EUCHNER CTP-LBI-AP User manual

EN
Operating Instructions
Transponder-Coded Safety Switch With Guard Locking
CTP-LBI-AP Unicode/Multicode

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
2(translation of the original operating instructions) 2136918-04-05/19
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. Guard locking monitoring.................................................................................................................8
6.2. Door monitoring output (OD)............................................................................................................8
6.3. Diagnostics output (OI) ....................................................................................................................8
6.4. Guard locking monitoring output (OL)................................................................................................8
6.5. Guard locking on version CTP-LBI ....................................................................................................9
6.6. Switching states .............................................................................................................................9
7. Manual release................................................................................................... 10
7.1. Auxiliary release and auxiliary key release.......................................................................................10
7.1.1. Actuating auxiliary release .............................................................................................10
7.1.2. Actuating auxiliary key release .......................................................................................11
7.2. Emergency unlocking ....................................................................................................................11
7.2.1. Actuating emergency unlocking......................................................................................11
7.3. Escape release (optional) ..............................................................................................................12
7.3.1. Actuating escape release...............................................................................................12
7.4. Wire front release .........................................................................................................................13
7.4.1. Laying wire front release................................................................................................13
8. Changing the approach direction ........................................................................ 14
9. Installation ......................................................................................................... 15
10. Electrical connection .......................................................................................... 16
10.1. Notes about .........................................................................................................................16
10.2. Safety in case of faults..................................................................................................................17
10.3. Fuse protection for power supply...................................................................................................17
10.4. Requirements for connection cables...............................................................................................17
10.5. Pin assignment of safety switch CTP-…-AP-…-SA-… with plug connector M12, 8-pin ..........................17
10.6. Connection CTP-AP .......................................................................................................................18
10.7. Notes on operation with safe control systems.................................................................................19

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2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
11. Setup ................................................................................................................. 20
11.1. LED displays ................................................................................................................................20
11.2. Teach-in function for actuator (only for unicode evaluation) ...............................................................20
11.2.1. Actuator teach-in...........................................................................................................20
11.3. Functional check...........................................................................................................................21
11.3.1. Mechanical function test ................................................................................................21
11.3.2. Electrical function test...................................................................................................21
12. System status table ............................................................................................ 22
13. Technical data .................................................................................................... 23
13.1. Technical data for safety switch CTP-LBI-AP ....................................................................................23
13.1.1. Typical system times.....................................................................................................24
13.2. Radio frequency approvals.............................................................................................................25
13.3. Dimension drawing for safety switch CTP… ....................................................................................26
13.4. Technical data for actuator CTP-... .................................................................................................28
13.4.1. Dimension drawing for actuator CTP-..............................................................................28
14. Ordering information and accessories................................................................. 31
15. Inspection and service ........................................................................................ 31
16. Service .............................................................................................................. 31
17. Declaration of conformity ................................................................................... 32

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
4(translation of the original operating instructions) 2136918-04-05/19
1. About this document
1.1. Scope
These operating instructions are valid for all CTP-LBI-AP… from version V1.0.0. These operating instructions, the document
“Safety information and maintenance” and any enclosed data sheet form the complete user information for your device.
1.2. Target group
Design engineers and installation planners for safety devices on machines, as well as setup and servicing staff possessing
special expertise in handling safety components.
1.3. Key to symbols
Symbol/depiction Meaning
Printed document
Internet
www Document is available for download at www.euchner.com
Document on CD
MEM This section is applicable only if the memory card is used
DANGER
WARNING
CAUTION
Safety precautions
Danger of death or severe injuries
Warning about possible injuries
Caution slight injuries possible
NOTICE
Important!
Notice about possible device damage
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 CTP
(2138087)
Basic information for safe setup and service
Operating Instructions
(2136918) (this document)
Possibly enclosed data
sheet Item-specic information about deviations or additions
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.

