schmersal EX-AZ 415 User manual

EX-AZ 415
Operating instructions
Safety switch
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. he operating inst-
ructions 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 selec-
tion, 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, 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 provi-
ded without liability and is subject to technical modifications.
There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
1.6 Warning about misuse
In case of improper use or manipulation of the safety switch-
gear, personal hazards or damages to machinery or plant
components cannot be excluded when safety switchgear is
used. The relevant requirements of the standard ISO 14119
must be observed.
Content
1 About this document
1.1 Function ..............................................1
1.2 ..................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 ...................................1
1.7 Exclusion of liability .....................................2
2 Product description
2.1 Ordering code .........................................2
2.2 Special versions........................................2
2.3 Destination and use .....................................2
2.4 Technical data .........................................2
2.5  .....................................2
3 Mounting
3.1 General mounting instructions .............................2
3.2 Dimensions ...........................................3
4 Electrical connection
4.1 General information for electrical connection..................3
4.2 Contact variants........................................3
5 Set-up and maintenance
5.1 Functional testing.......................................3
5.2 Maintenance ..........................................3
6 Disassembly and disposal
6.1 Disassembly...........................................3
6.2 Disposal ..............................................3
7 Appendix
7.1 EC Declaration of conformity ..............................4
x.000 / 03.2015 / v.A. - 101187092-EN / F / 2015-03-12 / AE-Nr. 4465
EN Operating instructions. . . . . . . . . . . . .pages 1 to 4
Translation of the original operating instructions

2
Operating instructions
Safety switch EX-AZ 415
EN
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 resul-
ting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary re-
pairs, 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:
EX-AZ 415-➀ZPK-➁-3D
No. Option Description
➀
S1 S2
11 / 11 1 NO Contact
1 NC contact
1 NO Contact 1 NC contact
02 / 11 2 NC 1 NO Contact 1 NC contact
02 / 20 2 NC 2 NO
02 / 02 2 NC 2 NC
➁
1637 Gold-plated contacts
Only if the information described in this operating instruc-
tions manual are realised correctly, the safety function and
therefore the compliance with the Machinery Directive and
the Explosion Protection 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 Destination and use
The safety switch has been designed to prevent, in conjunction with the
control part of a machine, movable safety guards from being opened
before hazardous conditions have been eliminated.
The components can be used in explosion-endangered areas of Zone
22 equipment category 3D. The installation and maintenance require-
ments to the standard series EN 60079 must be met.
The user must evaluate and design the safety chain in ac-
cordance with the relevant standards and the required safety
level.
Conditions for safe operation
Due to their specific impact energy, the components must be fitted with
a protection against mechanical stresses. The specific ambient tempe-
rature range must be observed.
2.4 Technical data
Equipment category: L II 3D
Ex protection: Ex tc IIIC T60°C Dc X
Standards: IEC 60947-5-1, EN 60079-0,
EN 60079-31, BG-GS-ET-15
Enclosure: light-alloy diecast, paint finish
Actuator: zinc-plated brass / aluminium
Max. impact energy: 4 J
Actuating speed: max. 1 ms
Protection class: IP67 to IEC 60529
Contact material: Silver
Contact type: change-over with double break Zb,
or 2 NC contacts, galvanically separated contact bridges
Switching system: A IEC 60947-5-1; slow action, NC contact with
positive break
Connection: screw terminals
Cable section: min. 0.75 mm², max. 1.5 mm²
(including conductor ferrules)
Cable entry: 2 x M20 x 1.5
Rated impulse withstand voltage Uimp:4 kV
Rated insulation voltage Ui:250 V
Thermal test current Ithe:6 A
Utilisation category: AC-15 / DC-13
Rated operating current/voltage Ie/Ue:4 A / 230 VAC 4 A / 24 VDC
Max. fuse rating: 6 A gG D-fuse
Positive break travel: 3.8 mm
Positive break force: min. 31 N
Ambient temperature: –10 °C … +50 °C
Mechanical life: max. 1 million operations
Latching force: 80 - 400 N (adjustable)
Cable gland and locking screws: L II 2GD
Cable cross-section of the cable glands: min. Ø 7 mm;
max. Ø 12 mm
Tightening torques: cover screws: min. 0.6 Nm
Bottom cover screws: min. 0.7 Nm
Cable gland: min. 8 Nm
Locking screw: min. 8 Nm
2.5 Safety classification
Standards: ISO 13849-1
B10d (NC contact): 2.000.000
B10d (NO contact)
at 10% ohmic contact load: 1,000,000
Service life: 20 years
MT
TF
Bdxx
hs/h3600
d
10d op op
op
n
0,1 x nop tcycle
(Specifications can vary depending on the application-specific parame-
ters hop, dop, tcycle as well as the load.)
3. Mounting
3.1 General mounting instructions
Fitting is only authorised in a de-energised condition
The enclosure can be fixed by means of 2 mounting holes. The
mounting holes are accessible after removal of the cover. The use of a
protective ground wire is imperative. The enclosure must not be used
as an end stop. Any mounting position. The mounting position must be
chosen so as to avoid the penetration of dirt in the used holes.
Please observe the recommendations regarding maximum
impact energy, actuating speed and tightening torque in the
technical data.
Mounting of the actuators: See mounting instructions actuators.
Please observe the remarks of the standards ISO 12100,
EN 953 and ISO 14119.

