EUCHNER CES-AZ-AES Series User manual

EN
Operating instructions
Non-Contact Safety System
CES-AZ-AES-… (Unicode)

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
2(Translation of the original operating instructions) 2104766-13-08/20
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 .......................................................................... 7
4. Exclusion of liability and warranty ......................................................................... 8
5. General safety precautions ................................................................................... 8
6. Function............................................................................................................... 9
6.1. Block diagrams CES-AZ-AES-…......................................................................................................10
7. Mounting............................................................................................................ 11
8. Electrical connection .......................................................................................... 12
8.1. Notes about ..........................................................................................................................12
8.2. Safety in case of faults..................................................................................................................12
8.3. Fusing of the power supply and the safety contacts.........................................................................12
8.4. Connection example for CES-AZ-AES-01B .......................................................................................13
8.5. Connection example for CES-AZ-AES-02B .......................................................................................14
8.6. Connection example for CES-AZ-AES-04B .......................................................................................15
9. Setup ................................................................................................................. 16
9.1. LED indicators..............................................................................................................................16
9.2. Teach-in operation.........................................................................................................................16
9.2.1. Changing the conguration/new actuators ......................................................................17
9.3. Functional check...........................................................................................................................18
9.3.1. Self-test with test input TST ...........................................................................................18
10. System status table ............................................................................................ 19
11. Technical data .................................................................................................... 20
11.1. Evaluation unit CES-AZ-AES-01B .....................................................................................................20
11.2. Evaluation unit CES-AZ-AES-02B .....................................................................................................22
11.3. Evaluation unit CES-AZ-AES-04B .....................................................................................................24
11.4. Read head CES-A-LNN-…...............................................................................................................26
11.5. Read head CES-A-LSP-… ...............................................................................................................28
11.6. Read head CES-A-LNA-…...............................................................................................................30
11.7. Read head CES-A-LNA-SC ..............................................................................................................32
11.8. Read head CES-A-LCA-… ...............................................................................................................34

3
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
11.9. Read head CES-A-LQA-SC ..............................................................................................................36
11.10. Read head CES-A-LMN-SC..............................................................................................................38
11.11. Actuator CES-A-BBN......................................................................................................................40
11.12. Actuator CES-A-BSP ......................................................................................................................41
11.13. Actuator CES-A-BDN-06.................................................................................................................42
11.14. Actuator CES-A-BBA/CES-A-BCA.....................................................................................................43
11.15. Actuator CES-A-BQA......................................................................................................................44
11.16. Actuator CES-A-BDA-20 .................................................................................................................45
11.17. Actuator CES-A-BDA-18 .................................................................................................................46
11.18. Actuator CES-A-BMB .....................................................................................................................47
12. Ordering information and accessories................................................................. 48
13. Inspection and service ........................................................................................ 48
14. Service .............................................................................................................. 48
15. Declaration of conformity ................................................................................... 49

