MZM 120
Operating instructions
Safety switch with interlocking function
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 operat-
ing 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 correct functionality of the entire machinery or plant.
The safety switchgear must be exclusively used in accordance with the
versions listed below or for the applications authorised by the manufac-
turer. 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 instruc-
tions manual, labelled with the caution or warning symbol above, 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.
Content
1.2 Target group: authorised qualiied personnel. . . . . . . . . . . . . . . . . .1
1.3 Explanation of the symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.4 Appropriate use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.5 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.6 Warning about misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.7 Exclusion of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.1 Ordering code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.2 Special versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.3 Comprehensive quality insurance to 2006/42/EC . . . . . . . . . . . . . .2
2.4 Destination and use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.6 Safety classiication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3 Mounting
3.1 General mounting instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
4.1 General information for electrical connection. . . . . . . . . . . . . . . . . .4
5 Operating principles and latching force adjustment
5.1 Mode of operation of the safety outputs. . . . . . . . . . . . . . . . . . . . . .4
6.1 Diagnostic LED's . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
6.2 Safety switch with conventional diagnostic output. . . . . . . . . . . . . .5
6.3 Safety switch with serial diagnostic function . . . . . . . . . . . . . . . . . .6
7.1 Functional testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
7.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
8.1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
9 Appendix
9.1 Wiring examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
9.2 Wiring coniguration and connector accessories . . . . . . . . . . . . . . .8
9.3 EC Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
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EN
Operating instructions. . . . . . . . . . . .pages 1 to 10
Translation of the original operating instructions
