Leuze electronic ML2R-SR4 Manual de usuario
ML2R-SR4
Safety Relays
SAFE IMPLEMENTATION AND OPERATION
Original operating instructions
EN 2019/05/21 -50127619
We reserve the right to
make technical changes
Leuze electronic ML2R-SR4 2
© 2019
Leuze electronic GmbH + Co. KG
In der Braike 1
D-73277 Owen / Germany
Phone: +49 7021 573-0
Fax: +49 7021 573-199
http://www.leuze.com
Leuze electronic ML2R-SR4 3
1 About this document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Used symbols and signal words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Approved purpose and foreseeable improper operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.2 Foreseeable misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Competent persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Responsibility for safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1 Circuit plan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Starting up the device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.2 Start/restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.2.1 Unlocking start/restart interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.1 Before the initial start-up and following modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.1.1 Checklist – initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.2 To be performed periodically by a competent person . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.3 To be performed daily by the operating personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.3.1 Check list – daily or at change of shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Disposing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
11 Service and support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
13 Order guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
14 EC Declaration of Conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
About this document
Leuze electronic ML2R-SR4 4
1 About this document
1.1 Used symbols and signal words
Table 1.1: Warning symbols and signal words
Table 1.2: Other symbols
Table 1.3: Terms and abbreviations
1.2 Checklists
The checklists (see chapter 8 "Testing") serve as a reference for the machine manufacturer or supplier.
They replace neither testing of the complete machine or system prior to the initial start-up nor their periodic
testing by a competent person. The checklists contain minimum testing requirements. Depending on the
application, other tests may be necessary.
Symbol indicating dangers to persons
NOTICE Signal word for property damage
Indicates dangers that may result in property damage if the measures for danger
avoidance are not followed.
CAUTION Signal word for minor injury
Indicates dangers that may result in minor injury if the measures for danger avoid-
ance are not followed.
WARNING Signal word for serious injury
Indicates dangers that may result in severe or fatal injury if the measures for danger
avoidance are not followed.
DANGER Signal word for life-threatening danger
Indicates dangers with which serious or fatal injury is imminent if the measures for
danger avoidance are not followed.
Symbol for tips
Text passages with this symbol provide you with further information.
Symbols for action steps
Text passages with this symbol instruct you to perform actions.
AOPD
Active Optoelectronic Protective Device
EDM External Device Monitoring
OSSD Output Signal Switching Device
RES Start/REStart interlock
PFHD
Probability of dangerous Failure per Hour
MTTFd
Mean Time To dangerous Failure
PL Performance Level
Safety
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2 Safety
Before using the safety relay, a risk assessment must be performed according to valid standards (e.g.
EN ISO 12100, ISO 13849-1, EN/IEC 61508, EN/IEC 62061). The result of the risk assessment deter-
mines the required safety level of the safety relay (see table 12.1). For mounting, operating and testing,
this document as well as all applicable national and international standards, regulations, rules and direc-
tives must be observed. Relevant and supplied documents must be observed and handed to the affected
personnel.
Before working with the safety relay, 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 relays:
• Machinery directive 2006/42/EC
• Low voltage directive 2014/35/EU
• EMC directive 2014/30/EU
• Use of Work Equipment Directive 89/655/EEC supplemented by Directive 95/63 EC
• OSHA 1910 Subpart O
• Safety regulations
• Accident-prevention regulations and safety rules
• Betriebssicherheitsverordnung (Ordinance on Industrial Safety and Health) and employment
protection act
• Product Safety Law (ProdSG and 9. ProdSV)
2.1 Approved purpose and foreseeable improper operation
2.1.1 Intended use
For safety-related information you may also contact the local authorities (e.g., industrial inspec-
torate, employer's liability insurance association, labor inspectorate, occupational safety and
health authority).
DANGER
Electrically live systems pose a risk of electric shock!
During all conversions, maintenance work and inspections, make certain that the voltage supply is
interrupted and protected against being restarted again.
Only have work on the electrical system and electronics performed by a competent person.
WARNING
A running machine may result in serious injury!
Make certain that the safety relay is correctly connected and that the protective function of the protec-
tive device is ensured.
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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Only if the safety relay is correctly connected and correctly started up is the protective function of the
protective device ensured. To prevent misuse and resulting dangers, the following must be observed:
• These operating instructions are included in the documentation of the system on which the protective
device is mounted and are available to the operating personnel at all times.
• The safety relay is used as a safety monitoring device in combination with safety sensors, switches
and command devices for guarding danger zones or points of operation in machines and systems.
• The safety relay 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
safety at work, and after it has been installed, connected, checked and commissioned by a compe-
tent person.
• The safety relay must only be connected and commissioned in accordance with its specifications
(technical data, environmental conditions, etc.).
• The “Reset” acknowledgment button for unlocking the start/restart interlock must be located outside
of the danger zone.
• The entire danger zone must be visible from the installation site of the acknowledgment button.
• The safety relay must be selected so that its safety-related capability meets or exceeds the required
Performance Level PL ascertained in the risk assessment (see table 12.1).
• The machine or system control must be electrically influenceable so that a switch command sent by
the safety relay results in the immediate shutdown of the dangerous movement.
• The construction of the safety relay must not be altered. When manipulating the safety relay, the pro-
tective function is no longer guaranteed. Manipulating the safety relay also voids all warranty claims
against the manufacturer of the safety relay.
• The safety relay must be tested regularly by a competent person (see chapter 8 "Testing").
• The safety relay 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
Any use other than that defined under the “Approved purpose” or which goes beyond that use is consid-
ered improper use.
Alone, the safety relay is not a complete protective device. It is not suitable for use in the following cases:
• in explosive or easily flammable atmospheres.
• on machines or systems with long stopping times.
2.2 Competent persons
Prerequisites for competent persons:
• 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.
• They know the instructions for the safety relay and the machine.
• They have been instructed by the responsible person on the mounting and operation of the machine
and of the safety relay.
2.3 Responsibility for safety
Manufacturer and operating company must ensure that the machine and implemented safety relay func-
tion 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 relay
• Imparting all relevant information to the operating company
• Adhering to all regulations and directives for the safe starting-up of the machine
Safety
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The company operating 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 persons
2.4 Disclaimer
Leuze electronic GmbH + Co. KG is not liable in the following cases:
• Safety relay 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 8 "Testing").
• Changes (e.g., constructional) are made to the safety relay.
Device description
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3 Device description
The ML2R-SR4 adapter box is used for replacing COMPACTplus series devices with Hirschmann plug
with MLD 530 series devices.
No new cables need to be laid from the machine to the switch cabinet. The safety sensor can be connected
directly to the ML2R-SR4 adapter box.
The cable that was connected to the COMPACTplus can be connected directly to the ML2R-SR4 adapter
box.
Functions
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4 Functions
Muting enable signal
The MLD 530 expects the muting enable signal from the control.
Contactor monitoring
Contactor monitoring is not activated.
Automatic restart
Reset takes place on the MLD 530, the MSI-SR4B-02 integrated in the adapter box works in automatic
restart mode.
Mounting
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5 Mounting
The safety relay in the adapter box is fully prewired.
Install the adapter box at a suitable position close to the COMPACTplus safety sensor .
Connect the COMPACTplus safety sensor to the adapter box.
Start up the safety sensor again.
WARNING
Improper mounting may result in serious injury!
The protective function of the safety relay is only ensured if appropriately and professionally mounted for
the respective, intended area of application.
Only allow competent persons to install the safety relay.
Observe the relevant standards, regulations and these instructions.
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