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
4(Translation of the original operating instructions) 2104766-13-08/20
1. About this document
1.1. Scope
This document is valid for
ÌNon-Contact Safety System CES‑AZ‑AES‑01B, evaluation unit for 1 read head (order no. 104770)
ÌNon-Contact Safety System CES‑AZ‑AES‑02B, evaluation unit for 2 read heads (order no. 104775)
ÌNon-Contact Safety System CES‑AZ‑AES‑04B, evaluation unit for 4 read heads (order no. 104780)
These operating instructions, the document Safety information and any enclosed data sheet form the complete user infor-
mation 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
Signal
word:
DANGER
WARNING
CAUTION
Consequence if not observed:
Death or severe injuries
Possibly death or severe injuries
Possibly minor injuries
NOTICE
Important!
Signal
word:
NOTICE
Important!
Malfunction or device damage possible
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
(2104766) (this document)
Internet
www
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
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
2. Correct use
Evaluation units of the series CES-AZ are used to evaluate safety-related signals from EUCHNER read heads. Depending
on the read heads used, the system can form an interlocking device with or without guard locking. The system meets the
requirements according to ENIEC60947-5-3.
The following applies in combination with a CES or CEM read head:
The system consists of evaluation unit, read head and actuator. It forms an interlocking device with high coding level
(type4).
In combination with a movable guard and the machine control, this system 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 12100 or relevant C-standards.
The following applies in combination with a CET read head:
The system comprising evaluation unit, read head with guard locking and actuator forms an interlocking device with
guard locking featuring a high coding level (type4).
In combination with a movable guard and the machine control, this system prevents the guard from being opened
while a dangerous machine function is being performed.
This means:
ÌStarting commands that cause a dangerous machine function must become active only when the guard is closed
and locked.
ÌThe guard locking must not be unlocked until the dangerous machine function has ended.
Closing and locking a guard must not cause automatic starting of a dangerous machine function. A separate start
command must be issued. For exceptions, refer to EN 12100 or relevant C-standards.
Before use, a risk assessment must be performed on the machine, e.g. according to the following standards:
ÌENISO13849-1
ÌENISO12100
ÌIEC62061
Correct use includes observing the relevant requirements for installation and operation, e.g. according to the following
standards:
ÌENISO13849-1
ÌENISO14119
ÌEN60204-1
The following components can be connected to the evaluation unit CES-AZ-AES…:
ÌCES read heads
ÌCEM read heads
ÌCET read heads
ÌCKS key adapter
For further information, refer to the operating instructions of the corresponding component and to Table 1: Possible com‑
binations for CES components on page 6.

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
6(Translation of the original operating instructions) 2104766-13-08/20
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.
ÌCorrect use requires observing the permissible operating parameters (see technical data).
ÌIf a data sheet is included with the product, the information on the data sheet applies.
ÌIt is only allowed to use components that are permissible in accordance with the table below.
Table 1: Possible combinations for CES components
Evaluation unit Read head
Actuator
CES-A-BSP-104970 104970 CES-A-BBN-106600 106600 CES-A-BDN-06-104730 104730 CES-A-BBA 071840 CES-A-BCA 088786 CES-A-BQA 098108 CES-A-BDA-20 084720 CES-A-BDA-18 156935 CES-A-BMB 077791 CEM-A-BE05 094805 CEM-A-BH10 095175 CET-A-BWK-50X 096327 CKS-A-BK1… CKS key
CES-AZ-AES-01B
104770
CES-AZ-AES-02B
104775
CES-AZ-AES-04B
104780
CES-AZ-UES-01B
105139
CES-AZ-UES-02B
105140
CES-AZ-UES-04B
105141
CES-A-LSP-…
All items 20
CES-A-LNN-…
All items 15 19
CES-A-LCA-…
All items 15 15 16 16
CES-A-LNA-…
All items 15 15 16 16
CES-A-LQA-SC
095650 15 15 23
CES-A-LMN-SC
077790 8 8 9 9 5
CEM-A-LE05K-S2
094800
CEM-A-LE05R-S2
095792
CEM-A-LH10K-S3
095170
CEM-A-LH10R-S3
095793
CET1-AX-LRA-…
095735
CET1-AX-LDA-…
100399
CES-AZ-AES-01B
104770
CES-AZ-AES-02B
104775
CES-AZ-AES-04B
104780
CKS-A-L1B-…
113130 l
Key to symbols
lCombination possible
15 Combination possible, typ. switch-on distance 15mm
Combination possible, guard locking for process protection
Combination possible, guard locking for personnel protection
Combination not permissible

