EUCHNER CTM-CBI-BP User manual

EN
Operating Instructions
Transponder-Coded Safety Switch With Guard Locking
CTM-CBI-BP Unicode/Multicode

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
2(Translation of the original operating instructions) 2541786-01-10/20
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 .......................................................................... 7
4. Exclusion of liability and warranty ......................................................................... 8
5. General safety precautions ................................................................................... 8
6. Function............................................................................................................... 9
6.1. Bistable guard locking.....................................................................................................................9
6.2. Guard lock monitoring.....................................................................................................................9
6.3. Connection OD/C ...........................................................................................................................9
6.4. Door position monitoring output/bit OD ............................................................................................9
6.5. Communication connection C .........................................................................................................9
6.6. Diagnostics monitoring output/bit OI ..............................................................................................10
6.7. Guard lock monitoring output/bit OL...............................................................................................10
6.8. Safety output status output/bit OM.................................................................................................10
6.9. Locking element status output/bit OLS...........................................................................................10
6.10. Guard locking on version CTM-CBI .................................................................................................10
6.11. Switching states ...........................................................................................................................11
7. Manual release................................................................................................... 12
7.1. Auxiliary release............................................................................................................................12
7.1.1. Actuating auxiliary release .............................................................................................12
8. Mounting............................................................................................................ 13
9. Electrical connection .......................................................................................... 14
9.1. Notes about .........................................................................................................................15
9.2. Safety in case of faults..................................................................................................................15
9.3. Fuse protection for power supply...................................................................................................15
9.4. Requirements for connecting cables...............................................................................................16
9.5. Connector assignment of safety switch CTM-…-BP-…-SA-… with plug connector M12, 8-pin...............17
9.6. Using communication data ............................................................................................................17
9.6.1. Connection to a BR/IO-Link Gateway...............................................................................17
9.6.2. Connection to safety relay ESM-CB with integrated BR/IO-Link Gateway.............................17
9.6.3. Overview of the communication data ..............................................................................17
9.6.4. Cyclical data (process data)...........................................................................................18
9.6.5. Acyclical data (device data and events)...........................................................................19

3
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
9.7. Notes on operation with safe control systems.................................................................................19
10. Setup ................................................................................................................. 20
10.1. Device conguration and teach-in operation ....................................................................................20
10.1.1. Conguring actuator......................................................................................................20
10.2. LED displays ................................................................................................................................20
10.3. Functional check...........................................................................................................................21
10.3.1. Mechanical function test ................................................................................................21
10.3.2. Electrical function test...................................................................................................21
10.4. Factory reset................................................................................................................................21
11. System status tables........................................................................................... 22
11.1. Guard lock monitoring activated.....................................................................................................22
11.2. Guard lock monitoring deactivated .................................................................................................24
12. Technical data .................................................................................................... 26
12.1. Technical data for safety switch CTM-LBI-BR....................................................................................26
12.1.1. Typical system times.....................................................................................................27
12.2. Radio frequency approvals.............................................................................................................28
12.3. Dimension drawing for safety switch CTM… ...................................................................................29
12.4. Technical data for actuator S-B-0.-A1… ..........................................................................................30
12.4.1. Dimension drawing for S-B-0.-A1... .................................................................................30
13. Ordering information and accessories................................................................. 31
14. Inspection and service ........................................................................................ 31
15. Service .............................................................................................................. 31
16. Declaration of conformity ................................................................................... 32

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
4(Translation of the original operating instructions) 2541786-01-10/20
1. About this document
1.1. Scope
These operating instructions are valid for all CTM-CBI-BP… from version V1.0.0. These operating instructions, the document
Safety information and any enclosed data sheet form the complete user information for your device.
Series Guard lock monitoring types Product versions
CTM LBI from V1.0.0
IBI
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
Personnel protection
Process protection
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 information for safe setup and service
Operating instructions
(2541786) (this document)
Internet
www
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.

5
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
2. Correct use
Safety switches series CTM-C.-… are interlocking 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.
The device can be congured with the aid of the function actuators. Guard lock monitoring is switched on or off depending
on the taught-in function actuator. More detailed information about the possible settings is available in the chapter 10.1.
Device conguration and teach-in operation on page 20.
With active guard lock monitoring, the following applies:
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.
With inactive guard lock monitoring, the following applies:
In combination with a movable guard and the machine control, this safety component prevents dangerous machine
functions from occurring while the guard is open. A stop command is triggered if the guard is opened during the
dangerous machine function. With inactive guard lock monitoring, guard locking must be used only for process
protection.
This means:
ÌStarting commands that cause a dangerous machine function must become active only when the guard is
closed.
ÌOpening the guard triggers a stop command.
ÌClosing a guard must not cause automatic starting of a dangerous machine function. A separate start command
must be issued. For exceptions, refer to ENISO12100 or relevant C-standards.
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 actuators and the related con-
nection components from EUCHNER. On the use of different actuators or other connection components, EUCHNER provides
no warranty for safe function.
Connection of several devices in a BR switch chain is permitted only using devices intended for series connection in a BR
switch chain. Check this in the instructions of the device in question.
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.

