6
Operating Instructions
Safety Switch STM…
Auxiliary release with triangular key
Function as for auxiliary release.
Important!
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The actuator must not be under tensile stress
during manual release.
Mounting
NOTICE
Device damage due to improper mounting and
unsuitable ambient conditions
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Safety switches and actuators must not be used
as an end stop.
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Observe EN ISO 14119:2013, sections 5.2 and
5.3, for information about fastening the safety
switch and the actuator.
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Observe EN ISO 14119:2013, section 7, for
information about reducing the possibilities for
bypassing an interlocking device.
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Protect the switch head against damage as well
as penetrating foreign objects such as swarf,
sand and blasting shot, etc.
Changing the actuating direction
B
Figure 2: Changing the actuating direction
1. Insert the actuator in the actuating head.
2. Remove the screws from the actuating head.
3. Set the required direction.
4. Tighten the screws with a torque of 0.8 Nm.
5. Cover the unused actuating slot with the en‑
closed slot cover.
Electrical connection
WARNING
Loss of the safety function due to incorrect
connection.
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Use only safe contacts ( and ) for safety
functions.
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When choosing the insulation material and
wire for the connections, pay attention to the
required temperature resistance and the max.
mechanical load!
Use of the safety switch as guard locking for
personnel protection
At least one contact must be used. It signals
the guard locking state (for terminal assignment,
Use of the safety switch as guard locking for
process protection
At least one contact must be used. Contacts
with the symbol can also be used (for terminal
assignment, see Figure 3).
The following information applies to devices
with cable entry:
1. Use a suitable tool to open the desired inser‑
tion opening.
2. Fit the cable gland with the appropriate degree
of protection.
3. Connect and tighten the terminals with 0.5 Nm
(for terminal assignment, see Figure 3).
4. Check that the cable entry is sealed.
5. Close the switch cover and screw in place
(tightening torque 0.8 Nm).
Function test
WARNING
Fatal injury due to faults during the function test.
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Before carrying out the function test, make sure
that there are no persons in the danger area.
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Observe the valid accident prevention regula‑
tions.
Check the device for correct function after installa‑
tion and after every fault.
Proceed as follows:
Mechanical function test
The actuator must slide easily into the actuating
head. Close the safety guard several times to check
the function. The function of any manual releases
(except for the auxiliary release) must also be tested.
Electrical function test
1. Switch on operating voltage.
2. Close all safety guards and activate guard
locking.
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The machine must not start automatically.
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It must not be possible to open the safety guard.
3. Start the machine function.
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It must not be possible to release guard locking
as long as the dangerous machine function is
active.
4. Stop the machine function and release guard
locking.
¨
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The safety guard must remain locked until there
is no longer any risk of injury (e.g. due to move‑
ments with overtravel).
¨
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It must not be possible to start the machine
function as long as guard locking is released.
Repeat steps 2 ‑ 4 for each safety guard.
Inspection and service
WARNING
Danger of severe injuries due to the loss of the
safety function.
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If damage or wear is found, the complete switch
and actuator assembly must be replaced. Re‑
placement of individual parts or assemblies is
not permitted.
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Check the device for proper function at regular
intervals and after every fault. For informa‑
tion about possible time intervals, refer to
EN ISO 14119:2013, section 8.2.
Inspection of the following is necessary to ensure
trouble‑free long‑term operation:
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correct switching function
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secure mounting of all components
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damage, heavy contamination, dirt and wear
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sealing of cable entry
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loose cable connections or plug connectors.
Information
:
The year of manufacture can be seen
in the bottom, right corner of the type label.
Exclusion of liability and warranty
In case of failure to comply with the conditions for
correct use stated above, or if the safety instruc‑
tions are not followed, or if any servicing is not
performed as required, liability will be excluded and
the warranty void.
Notes about
For use and applications as per the requirements of
, a class 2 power supply according to UL1310
must be used.
EC declaration of conformity
The manufacturer named below herewith declares
that the product fulfills the provisions of the direc‑
tive(s) listed below and that the related standards
have been applied.
EUCHNER GmbH + Co. KG
Kohlhammerstr. 16
D‑70771 Leinfelden‑Echterdingen
Directives applied:
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Machinery directive 2006/42/EC
Standards applied:
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EN 60947‑5‑1:2004 + Cor.:2005 + A1:2009
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EN 14119:2013
The original EC declaration of conformity can also
be found at: www.euchner.de
Service
If service support is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
D‑70771 Leinfelden‑Echterdingen
Service telephone
:
+49 711 7597‑500
Fax
:
+49 711 753316
:
Internet
:
www.euchner.de