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2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
2. Correct use
Safety switches series CTP-L.-… are interlocking devices with guard locking (type 4). The device complies with the require-
ments according to ENIEC60947-5-3. Devices with unicode evaluation possess a high coding level, devices with multicode
evaluation possess a low coding level.
In combination with a movable guard and the machine control, this safety component prevents the guard from being opened
while a dangerous machine function is being performed.
This means:
ÌStarting commands that cause a dangerous machine function must become active only when the guard is closed and
locked.
ÌThe guard locking device must not be unlocked until the dangerous machine function has ended.
ÌClosing and locking a guard must not cause automatic starting of a dangerous machine function. A separate start com-
mand must be issued. For exceptions, refer to ENISO12100 or relevant C-standards.
Devices from this series are also suitable for process protection.
Before the device is used, a risk assessment must be performed on the machine, e.g. in accordance with the following
standards:
ÌENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
ÌENISO12100, Safety of machinery – General principles for design – Risk assessment and risk reduction
ÌIEC62061, Safety of machinery – Functional safety of safety-related electrical, electronic and programmable electronic
control systems
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
ÌENISO14119, Safety of machinery – Interlocking devices associated with guards – Principles for design and selection
ÌEN60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General requirements
The safety switch is allowed to be operated only in conjunction with the intended EUCHNER actuator and the related connec-
tion components from EUCHNER. On the use of different actuators or other connection components, EUCHNER provides
no warranty for safe function.
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.
ÌIt is only allowed to use components that are permissible in accordance with the table below.
Table 1: Possible combinations for CTP components
Safety switch
Actuator
A-C-H-...
CTP-… Unicode/Multicode
Key to symbols Combination possible

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
6(translation of the original operating instructions) 2136918-04-05/19
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of guard locking and the position of the guard (interlocking device with guard locking according
to ENISO14119)
ÌSafety function (see chapter 6.6. Switching states on page 9):
- The safety outputs are switched off when guard locking is released (monitoring of the locking device).
- The safety outputs are switched off when the guard is open (monitoring of the door position).
- Guard locking can be activated only when the actuator is located in the switch head (failsafe locking mechanism).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 13. Technical data on page 23).
Activation of guard locking
If the device is used as guard locking for personnel protection, the control of the guard locking must be regarded as a
safety function.
The safety level for the control of the guard locking is determined by the device PFHDint. and by the external control (e.g.
PFHDext. of the standstill monitor), but cannot be higher than PLb.
PFHDint.
(internal electronic)
Guardlocking Device
PFHdext.
(e.g. standstill
monitor) (locking mean)
Safety characteristics: category, Performance Level, PFHD(see chapter 13. Technical data on page 23).

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2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
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 instructions are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety precautions
Safety switches fulll personnel protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the guard particularly
Ìafter any setup work
Ìafter the replacement of a system component
Ìafter an extended period without use
Ìafter every fault
Independent of these checks, the safe function of the guard should be checked at suitable intervals as part of the mainte-
nance schedule.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components perform
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.
ÌPrevent bypassing by means of replacement actuators (only for multicode evaluation). For this
purpose, restrict access to actuators and to keys for releases, for example.
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 occupational safety and accident prevention.
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. 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 instruc-
tions from www.euchner.com.

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
8(translation of the original operating instructions) 2136918-04-05/19
6. Function
The device permits the locking of movable guards.
The system consists of the following components: coded actuator (transponder)
and switch.
Whether the device learns the complete actuator code (unicode) or not (multi-
code) depends on the respective version.
ÌDevices with unicode evaluation: The actuator must be assigned to the
safety switch by a teach-in operation so that it is detected by the system.
This unambiguous assignment ensures a particularly high level of protection
against tampering. The system thus possesses a high coding level.
ÌDevices with multicode evaluation: 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.
When the guard is closed, the actuator is moved into the safety switch. When the switch-on distance is reached, power is
supplied to the actuator by the switch and data are transferred.
If a permissible code is detected, the safety outputs are switched on.
The safety outputs and the monitoring output (OL) are switched off when the guard is unlocked.
In the event of a fault in the safety switch, the safety outputs are switched off and the DIA LED illuminates red. The oc-
currence of faults is detected at the latest on the next demand to close the safety outputs (e.g. on starting).
The switch has, in addition to the mechanical/electromagnetic guard locking, xing for the guard locking pin. The guard
locking pin is held in its current position if the operating voltage is not present. The guard locking pin can be moved only
by applying the operating voltage.
If the guard locking pin is extended and the guard is still open when the power supply is interrupted, the guard locking pin
will be pushed down and held in this position the next time the door is closed.
In case of interruption of the power supply (operating voltage) for the switch or if the machine is switched off for servicing,
for example, the guard locking pin is held in its last position. As a result the safety door is either permanently locked or it
can be closed and opened as often as required without the guard locking pin locking.
6.1. Guard locking monitoring
All versions feature two safe outputs for monitoring guard locking. The safety outputs (FO1A and FO1B) are switched
off when guard locking is released.
6.2. Door monitoring output (OD)
The door monitoring output is switched on as soon as the actuator is inserted in the switch head (state: guard closed and
not locked). The door monitoring output also remains switched on when guard locking is active.
6.3. Diagnostics output (OI)
The diagnostics output is switched on in the event of a fault (switch-on condition as for DIA LED).
6.4. Guard locking monitoring output (OL)
The guard locking monitoring output is switched on when guard locking is active.
Transponder-coded
actuator
Guard locking pin

