 with downstream MSI-SR4 Safety Interface Device ..... 45
8 Startup .............................................................................................................................. 46
8.1 Switching on....................................................................................................................... 46
8.1.1 Display sequence with SD4T Transmitter.......................................................................... 46
8.1.2 Display sequence with SD4R-E Receiver.......................................................................... 47
8.1.3 Display sequence on receiver SD4R ................................................................................. 48
8.2 Aligning transmitter and receiver ....................................................................................... 48
8.2.1 Optimizing alignment by turning and/or tilting the transmitter and receiver ....................... 48
9 Testing .............................................................................................................................. 49
9.1 Testing before first startup .................................................................................................49
9.2 Regular tests...................................................................................................................... 49
9.3 Daily testing with the test rod............................................................................................. 49
9.4 Cleaning the front screens........................................................................................................... 51

Contents
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10 Troubleshooting...............................................................................................................52
10.1 What do I do if an error occurs?.........................................................................................52
10.2 Diagnostics......................................................................................................................... 52
10.2.1 SD4T Transmitter diagnostic..............................................................................................52
10.2.2 SD4R-E Receiver diagnostics............................................................................................52
10.3 AutoReset ....................................................................................................................................54
11 Technical data ..................................................................................................................55
11.1 General data ......................................................................................................................55
11.1.1 Protective field data............................................................................................................55
11.1.2 Safety-relevant technical data............................................................................................55
11.1.3 General system data ..........................................................................................................55
11.1.4 SD4T Transmitter signal input............................................................................................56
11.1.5 SD4R-E Receiver signal inputs/outputs .............................................................................56
11.1.6 Safety-related transistor outputs ........................................................................................57
11.2 Safety Light Curtain/host dimensions, weights, response times ..................................................58
11.3 Safety Light Curtain/guest dimensions, weights, response times ......................................59
11.4 Number of beams for host / guest devices.........................................................................59
11.5 Bracket dimensions............................................................................................................61
12 Appendix...........................................................................................................................63
12.1 SOLID-4 scope of delivery .................................................................................................63
12.2 SOLID-4 ordering information ............................................................................................63
12.2.1 SOLID-4E Host ordering information .................................................................................65
12.2.2 SOLID-4 Guest ordering information..................................................................................66
12.3 SOLID-4 accessories ordering information ..................................................................................67
12.4 Checklists...........................................................................................................................69
12.4.1 Checklist for point of operation guarding............................................................................70
12.4.2 Checklist for danger zone guarding ...................................................................................71
12.4.3 Checklist for access guarding ............................................................................................72
12.5 EC Declaration of Conformity.......................................................................................................73

General
6 SOLID-4 Leuze electronic
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1 General
SOLID-4 Safety Light Curtains are type 4 Active Opto-electronic Protective Devices (Active
Opto-electronic Protective Devices, AOPDs) in accordance with EN IEC 61496-1 and
prEN/IEC 61496-2.
All SOLID-4 Safety Light Curtains with a type SD4R-E Receiver have start/restart interlock
and contactor monitoring function that can be selected and deselected, as well as display
elements (LEDs and 7-segment) for convenient startup and diagnostics.
The SOLID-4 series is equipped with 2 OSSDs (transistor safety-related switching outputs)
with M12 connection system as standard features.
To provide the best possible solutions for specific applications, SOLID-4 series devices are
available in various resolutions and protective field heights.
1.1 Certifications
Company
Leuze electronic GmbH + Co. KG in D-73277 Owen - Teck, Germany, has a certified
quality assurance system in compliance with ISO 9001.
Products
SOLID-4 Safety Light Curtains are developed and manufactured in compliance with
applicable European directives and standards.
EC Prototype Test in accordance with
EN IEC 61496-1 and prEN IEC 61496-2
carried out by:
TÜV PRODUCT SERVICE GmbH, IQSE
Ridlerstrasse 65
D-80339 Munich

