EUCHNER CTP-L AS Series User manual

EN
Operating Instructions
Transponder-Coded Safety Switch with Guard Locking
CTP-L.-AS Unicode/Multicode

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
2(translation of the original operating instructions) 2124662-07-05/23
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 on version CTP-L1......................................................................................................8
6.2. Guard locking on version CTP-L2......................................................................................................9
6.3. 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 release .......................................................................................................................11
7.2.1. Actuating emergency release..........................................................................................11
7.3. Escape release (optional) ..............................................................................................................12
7.3.1. Actuating escape release ...............................................................................................12
7.4. Wire front release (bowden) ...........................................................................................................13
7.4.1. Laying wire front release.................................................................................................13
8. Changing the approach direction ........................................................................ 14
9. Mounting............................................................................................................ 15
10. Electrical connection .......................................................................................... 16
10.1. Notes about .........................................................................................................................16
10.2. Setting the AS-Interface address ....................................................................................................16
10.3. Conguration in the AS-Interface safety monitor ..............................................................................16
10.3.1. Dual-channel conditionally dependent...............................................................................16
10.4. AS-Interface status messages........................................................................................................17
10.5. Safety in case of faults..................................................................................................................17
10.6. Connection of guard locking control ...............................................................................................17
10.6.1. Guard locking control by means of switching the auxiliary voltage......................................17
10.6.2. Guard locking control via ASi bit D0 (guard locking for process protection only) ..................17

3
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
11. Setup ................................................................................................................. 18
11.1. LED displays ................................................................................................................................18
11.2. Teaching-in actuator (only for unicode evaluation) ............................................................................18
11.3. Functional check...........................................................................................................................19
11.3.1. Mechanical function test .................................................................................................19
11.3.2. Electrical function test....................................................................................................19
12. System status table ............................................................................................ 20
13. Technical data .................................................................................................... 21
13.1. Technical data for safety switch CTP-AS..........................................................................................21
13.1.1. Typical system times......................................................................................................22
13.2. Dimension drawing for safety switch CTP… ....................................................................................22
13.2.1. Dimension drawing for product versions V1.0.X and V1.1.X...............................................22
13.2.2. Dimension drawing for product version V1.2.X .................................................................23
13.2.3. Dimension drawing for variants CTP….............................................................................24
13.3. Technical data for actuator CTP-... .................................................................................................25
13.3.1. Dimension drawing for actuator CTP-...............................................................................25
14. Ordering information and accessories................................................................. 28
15. Inspection and service ........................................................................................ 28
16. Service .............................................................................................................. 28
17. Declaration of conformity ................................................................................... 28

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
4(translation of the original operating instructions) 2124662-07-05/23
1. About this document
1.1. Scope
These operating instructions are valid for all CTP-L.-AS… from version V1.0.X to version 1.2.X. These operating instructions,
the document Safety information and any available 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
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
(2525460) Basic safety information
Operating instructions
(2124662) (this document)
Internet
www
Declaration of conformity Declaration of conformity
Internet
www
Possibly available data
sheet Item-specic information about deviations or additions
Internet
www
Important!
Always read all documents to gain a complete overview of safe installation, setup and use of the
device. The documents can be downloaded from www.euchner.com. For this purpose enter the doc.
no. in the search box.

