Operating instructions
Safety switch
Operating instructions. . . . . . . . . . . . .pages 1 to 6
EN
Original
AZ 17 I
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 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
selection, mounting and integration of the components.
1.3 Explanation of the symbols used
Content
1 About this document
1.1 Function ..............................................1
1.2 Target group: authorised qualied 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 ...................................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 Safety classication .....................................2
3 Mounting
3.1 General mounting instructions .............................2
3.2 Dimensions ...........................................3
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 machine or plant.
The safety switchgear must be exclusively used in accordance with
the versions listed below or for the applications authorised by the
manufacturer. 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
instructions 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
provided without liability and is subject to technical modifications.
x.000 / 04.2016 / v.A. - 103012221-EN / B / 2016-03-15 / AE-Nr. 5874
4 Electrical connection
4.1 General information for electrical connection..................4
4.2 Contact variants........................................4
5 Set-up and maintenance
5.1 Functional testing.......................................4
5.2 Maintenance ..........................................4
6 Disassembly and disposal
6.1 Disassembly...........................................4
6.2 Disposal ..............................................4
7 EU Declaration of conformity
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 switchgear, 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.
EN
1
Operating instructions
MT
Bdxxhs/h3600
0,1 x n
op
t
cycle
Safety switch
AZ 17 I
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 resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary repairs, 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:
AZ 17-➀Z➁I-➂-
➃
No. Option Description
11 1 NO / 1 NC
➀
02 2 NC
➁
Latching force max. 5 N
R Latching force 30 N
➂
M16 cable gland
ST M12 x 1 connector
B1 Straight actuator B1 included
➃
B5 Angled actuator B5 included
B6L Flexible actuator for
left-hand side door hinge B6L included
B6R Flexible actuator for
right-hand side door hinge B6L included
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefore
the compliance with the Machinery 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.
2.4 Technical data
Standards: IEC 60947-5-1; BG-GS-ET-15
Enclosure: glass-fibre reinforced thermo-
plastic, self-extinguishing
Actuator: stainless steel 1.4301
Coding level according to ISO 14119: high
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
acc. IEC 60947-5-1 slow action,
NC contact with positive break
Connection: cut clamp terminals
or connector M12, 4-pole
Cable section: 0.75...1.0 mm², flexible
Rated impulse withstand voltage U
: 4 kV
imp
Rated insulation voltage Ui: 250 V
Thermal test current I
: 10 A
the
Utilisation category: AC-15
Rated operating current/voltage Ie/Ue: 4 A / 230 VAC
Required short-circuit current: 1000 A
Max. fuse rating: 6 A gG D-fuse
Positive break travel: 11 mm
Positive break force: each NC contact 17 N
Ambient temperature: −30 °C … + 80 °C
Mechanical life: > 1 million operations
Actuating speed: max. 2 m/s
Actuating frequency: max. 2000 operations/h
Latching force: 5 N
- Ordering suffix R: 30 N
2.5 Safety classification
Standards: ISO 13849-1
Envisaged structure:
- Basically: applicable up to Cat. 1 / PL c
- With 2-channel usage and
fault exclusion mechanism*: applicable up to Cat. 3 / PL d
with suitable logic unit
B
NC contact: 2,000,000
10d
B
NO contact at 10% ohmic contact load: 1,000,000
10d
Service life: 20 years
* If a fault exclusion to the 1-channel mechanics is authorised.
2.3 Destination and use
Safety switches with separate actuators AZ 17 are suitable for moveable safety guards, which need to be closed to ensure the necessary
operational security.
The safety switches are used for applications, in which the hazardous
situation is terminated without delay when the safety guard is opened.
When the safety guard is opened, the NC contacts are positively
opened and the NO contacts are closed.
The safety switchgear units are classified as type 2 interlocking devices in accordance with ISO 14119 and are rated
as highly coded.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level.
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
TF
d
10d op op
n
op
(Determined values can vary depending on the application-specific
parameters hop, dop and t
as well as the load.)
cycle
If multiple safety components are wired in series, the Performance
Level to ISO 13849-1 will be reduced due to the restricted error
detection under certain circumstances.
3. Mounting
3.1 General mounting instructions
The mounting position however must be chosen so that the ingress of
dirt and soiling in the used opening is avoided. Use the supplied base
plate for the fixing. The tightening torque of the fixing screws must not
exceed 150 Ncm. The enclosure must not be used as an end stop. Any
mounting position. The mounting position however must be chosen so
that the ingress of dirt and soiling in the used opening is avoided. The
unused opening must be sealed by means of slot sealing plugs.
2
EN
Operating instructions
d
R min.
