EUCHNER CES-A-5 Series User manual

EN
Operating Instructions
Non-Contact Safety Switch
CES-A-.5 Unicode/Multicode

Operating Instructions
Non-Contact Safety Switch CES-A-.5
2(translation of the original operating instructions) 2096580-16-11/22
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 precautions ................................................................................... 6
6. Function............................................................................................................... 7
6.1. Door monitoring output ...................................................................................................................7
6.2. Switching states .............................................................................................................................7
6.3. Block diagram ................................................................................................................................8
7. Changing the approach direction .......................................................................... 9
8. Mounting............................................................................................................ 10
9. Electrical connection .......................................................................................... 11
9.1. Notes about .........................................................................................................................12
9.2. Safety in case of faults..................................................................................................................12
9.3. Requirements for connecting cables...............................................................................................12
9.4. Connector assignment of safety switch CES-A-.5.............................................................................13
9.5. Correct connection .......................................................................................................................13
9.6. Connection example .....................................................................................................................14
10. Setup ................................................................................................................. 15
10.1. LED displays ................................................................................................................................15
10.2. Teach-in function for actuator (only for unicode evaluation) ...............................................................15
10.2.1. Carrying out teach-in for rst actuator (delivery state) .......................................................15
10.2.2. Carrying out teach-in for a new actuator...........................................................................16
10.3. Functional check...........................................................................................................................16
11. System status table ............................................................................................ 17

3
2096580-16-11/22 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-A-.5
EN
12. Technical data .................................................................................................... 18
12.1. Safety switch CES-A-.5 ..................................................................................................................18
12.1.1. Technical data for safety switch CES-A-.5.........................................................................19
12.1.2. Typical system times......................................................................................................20
12.2. Actuator CES-A-BPA ......................................................................................................................21
12.2.1. Technical data ...............................................................................................................21
12.2.2. Typical actuating range...................................................................................................22
12.2.3. Actuating range for center offset m = 0 1) ......................................................................22
12.3. Actuator CES-A-BBA/CES-A-BCA.....................................................................................................23
12.3.1. Technical data ...............................................................................................................23
12.3.2. Typical actuating range...................................................................................................24
12.3.3. Actuating range for center offset m = 0 1) ......................................................................24
13. Ordering information and accessories................................................................. 25
14. Inspection and service ........................................................................................ 25
15. Service .............................................................................................................. 25
16. Declaration of conformity ................................................................................... 25

Operating Instructions
Non-Contact Safety Switch CES-A-.5
4(translation of the original operating instructions) 2096580-16-11/22
1. About this document
1.1. Scope
These operating instructions apply to all CES-A-.5 of version V0.1.X. These operating instructions, the document Safety
information and any available 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
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
(2525460) Basic safety information
Operating instructions
(2096580) (this document)
Internet
www
Declaration of conformity Declaration of conformity
Internet
www
Possibly available 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 document
number or the order number for the device in the search box.

5
2096580-16-11/22 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-A-.5
EN
2. 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 eval-
uation 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:
ÌStarting commands that cause a dangerous machine function must become active only when the guard is closed.
ÌOpening the guard triggers a stop command.
ÌClosing a 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
ÌENISO12100
ÌIEC62061
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1
ÌENISO14119
ÌEN60204-1
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!
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-BBA
071840
CES-A-BCA
088786
CES-A-BDA-20
084720
CES-A-BPA
098775
CES-A-C5E-01
077750
CES-A-C5H-01
091458
CES-A-W5H-01
097525
Key to symbols
Combination possible
Combination not permissible

Operating Instructions
Non-Contact Safety Switch CES-A-.5
6(translation of the original operating instructions) 2096580-16-11/22
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of the guard position
(interlocking device according to ENISO14119)
ÌSafety function:
- The safety outputs are switched off when the guard is open (see chapter 6.2. Switching states on page 7).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 12. Technical data on page 18).
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety regulations are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety precautions
Safety switches fulll personnel protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safeguard 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 safeguard 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 personnel protection function.
ÌSafety components must not be bypassed, turned 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.
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 pur-
pose, 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 operational 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. For this reason you should
archive a printed copy of the operating instructions. You can download the operating instructions from
www.euchner.com.