7
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
3. Description of the safety function
Devices from this series feature the following safety functions:
The following applies in combination with read heads without guard locking (CES read heads) and read heads with guard
locking for process protection (CEM read heads):
Monitoring of the position of a guard
(interlocking device according to EN ISO 14119)
ÌSafety function:
- The safety contacts are switched off when the guard is open (see chapter 11. Technical data on page 20).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 11. Technical data on page 20).
The following applies in combination with read heads with guard locking (CET-AX):
Monitoring of guard locking and the position of the guard
(interlocking device with guard locking according to EN ISO 14119)
ÌSafety function (see chapter 11. Technical data on page 20):
- The safety contacts are switched off when guard locking is released (monitoring of the locking element).
- The safety contacts are switched off when the guard is open.
- Guard locking can be activated only when the actuator is located in the switch head (prevention of inadvertent locking
position (faulty closure protection)).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 11. Technical data on page 20).
Control of guard locking
ÌIf the device is used as guard locking for personnel protection, the control of the guard locking must be regarded as a
safety function.
ÌThe device does not feature a safety characteristic for the control of the guard locking, because the guard locking so-
lenoid is completely disconnected from outside the device (no control function within the device). It therefore does not
contribute to the failure probability.
ÌThe safety level for the control of guard locking is determined exclusively by the external control (e.g. PFHDext. for the
standstill monitor).
PFHDext.
Guardlocking Device
(e.g. standstill
monitor)
(locking mean)

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
8(Translation of the original operating instructions) 2104766-13-08/20
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
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 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.
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.
ÌThe number of teach-in and switching operations is saved in the internal memory of the evaluation
unit. If necessary, this memory can be read by the manufacturer.
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.

9
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
6. Function
The safety system consists of three components:
ÌCoded actuator
ÌRead head
ÌEvaluation unit
The number of read heads that can be connected depends on the evaluation unit:
ÌCES-AZ-AES-01B: 1 read head
ÌCES-AZ-AES-02B: 2 read heads
ÌCES-AZ-AES-04B: 4 read heads
The evaluation unit can be congured so that a start button (monitoring of the falling edge) and a feedback loop can be
connected to monitor external relays and contactors. The individual conguration is dened by a setup procedure (see
chapter 9. Setup on page 16).
The read heads and actuators are assigned to the device in a special teach-in operation.
Each delivered actuator possesses a unique electronic coding and so is a unique element in the system used. The code in
an actuator cannot be reprogrammed.
The read heads are fastened to the xed part of the guard and are each connected to the evaluation unit via a two-core
shielded cable (terminals H.1, H.2 and SH.).
The actuator fastened to the movable part of the guard is moved towards the read head by closing the door. When the
switch-on distance is reached, power is supplied to the actuator by the read head by induction and data can be transferred.
The read code is compared with the taught-in code in the evaluation unit.
If the data match, door monitoring output O1 or O1…O2 or O1…O4 (semiconductor output) on the related read head is
set to HIGH. If all data for all read heads activated match, the safety outputs (relay output) are then enabled. The OUT LED
illuminates.
Optionally, a feedback loop can be connected to the evaluation unit. The evaluation unit can then only be started with the
feedback loop closed. A welded contactor contact in the enable path will thus be detected the next time the machine is started.
Due to the combination of dynamic polling of the actuators and the redundant, diverse design of the safety electronics with
redundantly controlled safety outputs, the evaluation unit will enter the safe state with every detectable fault.
When a guard is opened or when guard locking is released, the safety outputs switch off the safety circuit and the OUT LED
goes out. The state of the safety outputs is monitored internally by positively driven NC contacts (relay output).
Independent of the switching state of the safety circuit, the position of all safety doors can be polled via the outputs O1 or
O1…O2 or O1…O4.
If an internal fault occurs in the evaluation unit, the safety circuit is switched off, the diagnostic output (DIA) is set to HIGH
and the DIA LED illuminates red.