5
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
2. Correct use
Safety switches series CTP-L.-… are operated as slaves on the safety bus AS-Interface Safety at Work and function as interlock-
ing devices with guard locking solenoid (type4). The device complies with the requirements 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 must not be released 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 command
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
ÌENISO12100
ÌIEC62061
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1
ÌENISO14119
ÌEN60204-1
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-L.-AS
6(translation of the original operating instructions) 2124662-07-05/23
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 6.3. Switching states on page 9):
- When guard locking is released, no valid code sequence is sent (monitoring of the locking device).
- When the guard is open, no valid code sequence is sent (monitoring of the door position).
- Guard locking can be activated only when the actuator is located in the switch head (prevention of inadvertent locking
position (faulty closure protection)).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 13. Technical data on page 21).
Activation of guard locking by switching on/off the auxiliary voltage (applies only to guard locking devices
according to the closed-circuit current principle)
If the device is used as guard locking for personnel protection, control of guard locking must be regarded as a safety function.
The device does not feature a safety characteristic for control of guard locking, because the guard locking solenoid is
completely disconnected from outside the device via the auxiliary power (no control function within the device). It therefore
does not contribute to the failure probability.
The safety level for the control of the guard locking is dened only by the external control (e.g. PFHD ext. for the standstill
monitor).
Guardlocking Device
PFHDext.
(e.g. standstill
monitor)
(locking mean)
Auxiliary voltage
Control via ASi bit D0 (only for process protection) in conjunction with auxiliary voltage
Because control is via the non-safe bit D0, this control is only allowed to be used for process protection.
Guardlocking Device
PFHDext.
(e.g. standstill
monitor)
(locking mean)
Control via ASi Bit D0
in conjunction with auxiliary voltage

7
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety regulations are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety precautions
Safety switches fulll personnel protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safeguard 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 safeguard should be checked at suitable intervals as part of the
maintenance schedule.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components fulll
a personnel protection function.
ÌSafety components must not be bypassed, turned away, removed or otherwise rendered ineffective.
On this topic pay attention in particular to the measures for reducing the possibility of bypassing
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 pur-
pose, 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 operational 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. For this reason you should
archive a printed copy of the operating instructions. You can download the operating instructions from
www.euchner.com.

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
8(translation of the original operating instructions) 2124662-07-05/23
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 unicode evaluation,
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 (unicode evaluation). The system possesses a low coding level.
When the guard is closed, the actuator is moved into the safety switch. When the operating distances are reached, power
is supplied to the actuator by the switch and data are transferred.
If the guard is closed, guard locking is effective and the code is permissible, each CTP-AS transmits a switch-specic, unique
safety code sequence with 8x4 bits via the AS-Interface bus.
The zero sequence is transmitted via the AS-Interface bus when the guard is unlocked.
In the event of a fault in the safety switch, the zero sequence is transmitted via the AS-Interface bus and the LOCK/DIA LED
illuminates red. The occurrence of faults is detected at the latest on the next demand to close the safety outputs (e.g. on
starting).
6.1. Guard locking on version CTP-L1
(guard locking actuated by spring force and released by power-ON)
Activating guard locking: Close guard; no auxiliary power at the solenoid and/or clear AS-Interface output bit D0.
Releasing guard locking: Apply auxiliary power to the solenoid and set AS-Interface output bit D0.
The spring-operated guard locking functions in accordance with the closed-circuit current principle. If auxiliary power is
interrupted, guard locking remains active and the guard cannot be opened directly.
Important!
ÌIf the guard is open when the auxiliary power is interrupted and the guard is then closed, guard locking
is activated. This can lead to persons being locked in unintentionally.
ÌTo ensure safe control of the guard locking, the auxiliary power must be shut down.
The actuator cannot be pulled out of the switch and the guard is locked as long as the guard locking pin is extended.
If the solenoid is controlled via the ASi bus and auxiliary power is applied to the solenoid, the guard locking pin is retracted
and the actuator is released. The guard can be opened.
Transponder-coded
actuator
Guard locking pin