7
2096580-16-11/22 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-A-.5
EN
6. 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 actuating range.
The system consists of the following components: coded actuator (transponder with high coding level) 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 tampering.
The system thus possesses a high coding level.
ÌDevices with multicode evaluation: Unlike systems with unicode evaluation, 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 (multi-
code detection). There is no exact comparison of the actuator code with the taught-in code in the safety switch (unicode
evaluation). The system possesses a low coding level.
When the guard is closed, the actuator is moved towards the safety switch. When the operating 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).
6.1. Door monitoring output
The door monitoring output is switched on as soon as a valid actuator is detected in the actuating range.
6.2. 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.
Guard closed
(actuator in the actuating range and permissible
code detected)
Guard open
(actuator not in the actuating range)
Safety outputs LA and LB on off
Monitoring output OUT on off

Operating Instructions
Non-Contact Safety Switch CES-A-.5
8(translation of the original operating instructions) 2096580-16-11/22
6.3. Block diagram
1
2
3
4
5
6
7
8
0V
+ U
LA
LB
OUT
+LA
-LAB
+LB
B
I1
O1
0 V
0 V
E2
I9
O9
0 V
0V
0 V
OUT
DC +24 V
+LB
-LAB
LB
+LA
LA
+ U
0V
(RD)
(BU)
(YE)
(PK)
(GN)
(GY)
(BN)
(WH)
+LA
LA
R
B
-LAB
+
-
Trans-
ponder
Pin assignment:
Common ground for output A and B
Load A
Pin Core color
WH/white
BN/brown
GN/green
YE/yellow
GY/gray
PK/pink
BU/blue
RD/red
Function
Coded
actuator
Read head with
evaluation unit
CES-A-.5
Housing:
118 x 40 x 40 mm
Connection:
M 12x1
8-pin, screened
Read head
Safety input
Pulsed output
Input
Safety input
Pulsed output
Output circuit:
Screen bonding clamp
The screen on the connection cable
is connected internally to the screen
bonding clamp on the housing.
Safety PLC
with static /
dynamic signals
Connection example with safety PLC PSS 3056 (PILZ)
Power
supply
for load A
Test pulse 0
Test pulse 1

9
2096580-16-11/22 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-A-.5
EN
7. Changing the approach direction
NOTICE
Risk of damage to equipment as a result of trapped cables.
ÌMake sure that the cables are not trapped or torn off when the approach direction is changed.
The active face of the read head can be adjusted in 5 directions. It is marked by the red face.
1. Unscrew the screws on the fastening bracket.
2. Pull the read head off the fastening bracket and tilt the read head by 90° (arrow 2).
¨The active face is now pointing downward.
3. Turn the read head by 180° (arrow 3).
4. Re-tighten the screws for the read head on the fastening bracket. Tightening torque 0.6 Nm.
Housing
Fastening bracket
Active face
Read head
5. Remove the clip from the underside of the housing to change the lateral approach direction.
6. Pull the read head off the housing and turn it in 90° steps in the desired approach direction.
7. Fit the read head to the housing and re-t the clip.
Housing
Read head
Clip
Other approach directions

Operating Instructions
Non-Contact Safety Switch CES-A-.5
10 (translation of the original operating instructions) 2096580-16-11/22
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 bypassing
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 mounting the safety
switch and the actuator.
ÌFrom the assured release distance Sar, the safety outputs are safely shut down.
ÌWhen mounting several safety switches/actuators, observe the stipulated minimum distance to
avoid mutual interference.
min. 80mm
ÌIf the actuator is installed ush, the operating distances change as a function of the installation
depth and the guard material.
Operating
distance
Actuator
Operating
distance
Actuator
Flush mounting Surface maounting
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 operating distances 0.8xSao or closer when the guard is closed. 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 actuating range for the related actuator.
- when the guard is open up to the distance Sar (assured release distance), a hazard is excluded.
- the actuator is positively mounted on the 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 of 1Nm for mounting the safety switch and actuator. For actuators made
of PE-HD, the maximum tightening torque is only 0.5Nm.