EUCHNER TQ Serie Manual De Instrucciones página 6

Operating Instructions
Safety Switch TQ...
Auxiliary release with screwdriver
Important!
Use only in an emergency!
After release the screw must be tightened to 0.3
f
to max. 0.5 Nm.
In the event of malfunctions, the guard locking can
be released with the auxiliary release irrespective
of the state of the solenoid.
The guard locking monitoring contacts are opened
when the auxiliary release is actuated.
Actuating auxiliary release
Screwdriver
Fig. 2: Auxiliary release with screwdriver
1. Remove screw on the side of the safety switch
(under the actuating slot).
2. Using a small screwdriver, press the tongue
inside in the direction of the LED until the
actuator is released.
Guard locking is released.
¨
Important!
The actuator must not be under tensile stress
f
during manual release.
To prevent tampering, the auxiliary release must
f
be sealed (with sealing lacquer, for example)
before the switch is set up.
The locking screw must be screwed back in and
f
sealed (with sealing lacquer, for example) after
mounting and after every use of the auxiliary
release. Tightening torque 0.5 Nm.
Auxiliary release with triangular
wedge
Important!
Always turn triangular key to the respective
f
end stop!
If the key is not turned to the end stop, incorrect
f
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 ad-
f
justing screws should be secured (with Loctite,
for example).
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.
The locking screw of the auxiliary release must
f
be sealed prior to setup (with sealing lacquer,
for example).
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 individual
f
wires over a length of 6 mm to ensure a safe
±1
contact.
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 area.
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.
6
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.
Declaration of conformity
The product complies with the requirements accord-
ing to Machinery Directive 2006/42/EC.
The EU declaration of conformity can be found at
www.euchner.com. Enter the order number of your
device in the search box. The document is available
under Downloads.
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