9
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
6.2. Guard locking on version CTP-L2
(guard locking actuated by power-ON and released by spring force)
Important!
ÌGuard locking devices according to the open-circuit current principle are not intended for protecting
personnel.
ÌUse as guard locking for personnel protection is possible only in special cases, after strict assessment
of the accident risk (see ENISO14119:2013, section 5.7.1)!
Activating guard locking: Apply auxiliary power to the solenoid and set AS-Interface output bit D0.
Releasing guard locking: No auxiliary power at the solenoid and/or clear AS-Interface output bit D0.
The magnetically actuated guard locking operates in accordance with the open-circuit current principle. If the solenoid is
not controlled (D0=0) or if auxiliary power is switched off, guard locking is released and the guard can be opened directly!
If the solenoid is controlled via the ASi bus (D0=1) and auxiliary power is applied to the solenoid, the guard locking pin is
held in extended position and the guard is locked.
6.3. Switching states
Guard closed and locked Guard closed and not locked Guard open
Programming State D0, D1 D2, D3 Monitor diagnostics
Dual-channel
conditionally depen-
dent
Guard closed and locked Code sequence Green
Guard closed and not locked Half-se-
quence 00 Yellow ashing
Invalid state
(guard open, guard locking active) 00 Half-se- quence
Red ashing
(monitoring of the invalid state)
Guard open 00 00 Red
Address 0 or communication disrupted – Gray

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
10 (translation of the original operating instructions) 2124662-07-05/23
7. Manual release
Some situations require the guard locking to be released manually (e.g. malfunctions or an emergency). A function test must
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 or the auxiliary key release irre-
spective of the state of the solenoid.
The zero sequence is sent via the ASi bus when the auxiliary release or the auxiliary key release is actuated.
Open the guard and close it again after resetting the auxiliary release or auxiliary key release. The device will then operate
normally again.
Important!
ÌThe actuator must not be under tensile stress during manual release.
ÌThe locking screw of the auxiliary release must be returned to its original position and sealed before
putting into operation (with sealing lacquer, for example).
ÌAfter use, reset the auxiliary release and screw in and seal the locking screw (with sealing lacquer,
for example).
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.
ÌObserve the notes on any available data sheets.
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.
Auxiliary
release
Locking
screw

11
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
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 release
This permits opening of a locked guard from outside the danger zone without tools. For mount-
ing, see the mounting supplement.
Important!
ÌIt must be possible to operate the emergency release manually from outside the protected area
without tools.
ÌThe emergency release must possess a marking indicating that it may be used only in an emergency.
ÌThe actuator must not be under tensile stress during manual release.
ÌThe emergency release must be sealed or the misuse of the release function must be prevented in
the control system.
ÌThe release function meets all other requirements from ENISO14119.
ÌThe emergency release 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.
ÌObserve the notes on any available data sheets.
7.2.1. Actuating emergency release
Turn the emergency release 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 release back.
The zero sequence is sent via the ASi bus when the emergency release is actuated.
Open the guard and close it again after resetting the emergency release. The device will then
operate normally again.
Snap-in bolt

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
12 (translation of the original operating instructions) 2124662-07-05/23
7.3. Escape release (optional)
This permits opening of a locked guard from the danger zone without tools (see chapter 13.2. Dimension
drawing for safety switch CTP… on page 22).
Important!
ÌIt must be possible to actuate the escape release manually from inside
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
Press the red release knob to the end stop.
¨Guard locking is released.
Pull the knob out again to reset.
The half-sequence/zero sequence is sent via the ASi bus when the escape release is actuated.
Open the guard and close it again after resetting the escape release. The device will then operate normally again.

13
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
7.4. Wire front release (bowden)
Release via a pull wire. Depending on the type of attachment, the wire front release can be used as an emergency release
or escape release.
The following applies to non-latching wire front releases.
If the release is to be used as an emergency release, 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, resetting can be implemented at the control-system level, e.g. by means of a
plausibility check (status of the transmitted code sequence/zero sequence does not match
the guard locking control signal).
The emergency-release 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 according
to ENISO13849-1:2015.
ÌThe correct function depends on the laying of the pull wire and the
attachment of the pull handle. The plant manufacturer is responsible
for proper installation; the notes from chapter 7.4.1 must be observed.
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.
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.
ÌPlease observe notes on the corresponding data sheets.

