Operating Instructions
Non-Contact Safety Switch
CES-AR-C01-AH-SA (Unicode)
More than safety.
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Contents
Correct use 3
Possible combinations for CES components 4
Exclusion of liability and warranty 5
General safety instructions 5
Function 6
Changing the approach direction 7
Mounting 8
Electrical connection 9
Safety in case of faults 10
Fuse protection for power supply 10
Requirements for connection cables 11
Maximum cable lengths 11
Connector assignment of safety switch CES-AR 13
Connection of a single CES-AR-C 14
Connection of several CES-AR-C in a switch chain 16
Notes on operation with safe control systems 18
Setup 20
LED indicators 20
Teach-in function for actuator 20
Functional check 22
System status table 23
Technical data 24
Technical data for safety switch CES-AR-C01-AH-SA 24
Technical data for actuator CES-A-BBA 27
Technical data for actuator CES-A-BPA 29
Technical data for actuator CES-A-BRN 31
Ordering information and accessories 33
Inspection and service 33
Service 34
Declaration of conformity 35
2
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Correct use
The Coded Electronic Safety switches series CES are safety devices for monitoring movable safety guards.
In combination with a separating safety guard and the machine control, this safety
component prevents dangerous machine movements from occurring while the
safety guard is open. A stop command is triggered if the safety guard is opened
during the dangerous machine function.
Before safety switches are used, a risk assessment must be performed on the
machine, e.g., in accordance with:
Ì EN ISO 13849-1, Safety of machinery. Safety related parts of control systems.
General principles for design
Ì EN ISO 12100, Safety of machinery – General principles for design – Risk as-
sessment and risk reduction
Ì IEC 62061, Safety of machinery. Functional safety of safety-related electrical,
electronic and programmable electronic control systems.
Correct use includes compliance with the relevant requirements for installation
and operation, for example
Important!
Ì EN ISO 13849-1, Safety of machinery. Safety related parts of control systems.
General principles for design
Ì EN 1088, Safety of machinery. Interlocking devices associated with guards.
Principles for design and selection
Ì EN 60204-1, Safety of machinery. Electrical equipment of machines. General
requirements
Ì EN 60947-5-3, Specification for low-voltage switchgear and controlgear. Con-
trol circuit devices and switching elements. Requirements for proximity devices
with defined behavior under fault conditions
The safety switch must be used only in conjunction with the designated CES actuators from EUCHNER. On the use of different actuators, EUCHNER provides no
warranty for safe function.
Several devices are only allowed to be connected in series using devices intended
for series connection with the CES-AR. Check the operating instructions for the
related device. A combination of other CES devices or devices from other manufacturers is not allowed.
A maximum of 20 safety switches are allowed to be operated in a switch chain.
Ì The user is responsible for the 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.
Ì Correct use requires observing the permissible operating parameters (see
Technical data).
Ì If a product data sheet is included with the product, the information on the
data sheet applies in case of discrepancies with the operating instructions.
Ì In the estimation of the PL for the overall system, a maximum value of
100 years can be assumed for the MTTFd according to the limit value in
EN ISO 13849-1:2008, section 4.5.2. This corresponds to a minimum value
for the PFHd of 2.47x10-8/h.
Ì When up to 11 devices are connected in series, these limit values can be
assumed for the entire switch chain as a subsystem. As a subsystem, this
switch chain achieves PL e.
3
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Important!
CES-AR-C01-AH-SA
Key to symbols
Safety switches
098941
Ì In the case of series connection of more than 11 devices, the PFH
calculated according to one of the stated methods in EN ISO 13849-1:2008,
section 4.5.1.
Ì If the simplified method according to section 6.3 of EN ISO 13849:2008-12
is used for validation, the Performance Level (PL) might be reduced when
more than 11 devices are connected in series.
Ì It is only allowed to use components that are permissible in accordance with
the table below.
Possible combinations for CES components
Actuator
CES-A-BBA
071840
Combination possible
CES-A-BPA
098775
CES-A-BRN
100251
can be
d
Note:
Devices with version number V 1.1.2 or higher can be operated on an AR evaluation unit. Please refer to the operating instructions for the relevant AR evaluation
unit for more information.
4
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or
if the safety instructions are not followed, or if any servicing is not performed as
required, liability will be excluded and the warranty void.
General safety instructions
Safety switches fulfill personal protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safety guard particularly
Ì after any setup work
Ì after the replacement of a CES component
Ì after an extended period without use
Ì after every fault
Independent of these checks, the safe function of the safety guard should be
checked at suitable intervals as part of the maintenance schedule.
Warning!
Caution!
Important!
Danger of fatal injury in the event of incorrect connection or incorrect use.
Ì Safety switches must not be bypassed (bridging of contacts), turned away,
removed or otherwise rendered ineffective.
On this topic pay attention in particular to the measures for reducing the possibility of bypassing from EN 1088:1995+A2:2008, section 5.7.
The device is only allowed to be installed and placed in operation by authorized
personnel
Ì who are familiar with the correct handling of safety components
Ì who are familiar with the applicable EMC regulations
Ì who are familiar with the applicable regulations on health and safety and ac-
cident prevention
Ì who have read and understood the operating instructions.
Risk of damage to equipment as a result of incorrect installation. Safety switches
must not be used as a mechanical end stop.
