EUCHNER CMS-E-FR User Manual
Page 6

Operating Instructions Safety Switch Evaluation Units CMS-E-FR
EUCHNER GmbH + Co. KG Kohlhammerstraße 16 D-70771 Leinfelden-Echterdingen Tel. +49 711 7597-0 Fax +49 711 753316 [email protected] www.euchner.de
Subject to technical modifications; no r
esponsibility is accepted for the accuracy of this information.
© EUCHNER GmbH + Co. KG
102345-09-01/14 (translation of the original operating instructions)
Mounting
Caution! The evaluation unit must be mounted in a
control cabinet with a minimum degree of protec-
tion of IP 54. A snap-in element on the rear of the
device is used for fastening to mounting rails. If
several evaluation units are mounted side by side
in a control cabinet without air circulation (e. g. fan),
a minimum distance of 10 mm must be maintained
between the evaluation units. This distance enables
the heat from the evaluation unit to dissipate.
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
safety guard.
Important! From the assured switch-off distance
s
ar
, the safety outputs are safely shut down. If the
actuator is installed flush, the switching distance
changes as a function of the installation depth and
the safety guard material.
Note the following points:
Actuator and read head must be easily accessible
for inspection and replacement.
The switching operation must only be triggered by
the specific actuator designated for this purpose.
Actuator and read head must be fitted
f
so that when the safety guard is open up to the
distance S
ar
(assured switch-off distance), a hazard
is excluded.
f
the actuator is positively mounted on the safety
guard, e. g. by using the safety screws included.
f
they cannot be removed or tampered with using
simple means. Pay particular attention to EN ISO
14119: 2013, section 7, regarding the possibili-
ties for bypassing an interlocking device.
Electrical connection
Warning! In case of an error, loss of the safety
function through incorrect connection.
The auxiliary contact 31/32 must not be used as
a safety contact.
Lay the connection cables with protection to prevent
the risk of short circuits.
Caution! Risk of damage to equipment or malfunc-
tions as a result of incorrect connection.
All the electrical connections must either be isolated
from the mains supply by a safety transformer
according to EN 61558-2-6 with limited output volt-
age in the event of a fault, or by other equivalent
isolation measures.
For use and operation as per the
requirements,
a power supply with the feature "for use in class
2 circuits" must be used. The same requirement
applies to the safety outputs. Alternative solutions
must comply with the following requirements:
a) Electrically isolated power supply unit with a
max. open-circuit voltage of 30 V/DC and a limited
current of max. 8 A.
b) Electrically isolated power supply unit in combina-
tion with fuse as per UL 248. This fuse should be
designed for max. 3.3 A and should be integrated
into the 30 V/DC voltage section.
The devices are tested in accordance with UL 508
and are intended for mounting rail installation in the
control cabinet.
They are not tested as safety components in the
context of the UL definition (e. g. for potentially
explosive atmospheres).
All electrical outputs must have an adequate
protective circuit for inductive loads. The outputs
must be protected with a free-wheeling diode for
this purpose.
The tightening torque for the screws on the connec-
tion terminals must be 0.6 ... 0.8 Nm.
If no read heads or other electromagnetic safety
switch gear is connected to the plug-in terminals
provided in the evaluation units, the bridges supplied
must be inserted in accordance with the connection
diagram.
Safety in case of faults
Terminals A1 and A2 for connection of the power
supply and all outputs (safety and door auxiliary
contact) are reverse polarity protected.
Function
LED
Color
State
Operating voltage on
Power
green
ON
Operating voltage off
OFF
Contacts 13/14, 23/24
open
and 31/32 closed
K1
K2
green
green
OFF
OFF
Contacts 13/14, 23/24
closed
and 31/32 open
ON
ON
Setup
If the evaluation unit does not appear to function
when operating voltage is applied (green Power
LED does not illuminate), the unit must be returned
unopened to the manufacturer.
Check whether the safety outputs are being switched
(see LED indicator) by opening and closing the
safety door.
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
loose connections.
In the event of damage or wear and tear, the dam-
aged system component must be replaced.
If the safety doors are not frequently used, the
system should be subjected to a function test as
part of the inspection schedule.
EC declaration of conformity
The manufacturer named below herewith declares
that the product fulfills the provisions of the
directive(s) listed below and that the related stan-
dards have been applied.
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen, Germany
Directives applied:
f
Machinery directive 2006/42/EC
f
EMC directive 2004/108/EC
Standards applied:
f
EN ISO 13849-1:2008-12
f
EN 50178:1997
f
EN 60204-1.2006
f
EN ISO 13850:2008
f
EN 1088:1995+A2:2008
f
EN 61000-6-2:2005
f
EN 61000-6-3:2007
f
EN 60947-5-3:1999+A1:2005
Leinfelden, January 2014
Dipl.-Ing. Stefan Euchner
Managing Director
Duc Binh Nguyen
Authorized representative empowered to draw up
documentation
The signed EC declaration of conformity is included
with the product.