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
6(Translation of the original operating instructions) 2541786-01-10/20
Table 1: Possible combinations for CTM components
Safety switch
Actuator
S-B-0.-A1...
CTM-… Unicode/Multicode
Key to symbols Combination possible

7
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
3. Description of the safety function
Devices from this series feature the following safety functions:
With active guard lock monitoring, the following applies:
Monitoring of guard locking and the position of the guard
(interlocking device with guard locking according to ENISO14119)
ÌSafety function (see chapter 6.11. Switching states on page 11):
- The safety outputs are switched off when guard locking is released (monitoring of the locking element).
Important: This applies only if guard lock monitoring is active!
- The safety outputs are switched off when the guard is open.
- Guard locking can be activated only when the bolt tongue is located in the locking module (prevention of inad-
vertent locking position (faulty closure protection)).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 12. Technical data on page 26).
Control of guard locking
ÌSafety function
If the device is used as guard locking for personnel protection, control of guard locking must be regarded as a
safety function.
The safety level of guard locking control is determined by the device PFHDint. and by the external control (e.g.
PFHDext. of the standstill monitor).
PFHDext. PFHDint.
(internal electronic)
Guardlocking Device
(e.g. standstill
monitor) (locking mean)
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 12. Technical data on page 26).
Releasing the guard locking
ÌSafety functions
- Guard locking remains activated until IMP requests releasing the guard locking.
The decisive criterion for a possible request to deactivate guard locking is a voltage of at least 5V between the
inputs IMP and 0V or between IMP and IMM.
The external control system must recognize and react to short circuits on these control signals. Fault exclusion,
e.g. by laying the cables with protection, can be considered as an alternative.
Voltage disconnection must apply to the machine (control system and device).
With inactive guard lock monitoring, the following applies:
Monitoring of the guard position
(interlocking device according to ENISO14119)
ÌSafety function: The safety outputs are switched off when the guard is open (see chapter 6. Function on page
9).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 12. Technical data on page 26).

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
8(Translation of the original operating instructions) 2541786-01-10/20
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
Ìafter any reconguration of the device
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 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 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. You can download the operating
instructions from www.euchner.com.

9
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
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 (multicode) 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 assign-
ment 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 wheth-
er 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 operating
distance is reached, power is supplied to the actuator by the switch and data are transferred.
Door position monitoring output/bit OD is set when a permissible code is detected. Guard
locking is activated automatically if no voltage is present at IMP. The following switch-on
conditions apply to the safety outputs FO1A and FO1B:
Conguration of guard lock monitoring Active (ON) Inactive (OFF)
No fault in the device TRUE (ON) TRUE (ON)
Guard closed TRUE (ON) TRUE (ON)
Guard locking active TRUE (ON) Not relevant
Guard lock monitoring output/bit OL is switched off when guard locking is released.
In the event of a fault in the safety switch, the safety outputs are switched off and the 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. Bistable guard locking
Guard locking of the switch functions according to the bistable principle. This means that guard locking is kept in its last
position if the power supply is interrupted or when the machine is switched off for servicing, for example. As a result, the
safety door is either constantly locked or it can be closed and opened as required without activating the guard locking.
Guard locking is released via control input IMP. Also see chapter 6.10. Guard locking on version CTM-CBI on page 10.
6.2. Guard lock monitoring
(only with active guard lock 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.
6.3. Connection OD/C
The device has a connection that can be used either as a door monitoring output or as a communication connection to a
BR/IO-Link Gateway. During starting, the device automatically detects whether it is connected to an input on a BR/IO-Link
Gateway. In this case, connection OD/C operates as communication output C.
6.4. Door position monitoring output/bit OD
Door position monitoring output/bit OD is switched on as soon as the actuator is inserted into the switch (state: guard closed
and not locked). Door position monitoring output/bit OD also remains switched on when guard locking is active.
6.5. Communication connection C
The communication connection is used for information exchange with a BR/IO-Link Gateway. The switch delivers process
data determined cyclically. Acyclical data can also be sent by means of specically polling by the evaluation unit. You will
nd an overview of the communication data in chapter 9.10. Connection to a BR/IO-Link Gateway.
Transponder-coded
actuator
Safety switch