Ì Fit an additional end stop for the movable part of the safety guard.
Prior to use, read the operating instructions and keep these in a safe place.
Ensure that the operating instructions are always available during mounting,
setup and servicing work. EUCHNER cannot provide any warranty in relation to
the readability of the CD for the storage period required. For this reason you
should archive a printed copy of the operating instructions. You can download
the operating instructions from www.EUCHNER.de.
5
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Function
The device complies with the following safety requirements:
Ì Category 4, PLe according to EN ISO 13849-1
Ì Redundant design of the circuit in the unit with self-monitoring
Ì This means that the safety system still functions even if an internal component
fails
Ì The switch state of the semiconductor outputs is continuously monitored inter-
nally
Ì Short circuit detection at the safety outputs by pulse signals
The following switch-on condition applies to safety outputs OA and OB (see also
System status table and the section Typical system times):
Ì Safety guard closed
Ì Both safety outputs (IA and IB) must be on
The system consists of the following components: coded actuator (transponder)
and switch.
Every EUCHNER actuator supplied has an electronic coding (unique coding) that is
read by the read head. Only if a correct coding is detected does the system accept
the actuator. The code in an actuator cannot be reprogrammed.
The actuator must be assigned to the safety switch by a teach-in process so that
it is detected by the system. This unambiguous assignment ensures a particularly
high level of protection against tampering.
The safety switch is fastened to the fixed part of the safety guard.
The actuator attached to the movable part of the safety guard is moved towards
the read head fitted in the safety switch 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 safety outputs are released.
Due to the combination of dynamic polling of the actuator and the redundant,
diverse design of the safety electronics with the two feedback safety outputs, the
safety switch will enter the safe state with every detectable fault.
When the safety guard is opened, the safety outputs switch off the safety circuit
and the monitoring output (OUT) is switched off. The state of the safety outputs is
monitored internally by two microprocessors.
If faults are detected, the safety circuit is switched off and the DIA LED illuminates.
In case of devices with a DIA monitoring output, the output is switched on.
The safety switch has a redundant circuit design with self-monitoring. This means
that the safety system is still effective even if a component fails.
The system is designed so that failures will not result in the loss of the safety function. The occurrence of failures is detected by cyclic self-monitoring at the latest
on the next demand to close the safety contacts (e.g. on starting).
If the safety door with the actuator should settle over time, the actuator can drift
out of the read head operating distance. The device recognizes this and indicates
that the actuator is in the limit range (function available for V 1.1.2 and higher).
This allows the safety door to be readjusted in time.
6
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Changing the approach direction
Caution!
Risk of damage to equipment as a result of trapped cables.
Ì Make sure that the cables are not trapped or torn off when the approach
direction is changed.
The active face of the read head can be adjusted in 5 directions. It is marked by
the red face.
The plug connector can be realigned in 45° steps to change the direction of the
cable outlet (when using elbow connectors).
1. Remove the top part of the mounting base and push the bottom part of the
mounting base off the read head.
2. Unscrew the screws on the fastening bracket.
3. Undo the read head from the fastening bracket and tilt the read head forward
by 90°.
¨ The active face is now pointing downward.
4. Hold the fastening bracket tight and turn the read head by 180°.
5. Re-tighten the screws for the read head on the fastening bracket. Tightening
torque 0.6 Nm.
6. Turn the read head in 90° steps until the desired approach direction is
reached.
Change the alignment of the plug connector if necessary.
7. Push the read head onto the bottom part of the mounting base and reassemble the mounting base.
7
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Mounting
Important!
Ì From the assured switch-off distance S
, the safety outputs are safely shut
ar
down.
Ì When mounting several safety switches, observe the stipulated minimum
distance to avoid mutual interference.
min. 80mm
Ì If the actuator is installed flush, the switching distance changes as a function
of the installation depth and the safety guard material.
Flush mounting
Actuator
Operating
distance
Surface mounting
Actuator
Operating
distance
Note the following points:
Ì Actuator and safety switch must be easily accessible for inspection and re-
placement.
Ì The switching operation must only be triggered by the specific actuator desig-
nated for this purpose.
Ì Actuator and safety switch must be fitted so that
Ì the front faces are at the minimum switch-on distance 0.8 x S
when the safety guard is closed (see section Operating distances). 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 operating
distance for the related actuator.
Ì when the safety guard is open up to the distance S
tance), a hazard is excluded.
(assured switch-off dis-
ar
or closer
ao
Ì the actuator is positively mounted on the safety guard, e.g. by using the
safety screws included.
Ì they cannot be removed or tampered with using simple means.
Ì Pay attention to the maximum tightening torque for the read head or safety
switch and actuator mountings of 1 Nm. For read heads/actuators made of
PE-HD, the maximum tightening torque is only 0.5 Nm.
8
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Electrical connection
The following connection options are available:
Ì Separate operation
Ì Series connection with Y-distributors from EUCHNER (only with M12 plug con-
nector)
Ì Series connection, e.g. with wiring in the control cabinet.
Ì Operation on an AR evaluation unit
Warning!
In the event of a fault: Loss of the safety function due to incorrect connection.
Ì To ensure safety, both safety outputs (OA and OB) must always be evaluated.
Ì The monitoring output OUT or DIA must not be used as a safety output.
Ì Lay the connection cables with protection to prevent the risk of short cir-
cuits.
