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)

11
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
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
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 assured operating distance 0.8xSao or closer when the guard is closed (see sec-
tion Actuating 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-A-UEA-02B/CES-A-UEA-04B
12 (Translation of the original operating instructions) 2097098-18-10/19
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
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
8.4. Connection example CES-A-UEA-02B
24 VDC
GND
-F1
0V
TST
-F2
UB
CES-A-UEA-02B
097077
J1 J2
O1
SH1
O2
Read-
head1
H11
Trans-
ponder
O3
H12
O4
-V1
SH2
DIA
-K1
A1
A2
Read-
head 2
H21
Trans-
ponder
23
H22
24
-V2
13 14
-K2
A1
A2
feedback loop
Y1
EUCHNER
Y2
-K2
21
22
-K1
21
22
SStart
L1
-K1 13
14
-K2 13
14
M
3~
-M1
L2
23
24
23
24
L3
33
34
33
34
Important!
To achieve category 4 according to EN ISO 13849-1, it is necessary to monitor the downstream
contactors (here: contacts on -K1 and -K2 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.

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
14 (Translation of the original operating instructions) 2097098-18-10/19
8.5. Connection example CES-A-UEA-04B
24 VDC
GND
-F1
0V
TST
-F2
UB
CES-A-UEA-04B
097075
J1 J2 SH1
O1
Read-
head1
H11
Trans-
ponder
O2
H12
EUCHNER
O3
SH2
O4
-V1
Read-
head 2
H21
DIA
Trans-
ponder
H22
-K1
A1
A2
23
SH3
24
-V2
Read-
head 3
H31
Trans-
ponder
13
H32
14
-K2
A1
A2
feedback loop
SH4
Y1
Read-
head 4
H41
Y2
-K2
21
22
-K1
21
22
Trans-
ponder
H42
SStart
L1
-K1
13
14
-K2
13
14
M
3~
-M1
L2
23
24
23
24
L3
33
34
33
34
Important!
To achieve category 4 according to EN ISO 13849-1, it is necessary to monitor the downstream
contactors (here: contacts on -K1 and -K2 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.

15
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
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
ÌInvalid parameter setting operation or
ÌInternal device fault or
ÌTST input activated (function test active)
9.2. Parameter setting
Before the system forms a functional unit, the parameters are set in the evaluation unit (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.
These conguration parameters are saved in the device.
During the parameter setting operation the safety outputs are open. The system is in the safe state.
Important!
ÌThe parameter setting 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 parameter setting operation the following conditions must be met:
- There must be no state change, e.g. opening or closing of the 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 parameter setting operation must be repeated.
ÌThe number of parameter setting operations is unlimited. The evaluation unit can be re-congured
as often as required.
ÌDo not change DIP switches during operation.
To trigger a parameter setting operation, the user must perform the following actions in the stipulated order:
1. Prepare for parameter setting
- Switch off power supply UB
- Fit a jumper between terminals J1 and J2
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
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

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
16 (Translation of the original operating instructions) 2097098-18-10/19
4. Start parameter setting operation
- Switch on operating voltage
- Wait for self-test (STATE LED ashes for approx. 10 seconds at 15Hz)
- Parameter setting operation starts (STATE LED ashes at approx. 1Hz)
- Wait for acknowledgment of the parameter setting operation (STATE LED goes out after approx. 10 seconds)
5. End parameter setting operation
- Remove jumper between J1 and J2
- For operating mode Manual start: start button must be connected
- For operating mode with feedback loop: feedback loop must be connected
- 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
The evaluation unit can be re-congured as often as required. For this purpose you must proceed as per the rst parameter
setting operation according to the section 9.2. Parameter setting on page 15.
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.

17
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
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.

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
18 (Translation of the original operating instructions) 2097098-18-10/19
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.
1Hz Parameter setting operation
Acknowledgment of completion of parameter setting 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:
Parameter setting operation must be performed again
Possible causes:
- State change during the parameter setting operation
- The DIP switch setting and the conguration did not match during the parameter setting operation
- DIP switch setting has been changed without parameter setting operation
- The jumper (J1, J2) was tted with power supply switched on
- Closed feedback loop (Y1,Y2) present, although no feedback loop parameter setting was performed
- 24 V signal present at the start button input (S) although parameter setting 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.