General
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1.2 Symbols and terms
Symbols used
Table 1.2-1: Symbols
Warning sign – This symbol indicates possible dangers.
Please pay especially close attention to these instructions!
Sign indicating important information.
➢A note, which also refers to a course of action, provides informa-
tion about special attributes or describes setting procedures.
Symbols for SOLID-4 Transmitter
General transmitter symbol
Transmitter not active
Transmitter active
Symbols for SOLID-4 Receiver
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
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Terms used in this manual
Table 1.2-2: Terms/terminology, SOLID-4 Safety Light Curtains
Access guarding Detection of a person’s body on entry into the danger zone is
required.
AOPD Active Opto-electronic Protective Device
AOPD response time Time between penetration/entry into the active protective field of
the AOPD and when the OSSDs actually switch off.
AutoReset When an error indication occurs, caused, for example, by faulty
external wiring, the AOPD attempts to start again. If the error no
longer exists, the AOPD returns to the normal state.
Contactor monitoring
(EDM)
The contactor monitoring monitors the normally closed contacts
of downstream positive-guided contactors and relays.
Danger zone guarding Requires detection in the foot/leg area
EDM External Device Monitoring
FC Feedback circuit for EDM
OSSD1
OSSD2
Safety-related switching output
Output Signal Switching Device
Point of operation
guarding
Requires finger, hand or arm detection
RES Start/REStart interlock.
Scan All beams, beginning with the synchronization beam, are pulsed
by the transmitter in cycles one after the other.
SD4 SOLID-4 consisting of transmitter and receiver
SD4R SOLID-4 Receiver
SD4R-E SOLID-4 Receiver with selectable start/restart interlock and con-
tactor monitoring function (EDM)
SD4T SOLID-4 Transmitter
SingleScan A switch-off is made if a beam is interrupted in the first scan of the
Light Curtain.
SOLID-4E SOLID-4 consisting of SD4T Transmitter and SD4R-E Receiver
Start/
restart interlock
(RES)
RES prevents automatic start after the supply voltage has been
turned on and after the protective field has been penetrated/
entered.
TC1/TC2 Transmission channel 1 and transmission channel 2

General
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1.3 SOLID-4 selection
SD4trr-hhhhvk
SOLID-4
t - Type of device
T: Transmitter
R: Receiver
rr - Resolution/range
14: 14 mm / 0.3 – 6 m
20: 20 mm / 0.7 – 14 m
30: 30 mm / 0.5 – 9 m
40: 40 mm / 0.9 – 20 m
90: 90 mm / 0.9 – 20 m
hhhh – Protective field heights
150 ... 1,800 mm
v – Functions (only with receiver)
E: With selectable start/restart interlock and monitoring
function
k – Version/mode (only available with function "E")l
Without
H
G
L
U
Standard model
Host
Guest
L-Shape
U-Shape
Fig. 1.3-1: Selecting a SOLID-4 Safety Light Curtain

Safety
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DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS
2 Safety
Before using the safety sensor, a risk evaluation must be performed according to valid
standards (e.g. EN ISO 14121, EN ISO 12100-1, ISO 13849-1, IEC 61508, EN 62061).
The result of the risk assessment determines the required safety level of the safety sensor
(see Table 2.1-1). For mounting, operating and testing, document "SOLID-4 Safety Light
Curtain" as well as all applicable national and international standards, regulations, rules
and directives must be observed. Relevant and supplied documents must be observed,
printed out and handed to the affected personnel.
Before working with the safety sensor, completely read and understand the documents
applicable to your task.
In particular, the following national and international legal regulations apply for the start-up,
technical inspections and work with safety sensors:
• Machinery directive 2006/42/EC
• Low voltage directive 2006/95/EC
• Electromagnetic compatibility directive 2004/108/EC
• Use of Work Equipment Directive 89/655/EEC supplemented by Directive 95/63 EC
• OSHA 1910 Subpart 0
• Safety regulations
• Accident-prevention regulations and safety rules
• Ordinance on Industrial Safety and Health and Labor Protection Act
• Device Safety Act
Notice!
For safety-related information you may also contact the local authorities (e.g., industrial
inspectorate, employer's liability insurance association, labor inspectorate, occupational
safety and health authority).
2.1 Approved purpose and foreseeable improper operation
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 again.
2.1.1 Proper use
The safety sensor must only be used after it has been selected in accordance with the
respectively applicable instructions and relevant standards, rules and regulations regarding
labor protection and occupational safety, and after it has been installed on the machine,
connected, commissioned, and checked by a competent person.
When selecting the safety sensor it must be ensured that its safety-related capability meets
or exceeds the required performance level PLrascertained in the risk assessment.

