EUCHNER CES-AH-C03-AH-SM User Manual

Operating Instructions
Non-Contact Safety Switch
CES-AH-C03-AH-SM (Unicode)
More than safety.
Operating Instructions Safety Switch CES-AH-C03-AH-SM
Contents
Correct use 3
Possible combinations for CES components 4
Exclusion of liability and warranty 4
General safety instructions 5
System description 6
Montage 7
Electrical connection 8
General notes 8 Test pulses, pulsing and power control 8 Behavior in case of faults 8 Automatic restart and start button 9 Safety in case of faults 9 Fuse protection for power supply 9 Voltage drop on cable and switch 10 Connection cables and plug connectors 11 Connector assignment 11 Connection example 12
Setup 13
LED indicators 13 Teach-in function for actuator 13 Functional check 14
System status table 15
Technical data 16
Technical data for safety switch CES-AH-C03-AH-SM 16 Technical data for actuator CES-A-BBA/CES-A-BCA 19 Technical data for actuator CES-A-BPA 21 Technical data for actuator CES-A-BRN 23
Ordering information and accessories 25
Inspection and service 25
Service 25
Declaration of conformity 26
2
Operating Instructions Safety Switch CES-AH-C03-AH-SM
The Coded Electronic Safety switches series CES are safety devices for monitor­ing movable safety guards.
In combination with a safety guard, this safety component prevents dangerous machine movements from being performed for as long as the safety guard is opened. 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 14121-1, Safety of machinery. Risk assessment. Principles Ì IEC 62061, Safety of machinery. Functional safety of safety-related electrical,
electronic and programmable electronic control systems.
Devices in the system family CES-AH... have special safety outputs that are suitable for the direct switching of large loads. In appropriate applications it is therefore not necessary to connect power relays or contactors in between.
Important!
The device interrupts the supply of power to the load, if, e.g., the safety guard is open.
Correct use includes compliance with the relevant requirements for installation and operation, for example
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 behaviour 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.
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 It is only allowed to use components that are permissible in accordance with
the table below.
3
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Possible combinations for CES components

Actuator
Safety Switch
CES-A-BBA
Key to symbols
CES-AH-C03-...
071 840
20 20 22 27
15 Combination possible, typ. switch-on distance 15 mm
Combination possible, guard locking for process protection
Combination possible, guard locking for personal protection
Combination not permissible
CES-A-BCA
088 786
CES-A-BPA
098 775
CES-A-BRN-100251
100 251

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.
4
Operating Instructions Safety Switch CES-AH-C03-AH-SM

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!
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.
Important!
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.
Prior to use, read the operating instructions and keep it in a safe place. Ensure the operating instructions is always available during mounting, setup and servic­ing. 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. If you should lose the operating instructions, you can download this documents from www. EUCHNER.de.
5
Operating Instructions Safety Switch CES-AH-C03-AH-SM

System description

The safety switch CES-AH-C03-AH-SM complies with the following safety require­ments:
Ì Category 3 according to DIN EN ISO 13849-1 Ì Proximity device with self-monitoring type PDF-S according to EN 60947-5-3. 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
The CES non-contact safety switch consists of three components: coded actuator, evaluation unit and read head.
The evaluation unit is integrated into a housing with the read head. Each actuator possesses a unique electronic coding and so is a unique element in
the system used. The code in an actuator cannot be reprogrammed. The 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 with integrated evaluation unit and read head is fastened to the fixed part of the safety guard.
Within the device, the operation of the two safety outputs is dual-channel. 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 inductive read head and data can be transferred.
The bit pattern read is compared with the code saved in the safety switch, if the data match the safety outputs are enabled.
Due to the combination of dynamic polling of the actuator and the redundant, diverse design of the safety electronics with the two feedback switching elements for each safety output, the safety switch will enter the safe state with every detectable fault.
The safety outputs shut down the safety circuits if the safety guard is opened. The state of the safety outputs is monitored internally by two microprocessors.
For the safety outputs to switch on, there must be a voltage of U input. This voltage can be supplied either using a jumper (automatic start) or using a start button.
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.
on the START
B
The system is designed so that a failure 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).
6
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Montage