Caution!
Risk of damage to equipment or malfunctions as a result of incorrect connection.
Ì Do not use a control system with pulsing or switch off the pulsing function in
your control system. The device generates its own clock signal on the output lines OA/OB. A downstream control system must tolerate these pulses,
which may have a length of up to 1 ms.
The pulses are also output when the safety outputs are switched off.
Depending on the inertia of the connected device (control system, relay,
etc.), this can lead to short switching processes.
Ì The inputs on an evaluation unit connected must be positive-switching, as the
two outputs on the safety switch deliver a level of +24 V in the switched-on
state.
Ì All the electrical connections must either be isolated from the mains supply by
a safety transformer according to IEC 61558-2-6 with limited output voltage in
the event of a fault, or by other equivalent isolation measures (PELV).
Ì For use and operation as per the requirements, a power supply with the
feature "for use in class 2 circuits" must be used. The same requirement applies to the safety outputs.
Alternative solutions must comply with the following requirements:
a) Electrically isolated power supply unit with a max. open-circuit voltage of 30
V/DC and a limited current of max. 8 A.
b) 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.
Ì For use and applications as per the requirements of , a connection cable
listed under the UL category code CYJV2 or CYJV must be used. The connection cables from EUCHNER meet these requirements. The same requirement applies to the safety outputs.
Ì All electrical outputs must have an adequate protective circuit for inductive
loads. The outputs must be protected with a free-wheeling diode for this purpose. RC interference suppression units must not be used.
Ì Power devices which are a powerful source of interference must be installed
in a separate location away from the input and output circuits for signal processing. The cable routing for safety circuits should be as far away as possible from the cables of the power circuits.
9
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Caution!
Ì In order to avoid EMC interference, the physical environmental and operating
conditions at the installation site of the device must comply with the requirements according to the standard EN 60204-1:2006, section 4.4.2 (EMC).
Ì Please pay attention to any interference fields in case of devices such as
frequency converters or induction heating systems. Observe the EMC instructions in the manuals from the respective manufacturer.
Important!
If the device does not appear to function when operating voltage is applied (e.g.
green STATE LED does not flash), the safety switch must be returned unopened
to the manufacturer.
Safety in case of faults
Ì The operating voltage U
is reverse polarity protected.
B
Ì The contacts OA/OB are short circuit proof.
Ì A short circuit between OA and OB is detected by the switch.
Ì A short circuit in the cable can be excluded by laying the cable with protection.
Fuse protection for power supply
The power supply must be provided with fuse protection depending on the number
of switches and current required for the outputs. The following rules apply:
Max. current consumption of an individual switch I
I
= IUB + I
max
= Switch operating current (50 mA)
I
UB
= Monitoring output load current (max. 200 mA)
I
OUT
= Load current of safety outputs OA + OB (2 x max. 400 mA)
I
OA+OB
OUT
+ I
OA+OB
Max. current consumption of a switch chain Σ I
Σ I
max
= I
+ n x (IUB + I
OA+OB
OUT
)
n = Number of connected switches
max
max
10
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Requirements for connection cables
Caution!
Risk of damage to equipment or malfunctions as a result of incorrect connection cables.
Ì Use connection components and connection cables from EUCHNER
Ì On the usage of other connection components, the requirements in the fol-
lowing table apply. EUCHNER provides no warranty for safe function in case
of failure to comply with these requirements.
Observe the following requirements with respect to the connection cables:
Parameter Value Unit
Conductor cross-section 0.34 mm²
R max. 60 W/km
C max. 120 nF/km
L max. 0.65 mH/km
Recommended cable type LIYY 8x or 5x 0.34 mm²
Maximum cable lengths
Switch chains are permitted up to a maximum overall cable length of 200 m taking
into account the voltage drop as a result of the cable resistance (see table below
with example data and case example).
l
=200 m
max
l
2
u
= 24 V -10%
min
l
1
l
n
un = 24 V -20%
SPS
PLC
Max. number of
5 x 0,34 mm
n
switches
5
6
10
i
out
2
CES-AR # n CES-AR # n-1 CES-AR # 1
I
(mA)
out
Possible output current per channel
OA/OB
10 150
25 100
50 80
100 50
200 25
10 120
25 90
50 70
100 50
200 25
10 70
25 60
50 50
100 40
200 25
Max. cable length from the last switch
l1 (m)
to the control system
11
Operating Instructions Safety Switch CES-AR-C01-AH-SA
l
= 140 m
Determining cable lengths using the example table
Example: 6 switches are to be used in series. Cabling with a length of 40 m is
routed from a safety relay in the control cabinet to the last switch (#6). Cables with a
length of 20 m each are connected between the individual CES-AR safety switches.
max
l
= 5 x 20 m
2
Sicherheitsrelais
Safety Relay
l1 = 40 m
i
= min. 75 mA
out
ln = 20 m
un = min. 19,2 V
CES-AR # 6
CES-AR # 5 CES-AR # 4 CES-AR # 3
CES-AR # 2 CES-AR # 1
Figure 1: Circuit example with six CES-AR
A safety relay is connected downstream which consumes 75 mA at each of the
two safety inputs. This operates over the whole temperature range with a voltage
of 19.2 V (corresponds to 24 V -20%).