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
10 (Translation of the original operating instructions) 2104766-13-08/20
6.1. Block diagrams CES-AZ-AES-…
CES-AZ-AES-01B
CES-AZ-AES-02B
CES-AZ-AES-04B
0V
TST
UB
CES-AZ-AES-04B
104780
J1 J2 SH1
O1
Read-
head 1
H11
Trans-
ponder
O2
H12
EUCHNER
O3
SH2
O4
Read-
head 2
H21
DIA
Trans-
ponder
H22
23
SH3
24
Read-
head 3
H31
Trans-
ponder
13
H32
14
SH4
Y1
Read-
head 4
H41
Y2
Trans-
ponder
H42
S
K2
+
K1
+
Activation of the
teach-in operation
with jumper on
J1, J2.
UB, 0V Power supply
J1, J2 Jumper for teach-in operation
H11/H12…H41/H42 Connection for read heads 1…4
SH1…SH4 Shield for read heads 1…4
TST Test input (see 9.3.1. Self‑test
with test input TST on page
18)
O1…O4 Semiconductor monitoring
outputs
DIA Diagnostic output
13, 14 Connection for relay contact A,
safety relay enable
23, 24 Connection for relay contact B,
safety relay enable
Y1, Y2 Feedback loop
S Start button connection
(monitoring of the falling edge)
0V
TST
UB
CES-AZ-AES-01B
104770
JSH1
O1
Read-
head 1
H11
Trans-
ponder
H12
EUCHNER
DIA23 24 13 14 Y1 Y2 S
K2
+
K1
+
Activation of the
teach-in operation
with jumper on
J, 0V.
UB, 0V Power supply
J, 0V Jumper for teach-in operation
H11/H12 Read head 1 connection
SH1 Read head 1 shield
TST Test input (see chapter 9.3.1.
Self‑test with test input TST on
page 18)
O1 Semiconductor monitoring output
DIA Diagnostic output
13, 14 Connection for relay contact A,
safety relay enable
23, 24 Connection for relay contact B,
safety relay enable
Y1, Y2 Feedback loop
S Start button connection
(monitoring of the falling edge)
0V
TST
UB
CES-AZ-AES-02B
104775
J1 J2 SH1
O1
Read-
head 1
H11
Trans-
ponder
O2
H12
EUCHNER
SH2
Read-
head 2
H21
DIA
Trans-
ponder
H22
23 24 13 14 Y1 Y2 S
K2
+
K1
+
Activation of the
teach-in operation
with jumper on
J1, J2.
UB, 0V Power supply
J1, J2 Jumper for teach-in operation
H11/H12, H21/H22 Connection for read heads 1 and
2
SH1, SH2 Shield for read heads 1 and 2
TST Test input (see 9.3.1. Self‑test
with test input TST on page
18)
O1, O2 Semiconductor monitoring
outputs
DIA Diagnostic output
13, 14 Connection for relay contact A,
safety relay enable
23, 24 Connection for relay contact B,
safety relay enable
Y1, Y2 Feedback loop
S Start button connection
(monitoring of the falling edge)

11
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
7. Mounting
NOTICE
Device damage due to improper installation or unsuitable ambient conditions.
ÌRead heads and actuators must not be used as a mechanical end stop.
ÌObserve EN ISO 14119:2013, sections 5.2 and 5.3, for information about fastening the safety
switch and the actuator.
ÌObserve EN ISO 14119:2013, section 7, for information about reducing the possibilities for by-
passing an interlocking device.
ÌThe evaluation unit must be mounted in a control cabinet with a minimum degree of protection of
IP54. A snap-in element on the rear of the device is used for fastening to a mounting rail.
ÌIf several evaluation units are mounted side by side in a control cabinet without air circulation (e.g.
fan), a minimum distance of 10mm must be maintained between the evaluation units. This dis-
tance enables the heat from the evaluation unit to dissipate.
Important!
ÌFrom the assured release distance Sar, the safety outputs are safely shut down.
ÌWhen mounting several read heads, observe the stipulated minimum distance to avoid mutual in-
terference.
- For CES-A-LNA/-LCA smin=50mm
- For CES-A-LMN smin=20mm
- For CES-A-LQA smin=80mm
- For CES-A-LNN smin=160mm
-
smin
ÌIf the actuator is installed ush, the switching distance changes as a function of the installation
depth and the guard material.
Operating
distance
Actuator
Operating
distance
Actuator
Flush mounting Surface mounting
Note the following points:
ÌActuator and read head must be tted so that
- the front faces are at the minimum operating distance 0.8xSao or closer when the guard is closed (see section Actu-
ating ranges). To avoid entering the area of possible side lobes, a minimum distance is to be maintained in case of a
side approach direction. See section Typical actuating range for the related actuator.
- a hazard is excluded until the assured release distance (Sar) is reached when the guard is open.
- 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 for the read head or safety switch and actuator fastenings of 1Nm. For
read heads/actuators made of PE-HD, the maximum tightening torque is only 0.5Nm.