Safety
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The following table shows the safety-related characteristic parameters of the SOLID-4
Safety Light Curtain.
Table 2.1-1: Safety-related characteristic parameters of the SOLID-4 Safety Light
Curtain
• The safety sensor protects persons at access points or at points of operation of
machines and plants.
• The safety sensor with vertical mounting detects the penetration by fingers and hands at
points of operation or by the body at access points.
• The safety sensor only detects persons upon entry to the danger zone; it does not detect
persons who are located within the danger zone. For this reason, a start/restart interlock
is mandatory.
• The safety sensor with horizontal mounting detects persons who are located within the
danger zone (presence detection).
• 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 parts subject to wear and tear do not extend the service life.
2.1.2 Foreseeable misuse
In principle, the safety sensor is not suitable as a protective device in case of:
• danger of objects being expelled or hot or dangerous liquids spurting from the danger
zone
•applications in explosive or easily flammable atmospheres
Type in accordance with IEC/EN 61496 Type 4
SIL in accordance with IEC 61508 SIL 3
SILCL in accordance with IEC/EN 62061 SILCL 3
Performance Level (PL) in accordance with ISO 13849-1: 2008 PL e
Category in accordance with ISO 13849 Cat. 4
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
6.0 x 10-9 1/h
7.3 x 10-9 1/h
On request
Service life (TM) 20 years

Safety
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2.2 Competent personnel
Prerequisites for competent personnel:
• he has a suitable technical education
• he knows the rules and regulations for occupational safety, 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
2.3 Responsibility for safety
Manufacturer and operating company must ensure that the machine and 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 starting-up 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 occupational safety and safety at work
• regular testing by competent personnel
2.4 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 9).
• changes (e.g., constructional) are made to the safety sensor

Safety
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2.5 SOLID-4 Safety Light Curtains with a resolution of 14 mm to 40 mm
are used for point of operation guarding, preferably in a vertical position.
(See Fig. 6.1-1). Depending on the resolution selected, they can detect:
Warning!
Safety Light Curtains with > 40 mm resolution are not suitable for protection of points of
operation for which finger, hand or arm resolution is required.
2.6 SOLID-4 Safety Light Curtains with a resolution of ≥40 mm
are preferably used for danger zone guarding (see Fig. 6.1-2). Predominantly in a
horizontal position, the presence of people within the protective field is continuously
monitored.
Note!
As an alternative to horizontal installation of Safety Light Curtains for danger zone
guarding, a Safety Laser Scanner with configurable protective field can be used if safety
category 3/PL d acc. to ISO 13849 is sufficient (information on ROTOSCAN Safety Laser
Scanners can be obtained via our branch offices and partners or at www.leuze.de).
Device type Resolution Detection with
persons age
14 and over
Range Preferred area of
application
SD4T 14-.. /
SD4R 14-..
14 mm Finger 0.3 to 6 m Point of operation
guarding
SD4T 20-.. /
SD4R 20-..
20 mm Hand 0.7 to 14 m Point of operation
guarding
SD4T 30-.. /
SD4R 30-..
30 mm Hand 0.5 to 9 m Point of operation
guarding
SD4T 40-.. /
SD4R 40-..
40 mm Arm 0.9 to 20 m Point of operation
guarding
Table 2.5-1: SOLID-4 Safety Light Curtains for point of operation guarding
Device type Resolution Detection with
persons age
14 and over
Range Preferred area of
application
SD4T 40-.. /
SD4R 40-..
40 mm From the feet
upwards
0.9 to 20 m Danger zone
guarding
SD4T 90-.. /
SD4R 90-..
90 mm From the thigh
upwards
0.9 to 20 m Danger zone
guarding
Table 2.6-1: SOLID-4 Safety Light Curtains for danger zone guarding

Safety
14 SOLID-4 Leuze electronic
DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS
2.7 Additional safety instructions for access guarding with SOLID-4
Warning!
SOLID-4 Safety Light Curtains with a resolution of 14, 20, 30 or 40 mm detect hands, arms
or bodies of a person entering the danger zone, and therefore can be placed closer to the
danger zone than Safety Light Curtains with a resolution of 90 mm. In this case, the height
of the highest and lowest beam above the reference plane must be selected in accordance
with EN ISO 3857.
It applies for all versions that people are only detected during the access, their presence in
the danger zone, however, is not detected! When one or more beams are interrupted by a
person, the machine control unit must therefore go into safe interlock.
The start/restart interlock function is therefore obligatory for access guarding! The start/
restart button for unlocking the device must be mounted in such a way that it cannot be
reached from inside the danger zone and the entire danger zone is fully visible from its
installation position. For this, see also Chapter 6.1.3.