All the relevant values can now be determined using the example table:
1. Select the corresponding section in the column n (max. number of switches).
Here: 6 switches.
2. In column I
(possible output current per channel OA/OB), find a current
out
greater than or equal to 75 mA. Here: 100 mA.
¨ It is then possible to determine the maximum cable length from the last switch
(#6) to the control system from column l
Result: The desired cable length l
of 40 m is below the permitted value from the
1
table. The overall length of the switch chain l
. Here: a length of 50 m is permitted.
1
of 140 m is less than the maximum
max
value of 200 m.
¨ The planned application is therefore functional in this form.
12
Operating Instructions Safety Switch CES-AR-C01-AH-SA
1
7
6
5
4
3
2
8
8
2
7
6
1
3
4
5
UB
0V
IA
IB
OA
OB
OUT
RST
Connector assignment of safety switch CES-AR
Coding lug
View on the connection side of the safety switch
Figure 2: Connector assignment of safety switch CES-AR
Pin Designation Description Wire color
1 IB Enable input for channel 2 white
2 UB Power supply, DC 24 V brown
3 OA Safety output, channel 1 green
4 OB Safety output, channel 2 yellow
5 OUT/DIA Monitoring output gray
6 IA Enable input for channel 1 pink
7 0V Ground, DC 0 V blue
8 RST Reset input red
13
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Connection of a single CES-AR-C
If a single CES-AR-C is used, connect the switch as shown in Figure 3. The OUT
output can also be connected here to a control system as a monitoring output.
The switch can be reset via the RST input. To do this, a voltage of 24 V is applied
to the RST input for at least 3 seconds. The RST input must be connected to 0 V
if it is not used.
Important!
The subsystem CES-AR complies with PL e in accordance with EN 13849-1. To
integrate the subsystem in a category 3 or 4 structure, it is necessary to monitor
the downstream load (the feedback loop must be monitored).
These examples show only an excerpt that is relevant for connection of the CES
system. The example illustrated here does not show complete system planning.
The user is responsible for safe integration in the overall system.
DC 24 V
A1
IB1
UB2
OA3
OB4
IA6
0V7
OUT5
RST8
-K1
A2
M12 plug-connector
(8-pin)
CES-AR-C #1
GND
Figure 3: Connection example for a single CES-AR-C
-K2
13
14
A1
13
A2
14
M
-M1
14
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Warning!
In the event of a fault: Loss of the safety function due to incorrect connection.
Ì To ensure safety, both safety outputs (OA and OB) must always be evaluated.
Single-channel use of the safety outputs leads to a loss of the category in
accordance with EN ISO 13849-1.
DC 24 V
A1
IB1
UB2
OA3
IA6
OB4
0V7
OUT5
RST8
-K1
A2
M12 plug-connector
(8-pin)
CES-AR #1
GND
Figure 4: Example of incorrect connection.
A1
-K2
A2
13
14
M M
-M1 -M2
13
14
15
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Connection of several CES-AR-C in a switch chain
Important!
Ì An AR switch chain may contain a maximum of 20 safety switches.
Ì In the estimation of the PL for the overall system, a maximum value of
100 years can be assumed for the MTTFd according to the limit value in
EN ISO 13849-1:2008, section 4.5.2. This corresponds to a minimum value
for the PFH
Ì When up to 11 devices are connected in series, these limit values can be
assumed for the entire switch chain as a subsystem. As a subsystem, this
switch chain achieves PL e.
Ì In the case of series connection of more than 11 devices, the PFH
calculated according to one of the stated methods in EN ISO 13849-1:2008,
section 4.5.1.
Ì If the simplified method according to section 6.3 of EN ISO 13849:2008-12
is used for validation, the Performance Level (PL) might be reduced when
more than 11 devices are connected in series.
The series connection is shown here based on the example of the version with plug
connectors M12. The switches are connected one behind the other with the aid
of pre-assembled connection cables and Y-distributors. If a safety door is opened
or if a fault occurs on one of the switches, the system shuts down the machine. A
higher level control system cannot, however, detect which safety door is open or
on which switch a fault has occurred with this connection technology. A special AR
evaluation unit is required for this purpose (see section Information on operation
on an AR evaluation unit).
of 2.47x10-8/h.
d
can be
d
The series connection can also be realized via additional terminals in a control
cabinet.
The safety outputs are permanently assigned to the respective safety inputs of the
downstream switch. OA must be connected to IA and OB to IB. If the connections
are interchanged (e.g. OA to IB), the unit will switch to fault state).
Always use input RST in series connections. All switches in a chain can be reset at
the same time with this reset input. To do this, a voltage of 24 V must be applied
to the RST input for at least 3 seconds. If input RST is not used in your application,
it should be connected to 0 V.
Note the following on this aspect:
Ì A common signal must be used for all switches in the chain. This can be a
changeover switch or the output of a control system. A button is not suitable
because Reset must always be connected to GND during operation (see switch
S1 in Figure 5).
Ì Reset must always be performed simultaneously for all switches of the chain.
Information on operation on an AR evaluation unit
Devices with version number V 1.1.2 or higher can be operated on an AR evaluation unit. Please refer to the operating instructions for the relevant AR evaluation
unit for more information.