Caution!
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.
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 dis-
tance 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
Surface maounting
Operating
Actuator
distance
Actuator
Operating
distance
Note the following points:
Ì Actuator and safety switch must be easily accessible for inspection and re-
placement.
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). For a side approach direction for the actuator a minimum distance must be maintained so that the operating distance of the side lobes is not entered (see operating distance for the 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.
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Operating Instructions Safety Switch CES-AH-C03-AH-SM

Electrical connection

General notes

Caution!
Risk of damage to equipment or malfunctions as a result of incorrect connection.
Ì To avoid faults, the cable must be laid with protection. Ì The power for the operating voltage and for the inputs +LA and +LB must be
provided from a common power supply.
Ì All the electrical connections must either be isolated from the mains supply
by a safety transformer according IEC 61558-2-6 with limited output voltage in the event of a fault, or by other equivalent isolation measures.
Ì With inductive loads there can be voltage spikes of up to -50 V lasting sev-
eral milliseconds on switching off the outputs.
Ì To prevent overvoltages on the inputs and outputs for the safety circuits,
inductive loads must be connected with free-wheeling diodes (see Connec­tion examples page 12.
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.
Important!
Attention!
Important!

Test pulses, pulsing and power control

Ì In operation the device regularly switches off the safety outputs for approx.
6 ms to check the safe switching function. The loads connected must toler­ate this behavior.
Ì A load connected is controlled using the safety paths +LA/LA and +LB/LB.
The control voltage can be pulsed for power control.
Ì Do not use a control system with pulsing to test the output cables or switch
off the pulsing function in your control system.

Behavior in case of faults

Ì In the event of a fault in the safety switch, the safety circuit is switched off
and the DIA LED illuminates red.
Ì After approx. 5 s. the device performs a re-start.
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.
8
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Automatic restart and start button

Pay attention to the notes for the following applications: Automatic start, with a jumper (+24 V are continuously present at the START
input)
¨ The device restarts automatically after faults.
Manual start (start via a start button)
¨ Prior to each restart the start button must be pressed
Ì A sticking start button (fault due to welding etc.) is not detected by the device
and results in an automatic restart.
Attention!
Danger due to automatic start / restart.
An automatic start / restart can occur:
Ì On closing the safety guard Ì On switching on the power supply Ì On automatic restart after the detection of a fault
Ì Check carefully which start mode is suitable for your application. Ì Check whether additional measures are necessary to prevent an automatic
restart.

Safety in case of faults

Ì The operating voltage U Ì The contacts +LA/LA and +LB/LB are short circuit-proof and protected against
reverse polarization.
Ì To prevent switching on of the load connected in the case of a short circuit
between LA or LB and the operating voltage UB, the cables must be laid rigidly and with protection.
is reverse polarity protected.
B

Fuse protection for power supply

The power supply must be provided with fuse protection depending on the current required for the outputs. If both outputs (LA and LB) are used, protect with max. 10 A fuse.
9
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Voltage drop on cable and switch

If a load is applied to the outputs, voltage drops will occur on the supply cables and on the switch.
The voltage drops are to be taken into account during the calculation of the power available in the load connected.
Parameter Value Unit
Maximum resistance of an output path 250 mW Resistance for further connection cable (e.g. 7 x 1 mm², supply
and return wire)
Other connection resistances are to be taken into account as necessary.
Calculation example
Ì
10 m cable from the switch to the supply / load
Ì Supply voltage on the 24 V connection Ì Load on channel A: 1 A
25 mW/m
Ì Load on channel B: 4 A
For channel A:
Ì Voltage drop on the switch
= R x I = 250 mW x 1 A = 250 mV
D U
1
Ì Voltage drop on the cable
= Rl x l x I = 25 mW/m x 10 m x 1 A = 250 mV
D U
2
Ì Voltage at the load
- D U1 - D U2 = 24 V - 0.25 V - 0.25 V = 23.5 V
U = U
B
For channel B:
Ì Voltage drop on the switch
= R x I = 250 mW x 4 A = 1 V
D U
1
Ì Voltage drop on the cable
= Rl x l x I = 25 mW/m x 10 m x 4 A = 1 V
D U
2
Ì Voltage at the load
- D U1 - D U2 = 24 V - 1 V - 1 V = 22 V
U = U
B
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Operating Instructions Safety Switch CES-AH-C03-AH-SM