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2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
6.5. Guard locking on version CTP-LBI
(Guard locking actuated by spring force and released by power-ON)
Activating guard locking: close guard; no voltage at control input IMP
Releasing guard locking: apply voltage to control input IMP.
The spring-operated guard locking functions in accordance with the closed-circuit current principle. If the voltage is interrupted
at the solenoid, the guard locking remains active and the guard cannot be opened directly.
If the guard is opened when the power supply is interrupted and is then closed, the guard locking pin will be pushed down
and held in this position. This prevents people from being locked in unintentionally.
6.6. Switching states
The detailed switching states for your switch can be found in the system status table. All safety outputs, monitoring outputs
and display LEDs are described there.
Guard closed and locked
IMP
IMM
Guard closed and not locked
IMP
IMM
Guard open
IM
P
IM
M
Control input IMP off on (irrelevant)
Safety outputs FO1A and FO1B on off off
Guard locking monitoring output OL on off off
Door monitoring output OD on on off

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
10 (translation of the original operating instructions) 2136918-04-05/19
7. Manual release
Important!
S1
S2
S3
No further release functions can be retrotted on Extended variants with controls in position 1 (S1)
and position 2 (S2).
Important!
ÌAll release functions engage when the device is electrically isolated.
ÌGuard locking remains released when the release function is reset.
Some situations require the guard locking to be released manually (e.g. malfunctions or an emergency). A function test
should be performed after release.
More information on this topic can be found in the standard ENISO14119:2013, section 5.7.5.1. The device can feature
the following release functions:
7.1. Auxiliary release and auxiliary key release
In the event of malfunctions, the guard locking can be released with the auxiliary release irrespective of the state of the
solenoid.
The safety outputs are switched off when the auxiliary release is actuated. Use the safety outputs to generate a stop
command.
The monitoring output OL is switched off; OD can assume an undened state. Open the guard and close it again after re-
setting the auxiliary release. The device will then operate normally again.
7.1.1. Actuating auxiliary release
1. Unscrew locking screw.
2. Using a screwdriver, turn the auxiliary release to in the direction of the arrow.
¨Guard locking is released.
Important!
ÌThe actuator must not be under tensile stress during manual release.
ÌAfter use, reset the auxiliary release and screw in and seal the locking
screw (e.g. with sealing lacquer).
ÌThe auxiliary key release must not be used to lock the switch during
servicing to prevent activation of guard locking, for example.
ÌLoss of the release function due to mounting errors or damage during
mounting.
ÌCheck the release function every time after mounting.
ÌAfter manual unlocking, the solenoid must be energized briey to
re-establish the dened state.
ÌPlease observe the notes on any enclosed data sheets.
Auxiliary
release
Locking
screw