16
Operating Instructions Safety Switch CES-AR-C01-AH-SA
V
0V
24
12
-S1
11 14
OB
OA
OUT
0V
UB
RST
IA
IB
4
3
Safety Outputs
5
7
2
8
6
1
Safety Inputs
Eval Unit
Read Head
Y-distributor
RST
5
RST
UB
1
135
UBOA0V
IA0VIB
OB
2
4
3
OB
OA
OUT
Y-distributor Y-distributor
0V
UB
RST
IA
IB
1 6 2 78 5 3 4
2
4
OB
Y-distributor
OA
OUT
0V
UB
RST
IA
IB
OB
OA
OUT
0V
UB
RST
IA
IB
4
3
Safety Outputs
5
7
2
8
6
1
SafetyInputsSafety Inputs
4
3
Safety Outputs
5
7
2
8
6
1
Read Head
CES CESCES
Read Head
Terminating plug
2
4
1UB
Terminating plug
IA
IB
Figure 5: Connection example for series connection with reset and changeover switch.
17
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Notes on operation with safe control systems
Please observe the following requirements for connection to safe control systems:
Ì Use a common power supply for the control system and the connected safety
switches.
Ì A clocked power supply must not be used for UB. Tap the supply voltage
directly from the power supply unit. If the supply voltage is connected to a
terminal of a safe control system, this output must provide sufficient electrical
current.
Ì Always connect inputs IA and IB directly to a power supply unit or to outputs
OA and OB of another EUCHNER AR device (series connection). Clocked signals must not be present at inputs IA and IB.
Ì Outputs OA and OB can be connected to the safe inputs of a control system.
Prerequisite: The input must be suitable for clocked safety signals (OSSD signals, e.g. from light curtains). The control system must tolerate clock pulses
on the input signals. This normally can be set up by parameter assignment in
the control system. Observe the notes of the control system manufacturer. For
the pulse duration of your safety switch, please refer to the section Typical
system times on page 25.
A detailed example of connection and setting the parameters of the control system is
available for many devices at www.euchner.de, in the area Download ¨ Applications
¨ CES. The features of the respective device are dealt with there in greater detail.
18
Operating Instructions Safety Switch CES-AR-C01-AH-SA
24V0V
M
3
DC24V
2
PWR
Supply of
the control
DI4 DI0DO..M DO..P DO
4/8 F-DI4 F-DO
Digital
Output
-X1-X1
ET200
0V(UCM)
X2:1
J
X2:5
UCM
X2:4
LED1
X2:3
OB
4
OA
3
Safety Output
OUT
5
0V
7
UB
2
RST
8
IA
6
Safety Inputs
IB
1
OB
4
OA
3
Safety Output
OUT
5
0V
7
UB
Y-distributor Y-distributor
2
RST
8
IA
6
IB
SafetyInputsSafetyInputs
1
CET
CES
Read Head
OB
4
OA
3
Safety Output
OUT
Y-distributor
Terminating plug
5
0V
7
UB
2
RST
8
IA
6
IB
1
CES
Read Head
Figure 6: Connection example for mixed series connection (2 x CES and 1 x
CET) on ET200
19
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Setup
LED indicators
LED Color State Significance
Important!
illuminated
STATE
DIA
green
red
flashing
illuminated
Teach-in function for actuator
The actuator must be allocated to the safety switch using a teach-in function before
the system forms a functional unit.
During a teach-in operation, the safety outputs and the monitoring output OUT are
switched off, i.e. the system is in the safe state.
Normal operation
- Teach-in operation or Power Up
- Actuator in limit range (V. 1.1.2 or higher)
(refer to the status table for further signal functions)
- Internal electronics fault
- Fault at the inputs/outputs
Ì The safety switch disables the code of the previous actuator if teach-in is
carried out for a new actuator. Teach-in is not possible again immediately for
this actuator if a new teach-in operation is carried out. The disabled code is
released again in the safety switch only after a third code has been taught.
Ì The safety switch can only be operated with the last actuator taught.
Ì If the switch detects the actuator that was most recently taught when in
teach-in standby state, this state is ended immediately and the switch changes to normal state.
Ì The actuator being taught is not activated if it is within the operating dis-
tance for less than 60 s.
Actuator teach-in
1. Apply operating voltage to the safety switch.
¨ The green LED flashes quickly (approx. 10 Hz)
A self-test is performed during this time (approx. 8 s). After this, the LED
flashes cyclically three times and signals that it is in standby state for teachin.
Standby state for teach-in remains active for approx. 3 minutes.
2. Move new actuator to the read head (observe distance < S
¨ Teach-in operation starts, green LED flashes (approx. 1 Hz). During teach-in,
the safety switch checks whether the actuator is a disabled actuator. If this is
not the case, the teach-in operation is completed after approx. 60 seconds,
the green LED goes out. The new code has been saved, the old code disabled.
).
ao
3. To activate the new actuator code from the teach-in operation in the safety
switch, the operating voltage to the safety switch must then be switched off
for min. 3 seconds.
20
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Teach-in function for series connection
It is recommended not to teach in the actuators in the series connection but to
teach them in one by one instead. Teach-in in a series connection works analogously
to individual operation in principle. All switches in the chain can be taught in at the
same time. The prerequisite is that the switch chain functions without problems
and the following steps are followed. Further steps might have to be observed
for mixed switch chains (e.g. for chains with CES and safety switches with guard
locking). Observe the operating instructions for the other devices in the chain for
this purpose.