19
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. Technical data
11.1. Evaluation unit CES-A-UEA-02B
ÌHousing for rail mounting, IP20
ÌRelay output
Ì2 read heads can be connected
Dimension drawing
45
99
114
Suitable for 35mm mounting rail according to EN60715
Switching characteristics
Ì2 safety outputs (relay outputs)
Ì2 door monitoring outputs (semiconduc-
tor outputs, not safety outputs)
Approvals
13 14
23 24
24 VO1
13 14
23 24
24
VO
1
24 VO224
VO
2
Guard
closed
(all actuators detected)
open
(e.g. actuator 1 not in the actuating
range)
Read head 1 Actuator 1 Read head 1

Operating instructions
Non-Contact Safety System CES-A-UEA-02B/CES-A-UEA-04B
20 (Translation of the original operating instructions) 2097098-18-10/19
Technical data for CES-A-UEA-02B
Parameter Value Unit
min. typ. max.
Housing material PA6.6 plastic
Dimensions 114x99x45 mm
Weight 0.25 kg
Ambient temperature at UB=DC 24 V -20 - +55 °C
Atmospheric humidity, not condensing - - 80 %
Degree of protection IP20
Degree of contamination 2
Mounting Mounting rail 35mm according to EN60715 TH35
Number of read heads Max. 2 read heads per evaluation unit
Connection (plug-in screw terminals/coded) 0.25 - 2.5 mm²
Operating voltage UB(regulated, residual ripple < 5%) 21 24 27 V DC
For the approval according to the following applies Operation only with UL class 2 power supply or equivalent measures
Current consumption IB(with relay energized) 1) - 150 - mA
External fuse (operating voltage UB) 0.25 - 8 A
Safety contacts 2 (relays with internally monitored contacts)
Switching current (relay outputs)
mA
- at switching voltage AC/DC 1…60 V 1 2) - 300
- at switching voltage AC/DC 17…30 V 15 - 6000
- at switching voltage AC 17…230 V 15 - 1500
Switching load according to Class 2 max. 30 V AC/Class 2 max. 60 V DC
120 V AC 3 A / 240 V AC 1.5 A
External fuse (safety circuit) according to EN60269-1 6 AgG or 6 A circuit breaker (characteristic B or C)
Utilization category according to EN60947-5-1 AC-12 60 V 0.3 A / DC-12 60 V 0.3 A
AC-12 30 V 6 A / DC-12 30 V 6 A
AC-15 230 V 2 A / DC-13 24 V 3 A
Rated insulation voltage Ui250 V
Rated impulse withstand voltage Uimp 4 kV
Rated conditional short-circuit current 100 A
Resilience to vibration Acc. to EN60947-5-2
Mechanical operating cycles (relays) 10x106
Switching delay from state change 3)
- 2 actuators activated - - 290 ms
- 1 actuator activated - - 210
Discrepancy time of the operating points of both relays
(with 2 activated actuators) - - 240 ms
Manual start operating mode
- Start button actuating duration 250 - - ms
- Start button response delay - 200 300
Current via feedback loop Y1/Y2 5 8 10 mA
Permissible resistance via feedback loop - - 600 W
Ready delay 4) - 10 12 s
Dwell time 5) 3 - - s
Switching frequency max. 6) - - 0.25 Hz
Repeat accuracy R acc. to ENIEC60947-5-3 ≤10 %
Monitoring outputs (diagnostics DIA, monitoring outputs 01…02,
semiconductor output, p-switching, short circuit-protected)
- Output voltage 0.8xUB- UBV DC
- Max. load - - 20 mA
Start button input S, test input TST
- Input voltage LOW 0 - 2 V DC
HIGH 15 - UB
- Input current HIGH 5 8 10 mA
EMC protection requirements Acc. to EN60947-5-3
Reliability values acc. to ENISO13849-1
as a function of the switching current at 24 V DC ≤0.1 A ≤1 A ≤3 A
Category 4
Performance Level (PL) e
PFHD1.3x10-8 1.5x10-8
Mission time 20 years
Number of switching cycles/year 506 000 100 000 23 000
Diagnostic coverage DC 99 %
MTTFD136 years
1) Without taking into account the load currents on the monitoring outputs.
2) If a switching current > 300 mA in conjunction with a switching voltage > 15 V or an inductive or capacitive load is switched once using the relay outputs, it is no longer possible to reliably switch small
currents (< 15 mA) due to the contact erosion on the gold contacts.
3) Corresponds to the risk time according to EN60947-5-3. This is the maximum OFF time for the safety outputs following removal of the actuator. In case of EMC interference in excess of the require-
ments in accordance with EN60947-5-3, the OFF time can increase to max. 430 ms. After a brief actuation < 0.4 s, the switch-on delay can increase to max. 3 s if this is followed immediately by further
actuation.
4) After the operating voltage is switched on, the relay outputs are switched off and the monitoring outputs are set to LOW potential during the ready delay. For the visual indication of the delay, the green
STATE LED ashes at a frequency of approx. 15Hz.
5) The dwell time is the time that the actuator must be outside the actuating range.
6) In case of monitoring with feedback loop, the actuators must remain outside the actuating range, e.g. with a door open, until the feedback loop is closed.