Connection cables and plug connectors

Caution!
Risk of damage to equipment or malfunctions as a result of incorrect connec­tion cables.
Ì Use EUCHNER connectors. Ì If other connection components are used, the following recommendations
apply. EUCHNER provides no warranty for safe function in case of failure to comply with these requirements.
Ì The maximum cable length should not exceed 50 m.
Recommended connection cable: e.g. LiYY 7 x 1mm², Ölflex classic 400P 7 x 0.75
Mating connector for the evaluation unit: EUCHNER M23, 9-pin, cable cross-section max. 1 mm² order no. 106 597
Important!
Alternative e.g. Coninvers order no. RC-09S1N121600, cable cross-section max. 1 mm²
It is imperative you use the original tools from the connector manufacturer for assembly and follow the assembly instructions from the connector manufacturer.

Connector assignment

8
7
6
5
9
View of connection side
1
2
3
4
Figure 1: Connector assignment safety switch CES-AH-C03-AH-SM
Pin Designation Description
1 NC Not used * 2 Start Start input 3 LA Safety output, channel 1 4 +LA Input for channel 1 5 +LB Input for channel 2 6 LB Safety output, channel 2 7 UB Power supply, DC 24 V 8 0 V Ground, DC 0 V 9 NC Not used *
* The unused connection pins are not allowed to be connected by the user!
11
Operating Instructions Safety Switch CES-AH-C03-AH-SM
GND

Connection example

Within the device, the shutdown of the two outputs LA and LB is dual-channel. As such, each of the outputs represents a separate safety output.
U
B
START
Attention!
UB
7
Internal
logic
0V
8
1) Load, e.g. valve coil, DC motor, Ohmic load etc.
2) In case of inductive loads, it is imperative free-wheeling diodes are used to protect the outputs on the safety switch.
+LB5+LA4START
2
NC1NC
9
LA
LB
3
Feedback
6
loop
1)2) 1)2)
Feedback loop
Figure 2: Connection example with start button and feedback loop
Ì A short circuit between the cables on the safety outputs LA and LB and an-
other cable must be prevented.
Ì In certain circumstances, a failure exclusion as per EN 13849-1, section 7.3
can be applied, see also EN 13849-2, section D.5.2.
Ì The CES-AH represents a subsystem as per EN 13849-1 and complies with
PL d. To integrate the switch in a category 3 structure, it is necessary to monitor the downstream load (the feedback loop must be monitored).
Ì This example shows only an excerpt that is relevant for connection of the
CES-AH system. The example illustrated here does not show complete system planning. The user is responsible for safe integration in the overall system.
12
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Setup

LED indicators

LED Color State Significance
STATE
illumi­nated
green
flashing
Normal operation
Teach-in operation or Power Up (for further signal function see status table)
Important!
DIA
red
illumi­nated
- Internal electronics fault
- Fault at the inputs/outputs

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 are in high-resistance state, i.e. the system is in the safe state.
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 process is carried out. The disabled code is deleted 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 an actuator which has already been 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.
Carrying out teach-in for a new actuator
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. 3 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.
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.
).
ao
13
Operating Instructions Safety Switch CES-AH-C03-AH-SM

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 STATE LED flashes for 3 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.
14
Operating Instructions Safety Switch CES-AH-C03-AH-SM

System status table

LED
indicator output
Operating mode
Self-test
Normal operation
Teach-in standby
Setup
Fault display
Actuator/
door position
X off
closed on
open off
open off
closed off
X off
X off
X off
X off
X off
Safety outputs
LA and LB
State
STATE (green)
10 Hz
(3 s)
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 Overload (e.g. short circuit on a safety output)
3 x Over-temperature
4 x Output fault (e.g. fault on a switching element)
5 x Internal fault (e.g. component faulty, data fault)
DIA (red)
Self-test after power up
Normal operation, door closed
Positive acknowledgement after acknowledgement of teach-in operation
LED not illuminated
Key to symbols
Important!
LED illuminated
10 Hz (8 s)
3 x
X Any state
LED flashes for 8 seconds at 10 Hz
LED flashes three times
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.
15
Operating Instructions Safety Switch CES-AH-C03-AH-SM

