Electrical Connection - EUCHNER CMS-E-ER Manual Del Usuario

Operating Instructions
Evaluation Unit CMS-E-ER
Connection of CMS read heads
Up to 30 read heads with reed contacts or 10
f
read heads with Hall sensors can be connected
to the evaluation unit.
If the actuator is moved slowly toward the read
f
head in lateral approach direction Z, the evaluation
unit changes to the blocked state. To cancel the
blocked state, the actuator must again be moved
beyond the release distance.
Mounting
Caution! The evaluation unit must be mounted
in a control cabinet with a minimum degree of
protection of IP54. A snap-in element on the rear
of the device is used for fastening to a mounting
rail. 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 guard.
Important! From the assured release distance
s , the safety outputs are safely shut down. If the
ar
actuator is installed flush, the operating distances
change as a function of the installation depth and
the guard material.
If the actuator is moved out of the actuating range,
it is ensured that safety contacts 13/14 and 23/24
and auxiliary contact 31/32 switch only when the
actuator is moved back into operating distance s
after having exceeded the release distance (see
combination options table).
Note the following points:
Read head and actuator must be easily accessible
for inspection and replacement.
The switching operation must be triggered only by
the specific actuator designated for this purpose.
Read head and actuator must be fitted so that:
when the guard is open up to the distance S
f
(assured release distance), a hazard is excluded.
the actuator is positively mounted on the guard,
f
e.g. by using the safety screws included. Tighten
the screws with a torque of max. 0.5 Nm.
they cannot be removed or tampered with
f
using simple means. Pay particular attention to
EN ISO 14119: 2013, section 7, regarding the
possibilities for bypassing an interlocking device.

Electrical connection

Warning! In the event of a fault, loss of the safety
function due to incorrect connection.
The auxiliary contact 31/32 must not be used as
a safety contact.
Lay the connecting cables with protection to
prevent the risk of short circuits.
Fusing of the power supply and the safety con-
tacts: Provide external contact fuse (4 A gG) for
relay outputs.
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 trans-
former according to EN 61558-2-6 with limited
output voltage in the event of a fault, or by other
equivalent isolation measures.
This device is intended to be used with a Class 2
power source in accordance with UL 1310.
As an alternative a LV/C (Limited Voltage/Current)
power source with the following properties can
be used:
This device shall be used with a suitable isolating
source in conjunction with a fuse in accordance
with UL 248. The fuse shall be either rated max.
4 A and be installed in the max. 24 V/DC power
supply or it shall be rated 3.3 A and be installed
in the max. 30 V/DC power supply to the device
in order to limit the available current to comply
with the UL requirements. Please note possibly
lower connection ratings for your device (refer to
the technical data).
The devices are tested in accordance with UL 508
ao
and CSA/C22.2 no.14 (protection against electric
shock and fire) and are intended for rail mounting
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
ar
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
switchgear is connected to the plug-in terminals
provided in the evaluation units, the jumpers 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 auxiliary contact)
are reverse polarity protected.
7
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 contacts are being
switched (see LED displays) by opening and closing
the safety door.
LED displays
The LEDs K1 and K2 indicate whether actuator and
read head are correctly aligned in relation to each
other. The status of the safety contacts cannot be
seen from the LEDs.
Function LED
Operating voltage on
Power
Operating voltage off
Contacts 13/14, 23/24
open and 31/32 closed
K1
K2
Contacts 13/14, 23/24
closed and 31/32 open
Service and inspection
No servicing is required. Regular inspection of
the following is necessary to ensure trouble-free
long-term operation:
Correct switching function
f
Secure mounting of components
f
Loose connections
f
In the event of damage or wear and tear, the dam-
aged system component must be replaced.
If the safety door is not frequently used, the system
must be subjected to a regular function test as part
of the inspection schedule.
EU declaration of conformity
The declaration of conformity is part of the operating
instructions, and it is included as a separate sheet
with the unit.
The original EU declaration of conformity can also
be found at: www.euchner.com
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone:
+49 711 7597-500
E-mail:
support@euchner.de
Internet:
www.euchner.com
Color State
ON
green
OFF
OFF
OFF
green
green
ON
ON