System setup and possible uses
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3 System setup and possible uses
3.1 The opto-electronic protective device
Mode of operation
SOLID-4 consists of an SD4T transmitter and an SD4R receiver. Beginning with the first
beam (the synchronizing beam) directly after the display panel, the transmitter pulses
beam for beam in rapid sequence. The synchronization between transmitter and receiver is
performed optically.
The SD4R receiver recognizes the specially formed pulse bundles of the transmitter beams
and opens the corresponding receiver elements in sequence in the same rhythm. A
protective field is consequently formed in the area between the transmitter and receiver,
the height of which depends on the geometrical dimensions of the optical protective device,
the width of which depends on the distance selected between the transmitter and receiver
within the permissible range.
Basic functions, such as start/restart interlock and/or contactor monitoring, can optionally
be performed by the electronics of receiver model SD4R-E. As a result, no downstream
Safety Interface Device is generally necessary if receiver model SD4R-E is chosen.
a = Transmitter
b = Receiver
Fig. 3.1-1: Working principle of the opto-electronic protective device
a
b

System setup and possible uses
16 SOLID-4 Leuze electronic
DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS
3.2 Cascading option
To implement multiple linked protective fields, SOLID-4E Safety Light Curtains can be
switched one after the other by cascading via plug-in cable connections or as fixed-
connected L or U-shapes.
Cascading devices makes it possible to implement adjacent protective fields, for rear area
protection without any additional expense for control and connection, for example. The host
system is responsible here for all processor tasks, displays and the receiver-side interfaces
to the machine and control devices.
a = SDT transmitter, host (H)
b = SDT transmitter, guest (G) c = SDR receiver, host (H) d = SDR receiver, guest (G)
Fig. 3.2-1: Cascaded system setup with cable connection
a = SDT transmitter, host (H)
b = SDT transmitter, guest (G) c = SDR receiver, host (H) d = SDR receiver, guest (G)
e = Optional guest for U-shape
Fig. 3.2-2: Cascaded system setup as fixed-connected L or U-shape
c
a
bd
c
a
bd
e

System setup and possible uses
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The following limits must be observed:
• The height of the protective field for the first Light Curtain (host) must be at least 225mm.
• Ensure that the required range of the cascaded system is within the maximum range of
all individual components.
• The maximum number of beams of all components must not exceed 240. For the number
of beams n, for the individual components, please refer to the tables in Chapter 11.
• The connection cables between the individual components are part of the guest. The
standard length is 300 mm. The connection to the host is made with an M12 plug.
An additional terminating plug must be used to be able to operate a host-guest without
connected guest (see Chapter 12.3).
Note!
With cascaded devices the response time of the entire system is always produced by the
response time of the individual devices used.
Warning!
With fixed-connected L and U-shapes, the resolution at the point of intersection can be
greater than the resolution of the individual devices used (see L and U-Shape datasheet).
Devices with different resolutions can be combined for the variant with connection cable.
Only devices with the same resolution can be combined for the variant with fixed-
connected L and U-shape. All cascadable devices are only available as extended version
with integrated start/restart interlock, contactor monitoring and reversible transmission
channels.
Warning!
The safety distance must be calculated in accordance with the set resolution and the
response time of the entire system (see Chapter 6).

