EUCHNER CES-A-UEA-02B User manual

EN
Operating instructions
Non-Contact Safety System
CES-A-UEA-02B/CES-A-UEA-04B (Multicode)

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
2(Translation of the original operating instructions) 2097098-18-10/19
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 ......................................................................... 7
5. General safety precautions ................................................................................... 7
6. Function............................................................................................................... 8
6.1. Block diagrams CES-A-UEA-…..........................................................................................................9
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 CES-A-UEA-02B ..............................................................................................13
8.5. Connection example CES-A-UEA-04B ..............................................................................................14
9. Setup ................................................................................................................. 15
9.1. LED indicators..............................................................................................................................15
9.2. Parameter setting.........................................................................................................................15
9.2.1. Changing the conguration ............................................................................................16
9.3. Functional check...........................................................................................................................16
9.3.1. Self-test with test input TST ...........................................................................................17
10. System status table ............................................................................................ 18
11. Technical data .................................................................................................... 19
11.1. Evaluation unit CES-A-UEA-02B.......................................................................................................19
11.2. Evaluation unit CES-A-UEA-04B.......................................................................................................21
11.3. Read head CES-A-LNA-…...............................................................................................................23
11.4. Read head CES-A-LNA-SC ..............................................................................................................25
11.5. Read head CES-A-LCA-… ...............................................................................................................27
11.6. Read head CES-A-LQA-SC ..............................................................................................................29
11.7. Read head CES-A-LMN-SC..............................................................................................................31
11.8. Actuator CES-A-BBA/CES-A-BCA.....................................................................................................33
11.9. Actuator CES-A-BQA......................................................................................................................34

3
2097098-18-10/19 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
EN
11.10. Actuator CES-A-BDA-20 .................................................................................................................35
11.11. Actuator CES-A-BMB .....................................................................................................................36
12. Ordering information and accessories................................................................. 37
13. Inspection and service ........................................................................................ 37
14. Service .............................................................................................................. 37
15. Declaration of conformity ................................................................................... 38

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
4(Translation of the original operating instructions) 2097098-18-10/19
1. About this document
1.1. Scope
This document is valid for
ÌNon-Contact Safety System CES‑A‑UEA‑02B, evaluation unit for 2 read heads (order no. 097077)
ÌNon-Contact Safety System CES‑A‑UEA‑04B, evaluation unit for 4 read heads (order no. 097075)
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 and
maintenance CES-A…/
CES-AZ/CES-FD
(2109083)
ÌBasic safety information
ÌMaintenance instructions
Operating instructions
(2097098) (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
2097098-18-10/19 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
EN
2. Correct use
Evaluation units of the series CES-A are used to evaluate safety-related signals from EUCHNER read heads. The system
forms an interlocking device. It meets the requirements according to ENIEC60947-5-3.
The system consists of evaluation unit, read head and actuator. It forms an interlocking device with low coding level (type4).
In combination with a movable guard and the machine control, this system prevents dangerous machine functions from oc-
curring 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.
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-A-UEA…:
ÌCES read heads
ÌCEM read heads
ÌCET read heads
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.
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.

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
6(Translation of the original operating instructions) 2097098-18-10/19
Table 1: Possible combinations for CES components
Evaluation unit Read head
Actuator
CES-A-BBA 071840 CES-A-BCA 088786 CES-A-BDA-20 084720 CES-A-BMB 077791 CES-A-BQA 098108 CES-A-NBA-... All items CES-A-BPA 098775 CEM-A-BE05 094805 CEM-A-BH10 095175 CET-A-BWK-50X 096327
CES-A-UEA-02B
097077
CES-A-UEA-04B
097075
CES-A-LNA...
All items
CES-A-LNA-SC
077715
CES-A-LCA...
All items
CES-A-LMN-SC
077790
CES-A-LQA-SC
095650
CEM-A-LE05K-S2
094800
CEM-A-LE05R-S2
095792
CEM-A-LH10K-S3
095170
CEM-A-LH10R-S3
095793
CET-AX
Key to symbols
Combination possible
Combination possible, guard locking for process protection
Combination possible, guard locking for personnel protection
Combination not permissible
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/CET 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 19).
ÌSafety characteristics: category, Performance Level, PFHD(see Technical data on Page 20 and Page 22).

