Correct Use; Electrical Connection - EUCHNER CES-A 5 Serie Información De Seguridad Y Mantenimiento

Safety Information and Maintenance
(Part of the Operating Instructions for Safety Switch CES-A-.5)
Scope
This safety information is part of the operating
instructions for safety switch CES‑A‑.5.

Correct use

Safety switches series CES‑A‑.5 are interlocking
devices without guard locking (type 4). The device
meets the requirements according to EN IEC 60947‑
5‑3. Devices with unicode evaluation possess a
high coding level, devices with multicode evaluation
possess a low coding level.
In combination with a movable safety guard and the
machine control, this safety component prevents
dangerous machine functions from occurring while the
safety guard is open. A stop command is triggered
if the safety guard is opened during the dangerous
machine function.
This means:
Starting commands that cause a dangerous ma‑
f
chine function must become active only when the
safety guard is closed.
Opening the safety guard triggers a stop command.
f
Closing a safety guard must not cause automatic
f
starting 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, Safety of machinery – Safety‑re‑
f
lated parts of control systems – Part 1: General
principles for design
EN ISO 12100, Safety of machinery – Basic
f
concepts – General principles for design – Risk
assessment and risk reduction
IEC 62061, Safety of machinery – Functional safety
f
of safety‑related electrical, electronic and program‑
mable electronic control systems
Correct use includes observing the relevant require‑
ments for installation and operation, particularly
based on the following standards:
EN ISO 13849‑1, Safety of machinery – Safety‑re‑
f
lated parts of control systems – Part 1: General
principles for design
EN ISO 14119 (supersedes EN 1088), Safety of
f
machinery – Interlocking devices associated with
guards – Principles for design and selection
EN 60204‑1, Safety of machinery – Electrical equip‑
f
ment of machines – Part 1: General requirements
The safety switch is only allowed to be operated
in conjunction with the intended EUCHNER CES
actuators and the related connection components
from EUCHNER. On the use of different actuators or
other connection components, EUCHNER provides
no warranty for safe function.
Important:
The user is responsible for the proper integration
f
of the device into a safe overall system. For this
purpose, the overall system must be validated,
e.g. in accordance with EN ISO 13849‑2.
If a data sheet is included with the product, the
f
information on the data sheet applies.
Exclusion of liability and warranty
In case of failure to comply with the conditions for
correct use stated above, or if the safety instructions
are not followed, or if any servicing is not performed
as required, liability will be excluded and the warranty
void.
General safety instructions
Safety switches fulfill personal protection functions.
Incorrect installation or tampering can lead to fatal
injuries to personnel.
Check the safe function of the safety guard partic‑
ularly
after any setup work
f
after the replacement of a system component
f
after an extended period without use
f
after every fault
f
Independent of these checks, the safe function of the
safety guard should be checked at suitable intervals
as part of the maintenance schedule.
WARNING
Danger to life due to improper installation or due to
bypassing (tampering). Safety components perform
a personal protection function.
Safety components must not be bypassed, turned
f
away, removed or otherwise rendered ineffective.
On this topic pay attention in particular to the
measures for reducing the possibility of bypassing
according to EN ISO 14119:2013, section 7.
The switching operation must be triggered only by
f
actuators designated for this purpose.
Prevent bypassing by means of replacement
f
actuators (only for multicode evaluation). For this
purpose, restrict access to actuators and to keys
for releases, for example.
Mounting, electrical connection and setup only
f
by authorized personnel possessing the following
knowledge:
‑ specialist knowledge in handling safety com‑
ponents
‑ knowledge about the applicable EMC regulations
‑ knowledge about the applicable regulations on
occupational safety and accident prevention.
Important!
Prior to use, read the operating instructions and
keep these in a safe place. Ensure the operating
instructions 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 operating instructions. You can download
the operating instructions from www.euchner.de.
Operating instructions on CD/DVD
Each device is supplied with operating instructions
on CD/DVD which contain detailed information on
the overall system. The following system require‑
ments must be met to be able to display or print
the document:
PC with PDF reader installed
f
CD/DVD drive
f
Opening and printing the documents
Important: The autoplay function for the drive must
be enabled (see operating system help), and you will
need an up‑to‑date PDF reader.
1. Insert CD/DVD
Selection table is opened in the browser
¨ ¨
2. 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 trou‑
bleshooting, please refer to the operating instructions
on the CD/DVD.
NOTICE
Risk of damage to equipment and malfunctions as
a result of incorrect installation.
Safety switches and actuators must not be used
f
as an end stop.
Observe EN ISO 14119:2013, sections 5.2 and
f
5.3, for information about fastening the safety
switch and the actuator.
3

Electrical connection

For detailed information on the electrical connection,
please refer to the operating instructions on the
CD/DVD.
WARNING
In case of an error, loss of the safety function
through incorrect connection.
To ensure safety, both safety outputs must always
f
be evaluated.
The monitoring outputs must not be used as
f
safety outputs.
Lay the connection cables with protection to
f
prevent the risk of short circuits.
Inspection and service
WARNING
Loss of the safety function because of damage to
the system.
In case of damage, the affected module must be
replaced completely. Only accessories or spare
parts that can be ordered from EUCHNER may
be replaced.
Regular inspection of the following is necessary to
ensure trouble‑free long‑term operation:
Check the switching function
f
Check the secure fastening of the devices and the
f
connections
Check for soiling
f
Check the safe function of the safety guard partic‑
ularly
after any setup work
f
after the replacement of a system component
f
after an extended period without use
f
after every fault
f
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
B
Current consumption see rating plate of the device
External fuse
0.25 ... 8 A
(operating voltage U )
B
External fuse
Safety circuit max. 400 mA medium slow‑blow
(U(+LA) / U(+LB))
Safety outputs 2 semiconductor outputs, p‑switch‑
LA / LB ing, short circuit‑proof, utilization
category DC‑13 24 V 400 mA
Assured switch‑off max. 58 mm
distance s (combination with actuator
ar
CES‑A‑BPA, other combinations: see
system manual)
Reliability values according to EN ISO 13849-1
Version CES-A-C5E-...
Category 3
Performance Level (PL) PLe
PFH 4.29 x 10 / h
‑8
d
Mission time 20 years
1) Applying the limit value from EN ISO 13849‑1:2008, section
4.5.2 (MTTF = max. 100 years) the employers' liability insurance
d
association certifies a PFH of max. 2.47 x 10
d
CES-A-.5H-...
4
PLe
3.7 x 10 / h
‑9 1)
20 years
.
‑8