Functions
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4 Functions
4.1 Selectable functions of the SD4T Transmitter
4.1.1 Transmission channel
The infrared beams are modulated with specially shaped pulse bundles so that they are
distinct from ambient light and undisturbed operation is consequently ensured. Welding
sparks or warning flash lights from passing forklifts do not having any effect on the
protective field.
If two protective fields are located directly next to each other for two adjacent machines,
measures must, however, be implemented so that the optical protective devices do not
affect each other.
Both transmitters should first be set up "back to back" so that the beams run in opposite
directions. It is consequently impossible for them to affect each other.
Another possible way to suppress mutual influences is to switch one of the two protective
devices from transmission channel 1 to 2, thereby switching them to differently formed
pulse bundles. This solution should be considered when more than two optical protective
devices must be arranged next to each other.
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. You will find more detailed
information in Chapter 7.
4.2 Selectable functions of the SD4R-E Receiver
4.2.1 Transmission channel
If the corresponding transmitter is switched to transmission channel 2, the receiver must
also be set to transmission channel 2. For this, see also Chapter 7.
a = AOPD "A" transmission channel 1
b = AOPD "B" transmission channel 2, not affected by AOPD "A"
Fig. 4.1-1: Transmission channel selection
a
b

Functions
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4.2.2 Start/restart interlock (RES)
The start/restart interlock function prevents the safety circuits from being released
automatically when the machine is turned on or the power supply is restored after a power
outage. Only by pressing and releasing the start button within a time window is the receiver
switched to the ON-state.
If the protective field is penetrated, the start/restart interlock function ensures that the
receiver will remain in the OFF state after the protective field is released again. The
receiver will then not be switched back to the ON state until the start button is pressed and
released again within a time window of 0.3 to 4 seconds.
Note!
The start button may not be pressed for longer than 10 seconds. An error message
appears if this is exceeded.
Warning!
Without the start/restart interlock, the receiver outputs immediately switch to the ON state
after the machine has been turned on or the power supply has been restored and after the
protective field has been freed! The operation of the protective device without start/restart
interlock is only permitted in a few exceptional cases and under the conditions of controlling
protective devices in accordance with EN ISO 12100-1 and EN ISO 12100-2. It must in
particular be ensured here that it is impossible to walk or slip through the protective field.
In the case of access guarding applications, the start/restart interlock function is obligatory
due to the fact that only access, and NOT the area between the protective field and the
points of operation is monitored.
Warning!
Before unlocking the start/restart interlock, the operator must be absolutely certain that
nobody is inside the danger zone.
Fig. 4.2-1: Start/restart interlock function in effect when the supply voltage is turned
on
Fig. 4.2-2: Start/restart interlock function after interrupting the protective field
0
I
0
I

Functions
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DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS
Activate the start/restart interlock:
➢with corresponding connection of the SOLID-4E receiver (see Chapter 7)
➢or in the downstream safety interface (e.g. MSI series also for Leuze electronic muting or
control functions)
➢or in the downstream machine control unit
➢or in the downstream safety PLC
If the internal start/restart interlock is activated as described in Chapter 7, the interlock
functions are monitored dynamically. The SD4R-E receiver is only switched back to the
ON-state after the start button has been pressed and released again. A further precondition
here is, of course, that the active protective field is free.
If both the SOLID-4E-internal and a subsequent start/restart interlock are activated, the
SOLID-4E will only perform a reset function with its assigned start button (confirmation).
4.2.3 Contactor monitoring (EDM)
Warning!
The contactor monitoring of the SOLID-4E can be activated with corresponding connection
(see Chapter 7)!
The "Contactor monitoring" function dynamically monitors contactors, relays or valves
downstream from the SOLID-4E. Precondition here are switching elements with positive-
guided feedback contacts (normally closed).
You can implement the contactor monitoring function
➢with corresponding connection of the SOLID-4E receiver (see Chapter 7)
➢or the external contactor monitoring of the downstream safety interface
(e.g. Leuze electronic MSI series)
➢or the contactor monitoring of the downstream safety PLC
(optional, connected via a safety bus)
If the contactor monitoring function is activated (see Chapter 7), it works dynamically, i.e. in
addition to verifying that the feedback circuit is closed before turning on the OSSDs, the
system checks whether the feedback circuit has opened within 500 ms of being enabled
and whether it has closed again within 500 ms when turning off the OSSDs. If this is not the
case, the OSSDs return to the OFF state again after being briefly switched on. An error
code appears on the 7 segment display (F34) and the receiver goes to the error locking
status, from which it can only be returned to normal operation by switching the supply
voltage off and back on again.
Fig. 4.2-3: Contactor monitoring function, combined in this example with RES
interlock