schmersal EX-AZM 161 User manual

EX-AZM 161
Operating instructions
Solenoid interlock
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 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
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.
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. The relevant
requirements of the standard ISO 14119 must be observed.
Content
1 About this document
1.1 Function ..............................................1
1.2 Target group: authorised qualied 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 Purpose ..............................................2
2.4 Technical data .........................................2
2.5 Safety classication of the interlocking function................3
2.6 Safety classication of the guard locking function ..............3
3 Mounting
3.1 General mounting instructions .............................3
3.2 Dimensions ...........................................3
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.......................................5
5.2 Maintenance ..........................................5
6 Disassembly and disposal
6.1 Disassembly...........................................5
6.2 Disposal ..............................................5
7 EU Declaration of conformity
x.000 / 01.2020 / v.A. - 101187361-EN / M / 2019-12-10 / AE-Nr. 11759
EN Operating instructions. . . . . . . . . . . . .pages 1 to 6
Original

2
Operating instructions
Solenoid interlock EX-AZM 161
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
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:
EX-AZM 161➀-12/12-➁K➂-024-3D
No. Option Description
➀
SK Screw terminals
CC Cage clamps
➁
Latching force 5 N
R Latching force 30 N
➂
Power to unlock
A Power to lock
Only if the information described in this operating instructions
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 Purpose
The solenoid interlock 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 potentially explosive atmospheres of
Zone 22 equipment category 3D. The installation and maintenance
requirements to the standard series EN 60079 must be met.
Interlocks with power to lock principle may only be used in
special cases after a thorough evaluation of the accident risk,
since the safety guard can be opened immediately on failure
of the power supply or upon activation of the main switch.
The safety switchgears are classified according to ISO 14119
as type 2 interlocking devices.
Manual release (for set-up, maintenance, etc.)
The manual release is realised by turning the triangular key (M5
triangular key available as accessory), so that the locking bolt is pulled
into the unlocking position. The normal locking function is only restored
after the triangular key has been returned to its original position. After
being put into operation, the manual release must be secured by
installing the plastic cover, which is included in delivery.
Manual release
Conditions for safe operation
Due to the specific impact energy, the components must be fitted
with a protection against mechanical stresses. The specific ambient
temperature range must be observed. The user must provide for a
protection against the permanent influence of UV rays.
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.
2.4 Technical data
Designation in accordance with the ATEX Directive: DII 3GD
Designation in accordance with standards: Ex tc IIIC T80°C Dc X
Applied standards: IEC 60947-5-1, EN 60079-0, EN 60079-31
Protective enclosure (option): Metal, coated
Actuator and locking bolt: stainless steel 1.4301
Contact material: Silver
Coding level according to ISO 14119: low
Ambient temperature: −10 °C … +50 °C
Protection class: IP67
Contact type: Change-over with double break Zb,
galvanically separated contact bridges
Applied standards: B IEC 60947-5-1, slow action,
NC contact with positive break
Positive break travel (unlocked): 9.5 mm
Positive break force (unlocked): 10 N for each NC contact
fitted
Connection: screw terminals or cage clamps
Cable section: 1.5 mm² (including conductor ferrules)
Cable entry: 4 x M16 x 1.5
Holding force:
- FZh: 2,000 N
- Fmax: 2,600 N
Latching force: 5 N
- Ordering suffix R: 30 N
Actuating speed: max. 1 m/s
Actuating frequency: max. 1,000 operations/h
Mechanical life: max. 1,000,000 million operations
Max. impact energy: without mechanical protective enclosure: 1 J
with mechanical enclosure: 7 J
Tightening torque:
- Cover screws: min. 0.6 Nm
- Cable gland / locking screws: 3 Nm
Cable glands: D II 2GD
Cable cross-section: min. Ø 5 mm, max. Ø 10 mm
Electrical data:
Utilisation category: AC-15, DC-13
Rated operating current/voltage Ie/Ue:4 A / 230 VAC
2.5 A / 24 VDC
Rated impulse withstand voltage Uimp:4 kV
Rated insulation voltage Ui:250 V
Thermal test current Ithe: 6 A
Max. fuse rating: 6 A gG D-fuse
Required rated short-circuit current: 1,000 A
Rated control voltage Us:24 VDC
24 VAC / 50/60 Hz
110 VAC / 50/60 Hz
Electrical data – Magnet control:
Magnet switch-on time: 100 %
Power consumption: max. 10 W
Accepted test pulse duration on input signal: ≤ 5.0 ms
- With test pulse interval of: ≥ 50 ms