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
12 (Translation of the original operating instructions) 2104766-13-08/20
8. Electrical connection
WARNING
If there is a mistake, loss of the safety function due to incorrect connection.
ÌMonitoring outputs must not be used as safety outputs.
ÌLay the connecting cables with protection to prevent the risk of short circuits.
NOTICE
Risk of damage to equipment or malfunctions as a result of incorrect connection.
ÌAll the electrical connections must either be isolated from the mains supply by a safety transform-
er according to IEC 61558-2-6 with limited output voltage in the event of a fault, or by other equiv-
alent isolation measures.
ÌAll electrical outputs must have an adequate protective circuit for inductive loads. The outputs
must be protected with a free-wheeling diode for this purpose. The switch-on current may have to
be limited for capacitive loads.
ÌThe tightening torque for the screws on the connection terminals must be 0.6…0.8Nm.
ÌThe connection cable for the read heads must only be extended using EUCHNER plug connectors,
and adequate consideration must be given to EMC. Intermediate terminals must not be used.
ÌThe shield on the connection cable for the read head must be connected to the appropriate termi-
nal SH1…4 on the evaluation unit. The portion of cable from which insulation is stripped should
be kept as short as possible (max. 3cm).
8.1. Notes about
Important!
ÌFor use and operation as per the requirements1), a power supply with the feature “for use in
Class 2 circuits” must be used.
Alternative solutions must comply with the following requirements:
- Electrically isolated power supply unit in combination with fuse as per UL248. This fuse should be
designed for max. 3.3A and should be integrated into the 30VDC voltage section.
1) Note on the scope of the UL approval: The devices have been tested as per the requirements of UL508 and CSA/C22.2 no. 14 (protection against electric shock
and re).
8.2. Safety in case of faults
ÌThe operating voltage UBis reverse polarity protected.
ÌThe connections for the read heads are not short circuit-proof.
ÌA short circuit between 13/14 and 23/24 can be detected only by means of external pulsing.
ÌA short circuit in the cable can be excluded by laying the cable with protection.
8.3. Fusing of the power supply and the safety contacts
ÌProvide external contact fuses (6AgG fuse or 6A circuit breaker, characteristic B or C) for relay outputs.
ÌThe power supply must be protected with a max. 8A fuse ahead of terminal UB.

13
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
8.4. Connection example for CES-AZ-AES-01B
24 VDC
GND
-F1
0V
TST
-F2
UB
CES-AZ-AES-01B
104770
JSH1
O1
Read-
head 1
H11
Trans-
ponder
H12
EUCHNER
-V1
DIA
-K3
A1
A2
23 24
-V2
13 14
-K4
A1
A2
feedback loop
Y1 Y2
-K4
21
22
-K3
21
22
S
Start
L1
-K3 13
14
-K4 13
14
M
3~
-M1
L2
23
24
23
24
L3
33
34
33
34
K2
+
K1
+
Important!
To achieve category 4 according to EN ISO 13849-1, it is necessary to monitor the downstream
contactors (here: contacts on -K3 and -K4 in the feedback loop).
This example shows only an excerpt that is relevant for the connection of the CES system. The example
illustrated here does not show complete system planning. The user is responsible for safe integration
into the overall system.
If only one enable path is to be used for control (e.g. of downstream contactors), failures involving a short circuit between
the contacts on the enable path and, for example, the power supply must be excluded.
With reference to EN ISO 13849-2 Table D.5, this exclusion can be provided if
Ìthe cables are inside an electrical installation space and
Ìthe enclosure meets the related requirements (see EN 60204-1 or IEC60204-1).

