Operating Instructions
3
Safety Information
(Part of the Operating Instructions Safety Switch CES-AP/CES-AR/CES-BP/CES-BR)
Scope
This safety information is part of the operating
instructions for safety switch CES of the output
families -AP, -AR, -BP and -BR.
Correct use
The aforementioned safety switches are interlocking
devices without guard locking (type4). The device
complies with the requirements according to
ENIEC60947-5-3. Devices with unicode evaluation
possess a high coding level, devices with multicode
evaluation possess a low coding level.
In combination with a movable guard and the
machine control, this safety component prevents
dangerous machine functions from occurring while
the guard is open. A stop command is triggered if
the guard is opened during the dangerous machine
function.
This means:
f Starting commands that cause a dangerous ma-
chine function must become active only when the
guard is closed.
f Opening the guard triggers a stop command.
f Closing a guard must not cause automatic starting
of a dangerous machine function. A separate start
command must be issued. For exceptions, refer to
ENISO12100 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:
f ENISO13849-1, Safety of machinery – Safety-re-
lated parts of control systems – Part 1: General
principles for design
f EN ISO 12100, Safety of machinery – General
principles for design – Risk assessment and risk
reduction
f IEC 62061, Safety of machinery – Functional
safety of safety-related electrical, electronic and
programmable electronic control systems.
Correct use includes observing the relevant require-
ments for installation and operation, particularly
based on the following standards:
f ENISO13849-1, Safety of machinery – Safety-re-
lated parts of control systems – Part 1: General
principles for design
f ENISO14119, Safety of machinery – Interlocking
devices associated with guards – Principles for
design and selection
f EN 60204-1, Safety of machinery – Electrical
equipment of machines.
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.
The following applies to AR/BR devices: Connection
of several devices in an AR/BR switch chain is
permitted only using devices intended for series
connection in an AR/BR switch chain. Check this in
the instructions of the device in question.
A maximum of 20 safety switches are allowed to be
operated in a switch chain.
Important!
f Correct use requires observing the permissible
operating parameters (see technical data).
f The user is responsible for the proper integration
of the device into a safe overall system. For this
purpose, the overall system must be validated,
e.g. in accordance with ENISO13849-2.
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 precautions
Safety switches fulll personnel protection functions.
Incorrect installation or tampering can lead to fatal
injuries to personnel.
Check the safe function of the guard particularly
f after any setup work
f after the replacement of a system component
f after an extended period without use
f after every fault
Independent of these checks, the safe function of
the 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 personnel protection function.
f Safety components must not be bypassed,
turned away, removed or otherwise rendered
ineffective. On this topic pay attention in partic-
ular to the measures for reducing the possibility
of bypassing according to ENISO14119:2013,
section 7.
f The switching operation must be triggered only
by actuators designated for this purpose.
f Prevent bypassing by means of replacement
actuators (only for multicode evaluation). For this
purpose, restrict access to actuators and to keys
for releases, for example.
f Mounting, electrical connection and setup only
by authorized personnel possessing the following
knowledge:
- specialist knowledge in handling safety com-
ponents
- knowledge about the applicable EMC regu-
lations
- 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.
Complete operating instructions
The complete operating instructions can be down-
loaded from www.euchner.com. Enter the order
number for your device in the search box.
Mounting, setup and
troubleshooting
For detailed instructions on mounting, setup and
troubleshooting, please refer to the operating
instructions.
NOTICE
Risk of damage to equipment and malfunctions as
a result of incorrect installation.
f Safety switches and actuators must not be used
as an end stop.
f Observe ENISO14119:2013, sections 5.2 and
5.3, for information about fastening the safety
switch and the actuator.
Electrical connection
For detailed information on the electrical connection,
please refer to the operating instructions.
WARNING
If there is a mistake, loss of the safety function
due to incorrect connection.
f To ensure safety, both safety outputs must always
be evaluated.
f The monitoring outputs must not be used as
safety outputs.
f Lay the connection cables with protection to
prevent the risk of short circuits.
Inspection and service
WARNING
Loss of the safety function because of damage
to the device.
In case of damage, the affected module must be
replaced completely. Only accessories or spare
parts that can be ordered from www.euchner.com
may be replaced.
Regular inspection of the following is necessary to
ensure trouble-free long-term operation:
f Check the switching function
f Check the secure fastening of the devices and
the connections
f Check for soiling
Check the safe function of the guard particularly
f after any setup work
f after the replacement of a system component
f after an extended period without use
f after every fault
No servicing is required. Repairs to the device are
only allowed to be made by the manufacturer.