EUCHNER CES-A-C5H-EX, CES-A-.5 Operating Instructions Manual
Operating Instructions
Non-Contact Safety Switch
CES-A-C5H-EX Unicode/Multicode
EN
Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
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. Explosion protection safety concept ...................................................................... 7
5. Exclusion of liability and warranty ......................................................................... 7
6. General safety precautions ................................................................................... 8
7. Function ............................................................................................................... 9
7.1. Door monitoring output ...................................................................................................................9
7.2. Switching states .............................................................................................................................9
7.3. Block diagram ..............................................................................................................................10
8. Changing the approach direction ........................................................................ 11
9. Mounting ............................................................................................................ 12
10. Electrical connection .......................................................................................... 14
10.1. Notes about .........................................................................................................................15
10.2. Safety in case of faults ..................................................................................................................15
10.3. Requirements for connection cables ...............................................................................................15
10.4. Connector assignment of safety switch CES-A-C5H-EX .....................................................................16
10.5. Correct connection .......................................................................................................................17
10.6. Connection example .....................................................................................................................18
11. Setup ................................................................................................................. 19
11.1. LED displays ................................................................................................................................19
11.2. Teach-in function for actuator (only for unicode evaluation) ...............................................................19
11.2.1. Carrying out teach-in for rst actuator (default setting on delivery) .......................................19
11.2.2. Carrying out teach-in for a new actuator ............................................................................20
11.3. Functional check ...........................................................................................................................20
12. System status table ............................................................................................ 21
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Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
13. Technical data .................................................................................................... 22
13.1. Safety switch CES-A-C5H-EX ..........................................................................................................22
13.1.1. Technical data for safety switch CES-A-C5H-EX ...................................................................23
13.1.2. Typical system times ........................................................................................................24
13.2. Actuator CES-A-BPA-EX ..................................................................................................................25
13.2.1. Technical data .................................................................................................................25
13.2.2. Typical operating distance ................................................................................................26
13.2.3. Operating distance for center offset m = 0
13.3. Actuator CES-A-BBA-EX..................................................................................................................27
13.3.1. Technical data .................................................................................................................27
13.3.2. Typical operating distance ................................................................................................28
13.3.3. Operating distance for center offset m = 0
1) .............................................................................................26
1) .............................................................................................28
14. Ordering information and accessories ................................................................. 29
15. Inspection and service ........................................................................................ 29
16. Service .............................................................................................................. 29
17. Declaration of conformity ................................................................................... 30
2110182-09-12/18 (Translation of the original operating instructions)
EN
3
Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
1. About this document
1.1. Scope
These operating instructions are valid for all CES-A-C5H-EX. 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
www
DANGER
WARNING
Document is available for download at www.euchner.com
Document on CD
Safety precautions
Danger of death or severe injuries
Warning about possible injuries
Caution slight injuries possible
CAUTION
Notice about possible device damage
NOTICE
Important!
Tip Useful information
Important information
1.4. Supplementary documents
The overall documentation for this device consists of the following documents:
Document title
(document number)
Safety Information
and Maintenance
CES-A-C5H-EX
(2117077)
Operating Instructions
(2110182)
Possibly enclosed data
sheet
Contents
Basic information for safe setup and service
(this document)
Item-specic 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.
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Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
2. Correct use
Safety switches series CES-A-C5H-EX are interlocking devices without guard locking (type4). The device meets 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:
Ì Starting commands that cause a dangerous machine function must become active only when the guard is closed.
Ì Opening the guard triggers a stop command.
Ì 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:
Ì ENISO13849-1
Ì ENISO12100
Ì IEC62061
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
Ì ENISO13849-1
Ì ENISO14119
Ì EN60204-1
Ì DIN EN1127-1
Ì EN60079-0
Ì EN60079-7
Ì EN60079-14
Ì EN60079-31
The safety switch must be used only in conjunction with the designated CES actuators from EUCHNER. On the use of different
actuators, EUCHNER provides no warranty for safe function.
Important!
Ì Devices with ATEX rating may be operated only with actuators that also have an ATEX rating for
the same zone.
Ì 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.
Ì It is only allowed to use components that are permissible in accordance with the table below.
2110182-09-12/18 (Translation of the original operating instructions)
EN
5
Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
Table 1: Possible combinations for CES components
Actuator
Safety switch
CES-A-C5H-EX
Combination possible
Combination possible, guard locking for process protection
Key to symbols
Combination possible, guard locking for personnel protection
Combination not permissible
Table 2: Associated connection cables
Designation Cable length [m] Order no./item
M12 connection cable, silicone-free PVC,
ying lead, 8-pin
CES-A-BBA-EX
5
10
15
20
25
50
098158
CES-A-BPA-EX
102125
C-M12F08-08X025PV05,0-GA-077751
C-M12F08-08X025PV10,0-GA-077752
C-M12F08-08X025PV15,0-GA-077753
C-M12F08-08X025PV20,0-GA-077871
C-M12F08-08X025PV25,0-GA-077872
C-M12F08-08X025PV50,0-GA-077873
077751
077752
077753
077871
077872
077873
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of the guard position
(interlocking device according to ENISO14119)
Ì Safety function:
- The safety outputs are switched off when the guard is open (see chapter 7.2. Switching states on page 9).