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
14 (Translation of the original operating instructions) 2104766-13-08/20
8.5. Connection example for CES-AZ-AES-02B
24 VDC
GND
-F1
0V
TST
-F2
UB
CES-AZ-AES-02B
104775
J1 J2 SH1
O1
Read-
head 1
H11
Trans-
ponder
O2
H12
EUCHNER
SH2
-V1
Read-
head 2
H21
DIA
Trans-
ponder
H22
-K3
A1
A2
23 24
-V2
13 14
-K4
A1
A2
feedback loop
Y1 Y2
-K4
21
22
-K3
21
22
S
Start
L1
-K3 13
14
-K4 13
14
M
3~
-M1
L2
23
24
23
24
L3
33
34
33
34
K2
+
K1
+
Important!
To achieve category 4 according to EN ISO 13849-1, it is necessary to monitor the downstream
contactors (here: contacts on -K3 and -K4 in the feedback loop).
This example shows only an excerpt that is relevant for the connection of the CES system. The example
illustrated here does not show complete system planning. The user is responsible for safe integration
into the overall system.
If only one enable path is to be used for control (e.g. of downstream contactors), failures involving a short circuit between
the contacts on the enable path and, for example, the power supply must be excluded.
With reference to EN ISO 13849-2 Table D.5, this exclusion can be provided if
Ìthe cables are inside an electrical installation space and
Ìthe enclosure meets the related requirements (see EN 60204-1 or IEC60204-1).

15
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
8.6. Connection example for CES-AZ-AES-04B
24 VDC
GND
-F1
0V
TST
-F2
UB
CES-AZ-AES-04B
104780
J1 J2 SH1
O1
Read-
head 1
H11
Trans-
ponder
O2
H12
EUCHNER
O3
SH2
O4
-V1
Read-
head 2
H21
DIA
Trans-
ponder
H22
-K3
A1
A2
23
SH3
24
-V2
Read-
head 3
H31
Trans-
ponder
13
H32
14
-K4
A1
A2
feedback loop
SH4
Y1
Read-
head 4
H41
Y2
-K4
21
22
-K3
21
22
Trans-
ponder
H42
S
Start
L1
-K3 13
14
-K4 13
14
M
3~
-M1
L2
23
24
23
24
L3
33
34
33
34
K2
+
K1
+
Important!
To achieve category 4 according to EN ISO 13849-1, it is necessary to monitor the downstream
contactors (here: contacts on -K3 and -K4 in the feedback loop).
This example shows only an excerpt that is relevant for the connection of the CES system. The example
illustrated here does not show complete system planning. The user is responsible for safe integration
into the overall system.
If only one enable path is to be used for control (e.g. of downstream contactors), failures involving a short circuit between
the contacts on the enable path and, for example, the power supply must be excluded.
With reference to EN ISO 13849-2 Table D.5, this exclusion can be provided if
Ìthe cables are inside an electrical installation space and
Ìthe enclosure meets the related requirements (see EN 60204-1 or IEC60204-1).