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
14 (translation of the original operating instructions) 2124662-07-05/23
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
Fig. 1: Changing the approach direction

15
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
9. Mounting
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 bypassing
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 mounting 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.
ÌObserve the min. door radii (see chapter 13.3.1. Dimension drawing for actuator CTP‑... on page 25).
ÌObserve the tightening torque for mounting the switch (max.1.4Nm).
ÌThe locking screw of the auxiliary release must be returned to its original position and sealed before
putting into operation (with sealing lacquer, for example).
A clearance of 12mm must be maintained around the actuator head (see Fig. 2).
min. 12 min. 12
Fig. 2: Actuator head clearance

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
16 (translation of the original operating instructions) 2124662-07-05/23
10. Electrical connection
1 AS-Interface +
2 Auxiliary voltage, 0 V
3 AS-Interface -
4 Auxiliary voltage, 24 V
View of safety switch plug connector
43
12
Fig. 3: Terminal assignment, AS-Interface M12 plug connector
10.1. Notes about
Important!
ÌThis device is intended to be used with a Class2 power source in accordance with UL1310.
As an alternative an LV/C (Limited Voltage/Current) power source with the following properties can
be used:
- This device shall be used with a suitable isolating source in conjunction with a fuse in accordance
with UL248. The fuse shall be rated max. 3.3A and be installed in the max. 30VDC power supply
to the device in order to limit the available current to comply with the UL requirements. Please note
possibly lower connection ratings for your device (refer to the technical data).
ÌFor use and application as per the requirements of UL 1) a connecting cable listed under the UL
category 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).
10.2. Setting the AS-Interface address
The address can be set prior to or after mounting.
The AS-Interface address of the safety switch is set using an AS-Interface programming device. Addresses 1 to 31 are valid.
The unit is programmed by connecting the programming device to the M12 plug connector of the safety switch with a
programming cable.
Address 0 is the default setting on delivery (the AS-Interface LED ashes alternately red/yellow).
10.3. Conguration in the AS-Interface safety monitor
(see operating instructions for the AS-Interface safety monitor)
10.3.1. Dual-channel conditionally dependent
The safety switch is congured in the AS-Interface safety monitor with the AS-Interface address set as follows,
for example:
ÌDual-channel conditionally dependent
ÌIndependent: In-1
Cat.
4

17
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
10.4. AS-Interface status messages
A dual LED (red/green) displays the colors red, green and yellow. The following table provides assistance with troubleshooting.
State
ASI LED Explanation
Green Normal operation
Red
No data exchange between master and slave
Cause:
- Master in STOP mode
- Slave not in LPS
- Slave with wrong IO/ID
Red/yellow
alternately ashing
No data exchange between master and slave
Cause: slave address=0
Red/green
alternately ashing Device fault in the slave.
Contact the manufacturer.
Red ashing
10.5. Safety in case of faults
The ASi power supply and the auxiliary voltage are reverse polarity protected.
10.6. Connection of guard locking control
10.6.1. Guard locking control by means of switching the auxiliary voltage
Auxiliary voltage,
24VDC
IMP
IMM
Auxiliary voltage,
0VDC
Fig. 4: Connection example: guard locking control by means of switching the auxiliary voltage
10.6.2. Guard locking control via ASi bit D0 (guard locking for process protection only)
Auxiliary voltage,
24VDC ASi bit D0
Auxiliary voltage,
0VDC
Fig. 5: Connection example of guard locking control via ASi bit D0 (guard locking for process protection only)