R m
R m
b
a
b
31
24
30
33
30
36
30
R min. 50
R min. 50
30
6
R min. 50
R min. 50
Safety switch
AZ 17 I
Mounting of the actuator
The marks on the used actuator opening of the solenoid
interlock and on the actuator must be opposite.
Please observe that, when fixing the switch e.g. by means of rivetting
or welding, the insertion depth of the actuator is not modified. Different
actuator forms are available. The actuators B1 and B5 are preferably
used for sliding and removable safety guards. For hinged guards, the
B6R and B6L actuators.
When the switch is fitted on a hinged safety guard, please ensure that
the point of rotation is located within the range of the upper surface of
the safety switch, in which the actuator hook is inserted (refer to table).
Actuating radii
Key
in.
d
R min.
d
R
d
min
[mm]
[mm]
B6L 50 11 50 11
B6R 50 11 50 11
B1
B5
Actuating radius over the small edge of the actuator
– – – –
– – – –
d
R
min
[mm]
R min.
d
[mm]
Please observe the remarks of the standards ISO 12100,
EN 953 and ISO 14119.
The safety component and the actuator must be permanently
fitted to the safety guards and protected against displacement
by suitable measures (tamperproof screws, gluing, drilling,
pinning).
3.2 Dimensions
All measurements in mm.
AZ 17 safety switch
23
22
Actuator
Straight actuator B1 Angled actuator B5
22
ø 4,2
M16x1,5
30
60
5
8
30
22
20
4,5
4,3
10
22
8,2
ø19
20
ø 4-8
22
20
7,5
13
12
4,3
in.
d
The axis of the hinge must be d mm above and in a parallel plane to the
top surface of the safety switch. The basis setting provides a minimum
radius of Rmin.
Actuator B6L / B6R
The B6L or B6R actuators are set to the smallest radius in factory. To
increase the radius, the setting screws a + b must be turned by means
of a hexagonal key A/F 2.5 mm.
Actuating radius over the wide edge of the actuator
a
ba
23
Flexible actuator B6L Flexible actuator B6R
22
32
b
6
11
23
2
4,3
23
8
4,3
2
22
32
7
7
11
28
+
28
+
23
EN
3
Operating instructions
13
21
14
22
11
21
12
22
13
14
11
12
Safety switch
AZ 17 I
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by
authorised personnel in a de-energised condition.
Cut clamp terminals
The IDC method of termination (cut clamp technology) enables
connecting flexible wires with cable section 0.75…1 mm² without using
conductor ferrules. To this effect, strip the wire for 17...20 mm and insert
it into the cable gland, close the cable gland, push the conductors in the
groove of the cover (refer to wiring example) and screw the cover back.
Alternatingly tighten the cover screws uniformly. Tightening force for the
Torx T10 cover screws 0.7 ... 1 Nm.
17-20mm
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:
1. Check for correct installation of the actuator and the switch
2. Check the integrity of the cable entry and connections
3. Check the switch enclosure for damage
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 for correct installation of the actuator and the switch
2. Remove particles of dust and soiling
3. Check cable entry and connections
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
condition only.
4.2 Contact variants
Contacts are shown with safety guard closed.
AZ 17-11ZK
AZ 17-11ZRK
with connector, A-coding
AZ 17-11ZK-ST
AZ 17-11ZRK-ST
21
22
1234
AZ 17-02ZK
AZ 17-02ZRK
AZ 17-02ZK-ST
AZ 17-02ZRK-ST
21
1234
6.2 Disposal
The safety switchgear must be disposed of in an appropriate manner
in accordance with the national prescriptions and legislations.
22
4
EN
Operating instructions
Safety switch
7. EU Declaration of conformity
EU Declaration of conformity
AZ 17 I
Original K.A. Schmersal GmbH & Co. KG
We hereby certify that the hereafter described components both in their basic design and construction conform
to the applicable European Directives.
Name of the component: AZ 17 I
Type: See ordering code
Description of the component: Positive break position switch with
Relevant Directives: Machinery Directive
Applied standards: DIN EN 60947-5-1:2010,
Möddinghofe 30
42279 Wuppertal
Germany
Internet: www.schmersal.com
separate actuator for safety functions
RoHS-Directive
DIN EN ISO 14119:2014
2006/42/EC
2011/65/EU
Person authorized for the compilation
of the technical documentation:
Place and date of issue: Wuppertal, March 14, 2016
AZ17i-B-EN
Oliver Wacker
Möddinghofe 30
42279 Wuppertal
Authorised signature
Philip Schmersal
Managing Director
The currently valid declaration of conformity can be
downloaded from the internet at www.schmersal.net.
EN
5
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: info@schmersal.com
Internet: http://www.schmersal.com
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