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
10 (Translation of the original operating instructions) 2541786-01-10/20
6.6. Diagnostics monitoring output/bit OI
The diagnostic output is switched on in the event of a fault (switch-on condition as for DIA LED).
6.7. Guard lock monitoring output/bit OL
The guard lock monitoring output is switched on when guard locking is active.
6.8. Safety output status output/bit OM
Evaluation via the BR evaluation unit.
This status output is switched on if the safety outputs of all preceding devices in the series connection are switched on.
6.9. Locking element status output/bit OLS
Evaluation via the BR evaluation unit.
This status output is switched on if the locking element is stuck and guard locking therefore cannot be activated/deactivated.
6.10. Guard locking on version CTM-CBI
(guard locking by spring force and released by power-ON)
Activating guard locking: close guard; no voltage at control input IMP or data bit switched off.
Releasing guard locking: apply voltage to control input IMP or switch on data bit.
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 open when the power supply is interrupted and is then closed, guard locking remains released. This prevents
people from being locked in unintentionally.
Important!
Malfunctions due to incorrect use.
ÌThe actuator must not be under tensile stress during release.
ÌVery strong jolts or vibration can cause the guard locking state to change unintentionally. This gen-
erally applies when the switch is electrically isolated.
- The switch must not be used as a mechanical end stop.
- In case of heavy doors, ensure that the impact energy is cushioned on closing.

11
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
6.11. 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 Guard closed and not locked Guard opening Guard open
Control input IMP off on on off = Guard locking is
activated immediately on
closing
on = Guard locking remains
released on closing
Safety outputs FO1A and FO1B on off on off off
Guard lock monitoring output/
bit OL
on off off off
Door position monitoring
output/bit OD
on on off off

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
12 (Translation of the original operating instructions) 2541786-01-10/20
7. Manual release
Important!
ÌAll release functions latch 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
In the event of malfunctions, the guard locking can be released with the auxiliary release irre-
spective of the state of the solenoid.
ÌWhen release monitoring is active, the system enters into a latching fault when the auxiliary
release is actuated. See System status tables, Signal sequence incorrect status (DIA red,
Lock ashes 1 time).
ÌThe safety outputs are switched off when the auxiliary release is actuated.
Guard lock monitoring output/bit OL is switched off; door position monitoring output/bit OD
can assume an undened state. Open the guard and close it again after resetting the auxiliary
release. The device will then operate normally again.
7.1.1. Actuating auxiliary release
1. Remove seal label or make a hole.
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.
ÌReset the auxiliary release and cover it with a new seal label after use.
ÌLoss of the release function due to mounting errors or damage during mounting.
ÌCheck the release function every time after mounting.
ÌAfter manual release, the solenoid must be energized briey to re-establish the dened state.
ÌPlease observe the notes on any enclosed data sheets.
ÌThe auxiliary release must be reset at the control system level, e.g. by means of a plausibili-
ty check (status of the safety outputs does not match the guard locking control signal). See
ENISO14119:2013, sec. 5.7.5.4.
ÌThe auxiliary release is not a safety function.
ÌThe machine manufacturer must select and use a suitable release (escape release, emergency
release, etc.) for a specic application. A hazard assessment is required for this purpose. It may
be necessary to take specications from a product standard into account.
ÌThe correct function must be checked at regular intervals.
ÌLoss of the release function due to mounting errors or damage during mounting. Check the re-
lease function every time after mounting.
ÌPlease observe the notes on any enclosed data sheets.
Auxiliary
release

13
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
8. 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 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 mounting the safety
switch and the actuator.
ÌProtect the switch against damage, as well as against penetrating foreign objects such as swarf,
sand and blasting shot, etc.
ÌObserve the min. door radii (see chapter 12.4.1. Dimension drawing for S-B-0.-A1... on page 30).
ÌObserve the maximum permissible angle between switch and actuator (max. 5°).
ÌObserve the tightening torque for fastening the switch and the actuator (max. 2.9Nm).
ÌThe rear of the switch and the actuator’s plate must lie ush on the mounting surface.
ÌActuator and safety switch must be mounted such that the actuator is correctly inserted into the
switch when the guard is closed.