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2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
7.1.2. Actuating auxiliary key release
On devices with auxiliary key release (can be retrotted), simply turn the key to release. Function as for auxiliary release.
For mounting, see the auxiliary key release supplement.
7.2. Emergency unlocking
Permits opening of a locked guard from outside the danger zone without tools. For mounting, see the mounting supplement.
Important!
ÌIt must be possible to operate the emergency unlocking manually from outside the protected area
without tools.
ÌThe emergency unlocking must possess a marking indicating that it may be used only in an emer-
gency.
ÌThe actuator must not be under tensile stress during manual release.
ÌThe emergency unlocking must be sealed or the misuse of the release function must be prevented
in the control system.
ÌThe unlocking function meets all other requirements from ENISO14119.
ÌThe emergency unlocking meets the requirements of Category B according to
ENISO13849-1:2015.
ÌLoss of the release function due to mounting errors or damage during mounting.
ÌCheck the release function every time after mounting.
ÌPlease observe the notes on any enclosed data sheets.
7.2.1. Actuating emergency unlocking
ÌTurn emergency unlocking clockwise until it clicks into place.
¨Guard locking is released.
To reset, press the snap-in bolt inward using a small screwdriver or similar tool and turn the
emergency unlocking back.
The safety outputs are switched off when the emergency unlocking is actuated. Use the safety
outputs to generate a stop command.
The monitoring output OL is switched off; OD can assume an undened state. Open the guard and
close it again after resetting the emergency unlocking. The device will then operate normally again.
After manual unlocking, the solenoid must be energized briey to re-establish the dened state.
Snap-in bolt

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
12 (translation of the original operating instructions) 2136918-04-05/19
7.3. Escape release (optional)
Permits opening of a locked guard from the danger zone without tools (see chapter 13.3. Dimension
drawing for safety switch CTP… on page 26).
Important!
ÌIt must be possible to actuate the escape release manually from in-
side the protected area without tools.
ÌIt must not be possible to reach the escape release from the outside.
ÌThe actuator must not be under tensile stress during manual release.
ÌThe escape release meets the requirements of Category B according
to ENISO13849-1:2015.
7.3.1. Actuating escape release
ÌPress the red release knob to the end stop
¨Guard locking is released.
Pull the knob out again to reset.
The safety outputs are switched off when the escape release is actuated. Use the safety outputs to generate a stop
command.
The monitoring output OL is switched off; OD can assume an undened state. Open the guard and close it again after re-
setting the escape release. The device will then operate normally again.
After manual unlocking, the solenoid must be energized briey to re-establish the dened state.

13
2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
7.4. Wire front release
Release via a pull wire. Depending on the type of attachment, the wire front release can be used as emergency unlocking
or escape release.
The following applies to non-latching wire front releases.
If the release is to be used as emergency unlocking, one of the following measures must be
taken (see EN ISO 14119:2013, section 5.7.5.3):
ÌInstall the release so that it can be reset only with the aid of a tool.
ÌAlternatively, the reset can be undertaken at the control system level. E.g. by means of a
plausibility check (status of the safety outputs does not match the guard locking activation
signal).
The emergency-unlocking specications in chapter 7.2 on Page 11 apply irrespective of
this information.
Important!
ÌThe wire front release meets the requirements of CategoryB accord-
ing to ENISO13849-1:2015.
ÌThe correct function depends on the laying of the pull wire and on the
attachment of the pull handle, and this is the responsibility of the plant
manufacturer.
ÌThe actuator must not be under tensile stress during manual release.
7.4.1. Laying wire front release
Important!
ÌLoss of the release function due to mounting errors, damage or wear.
ÌCheck the release function every time after mounting.
ÌAfter manual unlocking, the solenoid must be energized briey to re-establish the dened state.
ÌWhen routing the wire front release, ensure that it operates smoothly.
ÌObserve the min. bending radius (100mm) and minimize the number of bends.
ÌThe switch is not allowed to be opened.
ÌObserve the notes on the enclosed data sheets.

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
14 (translation of the original operating instructions) 2136918-04-05/19
8. Changing the approach direction
The approach direction needs to be changed only if the switch is to be approached from the rear.
Proceed as follows:
1. Remove the screws from the safety switch
2. Set the required direction
3. Tighten the screws with a torque of 1.2Nm
C
B
D
A
Figure 1: Changing the approach direction

15
2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
9. Installation
CAUTION
Safety switches must not be bypassed (bridging of contacts), turned away, removed or otherwise
rendered ineffective.
ÌObserve ENISO14119:2013, section 7, for information about reducing the possibilities for by-
passing an interlocking device.
NOTICE
Risk of damage to equipment and malfunctions as a result of incorrect installation.
ÌSafety switches and actuators must not be used as an end stop.
ÌObserve ENISO14119:2013, sections 5.2 and 5.3, for information about fastening the safety
switch and the actuator.
ÌProtect the switch head against damage, as well as penetrating foreign objects such as swarf,
sand and blasting shot, etc.
ÌThe rear side of the switch must be covered, but it must not be sealed.
ÌObserve the min. door radii (see chapter 13.4.1. Dimension drawing for actuator CTP‑... on page
28).
ÌObserve the tightening torque for fastening the switch (max.1.4Nm).
A clearance of 12mm must be maintained around the actuator head (see Figure 2).
min. 12 min. 12
Figure 2: Actuator head clearance

