EUCHNER CES-I-AR-.-C04 Series User manual

EN
Operating Instructions
Non-Contact Safety Switch
CES-I-AR-.-C04-… (Unicode/Multicode)

Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
2(translation of the original operating instructions) 2119563-08-07/17
Contents
1. About this document............................................................................................. 4
1.1. Scope............................................................................................................................................4
1.2. Target group ..................................................................................................................................4
1.3. Key to symbols...............................................................................................................................4
1.4. Supplementary documents ..............................................................................................................4
2. Correct use .......................................................................................................... 5
3. Description of the safety function .......................................................................... 6
4. Exclusion of liability and warranty ......................................................................... 6
5. General safety instructions.................................................................................... 6
6. Function............................................................................................................... 7
6.1. Door monitoring output ...................................................................................................................7
6.2. Diagnostics output..........................................................................................................................7
6.3. Limit-range monitoring ....................................................................................................................7
6.4. Switching states .............................................................................................................................7
7. ATEX .................................................................................................................... 8
7.1. Technical data of housing guard AM-C-C04-EX-137528 ......................................................................9
7.1.1. Dimension drawing of housing guard AM-C-C04-EX-137528...................................................9
7.2. Mounting........................................................................................................................................9
8. Mounting............................................................................................................ 10
9. Electrical connection .......................................................................................... 11
9.1. Notes about .........................................................................................................................12
9.2. Safety in case of faults..................................................................................................................12
9.3. Fuse protection for power supply...................................................................................................12
9.4. Requirements for connection cables...............................................................................................13
9.5. Maximum cable lengths.................................................................................................................13
9.5.1. Determining cable lengths using the example table.............................................................14
9.6. Connector assignment of safety switch CES-I-AR .............................................................................15
9.7. Connector assignment of Y-distributor............................................................................................16
9.8. Connection of a single AR device ...................................................................................................17
9.9. Connection of several devices in a switch chain ..............................................................................18
9.10. Information on operation on an AR evaluation unit............................................................................20
9.11. Notes on operation with safe control systems.................................................................................20

3
2119563-08-07/17 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
EN
10. Setup ................................................................................................................. 22
10.1. LED displays ................................................................................................................................22
10.2. Teach-in function for actuator (only for unicode evaluation) ...............................................................22
10.2.1. Preparing device for the teach-in operation and teaching in actuator ....................................22
10.2.2. Teach-in function with series connection, replacing and teaching in device ............................23
10.3. Functional check...........................................................................................................................23
10.3.1. Electrical function test......................................................................................................23
11. System status table CES-I-AR-….......................................................................... 24
12. Technical data .................................................................................................... 25
12.1. Technical data of safety switch CES-I-AR-C04-… ..............................................................................25
12.1.1. Typical system times........................................................................................................26
12.1.2. Dimension drawing of safety switch CES-I-AR-C04-…...........................................................27
12.2. Technical data of actuator CES-A-BBN-C04/CES-A-BBN-C04-EX-137527 ............................................28
12.2.1. Dimension drawing...........................................................................................................28
12.2.2. Switching distances .........................................................................................................28
12.2.3. Typical operating distance in approach direction A..............................................................29
12.3. Technical data of actuator CES-A-BDN-06........................................................................................30
12.3.1. Dimension drawing...........................................................................................................30
12.3.2. Switching distances .........................................................................................................30
13. Ordering information and accessories................................................................. 31
14. Inspection and service ........................................................................................ 31
15. Service .............................................................................................................. 31
16. Declaration of conformity ................................................................................... 32

Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
4(translation of the original operating instructions) 2119563-08-07/17
1. About this document
1.1. Scope
These operating instructions are valid for all CES-I-AR-.-C04-… These operating instructions, the document “Safety information
and maintenance” and any enclosed data sheet form the complete user information for your device.
1.2. Target group
Design engineers and installation planners for safety devices on machines, as well as setup and servicing staff possessing
special expertise in handling safety components.
1.3. Key to symbols
Symbol/depiction Meaning
Printed document
Internet
www Document is available for download at www.euchner.com
Document on CD
DANGER
WARNING
CAUTION
Safety precautions
Danger of death or severe injuries
Warning about possible injuries
Caution Slight injuries possible
NOTICE
Important!
Notice about possible device damage
Important information
Tip Useful information
1.4. Supplementary documents
The overall documentation for this device consists of the following documents:
Document title
(document number) Contents
Safety information and
maintenance CES-AR
(2091181)
Basic information for safe setup and service
Operating instructions
(2119563) (this document)
Possibly enclosed data
sheet Item-specic information about deviations or additions
Important!
Always read all documents to gain a complete overview of safe installation, setup and use of the
device. The documents can be downloaded from www.euchner.com. For this purpose enter the doc.
no. in the search box.