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
18 (translation of the original operating instructions) 2124662-07-05/23
11. Setup
11.1. LED displays
You will nd a detailed description of the signal functions in chapter 12. System status table on page 20.
LED Color
ASI Green/red
STATE Green
LOCK/DIA Yellow/red
11.2. Teaching-in 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.
The half-sequence is output during a teach-in operation. 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.
Important!
ÌThe teach-in operation can be performed only if the device does not have any internal fault.
ÌDevices in the condition as supplied remain in teach-in standby state until they have successfully
taught-in the rst actuator. Once taught-in, switches remain in the teach-in standby state for approx.
3min. after each switch-on.
ÌThe safety switch disables the code of the preceding device if teach-in is carried out for a new actuator.
Teach-in is not possible again immediately for this device 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-in when in the teach-in standby state,
this state is ended immediately and the switch changes to normal operation.
ÌThe actuator to be taught-in is not activated if it is within the actuating range for less than 30s.
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 LOCK/DIA LEDs acknowledges the successful teach-in operation.
Teach-in errors are indicated by the illumination of the red LOCK/DIA LED and a ashing code on the green STATE
LED (see chapter 12. System status table on page 20).
3. Switch off operating voltage (min. 3s).
¨The code of the actuator that was just taught-in is activated in the safety switch.
4. Switch on operating voltage.
¨The device operates normally.
LED
ASI
STATE
LOCK/DIA

19
2124662-07-05/23 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
EN
11.3. Functional check
WARNING
Danger of fatal injury as a result of faults in installation and the functional check.
ÌBefore carrying out the functional check, make sure that there are no persons in the danger zone.
ÌObserve the valid accident prevention regulations.
11.3.1. Mechanical function test
The actuator must slide easily into the actuating head. Close the guard several times to check the function. For devices with
mechanical release (emergency release or escape release), the correct function of the release must be checked as well.
11.3.2. Electrical function test
After installation and after any fault, the safety function must be fully checked. Proceed as follows:
1. Switch on operating voltage.
¨The machine must not start automatically.
¨The safety switch carries out a self-test. The green STATE LED then ashes at regular intervals.
2. Close all guards. In case of guard locking by solenoid force: activate guard locking.
¨The machine must not start automatically. It must not be possible to open the guard.
¨The green STATE LED and the yellow LOCK/DIA LED are illuminated continuously.
3. Enable operation in the control system.
¨It must not be possible to deactivate guard locking as long as operation is enabled.
4. Disable operation in the control system and deactivate guard locking.
¨The guard must remain locked until there is no longer any risk of injury.
¨It must not be possible to start the machine as long as guard locking is deactivated.
Repeat steps 2-4 for each guard.

Operating Instructions
Transponder-Coded Safety Switch CTP-L.-AS
20 (translation of the original operating instructions) 2124662-07-05/23
12. System status table
The dual LOCK/DIA LED displays the colors red and yellow. Depending on the state, both colors can ash alternately.
Operating mode
Actuator/door position
LED indicator
Output
State
STATE (green) LOCK/DIA (red) LOCK/DIA (yellow)
Normal operation
closed Normal operation, door closed and locked
closed
1x
in-
verse
Normal operation, door closed and not locked
open 1 x Normal operation, door open
Teach-in operation
(only unicode)
X 3 x Device in teach-in standby
closed 1 Hz Teach-in operation
X

Positive acknowledgment after completion of teach-in operation
Fault display
X 1 x
Error in the teach-in operation (only unicode)
Actuator removed from the actuating range prior to the end of the teach-in operation or
faulty actuator detected
X 3 x Read error
(e.g. actuator faulty)
X 5 x Disabled actuator detected
X X Internal error
Key to symbols
LED not illuminated
LED illuminated
1x
in-
verse
LED illuminated, briey goes off 1 x
1 Hz LED ashes at 1 Hz
3 x LED ashes three times, and this is then repeated
 LEDs ash alternately
X Any state
After the cause has been remedied, faults can generally be reset by opening and closing the guard. If the fault is still dis-
played afterward, use the reset function or briey interrupt the power supply. Contact the manufacturer if the fault could
not be reset after restarting.
Important!
If you do not nd the displayed device status in the system status table, this indicates an internal device
fault. In this case, you should contact the manufacturer.