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
16 (translation of the original operating instructions) 2136918-04-05/19
10. Electrical connection
WARNING
If there is a mistake, loss of the safety function due to incorrect connection.
ÌTo ensure safety, both safety outputs (FO1A and FO1B) must always be evaluated.
ÌMonitoring outputs must not be used as safety outputs.
ÌLay the connection cables with protection to prevent the risk of short circuits.
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection.
ÌThe device generates its own test pulses on the output lines FO1A/FO1B. A downstream control
system must tolerate these test pulses, which may have a length of up to 0.35ms.
Depending on the inertia of the downstream device (control system, relay, etc.), this can lead to
short switching processes.
ÌThe 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.
ÌAll 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).
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. RC interference suppression units
must not be used.
ÌPower 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.
ÌTo avoid EMC interference, the physical environmental and operating conditions at the in-
stallation site of the device must comply with the requirements according to the standard
EN60204-1:2006, section 4.4.2 (EMC).
Please pay attention to any interference elds from 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 ash), the safety switch must be returned unopened to the manufacturer.
10.1. Notes about
Important!
ÌFor use and operation as per the requirements 1), 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.
ÌFor use and applications as per the requirements 1), a connection cable listed under UL cate-
gory code CYJV/7, min. 24AWG, min 80°C, must be used.
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).

17
2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
10.2. Safety in case of faults
ÌThe operating voltage UB and the control voltage IMP are reverse polarity protected.
ÌThe safety outputs FO1A/FO1B are short circuit-proof.
ÌA short circuit between FO1A and FO1B is detected by the switch.
ÌA short circuit in the cable can be excluded by laying the cable with protection.
10.3. 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 Imax
Imax = IUB + IFO1A+FO1B + IOL + IOD
IUB = Switch operating current (max. 440mA)
IOL/IOD = Load current of monitoring outputs (max. 50mA per monitoring output)
IFO1A+FO1B = Load current of safety outputs FO1A + FO1B (2xmax. 150mA)
10.4. Requirements for connection cables
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection cables.
ÌUse connection components and connection cables from EUCHNER
ÌOn the usage of other connection components, the requirements in the following table apply.
EUCHNER provides no warranty for safe function in case of failure to comply with these require-
ments.
Observe the following requirements with respect to the connection cables:
For safety switches CTP-…-AP-…-SA-… with plug connector M12, 8-pin
Parameter Value Unit
Conductor cross-section, min. 0.25 mm²
R max. 80 W/km
C max. 120 nF/km
L max. 0.65 mH/km
Recommended cable type LIYY 8x0.25mm²
10.5. Pin assignment of safety switch CTP-…-AP-…-SA-… with plug connector M12, 8-pin
Wiring diagram C
Plug connector
(view of connection side) Pin Designation Function Wire color of con- nection cable 1)
1 x M12
8
5
6
7
2
4
3
1
1 IMP Operating voltage of guard locking solenoid, 24 V DC WH
2 UB Operating voltage of AP electronics, 24VDC BN
3 FO1A Safety output, channel1 GN
4 FO1B Safety output, channel2 YE
5 OI Diagnostic output GY
6 OD Door monitoring output PK
7 OL Guard locking monitoring output BU
8 0V UB Operating voltage of guard locking solenoid, 0V and operating volt-
age of AP electronics, 0V RD
1) Only for standard EUCHNER connection cable

