Operating instructions safety system ces-a – EUCHNER CES-A-x5 User Manual

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Operating Instructions Safety System CES-A-.5

Correct Use

The Coded Electronic Safety switches series CES

are safety devices for monitoring movable safety

guards.
In combination with a separating safety guard, this

safety component prevents dangerous machine

movements from being performed for as long as the

safety guard is open. A stop command is triggered

if the safety guard is opened during the dangerous

machine function.
Before safety switches are used, a risk assess-

ment must be performed on the machine, e.g., in

accordance with:

EN ISO 13489-1, Safety of machinery. Safety re-

lated parts of control systems. General principles

for design
EN ISO 14121, Safety of machinery. Risk assess-

ment. Principles
IEC 62061, Safety of machinery – Functional

safety of safety-related electrical, electronic and

programmable electronic control systems.

Correct use includes compliance with the relevant

requirements for installation and operation, for

example

EN ISO 13489-1, Safety of machinery. Safety re-

lated parts of control systems. General principles

for design
EN 1088, Safety of machinery. Interlocking

devices associated with guards. Principles for

design and selection
EN 60204-1, Safety of machinery. Electrical equip-

ment of machines. General requirements
EN 60947-5-3, Specification for low-voltage switch-

gear and controlgear. Control circuit devices and

switching elements. Requirements for proximity

devices with defined behaviour under fault condi-

tions (PDF)

In general, the following applies for devices with

ATEX rating:

EN 60079-0, Electrical apparatus for potentially

explosive atmospheres
EN 60079-15, Electrical apparatus for explosive

gas atmospheres -- Part 15: Type of protection

"n"
EN 61241-0, Electrical apparatus for use in the

presence of combustible dust
EN 61241-1, Electrical apparatus for use in the

presence of combustible dust -- Part 1: Protection

by enclosures "tD"

The safety switch must be used only in conjunction

with the designated actuators from EUCHNER. On

the use of different actuators, EUCHNER provides

no warranty for safe function.
Devices with ATEX rating may only be operated

with actuators that also have an ATEX rating for

the same zone.
Important: The user is responsible for the integra-

tion of the device in a safe overall system. For this

purpose, the overall system must be validated, e.g.

in accordance with EN ISO 13849-2.
If a product data sheet is included with the product,

the 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 instruc-

tions are not followed, or if any servicing is not

performed as required, liability will be excluded and

the warranty void.

General Safety Instructions

The device is only allowed to be installed and placed

in operation by authorized personnel

who are familiar with the correct handling of safety

components,
who are familiar with the applicable regulations

on health and safety
and who have read and understood the operating

instructions and the system manual.

The safety function of the system while the machine

is in operation can no longer be ensured if the

device is connected incorrectly or used incorrectly.

Fatal injuries may result.
Prior to use, read the operating instructions and

the system manual on the CD-ROM supplied, and

keep these in a safe place.
Ensure the operating instructions and the system

manual are always available during mounting, setup

and servicing.
EUCHNER cannot provide any warranty in relation

to the readability of the CD for the storage period

required. For this reason you should archive a

printed copy of the system manual. If you should

lose the operating instructions or the system

manual, you can download these documents from

www.EUCHNER.de.

System manual on CD-ROM

Each device is supplied with a system manual on

CD-ROM; this manual contains detailed informa-

tion on the overall system. The following system

requirements must be met to be able to open or

print the manual:

PC with PDF Reader installed
CD-ROM drive

Opening and printing the documents

Important: the autoplay function for the drive must

be enabled (see operating system help) and you

will need a PDF Reader that can open PDF files

from version 4.

Insert CD
Selection table is opened in the browser
Click the related document for your system
The document is opened and can be printed

Mounting, setup and troubleshooting

For detailed instructions on mounting, setup

and troubleshooting, please refer to the system

manual.





Electrical Connection

For detailed information on the electrical connection,

please refer to the system manual.

Important: To achieve the stated category accord-

ing to EN ISO 13849, both safety outputs must

always be evaluated with individual devices.
Take note of the connection example in the system

manual.

Inspection and Service

Danger: Loss of the safety function because of

damage to the system. In case of damage, the

related component must be replaced completely.

Replacement of individual parts of a component (e.

g. parts of the evaluation unit) is not permitted.

Regular inspection of the following is necessary to

ensure trouble-free long-term operation:

Check the switching function
Check the secure fastening of the devices and

the connections
Check for soiling (e.g. the ventilation slots on the

housing)

Check the safe function of the safety guard par-

ticularly

after any setup work
after the replacement of a CES component
after an extended period without use

No servicing is required. Repairs to the device are

only allowed to be made by the manufacturer.

Technical data (extract)

Parameter

Value

Operating voltage U

see rating plate of the device

Current consumption

see rating plate of the device

External fuse

(Operating voltage U

) 0.25 ... 8 A

External fuse

Safety circuit

(U(+LA) / U(+LB))

max. 400 mA medium slow-

blow

Safety outputs

LA / LB

2 semiconductor outputs,

p-switching, short circuit-proof,

Utilization category

DC-13 24 V 400 mA

Assured switch-off

distance s

max. 2.28 in

(Combination with actuator

CES-A-BPA, other combinations:

see System manual)

Reliability figures according to EN ISO 13849-1

Version

CES-A-C5E-... CES-A-.5H-...