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
16 (Translation of the original operating instructions) 2104766-13-08/20
9. Setup
9.1. LED indicators
Designation Color Meaning
STATE green Status indication (multifunction display using ashing modes)
OUT yellow Safety circuit closed
DIA red
ÌOperating fault or
ÌExternal fault (fault in the feedback loop) or
ÌTeach-in operation not valid or
ÌInternal device fault or
ÌTST input activated (function test active)
9.2. Teach-in operation
Before the system forms a functional unit, the parameters are set in the evaluation unit using a teach-in operation (number
of connected read heads, assignment of the actuators to the read heads, with or without automatic start, with or without
feedback loop). During this process the read heads are activated and the actuator code taught-in.
These conguration parameters are saved in the device.
During the teach-in operation the safety outputs are open. The system is in the safe state.
Important!
ÌThe teach-in operation can differ for read heads that are not described in this document. Observe
the information in the operating instructions for the read head used.
ÌDuring the teach-in operation the following conditions must be met:
- There must be no state change, e.g. due to the opening or closing of a safety door or a change
in the signal on the terminals for the start button and the feedback loop.
- The power supply must not be switched off.
ÌIf these conditions are not met, the evaluation unit switches to the safe fault state (diagnostics LED
illuminates) and signals this operating fault with the STATE LED by 3 short ashes that are repeat-
ed every second. The teach-in operation must be repeated.
ÌThe number of teach-in operations is unlimited. The evaluation unit can be re-congured as often
as required.
ÌActuators cannot be interchanged without a renewed teach-in operation.
ÌAn actuator that has not been subjected to teach-in will not be detected by the related read head.
ÌEven if only one new actuator needs to be taught, a complete new teach-in operation must be car-
ried out as described in the section Setup.
ÌDo not change DIP switches during operation.
To trigger a teach-in operation, the user must perform the following actions in the stipulated order:
1. Prepare for teach-in operation
- Switch off power supply UB
- Fit a jumper between terminals J1 and J2 (for CES-AZ-AES-01B between J and 0V)
2. Set required conguration on DIP switches
Switch designation Switch position left (OFF) Switch position right (ON)
1 No read head connected to terminals
H11, H12, SH1
Read head connected to terminals
H11, H12, SH1
2 No read head connected to terminals
H21, H22, SH2
Read head connected to terminals
H21, H22, SH2
3 No read head connected to terminals
H31, H32, SH3
Read head connected to terminals
H31, H32, SH3
4 No read head connected to terminals
H41, H42, SH4
Read head connected to terminals
H41, H42, SH4
5 Automatic start
(no start button connected)
Manual start
(start button connected)
6 No feedback loop connected Feedback loop connected

17
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
3. Set required conguration on machine
- Close all doors to be monitored (the actuators must be in the actuating range of the related read head)
- For operating mode Manual start: keep start button closed
- For operating mode with feedback loop: keep feedback loop closed
4. Start teach-in operation
- Switch on operating voltage
- Wait for self-test (STATE LED ashes for approx. 10 seconds at 15Hz)
- Teach-in operation starts (STATE LED ashes at approx. 1Hz)
- Wait for acknowledgment of the teach-in operation (STATE LED goes out after approx. 10 seconds)
5. End teach-in operation
- Remove jumper between J1 and J2 (for CES-AZ-AES-01B between J and 0V)
- For operating mode Manual start: start button must be connected
- For operating mode with feedback loop: feedback loop must be connected
- Press reset button or interrupt operating voltage for at least 10 seconds
- Wait for self-test (STATE LED ashes for approx. 10 seconds at 15Hz)
6. Check all guards for effectiveness
9.2.1. Changing the conguration/new actuators
The evaluation unit can be re-congured as often as required. For this purpose you must proceed as per the rst teach-in
operation according to section 9.2. Teach‑in operation on page 16. Faulty actuators can be replaced. Then a complete
teach-in operation must be performed again.

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
18 (Translation of the original operating instructions) 2104766-13-08/20
9.3. Functional check
After installation and any fault, the safety function must be fully checked. Proceed as follows:
WARNING
Danger of fatal injury as a result of faults in installation and functional check.
ÌBefore carrying out the functional check, make sure that there are no persons in the danger zone.
ÌObserve the valid accident prevention regulations.
1. Switch on operating voltage.
- The safety switch carries out a self-test.
The green STATE LED ashes for approx. 10 seconds at 15Hz.
The STATE LED then illuminates continuously.
The OUT and DIA LEDs do not illuminate.
2. Close all guards.
- The machine must not start automatically.
- The green STATE LED and the yellow OUT LED light up continuously.
3. Enable operation in the control system.
4. Open the guard.
- The machine must switch off and it must not be possible to start it as long as the guard is open.
- The green STATE LED illuminates continuously; the OUT and DIA LEDs do not illuminate.
Repeat steps 2…4 separately for each guard.
9.3.1. Self-test with test input TST
On electromechanical safety switches or magnetic switches, the function test can be performed by cyclically opening the
guard.
From category 2 according to ENISO13849-1, EN 60204-1 : 1997 (section 9.4.2.4) requires a function test performed
on the entire safety system on start-up or after dened intervals.
Testing of the internal function of the unit is not necessary because the device monitors itself in real time. Welding of an
output contact (relay output) is detected by the device at the latest the next time the guard is opened. A short circuit in the
output cable is not detected by the device.
In addition, the entire safety circuit can be tested without opening the guard. For this purpose, opening of the guard can be
simulated by applying 24 V DC to the test input TST.
The safety outputs are switched off, enabling testing of the complete safety circuit. The diagnostic output DIA on the eval-
uation unit is also set to HIGH as a monitoring function.
When test input TST is reset, the evaluation unit resets the diagnostic output DIA to LOW, the red LED switches off and
normal operation is continued.
In Manual start operating mode, the start button must be pressed again to start the system.
Important!
After the self-test, the test input TST must be connected to 0 V again or must be disconnected.