Proceed as follows:
1. Install the switches and actuators and connect them completely (see Figure
5 or Figure 6, for example)
2. Close all safety doors in the chain.
3. Switch on the power supply.
¨ The green LED STATE flashes at approx. 1 Hz on the safety switches and the
associated actuators are taught in. This happens for approx. 1 minute. Do not
switch off during this time and do not actuate reset. The teach-in operation has
ended when all LEDs on the safety switches are off.
4. Actuate the reset for at least 3 s (24 V on RST).
¨ The system restarts and then functions in normal operation.
Replacing and teaching-in device
Work on the wiring (e.g. during device replacement) should generally be performed
in a de-energized state. On certain systems, it is nevertheless necessary to perform
this work and subsequent teach-in during ongoing operation.
Input RST must be connected as shown in Figure 5 to permit this.
Proceed as follows:
1. Open the safety door on which the switch or actuator is to be replaced.
2. Install the new switch or actuator and connect it completely.
3. Close all safety doors in the chain.
4. Actuate the reset for at least 3 s (24 V on RST).
¨ On the safety switch that is positioned at a new actuator, the green LED flashes
at approx. 1 Hz and the actuator is taught-in. This takes approx. 1 minute – do
not switch off during this time and do not actuate reset. The teach-in operation
has ended when all LEDs on the device are off.
5. Actuate the reset for at least 3 s (24 V on RST).
¨ The system restarts and then continues to function in normal operation.
21
Operating Instructions Safety Switch CES-AR-C01-AH-SA
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.
Ì Before carrying out the functional check, make sure that there are no per-
sons in the danger area.
Ì Observe the valid accident prevention regulations.
1. Switch on operating voltage.
Ì The safety switch carries out a self-test.
The green LED STATE flashes for 8 s with 10 Hz.
The STATE LED then flashes at regular intervals.
2. Close all safety guards.
Ì The machine must not start automatically.
Ì The green STATE LED illuminates continuously.
3. Enable operation in the control system.
4. Open the safety guard.
Ì The machine must switch off and it must not be possible to start it as long as
the safety guard is open.
Ì The green LED STATE flashes at regular intervals.
Repeat steps 2-4 for each safety guard.
22
Operating Instructions Safety Switch CES-AR-C01-AH-SA
System status table
LED indicator,
output
Operating mode
Self-test
Normal operation
Teach-in standby
Setup
Fault display
Actuator/door posi-
tion
X off
closed on
closed on
closed off
open off
open off
closed off
X off
X off
X off
X off
Safety outputs OA
and OB
STATE (green)
10 Hz
(8 s)
flashes
quickly
2 Hz
1 x in-
verse
1 x Normal operation, door open
3 x Door open, unit is ready for teach-in for another actuator (only short time after power-up)
1 Hz Teach-in operation
2 x Input fault (e.g. missing test pulses, illogical switch state from previous switch in the switch chain)
4 x Output error (e.g. short circuits, loss of switching ability)
5 x Internal fault (e.g. component faulty, data error)
State
DIA (red)
Self-test after power up
Normal operation, door closed
Normal operation, door closed, actuator in limit range ¨ Re-adjust door (V. 1.1.2 or higher)
Normal operation, door closed, preceding device in the switch chain signals "door open" (only with
series connection)
Positive acknowledgment after completion of teach-in operation
Key to symbols
X off X X Internal fault with door fault
LED not illuminated
LED illuminated
10 Hz (8 s)
3 x
X Any state
LED flashes for 8 seconds at 10 Hz
LED flashes three times, and this is then repeated
After the cause has been remedied, faults can generally be reset by opening and
closing the door. If the fault is still displayed afterward, use the reset function or
briefly interrupt the power supply. Please contact the manufacturer if the fault could
not be reset after restarting.
Important!
If you do not find the displayed device status in the System status table, this indicates an internal device fault. In this case, you should contact the manufacturer.
23
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Technical data
Note:
If a product data sheet is included with the product, the information on the data
sheet applies in case of discrepancies with the operating instructions.
Technical data for safety switch CES-AR-C01-AH-SA
Parameter Value Unit
min. typ. max.
Housing material PBT V0 GF30
Dimensions According to EN 60947-5-2
Weight 0.4 kg
Ambient temperature at U
Storage temperature - 25 - + 70
Degree of protection IP67
Safety class III
Degree of contamination 3
Installation position Any
Connection M12 plug connector, 8-pin
Operating voltage U
ity protected, regulated, residual
ripple < 5%)
For the approval according to
the following applies
Current consumption 50 mA
Switching load according to
External fuse (operating voltage) 0.25 - 8 A
Safety outputs OA/OB Semiconductor outputs, p-switching, short circuit-proof
- Output voltage U(OA)/U(OB)
HIGH
HIGH
LOW
Switching current per safety output 1 - 400 mA
Utilization category
according to EN IEC 60947-5-2
Off-state current I
Monitoring output OUT
- Output voltage 0.8 x U
- Max. load - - 200 mA
Rated insulation voltage U
Rated impulse withstand voltage U
Resilience to vibration
Switching frequency - - 1 Hz
Repeat accuracy R ≤ 10 %
EMC protection requirements In accordance with EN IEC 60947-5-3 and EN IEC 61326-3-1
Reliability values acc. to EN ISO 13849-1
Category 4
Performance Level PL e
PFH
d
Mission time 20 years
1) Values at a switching current of 50 mA without taking into account the cable length.