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
18 (translation of the original operating instructions) 2136918-04-05/19
10.6. Connection CTP-AP
Connect the device as shown in Figure 3. The monitoring outputs can be routed to a control system.
On devices with RST input the following applies: The switches 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s. The RST input must be connected to 0V if it is not used.
WARNING
If there is a mistake, loss of the safety function due to incorrect connection.
ÌTo ensure safety, both safety outputs (FO1A and FO1B) must always be evaluated.
Important!
ÌThe example shows only an excerpt that is relevant for connection of the CTP system. The exam-
ple illustrated here does not show complete system planning. The user is responsible for safe inte-
gration into the overall system. Detailed application examples can be found at www.euchner.com.
Simply enter the order number in the search box. All available connection examples for the device
can be found in “Downloads.”
24 V DC
-F1
-S1
0 V
Connected
load
Safety Outputs
Door
Monitoring
Read Head
Actuator
Monitoring Outputs
5
OI
Diagnostic
Locking
active
UB
2
IMP
1
8
0V
7
OL
6
OD
3
FO1A
4
FO1B
CTP
Figure 3: Connection example, version with plug connector M12

19
2136918-04-05/19 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
EN
10.7. Notes on operation with safe control systems
Please observe the following requirements for connection to safe control systems:
ÌUse a common power supply for the control system and the connected safety switches.
ÌThe device does not tolerate voltage interruptions at 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 sufcient electrical cur-
rent.
ÌThe safety outputs (FO1A and FO1B) can be connected to the safe inputs of a control system. Prerequisite: the input
must be suitable for pulsed safety signals (OSSD signals, e.g. from light grids). The control system must tolerate test
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 chapter 13. Tech‑
nical data on page 23.
ÌThe following applies to single-channel control of guard locking:
The guard locking (IMM) and the control system must have the same ground.
ÌFor dual-channel control of the solenoid voltage by safe outputs of a control system, the following points must be ob-
served (see also Figure 4 on page 19):
- If possible, switch off the pulsing of the outputs in the control system.
- Pulses up to a length of max. 5 ms are tolerated.
A detailed example of connecting and setting the parameters of the control system is available for many devices at
www.euchner.com in Downloads » Applications » CTP. The features of the respective device are dealt with there in greater
detail.
24 V DC
GND
4/8 F-DI
PWR
Supply of
the control
4F-DO
-X1
DI4 DI0 DC24V M
-X1
DO..P
Safety Outputs
Door
Monitoring
Read Head
Actuator
Monitoring Outputs
5
OI
Diagnostic
Locking
active
UB
2
IMP
1
8
0V
7
OL
6
OD
3
FO1A
4
FO1B
CTP
Figure 4: Connection example for the connection to ET200

Operating Instructions
Transponder-Coded Safety Switch CTP-LBI-AP
20 (translation of the original operating instructions) 2136918-04-05/19
11. Setup
11.1. LED displays
You will nd a detailed description of the signal functions in chapter 12. System status table on page 22.
LED Color
STATE green
LOCK yellow
DIA red
11.2. Teach-in function for actuator (only for unicode evaluation)
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 switched off, i.e. the system is in the safe state.
The teach-in operation is fully automatic. The number of possible teach-in operations is unlimited.
Tip!
Prior to switching on, close the guard on which the actuator to be taught in is installed. The teach-in
operation starts immediately after switching on. This feature simplies above all teach-in with series
circuits and on large installations.
Important!
ÌThe teach-in operation may be performed only if the device does not have any internal errors.
ÌDevices in the condition as supplied remain in teach-in standby state until you have successfully
taught in the rst actuator. Once taught in, switches remain in the teach-in standby state for ap-
prox. 3min. after each switch-on.
ÌThe 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 in.
ÌThe safety switch can be operated only with the last actuator taught in.
ÌIf the switch detects the actuator that was most recently taught when in the teach-in standby state,
this state is ended immediately and the switch changes to normal state.
ÌThe actuator to be taught in is not activated if it is within the operating distance for less than 30s.
11.2.1. Actuator teach-in
1. Establish teach-in standby:
- Devices in the condition as supplied: unlimited teach-in standby after switching on
- Switch already taught in: teach-in standby is available for approx. 3 min after switching on
¨Teach-in standby indication, STATE LED ashes 3x repeatedly
2. Insert the actuator during teach-in standby.
¨The automatic teach-in operation starts (duration approx. 30 s).
During the teach-in operation the STATE LED ashes (approx. 1Hz).
Alternate ashing of the STATE and DIA LEDs acknowledges the successful teach-in operation.
Teach-in errors are indicated by the illumination of the red DIA LED and a ashing code on the green State LED (see
chapter 12. System status table on page 22).
3. Switch off operating voltage UB (min. 3s).
LED
STATE
LOCK
DIA