19
2104766-13-08/20 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-AZ-AES-…
EN
10. System status table
Operating mode
LED indicator
State
STATE (green) OUT (yellow) DIA (red)
Setup
4Hz Initial setup after delivery without jumper connected to J1, J2 or J, 0V.
1Hz Teach-in operation
Acknowledgment of completion of teach-in operation.
Normal operation
15Hz
(10 s) Self-test, duration approx. 10 seconds, is performed after the application of the operating voltage UB
Normal operation, not all monitored doors are closed.
Normal operation, all monitored doors are closed (after pressing the start button, for Manual start operating
mode)
Function test Function test active (TST input=24 V)
Fault display Internal component failure or actuator CES-A-BMB in the impermissible range or excessively high external interfer-
ence (EMC)
Operating fault
3x
Conguration error:
Teach-in operation must be performed again
Possible causes:
- State change during the teach-in operation
- The DIP switch setting and the conguration did not match during the teach-in operation
- DIP switch setting has been changed without teach-in operation
- The jumper (J1, J2 or J, 0V) was tted with power supply switched on
- Closed feedback loop (Y1,Y2) present, although a feedback loop was not present during teach-in
- 24 V signal present at the start button input (S) although teach-in was performed with “Automatic start” operating
mode.
4 x
Fault in feedback loop
Possible causes:
- Malfunction of the monitored contactor
- Following removal from the actuating range, actuator is not outside the actuating range long enough; as a result
the feedback loop cannot be closed in this short time. Note the release time for the monitored contactor.
- Feedback loop was not closed on starting the evaluation unit
- Feedback loop was not closed on applying the operating voltage +UB.
Key to symbols
N 0 Volt or not connected
1 24 Volt
0 0 Volt
LED not illuminated
LED illuminated
15Hz (10 s) LED ashes for 10 seconds at 15Hz
3 x + LED ashes three times and then illuminates continuously
3 x LED ashes three times, and this is then repeated
X Any state
Important!
If you do not nd the displayed device status in the system status table, this indicates an internal device
fault. In this case, you should contact the manufacturer.
NOTICE
The read heads CES-A-LNN and CES-A-LSP have an integrated LED to indicate the door position. The
LED illuminates with the guard closed.

Operating instructions
Non-Contact Safety System CES-AZ-AES-…
20 (Translation of the original operating instructions) 2104766-13-08/20
11. Technical data
11.1. Evaluation unit CES-AZ-AES-01B
ÌHousing for rail mounting, IP20
ÌRelay output
Ì1 read head can be connected
Dimension drawing
114
22,5
99
Safety Unit
CES-AZ
H11
+UB
H12
0V
SH1
STATE OUT DIA
13 O1 Y1 23
14 DIA Y2 24
Unicode
RESET
TST
J
S
S
Y
5 6
Suitable for standard 35mm mounting rail
Switching characteristics
Ì2 safety outputs with 2 NO contacts each
(relay outputs)
Ì1 door monitoring output (semiconductor
output, not a safety output)
Important!
The plug-in screw terminals are not included (see chapter 12. Ordering information and accessories
on page 48).
Approvals
Guard
closed
(actuator detected)
open
(actuator not in the actuating range)
Read head Actuator Read head
V O1
13 14
23 24
24
13 14
23 24
24 V O1