Operating Instructions Safety Switch TZ...AS
1
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
D-70771 Leinfelden-Echterdingen
Tel. +49/711/75 97-0
Fax +49/711/75 33 16
www.euchner.de
Electrical connection
Electrical connection must be performed only by
authorized personnel.
For use and operation as per the requirements of
(UL) a isolating transformer or a power supply
with secondary overcurrent protection (3 A) must be
used.
The safety switch is connected to the bus system
with a 4-pole connecting cable with M12 plug
connector via a passive AS-Interface distribution box
with a yellow and black AS-Interface cable.
Figure 2: Pin assignment M12 plug connector
Setup
Setup must be performed only by authorized
personnel.
f
Setting the AS-Interface address
The address can be set prior to or after assembly.
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 on the safety
switch with a programming cable.
Address 0 is the default setting on delivery (the AS-
Interface LED
Fault is lit during operation!).
f
Configuration in the AS-Interface safety monitor
(see operating instructions for the AS-Interface safety
monitor)
The safety switch is configured in the AS-Interface
safety monitor with the set AS-Interface address as
follows, for example:
f
dual-channel dependent
f
with start-up test
f
synchronization time = infinite
In this operating mode, the safety guard must be
opened each time prior to restarting in order to
perform the start-up test.
f
dual-channel independent
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.
For the expanded monitor SFM-B02, the following
configuration is possible:
f
dual-channel conditionally dependent
f
independent: In-1
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.
The switch is monitored for malfunction, the door
contact (SK) must not be switched by the guard
locking contact (ÜK).
Observe the following if the interlocking solenoid on
a spring interlock safety switch
TZ1..AS
in the
operating mode
door locking for duration of the time-
delay is switched on (unlocked) via the second
release contact of a dual-channel safety monitor and
a PLC:
f
It is not possible to switch off the interlocking
solenoid by means of the monitor alone.
The control system (PLC) must therefore switch off
the interlocking solenoid in the locked position via
AS-Interface output D0 = 0 in order to re-establish
the switch-on conditions for the first OSSD.
f
The AS-Interface output must be switched on with
D0 = 1 so that the interlocking solenoid can be
unlocked by the second safety output of the monitor.
f
Status signals (not relevant to safety)
The state of the door monitoring contact SK and the
solenoid monitoring contact ÜK can also be polled
by the control system (PLC).
The website www.euchner.de includes connection
examples and support for the diagnostic software.
f
LEDs
The AS-Interface bus status is indicated by two LEDs
(Power, Fault).
Two additional LEDs can be connected via the AS-
Interface bus, e.g. to indicate the status signals (see
Status signals and Technical data).
Function test
f
Mechanical function test
The actuator must slide easily into the actuating head.
Close the safety guard several times to check the
function.
f
Electrical function test
f
Close the safety guard.
Start the machine.
It must
not
be possible to
open
the safety guard!
f
Switch off the machine.
Open the safety guard.
The machine must
not start
when the safety guard
is open!
Service and inspection
No servicing is required, but
regular inspection
of
the following is necessary to ensure trouble-free long-
term operation
f
correct switching function
f
secure mounting of components
f
dirt and wear
f
loose plug connectors.
If damage or wear is found, the complete switch
and actuator assembly must be replaced.
Replacement of individual parts or assemblies,
especially of the actuating head, is not permitted!
The complete safety switch assembly must be replaced
f
after 1 million operating cycles in the case of straight
actuators
f
after 100,000 operating cycles in the case of hinged
actuators.
Exclusion of liability under the following
conditions:
f
if the unit is not used for its intended purpose
f
non-compliance with safety regulations
f
installation and electrical connection not performed
by authorized personnel
f
failure to perform functional checks.
Technical data
Parameters
Value
Housing material
Die-cast alloy
anodized
Degree of protection
IP 67, mating connector plugged
according to IEC 529
Mech. life
1 x 10
6
operating cycles
Ambient temperature
-25...+55°C
Installation position
Any
Approach speed, max.
20 m/min
Actuating force at 20 °C
35 N
Extraction force
30 N
Retention force
10 N
Locking force F
max
2000 N
Locking force F
zh
in accordance
with Test Principles GS-ET-19
Weight
1.07 kg
Switching principle SK, ÜK
Positively driven, slow-action
switching element
EMC protection requirements Acc. to EN 50295 (AS-Interface
standard) and IEC 62026
Interlocking solenoid
Solenoid operating voltage
DC 24 V +10%/-15%
10 W
(auxiliary power on black
Power supply unit with safe isolation
AS-Interface cable)
(IEC 60742, PELV)
Solenoid operating current
350 mA
Duty cycle
100 %
Type of connection
M12 plug connector
AS-Interface data
EA code: 7
Acc. to AS-Interface
ID code: B
specification 2.1
Operating voltage AS-Interface DC 22.5 ... 31.6 V
Total current consumption, max. 45 mA
Valid AS-Interface addresses
1 - 31
AS-Interface inputs
Acc. to AS-Interface Safety at Work
Door monitoring contact SK
D0, D1
Solenoid monitoring contact ÜK D2, D3
AS-Interface outputs
D0
Interlocking solenoid, 1 = solenoid
energized
D1
Red LED, 1 = LED on
D2
Green LED, 1 = LED on
AS-Interface LED Power
Green, AS-Interface voltage present
AS-Interface LED Fault
Red, offline phase or address 0
Figure 3: Dimension drawings
36
a
b
18
110
∅
5,5
46
37
M8
100
36
100
52
+4
23
25
20
110
35
20
15
40
31
M=1,2Nm (4x)
GN RD
Power Fault
0,3
0,3
TZ.L..AS
36
a
b
18
110
∅
5,5
46
37
M8
100
36
100
52
+4
23
25
20
110
35
20
15
40
31
M=1,2Nm (4x)
GN RD
Power Fault
0,3
0,3
TZ.R..AS
Subject to technical modifications; no r
esponsibility is accepted for the accuracy of this information.
© EUCHNER GmbH + Co. KG
0
86963-05-08/09 (T
ranslation of the original operating instructions
)
1
AS-Int
2
Auxiliary voltage 0 V
3
AS-Interface -
4
Auxiliary voltage24 V
View of safety switch
plug connector
4
3
1
2
(F
Zh
=
F
max
) = 1500 N
1.3