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-AH-C03-AH-SM

Parameter
min. typ. max.
Housing material Plastic Dimensions 40 x 40 x 171 mm Weight 0.35 kg Ambient temperature at I(LA) / I(LB) > 3 A -20 - +55
Storage temperature -25 - +70 Degree of protection IP67 Safety class III Degree of contamination 3 Installation position Connection M23 plug connector, 9-pin Operating voltage U
(reverse polarity protected, regulated, residual ripple < 5%)
B
20 - 28 V DC
Current consumption (no load on outputs) 150 mA External fuse (operating voltage U
, +LA and +LB) 0.25 - 10 A
B
Power supply for load U(+LA)/U(+LB) U Safety outputs LA/LB Semiconductor outputs, p-switching, short circuit-proof
- Output voltage U(LA/U(LB) HIGH U(LA) HIGH U(LB) V DC
1)
U
- 1.5 - U
B
LOW U(LA)/U(LB) 0 - 4 Testing of the outputs
- Test pulse length
- Test interval
-
10 Switching current per safety output 30 - 4000 mA Utilization category according to EN 60947-5-2 DC-13 24V 4A
Caution: outputs must be protected with a free-wheeling diode in case of inductive loads. Classification acc. to EN 60947-5-3 PDF-S Start input START
LOW 0 - 2 Rated insulation voltage U
i
Rated impulse withstand voltage U
imp
- - 75 V
- - 1.5 kV Resilience to vibration According to EN 60947-5-2 Switching delay from state change Fault detection time
3)
2)
- - 260 ms
- 0.12 15 s Difference time between the two safety outputs - - 50 ms Ready delay Dwell time
4)
5)
- - 3 s
0.5 - - s Switching frequency - - 1 Hz Repeat accuracy R acc. to EN IEC 60947-5-3 10 % Mounting distance between 2 switches or 2 actuators 80 - - mm EMC protection requirements In acc. with EN 60947-5-3
Reliability values according to EN ISO 13849-1
Category 3 Performance Level (PL) d PFH
d
Mission time 20 years
1) Values at a switching current of 4 A without taking into account the cable lengths.
2) Corresponds to the risk time according to EN 60947-5-3. This is the maximum switch-off delay for the safety outputs following removal of the actuator.
3) The fault detection time is the time for the detection of an internal fault in the device. At least one of the switching elements on each safety output is opened during this process.
4) After the operating voltage is switched on, the semiconductor outputs are switched off during the ready delay.
5) The dwell time of an actuator inside and outside the operating distance must be at least 0.5 s to ensure reliable detection of internal faults in the evaluation unit (self-monitoring).
Value
Any
-
-
1.03 x 10
Unit
°CAmbient temperature at I(LA) / I(LB) < 3 A -20 - +70
B
B
6
V DC
ms
-
B
-7
/ h
V DCHIGH 8 - U
s
16
Operating Instructions Safety Switch CES-AH-C03-AH-SM
Dimension drawing
0,5
34,5
27,5
15
40
40,3
0,3
LED status indication
x1
30
40
M 23
5,3
23,3
7,3
90
171
Active face
40
5,3
40
45,5
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Operating Instructions Safety Switch CES-AH-C03-AH-SM
Typical system times
Ready delay: After switching on, the unit carries out a self-test for 3 s. The system
is ready for operation only after this time. Risk time according to EN 60947-5-3: If an actuator moves outside the oper-
ating distance, the safety outputs LA and LB on the corresponding safety switch are deactivated after a maximum of 260 ms.
Difference time: The safety outputs LA and LB switch with a slight time offset. They have the same signal state at the latest after a difference time of 50 ms.
System times for "restart after fault" and "normal operation"
Example application: UB = 24 V +LA permanently connected to UB + LB switched by control system
Actuator
Start
+LA
LA
+LB
LB
DIA (LED red)
Detected
None
+24 V
0 V
+24 V
0 V
+24 V
0 V
+24 V
0 V
+24 V
0 V
On
Off
t
1
t
2
t
3
t
4
t
Start
D t
= Fault detection time
1
= Fault time (5 s, switch spends this time in the fault state)
D t
2
= PowerUp time (3 s)
D t
3
= Risk time ( 260 ms, time from "no actuator" to "outputs switch off")
D t
4
Occurrence of a fault
Fault detection
Restart
Start
Operational
No actuator
Figure 3: System times for individual switches
18
Ausgänge schalten aus
Start connected together
Actuator detected
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Technical data for actuator CES-A-BBA/CES-A-BCA