7
2097098-18-10/19 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
EN
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 parameter setting 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.

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
8(Translation of the original operating instructions) 2097098-18-10/19
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-A-UEA-02B: 2 read heads
ÌCES-A-UEA-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 15).
The read heads and actuators are assigned to the device in a special parameter setting 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.
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.
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.
If a permissible code is detected, the door monitoring output O1…O2 or O1…O4 (semiconductor output) on the related
read head is set to HIGH and the safety outputs (relay output) are 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…
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.

9
2097098-18-10/19 (Translation of the original operating instructions)
Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
EN
6.1. Block diagrams CES-A-UEA-…
CES-A-UEA-02B
Trans-
ponder
Trans-
ponder
Kopf 1 Kopf 2
AB
0 V
UB
TST
0V
S
H11 H21H12 H22SH1 SH2
DIA 14 1323 Y1
24 Y2
Demodulator
Filter
Verstärker
Komparator
KA
KB
Kopf - HF - Multiplexer
( 1 aus 4 )
J2
J1
O1 O2
+24 V
KA
KB
CPU-A
(Typ 1)
LED
STAT E
OUT
DIA
Star t
CPU-B
(Typ 2)
STATEOUT DIA
Y
Y
S
S
H
H
2
2
H
H
1
1
ON
ON
1
1
2
2
5
5
6
6
Activation of the
parameter setting
operation with jumper
on J1, J2
Read heads
Coded actuators
Trans-
ponder
Trans-
ponder
Head 1 Head 2
DC
+ 24 V
Operating
voltage
Demodulator
Filter
Amplier
Comparator
Head selection
CPU-A
(type 1)
Head - RF - multiplexer
(1 of 2)
CPU-B
CPU-B
CPU-A
CPU-A
Start
CPU-B
(type 2)
DIP switch
+UB, 0 V Power supply
J1, J2 Jumper for parameter setting operation
H11/H12/H21/H22 Connection read heads 1 ... 2
SH1, SH2 Shield
TST Test input (see chapter 9.3.1. Self‑test with test input TST on page 17)
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)

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
10 (Translation of the original operating instructions) 2097098-18-10/19
CES-A-UEA-04B
Tr ans-
ponder
Tr ans-
ponder
Tr ans-
ponder
Tr ans-
ponder
Kopf 1Kopf 2Kopf opf 4
ABCD
0 V
0V
S
H11H31 H21H41 H12H32 H22H42 SH1SH3 SH2SH4
O3 O4
14
13
23 24 Y2
Demodul ator
Filter
Ve rstärker
Komparat or
KA
KB
K
( 1 aus 4
TST
0V J2
J1
O1 O2 DI A23 Y1
24 Y2
+24 V
KA
KB
CPU- A
(Typ 1)
LED
STAT E
OUT
DI A
Star tStart
CPU- B
(Typ 2)
STATEOUT DIA
UB
Y
Y
S
S
H
H
4
4
H
H
3
3
H
H
2
2
H
H
1
1
ON
ON
1
1
2
2
3
3
4
4
5
5
6
6
Head selection
Demodulator
Filter
Amplier
Comparator
CPU-A
(type 1)
Head -RF - mulitplexer
(1 of 4)
CPU-B
CPU-B
CPU-A
CPU-A
CPU-B
(type 2)
DIP switch
Activation of the
parameter setting
operation with jumper
on J1, J2
Read heads
Coded
actuators
Trans-
ponder
Head 1
DC
+ 24 V
Operating
voltage
Trans-
ponder
Trans-
ponder
Trans-
ponder
Head 2 Head 3 Head 4
+UB, 0 V Power supply
J1, J2 Jumper for parameter setting operation
H11/H12...H41/H42 Connection read heads 1 ... 4
SH1 ...SH4 Shield
TST Test input (see chapter 9.3.1. Self‑test with test input TST on page 17)
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)