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Operating Instructions
Safety Switch SGP...AS
Scope
These operating instructions are valid for all
SGP...AS. These operating instructions, the docu-
ment Safety information and any available data sheet
form the complete user information for your device.
Important!
Make sure to use the operating instructions
valid for your product version. Please contact the
EUCHNER service team if you have any questions.
Supplementary documents
The overall documentation for this device consists
of the following documents:
Document title
Contents
(document number)
Safety information
Basic safety information
(2525460)
Operating instructions
(this document)
(2099194)
Declaration of con-
Declaration of conformity
formity
Any additions to the
Take any associated additions to
operating instructions
the operating instructions or data
sheets into account.
Important!
Always read all documents to gain a complete
overview of safe installation, setup and use of
the device. The documents can be downloaded
from www.euchner.com. For this purpose, enter
the doc. no. or the order number for the device
in the search box.
Correct use
Safety switches series SGP...AS are operated as
slaves on the safety bus AS-Interface Safety at Work
and function as interlocking devices without guard
locking (type 2). The actuator has a low coding
level. In combination with a movable guard and the
machine control, this safety component prevents
dangerous machine functions from occurring while
the guard is open. A stop command is triggered if
the guard is opened during the dangerous machine
function.
This means:
Starting commands that cause a dangerous ma-
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chine function must become active only when the
guard is closed.
Opening the guard triggers a stop command.
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Closing a guard must not cause automatic starting
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of a dangerous machine function. A separate start
command must be issued. For exceptions, refer to
EN ISO 12100 or relevant C-standards.
Before the device is used, a risk assessment must
be performed on the machine, e.g. in accordance
with the following standards:
EN ISO 13849-1
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EN ISO 12100
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EN IEC 62061
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Correct use includes observing the relevant require-
ments for installation and operation, particularly
based on the following standards:
EN ISO 13849-1
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EN ISO 14119
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EN IEC 60204-1
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Important!
The user is responsible for the proper integration
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of the device into a safe overall system. For this
purpose, the overall system must be validated,
e.g. in accordance with EN ISO 13849-1.
If the simplified method according to section
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6.2.3 of EN ISO 13849-1:2023 is used for
determining the Performance Level (PL), the
PL might be reduced if several devices are
connected in series.
If a data sheet is included with the product, the
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information on the data sheet applies in case of
discrepancies with the operating instructions.
Safety precautions
WARNING
Danger to life due to improper installation or due
to bypassing (tampering). Safety components
perform a personnel protection function.
Safety components must not be bypassed,
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turned away, removed or otherwise rendered
ineffective. On this topic pay attention in partic-
ular to the measures for reducing the possibility
of bypassing according to EN ISO 14119:2013,
section 7.
The switching operation must be triggered only
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by actuators designated for this purpose.
Prevent bypassing by means of replacement
www
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actuators. For this purpose, restrict access to
actuators and to keys for releases, for example.
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Mounting, electrical connection and setup only
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by authorized personnel possessing special
knowledge about handling safety components.
Function
The safety switch monitors the position of movable
guards. The switching contacts are actuated on the
insertion/removal of the actuator.
When the guard is closed, each SGP...AS transmits
a switch-specific, unique safety code sequence
with 8 x 4 bits via the AS-Interface bus. This code
sequence is evaluated by an AS-Interface safety
monitor.
The first positively driven contact is represented
by the AS-Interface input bits D0 and D1, while the
second positively driven contact is represented by
D2 and D3.
The safety switch must be correspondingly config-
ured in the AS-Interface safety monitor (refer to the
operating instructions of the AS-Interface safety
monitor used and the status table).
Selection of the actuator
NOTICE
Damage to the device due to unsuitable actuator.
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Make sure to select the correct actuator (see
table in Fig. 3).
Additionally pay attention to the door radius and
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the mounting options (see Fig. 4).
The following versions are available:
Actuator S...-SN for safety switches without
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insertion funnel.
Actuator S...-LN for safety switches with insertion
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funnel.
Mounting
NOTICE
Device damage due to improper mounting and
unsuitable ambient conditions.
Safety switches and actuators must not be used
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as an end stop.
Observe EN ISO 14119:2013, sections 5.2 and
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5.3, for information about mounting the safety
switch and the actuator.
Observe EN ISO 14119:2013, section 7, for
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information about reducing the possibilities for
bypassing an interlocking device.
Protect the switch head against damage, as well
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as penetrating foreign objects such as swarf,
sand and blasting shot, etc.
The specified IP degree of protection is applica-
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ble only if the housing screws, cable entries and
plug connectors are properly tightened. Observe
the tightening torques.
4
Changing the actuating direction
Fig. 1: Changing the actuating direction
1. Remove the screws from the actuating head.
2. Set the required direction.
3. Tighten the screws with a torque of 0.8 Nm.
4. Cover the unused actuating slot with the en-
closed slot cover.
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 n.c.
3 AS-Interface -
4 n.c.
1
Fig. 2: Terminal assignment of M12 plug connector
The following information applies to devices
with plug connector:
Check that the plug connector is sealed.
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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
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Synchronization time: typ. 3 s
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It may be necessary to set the synchronization time
to higher values. This depends on the application
and the approach speed of the actuator.
With start-up test (corresponding to risk analysis)
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In this operating mode, the guard must be opened
each time prior to restarting in order to perform
the start-up test.
D
C
B
A
3
2
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