5
2119563-08-07/17 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
EN
2. Correct use
Safety switches series CES-I-AR 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 eval-
uation 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:
ÌStarting commands that cause a dangerous machine function must become active only when the safety guard is closed.
ÌOpening the safety guard triggers a stop command.
ÌClosing a safety guard must not cause automatic 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:
ÌENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
ÌENISO12100, Safety of machinery – General principles for design – Risk assessment and risk reduction
ÌIEC62061, Safety of machinery – Functional safety of safety-related electrical, electronic and programmable electronic
control systems.
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
ÌENISO14119 (supersedes EN1088), Safety of machinery – Interlocking devices associated with guards – Principles
for design and selection
ÌEN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.
Connection of several devices in an AR switch chain is permitted only using devices intended for series connection in an AR
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!
ÌThe 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 ENISO13849-2.
ÌIt is only allowed to use components that are permissible in accordance with the table below.
Table 1: Possible combinations for CES components
Safety switch
Actuator
CES-A-BBN-C04-115271 CES-A-BDN-06-104730
CES-I-AR-.-C04-...
Key to symbols Combination possible
NOTICE
The devices can be operated on an AR evaluation unit. Please refer to the operating instructions for
the relevant AR evaluation unit for more information.

Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
6(translation of the original operating instructions) 2119563-08-07/17
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of the safety guard position
(interlocking device according to ENISO14119)
ÌSafety function:
- The safety outputs are switched off when the safety guard is open (see chapter 6.4. Switching states on page 7).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 12. Technical data on page 25).
4. 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.
5. General safety instructions
Safety switches fulll personal protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safety guard particularly
Ìafter any setup work
Ìafter the replacement of a system component
Ìafter an extended period without use
Ìafter every fault
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 fulll
a personal protection function.
ÌSafety components must not be bypassed, turned away, removed or otherwise rendered ineffec-
tive. On this topic pay attention in particular to the measures for reducing the possibility of bypass-
ing according to ENISO14119:2013, section 7.
ÌThe switching operation must be triggered only by actuators designated for this purpose.
ÌPrevent bypassing by means of replacement actuators (only for multicode evaluation). For this
purpose, restrict access to actuators and to keys for releases, for example.
ÌMounting, electrical connection and setup only by authorized personnel possessing the following
knowledge:
- specialist knowledge in handling safety components
- 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 instruc-
tions from www.euchner.com.

7
2119563-08-07/17 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
EN
6. Function
The safety switch monitors the position of movable safety guards. The safety outputs are switched on/off when the actuator
is moved to/removed from the operating distance.
The system consists of the following components: coded actuator (transponder) and switch.
Whether the device learns the complete actuator code (unicode) or not (multicode) depends on the respective version.
ÌDevices with unicode evaluation: The actuator must be assigned to the safety switch by a teach-in operation so that
it is detected by the system. This unambiguous assignment ensures a particularly high level of protection against tam-
pering. The system thus possesses a high coding level.
ÌDevices with multicode evaluation: Unlike systems with unique code detection, on multicode devices a specic code
is not requested but instead it is only checked whether the actuator is of a type that can be detected by the system
(multicode detection). There is no exact comparison of the actuator code with the taught-in code in the safety switch
(unique code detection). The system possesses a low coding level.
When the safety guard is closed, the actuator is moved towards the safety switch. When the switch-on distance is reached,
power is supplied to the actuator by the switch and data is transferred.
If a permissible code is detected, the safety outputs are switched on.
The safety outputs are switched off when the safety guard is opened.
In the event of a fault in the safety switch, the safety outputs are switched off and the DIA LED illuminates red. The occurrence
of faults is detected at the latest on the next demand to close the safety outputs (e.g. on starting).
6.1. Door monitoring output
The door monitoring output is switched on as soon as a valid actuator is detected in the operating range.
6.2. Diagnostics output
The diagnostics output is switched on in the event of a fault (switch-on condition as for DIA LED).
6.3. Limit-range monitoring
If the safety door with the actuator should settle over time, the actuator can drift out of the read head operating distance.
The device recognizes this situation and indicates that the actuator is in the limit range by ashing the STATE LED. This
allows the safety door to be readjusted in time. Also see chapter 11. System status table CES-I-AR-… on page 24.
6.4. Switching states
The detailed switching states for your switch can be found in the system status table. All safety outputs, monitoring outputs
and display LEDs are described there.
Safety guard closed
(actuator in the operating distance and permissi-
ble code detected)
Safety guard open
(actuator not in the operating distance)
Safety outputs FO1A and FO1B on off
Monitoring output OD on off

Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
8(translation of the original operating instructions) 2119563-08-07/17
7. ATEX
Safety switches from series CES-I-AR-.-C04-… can be used in potentially explosive atmospheres when equipped with housing
guard AM-C-C04-EX-137528 available as an accessory.
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌEN1127-1, Explosive atmospheres – Explosion prevention and protection – Part 1: Basic concepts and methodology
ÌEN60079-0, Explosive atmospheres – Part 0: Equipment – General requirements
ÌEN60079-11, Explosive atmospheres – Part 11: Equipment protection by intrinsic safety “i”
ÌEN60079-14, Explosive atmospheres – Part 14: Electrical installations design, selection and erection
ÌEN60079-15, Explosive atmospheres - Part 15: Equipment protection by type of protection “n”
ÌEN60079-31, Explosive atmospheres – Part 31: Equipment dust ignition protection by enclosure “t”.
The safety switch is allowed to be operated only in conjunction with the intended actuator CES-A-BBN-C04-EX-137527 from
EUCHNER and the related connection components from EUCHNER. On the use of different actuators or other connection
components, EUCHNER provides no warranty for safe function.
Safety switches with ATEX identication marking from EUCHNER are not safety devices as dened by the ATEX
Directive.
Important!
In order to achieve the explosion protection stated, all the conditions in the operating instructions
must be met. HIGH RISK product.
Devices with ATEX rating may be operated only with actuators that also have an ATEX rating for the
same zone.
ATEX rating
Housing guard AM-C-C04-EX-137528 in combination with safety switch CES-I-AR-.-C04-…
II3G Ex nA IIB T6 Gc X
II3D Ex tc IIIC T80°C Dc X
Actuator CES-A-BBN-C04-EX-137527
II3G Ex ic IIC T6 Gc
II3D Ex ic IIIC T85°C Dc X
X= It is essential to t the housing guard as shock protection. All the electrical connections must either be isolated from
the mains supply by a safety transformer according to IEC 61558-2-6 with limited output voltage in the event of a fault,
or by other equivalent isolation measures (PELV).
Permanently and inseparably connect the actuator using the supplied non-removable screws.
To prevent electrostatic charging:
ÌDo not subject the switch to any processes that generate a large amount of charge.
ÌClean only with a damp cloth!
Protection against mechanical effects on the switch:
ÌFit the switch on a at surface. Install the switch so that the rear housing is entirely covered in order to protect it from
mechanical damage through impact.
ÌAll connection cables and plug connectors must be laid such that they are protected against mechanical damage.
ÌThe connection cable must be laid rigidly; it is not permissible to lay the cable so that it can move (e.g. in a drag chain).
No tools (e.g. grinding or cutting devices) in accordance with DINEN1127-1, Annex A, point b) may be used.
If damage or wear is found, the complete switch including housing guard and actuator must be replaced. Replacement of
individual parts or assemblies is not permitted.

9
2119563-08-07/17 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
EN
The supplied type label must be afxed on the safety switch.
On use in potentially explosive atmospheres, there is a danger of explosion due to electrical sparks.
ÌNever connect or disconnect connector when live.
7.1. Technical data of housing guard AM-C-C04-EX-137528
Parameter Value Unit
min. typ. max.
Housing material PBT/PC plastic
Dimensions 75 x 30 x 20 mm
Weight 0.02 kg
Ambient temperature - 25 - + 65 °C
Tightening torque of xing screw in combination with
CES-I-AR-.-C04-… - - 60 Ncm
7.1.1. Dimension drawing of housing guard AM-C-C04-EX-137528
F-F
2,8
7,2
5
20
75
30
32
F
F
7.2. Mounting
1
2
1Afx ATEX type label 2Place safety switch into the housing guard depending on alignment

Operating Instructions
Non-Contact Safety Switch CES-I-AR-.-C04-…
10 (translation of the original operating instructions) 2119563-08-07/17
8. Mounting
CAUTION
Safety switches must not be bypassed (bridging of contacts), turned away, removed or otherwise
rendered ineffective.
ÌObserve ENISO14119:2013, section 7, for information about reducing the possibilities for by-
passing an interlocking device.
NOTICE
Risk of damage to equipment and malfunctions as a result of incorrect installation.
ÌSafety switches and actuators must not be used as an end stop.
ÌObserve ENISO14119:2013, sections 5.2 and 5.3, for information about fastening the safety
switch and the actuator.
ÌFrom the assured switch-off distance Sar, the safety outputs are safely shut down.
ÌWhen mounting several safety switches, observe the stipulated minimum distance to avoid mutual
interference.
.
min. 140 mm
ÌThe operating distance changes during the mounting of the actuator as a function of the material
used for the safety guard.
ÌObserve direction of arrow on the device (see gure below).
Permissible approach directions
A B
C D
Note the following points:
ÌActuator and safety switch must be easily accessible for inspection and replacement.
ÌActuator and safety switch must be tted so that
- the front faces are at the minimum switch-on distance 0.8xSao or closer when the safety guard is closed (see chapter
12. Technical data, sections Operating distances and Typical operating distance of the respective actuator). To avoid
entering the area of possible side lobes, a minimum distance is to be maintained in case of a side approach direction.
See chapter 12. Technical data, section Typical operating distance for the related actuator.
- when the safety guard is open up to the distance Sar (assured switch-off distance), a hazard is excluded.
- the actuator is positively mounted on the safety guard, e.g. by using the safety screws included.
- they cannot be removed or tampered with using simple means.
ÌPay attention to the maximum tightening torque for the read head or safety switch and actuator mountings of 0.8Nm.
ÌIn order to avoid damage, the connection cable must be laid with protection in areas in which high-pressure cleaners are
used.