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Idiomas disponibles
Operating Instructions
Safety Switch TX...AS1
Auxiliary release
In the event of malfunctions, the guard locking can
be released with the auxiliary release irrespective
of the state of the solenoid.
The half-sequence is sent when the auxiliary release
is actuated.
Actuating auxiliary release
1. Unscrew locking screw.
2. Using a screwdriver, turn the auxiliary release
to
in the direction of the arrow.
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 key release
Function as for auxiliary release.
Important!
The actuator must not be under tensile stress
f
during manual release.
Escape release
This permits opening of a locked guard from the
danger area without tools.
Important!
f
It must be possible to actuate the escape re-
f
lease manually from inside the protected area
without tools.
It must not be possible to reach the escape
f
release from the outside.
The actuator must not be under tensile stress
f
during manual release.
The escape release meets the requirements of
f
Category B according to EN ISO 13849-1.
The half-sequence is sent when the escape release
is actuated.
Emergency release
This permits opening of a locked guard from outside
the danger area without tools.
Important!
It must be possible to operate the emergency
f
release manually from outside the protected
area without tools.
The emergency release must possess a mark-
f
ing indicating that it may be used only in an
emergency.
The actuator must not be under tensile stress
f
during manual release.
The release function meets all other require-
f
ments from EN ISO 14119.
The emergency release meets the requirements
f
of Category B according to EN ISO 13849-1.
The half-sequence is sent when the emergency
release is actuated.
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.
Observe EN ISO 14119:2013, sections 5.2 and
f
5.3, for information about mounting the safety
switch and the actuator.
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).
Changing the actuating direction
A
Fig. 1: Changing the actuating direction
1. Unscrew and open switch cover.
2. Remove actuating head from the switch by
turning and refit in the required position (bayo-
net fastening).
3. Optionally: Fit the supplied locking pins for
protection against twisting (see Fig. 2).
Important!
Fitting the locking pins is not required for cor-
f
rect use.
Locking pins cannot be removed again after they
f
have been fitted.
Fig. 2: Fitting locking pins, closing actuating slot
4. Cover the unused actuating slot with the en-
closed slot cover (see Fig. 2).
5. Close the switch cover and screw in position.
7
Electrical connection
The safety switch is connected to the bus system
with a 4-pin connecting cable with M12 plug connec-
tor via a passive AS-Interface distribution box with a
yellow and black AS-Interface cable.
View of safety switch
plug connector
1 AS-Interface +
4
2 Auxiliary voltage 0 V
3 AS-Interface -
4 Auxiliary voltage 24 V
1
Fig. 3: Terminal assignment of M12 plug connector
The following information applies to devices
with plug connector:
Check that the plug connector is sealed.
f
Setup
Setting the AS‑Interface address
The address can be set prior to or after mounting.
The AS-Interface address of the safety switch is
set using an AS-Interface programming device.
Addresses 1 to 31 are valid.
The unit is programmed by connecting the program-
ming device to the M12 plug connector of the safety
switch with a programming cable.
Address 0 is the default setting on delivery (the
AS-Interface Fault LED is lit during operation).
Configuration in the AS‑Interface safety
monitor
(see operating instructions for the AS-Interface
safety monitor and status table)
The safety switch is configured in the AS-Interface
safety monitor with the AS-Interface address set as
follows, for example:
Dual-channel dependent
f
Synchronization time = infinite
f
In this operating mode, after the guard locking is
released, the guard must be opened each time prior
to restarting.
Dual-channel independent
f
The guard locking is opened and closed using the
output D0. When the guard locking is open, the
safety circuit shuts down. It is not necessary to
open the door. Safety is provided again when the
guard locking is closed.
The dual-channel feature and the door contact
are not tested in this configuration. Additional
measures outside the monitor must be provided
for testing.
Dual-channel conditionally dependent
f
Independent: In-1
f
The guard locking is opened and closed using the
output D0. When the guard locking is open, the
safety circuit shuts down. It is not necessary to
open the door. Safety is provided again when the
guard locking is closed.
The switch is monitored for a malfunction.
Observe the following if the guard locking solenoid
of a TX1. AS1 spring interlock safety switch is
switched on (released) via the second release
contact of a dual-channel safety monitor and a PLC
in the operating mode door locking for duration of
the time delay:
It is not possible to switch off the guard locking
f
solenoid by means of the monitor alone.
The control system (PLC) must therefore switch off
the guard locking solenoid in the locked position via
AS-Interface output D0 = 0 in order to re-establish
the switch-on conditions for the first OSSD.
3
2
∞
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