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Operating Instructions
Safety Switch CMS-AS1
Scope
These operating instructions are valid for all safety
switches CMS-AS1... These operating instructions,
the document 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)
(2105099)
Declaration of
Declaration of conformity
conformity
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
The Coded Magnetic Safety switches of series
CMS...AS1 from EUCHNER are operated as slaves
on the safety bus AS‑Interface Safety at Work and
function as safety devices for monitoring movable
guards.
The system consists of read head and actuator. It
forms a non-contact, magnetically coded interlock-
ing device with low coding level (type 4).
In combination with a guard, this system prevents
dangerous machine functions from being performed
for as long as the guard is opened. A stop command
is triggered if the guard is opened during the dan-
gerous machine function.
Before safety components are used, a risk assess-
ment must be performed on the machine, e.g. in
accordance with:
EN ISO 13849-1
f
EN ISO 12100
f
EN 62061
f
Correct use includes observing the relevant require-
ments for installation and operation, e.g.:
EN ISO 14119
f
EN 60204-1
f
Important!
The user is responsible for safe integration of
f
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.
Correct use requires observing the permissible
f
operating parameters (see technical data).
If a data sheet is included with the product, the
f
information on the data sheet applies in case of
discrepancies with the operating instructions.
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.
General safety precautions
Safety components fulfill personnel protection
functions. Incorrect installation or tampering can
lead to severe injuries to personnel.
Check the safe function of the safeguard par-
ticularly
after any setup work
f
each time after replacement of a CMS com-
f
ponent
after an extended period without use
f
after every fault
f
Independent of these checks, the safe function
www
of the safeguard should be checked at suitable
www
intervals as part of the maintenance schedule.
Warning! Danger of fatal injury in the event of
www
incorrect connection or incorrect use.
Safety components must not be bypassed (bridg-
ing of contacts), turned away, removed or other-
wise rendered ineffective. Pay particular attention
to EN ISO 14119: 2013, section 7, regarding the
possibilities for bypassing an interlocking device.
The device may be installed and put into operation
only by authorized personnel
who are familiar with the correct handling of
f
safety components
who are familiar with the applicable EMC reg-
f
ulations
who are familiar with the applicable regulations
f
on operational safety and accident prevention
who have read and understood the operating
f
instructions.
All safety precautions and requirements stated
f
in the operating instructions of the AS-Interface
safety monitor used must be observed.
Function
The non-contact safety switch CMS...AS1 consists
of two components:
Coded actuator
f
Read head
f
The read head includes reed contacts that are
activated via the coded, magnetic actuator. It is
equipped with a plug connector and is connected di-
rectly to the safety bus AS‑Interface Safety at Work.
The read head is fastened to the fixed part of the
guard. The actuator attached to the movable part of
the guard is moved towards the read head by closing
the door. When the operating distance is reached,
a bit sequence is sent via the AS-Interface bus that
signals that the guard is closed.
The zero sequence 0000 is sent via the AS-Interface
bus when the guard is opened.
4
Mounting
Caution! Risk of damage to equipment as a result
of incorrect installation.
Read heads or actuators must not be used as a
mechanical end stop. Fit an additional end stop
for the movable part of the guard.
Caution! Read heads or actuators must not be
used in an environment with strong magnetic fields.
Important! Read heads and actuators must be
positively mounted to the guard, e.g. by using the
safety screws supplied. Tighten the screws with a
torque of max. 0.5 Nm.
The read head and actuator may be installed in any
position. The alignment of the read head and the
actuator must be kept in mind (see Fig. 1).
Design CMS-.-A...
Y
X
Approach
direction
Z
Design CMS-.-B...
Y
X
Approach
direction
Z
Fig. 1: Alignment of read head and actuator
Install read head and actuator so that:
they are accessible for inspection work and the
f
installation of spare parts
when the guard is closed, the active read head
f
and actuator faces are exactly aligned (see Fig. 1)
the actuator is located in the read head's actuating
f
range when the guard is closed.
A guide and an additional end stop must be fitted
f
for the movable part of the guard.
A latching mechanism in the closed position must
f
be provided for the safety door.
If the read head and actuator are installed flush,
f
the operating distances are reduced in line with the
installation depth and the guard material.
If the read head and actuator are fitted on ferro-
f
magnetic material, the read distance is reduced.
If the approach speed between the read head and
f
the actuator is low, the approach direction Z (see
Fig. 1) should be avoided.
Alignment
marking
Alignment
marking
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