Ì Safety characteristics: category, Performance Level, PFH
(see chapter 13. Technical data on page 22).
D
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(Translation of the original operating instructions) 2110182-09-12/18
Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
4. Explosion protection safety concept
Important!
Ì In order to achieve the explosion protection stated, all the conditions in the operating instructions
must be met. HIGH RISK product.
Ì Devices with ATEX rating may be operated only with actuators that also have an ATEX rating for
the same zone.
Ì Use connection components and connection cables from EUCHNER.
Ì The connecting cable must be laid such that it is protected against mechanical damage.
Ì In addition, a mechanical barrier is to be provided on the connecting cable as per EN60079-14,
section 9.3.9 to prevent ame propagation from the non-potentially explosive atmosphere to the
potentially explosive atmosphere.
II 3G Ex ic ec IIB T5 Gc X
II 3D Ex ic tc IIIC T90°C Dc X
…GcX = All the electrical connections must either be isolated from the mains supply by a safety transformer according to
IEC61558-2-6 with limited output voltage in the event of a fault, or by other equivalent isolation measures (PELV).
…DcX = To prevent electrostatic charging, do not subject the switch to any processes that generates a large amount of
charge.
Safety switches with ATEX identication marking from EUCHNER are not safety devices as dened by the ATEX
Directive.
The specied type of protection ic applies only to the integrated reader module. The electrical circuits in the device connection (M12 plug connector) are not intrinsically safe!
If mounted on heat/cooling sources, the permissible ambient temperature (see technical data) must be observed.
Ground the protective plate via the grounding terminal with a cable cross-section of 4mm² min. to prevent electrostatic
charging.
Protection against mechanical effects on the switch: to achieve the indicated explosion protection, it is essential the protective plate supplied is mounted (ESD protective paint).
On use in potentially explosive atmospheres, there is a danger of explosion due to electrical sparks.
Ì Never connect or disconnect connector when live.
If damage or wear is found, the complete switch and actuator assembly must be replaced. Replacement of individual parts
or assemblies is not permitted.
5. 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.
2110182-09-12/18 (Translation of the original operating instructions)
EN
7
Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
6. 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
Ì after any setup work
Ì after the replacement of a system component
Ì after an extended period without use
Ì 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.
DANGER
Danger of explosion due to sparks.
Ì Mounting, connection and maintenance are not allowed to be performed in a potentially explosive
atmosphere.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components fulll
a personnel protection function.
Ì Safety 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 bypassing according to ENISO14119:2013, section 7.
Ì The switching operation must be triggered only by actuators designated for this purpose.
Ì 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.
Ì Mounting, 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 instructions from www.euchner.com.
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(Translation of the original operating instructions) 2110182-09-12/18
Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
7. Function
The safety switch monitors the position of movable 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.
Ì Devices 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 tampering. The system thus possesses a high coding level.
Ì Devices with multicode evaluation: Unlike systems with unique code detection, on multicode devices a specic 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 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 are transferred.
If a permissible code is detected, the safety outputs are switched on.
The safety outputs are switched off when the 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).
7.1. Door monitoring output
The door monitoring output is switched on as soon as a valid actuator is detected in the operating distance.
7.2. 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.
(actuator in the operating distance and
Guard closed
permissible code detected)
(actuator not in the operating distance)
Guard open
Safety outputs LA and LB on off
Monitoring output OUT on off
2110182-09-12/18 (Translation of the original operating instructions)
EN
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Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
7.3. Block diagram
Coded
actuator
Read head with
evaluation unit
CES-A-.5
Housing:
118 x 40 x 40 mm
Trans-
ponder
Read head
Output circuit:
+LA
LA
-LAB
Common ground for output A and B
Pin assignment:
Pin
1
2
3
4
5
6
7
8
Core color
WH/white
BN/brown
GN/green
YE/yellow
GY/gray
PK/pink
BU/blue
RD/red
R
Load A
Function
+
-
0V
+ U
LA
LB
OUT
+LA
-LAB
+LB
Power
supply
for load A
B
Connection:
M 12x1
8-pin, screened
Screen bonding clamp
The screen on the connection cable
is connected internally to the screen
bonding clamp on the housing.
(RD)
+LB
-LAB
(BU)
LB
(YE)
+LA
(PK)
(GN)
LA
(GY)
OUT
(BN)
+ U
B
(WH)
0V
dynamic signals
Test pulse 0
O1
0 V
I1
0 V
Test pulse 1
O9
0 V
I9
0 V
Input
E2
DC +24 V
0V
Safety PLC
with static /
Pulsed output
Safety input
Pulsed output
Safety input
Connection example with
safety PLC PSS 3056 (PILZ)
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(Translation of the original operating instructions) 2110182-09-12/18
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