3
EX-AZ 415
Operating instructions
Safety switch
EN
3.2 Dimensions
All measurements in mm.
10,1 22,3
20
8
M20
8,8
28 A
88
84,6
46,5
103,6
26,8
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by autho-
rised personnel in a de-energised condition.
The contact labelling can be found in the wiring compartment of the
switch.
At least one magnetic contact A with positive break contacts
must be integrated in the safety circuit.
Cable glands (included in delivery) are only authorised for permanent
cables. The constructor must provide for the necessary strain relief.
After wiring, dust and soiling must be removed from the wiring compart-
ment.
The conductors of the connecting cables must not obstruct the mo-
vement of the switching lever. Unused openings must be sealed with
EX-certified locking screws (included in delivery).
The distance between the actuator flange and the switch
enclosure must be < 3 mm when the actuator is inserted.
4.2 Contact variants
Contact variants are shown in a de-energised condition with
actuator inserted.
EX-AZ 415-11/11ZPK-3D EX-AZ 415-02/11ZPK-3D
21
13
21
13
22
14
22
14
S2
S1
21
13
11
21
22
14
12
22
S2
S1
EX-AZ 415-02/20ZPK-3D EX-AZ 415-02/02ZPK-3D
13
23
11
21
14
24
12
22
S2
S1
11
21
11
21
12
22
12
22
S2
S1
Legend: A positive break
P actuated
Q not actuated
5. Set-up and maintenance
5.1 Functional testing
The safety function of the safety components must be tested. The
following conditions must be previously checked and met:
- The installation is executed according to the instructions
- The connection is executed correctly
- The cable is correctly executed and connected
- Check the free movement of the actuating element
- The safety component is not damaged
- Remove particles of dust and soiling
- Check cable entry and connections in de-energised condition
5.2 Maintenance
In case of correct installation in accordance with the instructions
described above, the component requires little maintenance. For use in
extreme conditions, we recommend routine maintenance including the
following steps:
1. Check the correct fixing of the actuator and the safety switchgear
2. Remove particles of dust and soiling
3. Check cable entry and connections in a de-energised condition
Do not open the device when live.
Adequate measures must be taken to ensure protection
against tampering either to prevent tampering of the safety
guard, for instance by means of replacement actuators.
Damaged or defective components must be replaced.
6. Disassembly and disposal
6.1 Disassembly
The safety switchgear must be disassembled in a de-energised condi-
tion only.
6.2 Disposal
The safety switchgear must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.

4
Operating instructions
Safety switch EX-AZ 415
EN
EX-AZ415-B-EN
7. Appendix
The currently valid declaration of conformity can be down-
loaded from the internet at www.schmersal.net.
7.1 EC Declaration of conformity
Name of the safety component: EX-AZ 415
L
II 3D Ex tc IIIC T60°C Dc X
Description of the safety component: Positive break position switch with
separate actuator for safety functions
Relevant EC-Directives: 2006/42/EC EC-Machinery Directive
94/9/EC EC-Explosion Protection Directive (ATEX)
Used harmonized standards: IEC 60947-5-1, EN 60079-0, EN 60079-31
Person authorized for the compilation
of the technical documentation:
Oliver Wacker
Möddinghofe 30
42279 Wuppertal
K. A. Schmersal GmbH & Co. KG
Möddinghofe 30, D - 42279 Wuppertal
Postfach 24 02 63, D - 42232 Wuppertal
Phone: +49 - (0)2 02 - 64 74 - 0
Telefax: +49 - (0)2 02 - 64 74 - 1 00
E-Mail: [email protected]
Internet: http://www.schmersal.com
Place and date of issue: Wuppertal, December 9, 2014
Authorised signature
Philip Schmersal
Managing Director
EC Declaration of conformity
K. A. Schmersal GmbH & Co. KG
Möddinghofe 30
42279 Wuppertal
Germany
Internet: www.schmersal.com
We hereby certify that the hereafter described safety components both in its basic design and const-
ruction conform to the applicable European Directives.
Translation of the original
Declaration of Conformity