2) Tested by employers’ liability insurance association up to 75 V.
3) Applying the limit value from EN ISO 13849-1:2008, section 4.5.2 (MTTF
association certifies a PFH
= DC 24 V - 20 - + 55
B
(reverse polar-
B
Operation only with UL Class 2 power supply, or equivalent
24 ± 15% (PELV) V DC
measures
DC 24 V, class 2
1)
U(OA)
U(OB)
-1.5 - U
U
B
U(OA)/U(OB) 0 1
DC-13 24 V 400 mA
Caution: outputs must be protected with a free-wheeling diode in
case of inductive loads.
r
1)
i
imp
p-switching, short circuit-proof
B
- - 300
- - 1.5 kV
≤ 0.25 mA
- U
In acc. with EN IEC 60947-5-2
-9
of max. 2.47 x 10-8.
d
2.1 x 10
/ h
= max. 100 years), the employers’ liability insurance
d
°C
B
B
2)
3)
V DC
V DC
V
24
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Typical system times
The specified times are maximum values for AR switch chains with 20 devices.
Individual devices have shorter system times.
Ready delay: After switching on, the device carries out a self-test for 8 s. The
system is ready for operation only after this time.
Switch-on time of safety outputs: The max. reaction time from the moment
when the actuator is at the operating distance (safety door closed) to the moment
when the safety outputs switch on T
Simultaneity monitoring, safety inputs IA/IB: If the safety inputs have different switching states for longer than 150 ms, the safety outputs OA/OB will be
switched off.
Risk time according to EN 60947-5-3: If an actuator moves outside the operating distance, the safety outputs OA and OB are deactivated after a maximum
of 360 ms.
Difference time: The safety outputs OA and OB switch with a slight time offset.
They have the same signal state at the latest after a difference time of 10 ms.
Clock pulses at the safety outputs: The device generates its own clock signal
on the output lines OA/OB. A downstream control system must tolerate these
pulses, which may have a length of up to 1 ms.
is 400 ms.
on
This can usually be set up in the control systems by parameter assignment. If
parameter assignment is not possible for your control system or if shorter clock
pulses are required, please contact our support organization.
The pulses are also output when the safety outputs are switched off.
25
Operating Instructions Safety Switch CES-AR-C01-AH-SA
34
30
max. 45
4
85
3
12
Dimension drawings and connector assignments
Bridging plug 097645
4-pin, plug
(figure similar)
Safety switch CES-AR...
20,5
13
7
M12x1
Y-distributor
with connection cable
111696 or 112395
3
2
1
Ø5,5
Socket
485
56,5
Connector assignment for
safety switch CES-AR
(8-pin plug)
and
Y-distributor (8-pin socket)
40
40,5
LEDs
47
Pin Function
1 IB
2 U
B
3 OA
4 OB
5 OUT
6 IA
7 0 V
8 RST
Y-distributor
097627
Socket
6
15,1
7
( )
45°
6
7
M12x1
15 15
41
M12x1
Ø 14,5
Plug Socket
2
3
5
4
1
Pin Function
1 U
B
2 OA
3 0 V
4 OB
5 RST
33
A
B
M12x1
15
2
Pin Function
1 U
2 IA
3 0 V
4 IB
5 RST
M12x1
1
45
Length l
44
3
5
4
Order No.
Length
l [mm]
111696 200
112395 1,000
B
Mx1
12
097627
Mx1
12
Ø 14,6
2
2
1
3
5
4
Pin Function
1 U
2 IA
3 0 V
4 IB
5 RST
3
Plug Socket
5
4
1
20,5
35,1
Pin Function
1 U
B
2 OA
3 0 V
4 OB
5 RST
B
26
Operating Instructions Safety Switch CES-AR-C01-AH-SA
42
12
Technical data for actuator CES-A-BBA
Parameter Value Unit
min. typ. max.
Housing material Fortron, reinforced thermoplastic, fully encapsulated
Dimensions 42 x 25 x 12 mm
Weight 0.02 kg
Ambient temperature - 25 - + 70 °C
Degree of protection
acc. to EN IEC 60529
Installation position Active face opposite read head
Power supply Inductive via read head
Dimension drawing
IP67/IP69K
CES-A-B 071840
±0,1
32
25
Active face
ø4,5
4,6
ø8
Active face
27
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Switching distances
Operating distance for center offset m = 0
(only in combination with CES-A-BBA actuator)
Parameter Value Unit
min. typ. max.
Switch-on distance - 18 -
1)
Assured switch-on distance s
Switching hysteresis
Assured switch-off distance s
1) The values apply for surface installation of the actuator.
ao
1)
ar
Typical operating distance
(only in combination with CES-A-BBA actuator)
-30
X
15 - -
1 3 -
- - 45
Y
30
25
20
15
10
5
5
10
5
10
15
20
25
15
20
25
mm
30
Z
-30
For a side approach direction for the actuator and safety switch, a minimum distance of s = 4 mm
must be maintained so that the operating distance of the side lobes is not entered.
Figure 7: Typical operating distance
28
Operating Instructions Safety Switch CES-AR-C01-AH-SA
10
Technical data for actuator CES-A-BPA
Parameter Value Unit
min. typ. max.