Parameter Value Unit
min. typ. max.
Housing material
- CES-A-BBA Fortron, reinforced thermoplastic, fully encapsulated
- CES-A-BCA Plastic PE-HD without reinforcement, fully encapsulated Flat seal material (CES-A-BCA only) Fluororubber 75 FPM 4100 Dimensions 42 x 25 x 12 mm Weight 0.02 kg Ambient temperature
- CES-A-BCA - 25 - + 50 Degree of protection acc. to EN
IEC 60529 Installation position Active face opposite read head Power supply Inductive via read head
Dimension drawing CES-A-BBA
42
IP67/IP69K
12
°C- CES-A-BBA - 25 - + 70
CES-A-B 071840
±0,1
32
2 safety screws M4 x 14 included
25
Active face
ø4,5
4,6
Dimension drawing CES-A-BCA
48
42
± 0,10
32
2 safety screws M4 x 14 included
Flat seal
31
25
Active face
212
4,5
4,6
ø8
Active face
8
Active face
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Operating Instructions Safety Switch CES-AH-C03-AH-SM
Switching distances
Operating distance for center offset m = 0
(only in combination with actuator CES-A-BBA/CES-A-BCA)
Parameter Value Unit
min. typ. max.
Switch-on distance - 20 -
Assured switch-on distance s
Switching hysteresis Assured switch-off distance s
1) The values apply for surface installation of the actuator.
1)
ao
1)
ar
Typical operating distance
(only in combination with actuator CES-A-BBA/CES-A-BCA)
18 - -
2 3 -
- - 40
mm
Y
30
25
-30
15
20
25
X
20
15
10
5
5
10
5
10
-30
15
20
25
30
Z
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 4: Typical operating distance
20
Operating Instructions Safety Switch CES-AH-C03-AH-SM
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
CD
Active face
Active face
21
Operating Instructions Safety Switch CES-AH-C03-AH-SM
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
35
-
mm
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 5: Typical operating distance
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Operating Instructions Safety Switch CES-AH-C03-AH-SM
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
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Operating Instructions Safety Switch CES-AH-C03-AH-SM
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
30
mm
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 6: Typical operating distance
24
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Ordering information and accessories

Designation Version
Safety Switch CES-AH-C03-AH-SM-106300

Inspection and service

Warning!
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
Order
no.
Unicode 106 300
Actuator BBA 42 mm x 25 mm 071 840 Actuator BCA 42 mm x 25 mm 088 786 Actuator BPA 40 mm x 40 mm 098 775 Actuator BRN 80 mm x 40 mm 100 251 Mating connector
for evaluation unit
M23 9-pin 106 597
Loss of the safety function because of damage to the system. In case of damage, the related safety component must be replaced. The replace­ment of individual parts in a safety component is not permitted.

Service

Ì Check for soiling
No servicing is required, repairs to the device are only allowed to be made by the manufacturer.
Note!
The year of manufacture can be seen in the lower right corner of the rating plate.
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
25
Operating Instructions Safety Switch CES-AH-C03-AH-SM

Declaration of conformity

26
Operating Instructions Safety Switch CES-AH-C03-AH-SM
27
More than safety.
Euchner GmbH + Co. KG Kohlhammerstrasse 16 D-70771 Leinfelden-Echterdingen
info@euchner.de www.euchner.de
Edition: 106595-06-12/13 Title: Operating Instructions Safety Switch CES-AH-C03-AH-SM (translation of the original operating instructions) Copyright: © EUCHNER GmbH + Co. KG, 12/2013
Subject to technical modifications, no responsibility is accepted for the accuracy of this information.
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