3
EX-AZM 161
Operating instructions
Solenoid interlock
EN
2.5 Safety classification of the interlocking function
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
B10D NC contact: 2,000,000
B10D NO contact at 10% ohmic contact load: 1,000,000
Mission time: 20 years
* If a fault exclusion to the 1-channel mechanics is authorised.
MT
TF
Bdxx
hs/h3600
D
10Dopop
op
n
0,1 x n
op
t
cycle
(Determined values can vary depending on the application-specific
parameters hop, dop and tcycle as well as the load.)
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.
2.6 Safety classification of the guard locking function
If the device is used as an interlock for personal safety, a safety
classification of the guard locking function is required.
When classifying the interlock function, a distinction must be made
between monitoring of the interlock function (locking function) and
controlling the unlocking function.
The following safety classification of the unlocking function is based on
the application of the principle of safety energy disconnection for the
solenoid supply
The classification of the release function is only valid for
devices with monitored guard locking function and in the
power to unlock version (see ordering code).
A fault exclusion for the locking device of the solenoid interlock can be
assumed by a safety external energy disconnection.
In this case, the locking device of the solenoid interlock does not have
an effect on the failure probability of the unlock function.
The safety level of the unlock function is determined exclusively by the
external safety power shutdown.
A1
A2
+24 VDC
PL ?
PFH
d
?
0 VDC
Safety power
shutdown
Solenoid inter-
lock
Guard locking
function
Fault exclusion with regard to wiring routing must be
observed.
If for a certain application the power to unlock version
of a solenoid interlock cannot be used, for this exception
an interlock with power to lock can be used if additional
safety measure need to be realised that have an equivalent
safety level.
3. Mounting
3.1 General mounting instructions
Fitting is only authorised in a de-energised condition
The enclosure can be fixed by means of 3 mounting holes. The
solenoid interlock is double insulated. The use of an earth wire is
not authorised. 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. The unused holes must
be sealed by means of the slot sealing plugs after assembly.
Please observe the relevant requirements of the standards
ISO 12100, ISO 14119 and ISO 14120.
Mounting of the actuators: See mounting instructions actuators.
The actuator must be permanently fitted to the safety guards
and protected against displacement by suitable measures
(tamperproof screws, gluing, drilling of the screw heads).
3.2 Dimensions
All measurements in mm.
Solenoid interlock
30
90
25
130
26 30
188
6
6
6
6
8
22,5
20 32
72
26 104
28

4
Operating instructions
Solenoid interlock EX-AZM 161
EN
Solenoid interlock with prorective enclosure
The component must be mechanically protected. In order
to provide for increased mechanical protection (7Y impact
resistance), the solenoid interlock can be fitted with an
additional protective enclosure (available as accessory).
Fitting of the additional mechanical protective enclosure
(Ordering code 101213413 incl. mounting plate)
• Fit the base plate
• Fix the solenoid interlock
• Fix the protective cover by means of 2 screws
20
6,5
8,5
23
278
5
198
221
238
261
105
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.
If the risk analysis indicates the use of a monitored interlock
they are to be connected in the safety circuit with the contacts
indicated with the symbol .
The contact labelling can be found in the wiring compartment of the
switch.
Cable glands (included in delivery) are only authorised for permanent
cables. The constructor must provide for the necessary strain relief.
Unused cable entries must be sealed by means of locking screws
(included in delivery). After wiring, the cover screws must be tightened
uniformly in accordance with the technical data.
Settle length of the conductor
0.5 ... 2.5 mm²
SK: 7 mm
CC: 5 ... 6 mm
4.2 Contact variants
Contacts shown in a de-energised condition and with the actuator
inserted.
Power to unlock Power to lock
EX-AZM 161SK-12/12RK-3D
EX-AZM 161CC-12/12RK-3D
EX-AZM 161SK-12/12RKA-3D
EX-AZM 161CC-12/12RKA-3D
Q
A1
A1
71
71
51
51
63
63
64
64
72
72
52
52
13 21 41 4222 14
A2
A2
13
21
41 42
22
14 Q
A1
A1
71
71
51
51
63
63
64
64
72
72
52
52
13
13
21
21
41
41
42
42
22
22
14
14
A2
A2
P
Q
Legend:
B Positive break
Monitoring the interlock according to ISO 14119
H Actuated
I Not actuated
Information for the selection of suitable safety-monitoring
modules can be found in the Schmersal catalogues or in the
online catalogue on the Internet: www.schmersal.net.

5
EX-AZM 161
Operating instructions
Solenoid interlock
EN
5. Set-up and maintenance
The installation, operation and maintenance must be
executed by qualified professionals. The requirements to be
met for the installation and the maintenance can be found in
this operating instructions manual. Do not expose the device
to mechanical and/or thermal loads or stresses, which exceed
the limits specified in the operating instructions manual.
For the set-up and the operation of the safety switchgear,
the applicable (also national) safety and accident prevention
regulations as well as the generally acknowledged codes of
practice of technology must be observed.
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
• The safety component is not damaged
• Remove particles of dust and soiling.
• Check cable entry and connections.
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
Caution: avoid electrostatic charging. Clean with damp cloth.
Do not open the device when live.
Damaged or defective components must be replaced.
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.
For explosion protection reasons, the component must be
exchanged after max. 1 million operations.
6. Disassembly and disposal
6.1 Disassembly
The safety switchgear must be disassembled in a de-energised
condition only.
6.2 Disposal
The safety switchgear must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.

6EN
EX-AZM161-F-EN
Operating instructions
Solenoid interlock EX-AZM 161
7. EU Declaration of conformity
K.A. Schmersal GmbH & Co. KG
Möddinghofe 30, 42279 Wuppertal
Germany
Phone: [phone]
Telefax: [phone]
E-Mail: [email protected]
Internet: www.schmersal.com
Place and date of issue: Wuppertal, December 6, 2019
Authorised signature
Philip Schmersal
Managing Director
EU Declaration of conformity
Original K.A. Schmersal GmbH & Co. KG
Möddinghofe 30
42279 Wuppertal
Germany
Internet: www.schmersal.com
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: EX-AZM 161
Type: see ordering code
Marking:
D II 3D Ex tc IIIC T80°C Dc X
Description of the component: Interlocking device with electromagnetic interlock
for safety functions
Relevant Directives: Machinery Directive
EMC-Directive
Explosion Protection Directive (ATEX)
RoHS-Directive
2006/42/EC
2014/30/EU
2014/34/EU
2011/65/EU
Applied standards: DIN EN 60947-5-1:2018,
DIN EN ISO 14119:2014,
EN 60079-0:2012 + A11:2013,
EN 60079-31:2014
Person authorised for the compilation
of the technical documentation:
Oliver Wacker
Möddinghofe 30
42279 Wuppertal
The currently valid declaration of conformity can be
downloaded from the internet at www.schmersal.net.