Housing material PBT
Dimensions 40 x 40 x 10 mm
Weight 0.025 kg
Ambient temperature - 25 - + 70 °C
Degree of protection
acc. to EN IEC 60529
Installation position Active face opposite read head
Power supply Inductive via read head
Dimension drawing
0
- 0,25
40
CES-A-BPA-098775
IP67/IP69K
4
Ø 5,2
±0,1
30
IP67
2 safety screws M5 x 10 are
supplied
CD
Active face
Active face
29
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Switching distances
Operating distance for center offset m = 0
(only in conjunction with actuator CES-A-BPA on surface mounting)
Parameter Value Unit
min. typ. max.
Switch-on distance - 22
Assured switch-on distance s
Switching hysteresis 1 2 -
Assured switch-off distance s
1) On surface mounting on aluminum; in a non-metallic environment the typical switching distance increases to 30 mm.
ao
ar
18 - -
- - 58
Typical operating distance
(only in conjunction with actuator CES-A-BPA on surface mounting)
Y
45
40
35
-45
20
25
30
35
40
45
X
30
25
20
15
10
5
5
5
10
15
1)
10
15
20
25
30
-
mm
35
40
45
Z
-45
For a side approach direction for the actuator and read head, a minimum distance of s = 6 mm
must be maintained so that the operating distance of the side lobes is not entered.
Figure 8: Typical operating distance
30
Operating Instructions Safety Switch CES-AR-C01-AH-SA
40
Technical data for actuator CES-A-BRN
Parameter Value Unit
min. typ. max.
Housing material PPS
Dimensions 80 x 40 x 15 mm
Weight 0.06 kg
Ambient temperature - 25 - + 70 °C
Degree of protection
acc. to EN IEC 60529
Installation position Active face opposite read head
Power supply Inductive via read head
Dimension drawing
IP67
10,3
5,5
1711
17 11
Active face
15
8,5
80
Active face
31
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Switching distances
Operating distance for center offset m = 0
(only in combination with actuator CES-A-BRN)
Parameter Value Unit
min. typ. max.
Switch-on distance - 27 -
Assured switch-on distance s
Switching hysteresis
Assured switch-off distance s
1) The values apply for surface installation of the actuator on steel.
1)
ao
1)
ar
Typical operating distance
(only in conjunction with actuator CES-A-BRN on surface mounting on steel)
50
20 - -
- 3 -
- - 75
Y
65
60
55
50
45
40
35
30
25
20
15
10
5
5
5
10
10
15
20
25
30
35
X
15
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
20
25
mm
30
35
40
45
50
Z
For a side approach direction for the actuator and read head, a minimum distance of s = 6 mm
must be maintained so that the operating distance of the side lobes is not entered.
Figure 9: Typical operating distance
32
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Ordering information and accessories
Designation Version Order
CES-AR-C01-AH-SA unicode 098941
Bridging plug M12, 4-pin, plug 097645
Y-distributor M12, 1x8-pin, 2x5-pin 097627
Y-distributor with connecting cable M12, 1x8-pin, 2x5-pin, length 200 mm 111696
Tip!
You will find further accessories, in particular for series connection, in the current
Non-Contact Safety System CES catalog at www.euchner.de.
Inspection and service
Warning!
No.
M12, 1x8-pin, 2x5-pin, length 1,000 mm 112395
Connection cable PVC 8-core,
flying lead
Actuator BBA 42 mm x 25 mm 071840
Actuator BPA 40 mm x 40 mm 098775
Actuator BRN 80 mm x 40 mm 100251
M12, 8-pin, 5 m 100177
M12, 8-pin, 10 m 100178
M12, 8-pin, 20 m 100179
Loss of the safety function because of damage to the system.
In case of damage, the related safety component must be replaced.
Only accessories or spare parts that can be ordered from EUCHNER may be
replaced.
Note:
Regular inspection of the following is necessary to ensure trouble-free long-term
operation:
Ì Check the switching function (see section Functional check)
Ì Check the secure fastening of the devices and the connections
Ì Check for soiling
No servicing is required; repairs to the device are only allowed to be made by the
manufacturer.
The year of manufacture can be seen in the lower right corner of the rating plate.
The current version number in the format (V X.X.X) can also be found on the device.
The safety door must be re-adjusted when the device indicates that the actuator
is in the limit range.
33
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Service
If service support is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
D-70771 Leinfelden-Echterdingen
Service telephone:
+49 711 7597-500
E-mail:
info@euchner.de
Internet:
www.euchner.de
34
Operating Instructions Safety Switch CES-AR-C01-AH-SA
Declaration of conformity
35
Operating Instructions Safety Switch CES-AR-C01-AH-SA
36
Operating Instructions Safety Switch CES-AR-C01-AH-SA
37
More than safety.
Euchner GmbH + Co. KG
Kohlhammerstraße 16
D-70771 Leinfelden-Echterdingen
info@euchner.de
www.euchner.de
Edition:
098039-16-10/13
Title:
Operating Instructions Safety Switch CES-AR-C01-AH-SA
(translation of the original operating instructions)
Copyright:
© EUCHNER GmbH + Co. KG, 10/2013
Subject to technical modifications; no responsibility
is accepted for the accuracy of this information.
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