EUCHNER TQ Serie Mode D'emploi page 6

Operating Instructions
Safety Switch TQ...
Auxiliary release with triangular
wedge
Important!
Always turn triangular key to the respective end
stop.
If the key is not turned to the end stop, incorrect
switching or even damage to the safety switch
may result.
Same function as for auxiliary release with screw-
driver.
Actuating auxiliary release
UNLOCK UNLOCK
Fig. 3: Auxiliary release with triangular wedge
Insert triangular key into the release on the switch
f
and turn 90° to the released position.
Important!
The actuator must not be under tensile stress
during manual release.
Mounting
NOTICE
Device damage due to improper mounting and
unsuitable ambient conditions
Safety switches and actuators must not be used
f
as an end stop.
Insert the actuator into the switch head prior
f
to mounting.
Observe EN ISO 14119:2013, sections 5.2 and
f
5.3, for information about mounting the safety
switch and the actuator.
After a hinged actuator is positioned, the adjust-
f
ing screws should be secured (e.g. with Loctite).
Observe EN ISO 14119:2013, section 7, for
f
information about reducing the possibilities for
bypassing an interlocking device.
Protect the switch head against damage, as well
f
as penetrating foreign objects such as swarf,
sand and blasting shot, etc.
The specified IP degree of protection is applica-
f
ble only if the housing screws, cable entries and
plug connectors are properly tightened. Observe
the tightening torques.
Electrical connection
WARNING
Loss of the safety function due to incorrect
connection.
Use only safe contacts for safety functions.
f
Monitoring contacts must not be used for safety
functions.
When choosing the insulation material and
f
wires for the connections, pay attention to the
required temperature resistance and the max.
mechanical load!
Strip the insulation from the ends of the individ-
f
ual wires over a length of 6 mm to ensure a
±1
reliable contact.
Use of the safety switch as guard locking for
process protection
At least one contact must be used (see Fig. 4
for terminal assignment).
Function test
WARNING
Fatal injury due to faults during the function test.
Before carrying out the function test, make sure
f
that there are no persons in the danger zone.
Observe the valid accident prevention regula-
f
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 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 guards and activate guard locking.
The machine must not start automatically.
¨
It must not be possible to open the guard.
¨
3. Start the machine function.
It must not be possible to release guard locking
¨
as long as the machine function is active.
4. Stop the machine function and release guard
locking.
The guard must remain locked until the process
¨
is no longer at risk.
It must not be possible to start the machine
¨
function as long as guard locking is released.
Repeat steps 2 - 4 for each guard.
Inspection and service
WARNING
Danger of severe injuries due to the loss of the
safety function.
If damage or wear is found, the complete switch
f
and actuator assembly must be replaced. Re-
placement of individual parts or assemblies is
not permitted.
Check the device for proper function at regular
f
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:
correct switching function
f
secure mounting of all components
f
damage, heavy contamination, dirt and wear
f
sealing of cable entry
f
loose cable connections or plug connectors.
f
Info: 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 regula-
tions are not followed, or if any servicing is not
performed as required, liability will be excluded and
the warranty void.
6
EU declaration of conformity
The declaration of conformity is part of the operating
instructions, and it is included as a separate sheet
with the device.
The original EU declaration of conformity can also
be found at: www.euchner.com
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone:
+49 711 7597-500
E-mail:
support@euchner.de
Internet:
www.euchner.com