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
14 (Translation of the original operating instructions) 2541786-01-10/20
9. Electrical connection
The following connection options are available:
ÌConnection to a control system
ÌConnection to safety relay ESM-CB with integrated BR/IO-Link Gateway
ÌConnection to a BR/IO-Link Gateway GWY-CB-1-BR-IO.
WARNING
In the event of a fault, loss of the safety function due to incorrect connection.
ÌTo ensure safety, both safety outputs must always be evaluated.
ÌMonitoring outputs must not be used as safety outputs.
ÌLay the connecting cables with protection to prevent the risk of short circuits.
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection.
ÌDo not use a control system with pulsing or switch off the pulsing function in your control system.
The device generates its own test pulses on the safety outputs. A downstream control system
must tolerate these test pulses, which may have a length of up to 300µs.
The test pulses are output only with the safety outputs switched off during device start.
Depending on the inertia of the downstream device (control system, relay, etc.), this can lead to
short switching processes.
ÌThe inputs on a connected evaluation unit 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).
ÌPay 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 the operating voltage is applied (e.g. green STATE LED
does not ash), the safety switch must be returned to the manufacturer.

15
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
9.1. 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 application as per the requirements 1), a connecting cable listed under the UL cat-
egory 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).
9.2. Safety in case of faults
ÌThe operating voltage UB and the control input 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.
9.3. Fuse protection for power supply
The power supply must be provided with fuse protection depending on the number of switches and the current required for
the outputs. The following rules apply:
Max. current consumption Imax
Imax = IUB + IFO1A+FO1B + IOD + IIMP
IUB = Switch operating current (max. 500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)

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
16 (Translation of the original operating instructions) 2541786-01-10/20
9.4. Requirements for connecting cables
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connecting cables.
ÌUse connection components and connecting cables from EUCHNER.
ÌOn the use 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 connecting cables:
For safety switch CTM-…-BP-…-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 0.34mm²

17
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
9.5. Connector assignment of safety switch CTM-…-BP-…-SA-… with plug connector M12,
8-pin
Wiring diagram
Plug connector
(view of connection side) Pin Designation Function
Conductor coloring
of connecting cable
1)
1 x M12
8
5
6
7
2
4
3
1
1 IMP Control input of guard locking solenoid 24VDC WH
2 UB Operating voltage, 24VDC BN
3 FO1A Safety output, channel 1 GN
4 FO1B Safety output, channel 2 YE
5 OI Diagnostics monitoring output GY
6 OD/C Door monitoring output/communication PK
7 OL Guard lock monitoring output BU
8 0 V 0 V RD
1) Only for standard EUCHNERconnecting cable.
9.6. Using communication data
A device with a gateway function is required in order use the device’s communication data and forward them to a higher-level
bus system. The following devices are suitable:
ÌGWY-CB-1-BR-IO (BR/IO-Link Gateway)
ÌESM-CB (safety relay with integrated BR/IO-Link Gateway)
9.6.1. Connection to a BR/IO-Link Gateway
The OD/C connection of the device allows the diagnostic line to be connected to the Gateway. The OD/C connection rep-
resents a non-safety-related communication channel between the Gateway and the connected devices.
The Gateway is an IO-Link device. Communication via IO-Link offers cyclical (process data) and acyclical (device data and
events) data exchange. See chapter 9.6.3. Overview of the communication data on page 17
The following information is transmitted:
ÌDevice information of the Gateway (electronic rating plate, states of the device)
ÌState information about connected BR/BP switches
You will nd further information in the operating instructions for your BR/IO-Link Gateway.
9.6.2. Connection to safety relay ESM-CB with integrated BR/IO-Link Gateway
The safety relay ESM-CB features an integrated IO-Link Gateway. In addition to functioning as an IO-Link device (see 9.6.1.
Connection to a BR/IO-Link Gateway on page 17), the device can be used for connecting two monitored single- or du-
al-channel sensor circuits. The sensor circuits evaluate various signaling devices:
ÌSensor circuit S1 with short circuit detection; suitable for single- or dual-channel safety sensors
ÌSensor circuit S2 suitable for OSSD signals; short circuit detection by signaling device
When at least one sensor circuit is interrupted, the safety relay initiates the safe state. Different relay stating behaviors and
various monitoring functions are possible.
The device’s safety outputs FO1A and FO1B are routed to the OSSD inputs of the safety relay.
The OD/C connection of the device allows the diagnostic line to be connected to the Gateway.
You will nd further information in the operating instructions for your safety relay with integrated BR/IO-Link Gateway.
9.6.3. Overview of the communication data
The switches transmit both process data, which are continuously transmitted to the evaluation unit (cyclical data), and data
that can be polled specically as needed (acyclical data). For further information on connection and on the communication
data, refer to the operating instructions for your BR evaluation unit. The integrated Gateway is used to implement the data
of a BR switch chain or a BP switch on an IO-Link slave.

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
18 (Translation of the original operating instructions) 2541786-01-10/20
9.6.4. Cyclical data (process data)
Table 2: Cyclical data (process data)
Data Meaning
Guard position OD This signal indicates whether the guard is open or closed.
Safety outputs switched OM This signal indicates whether the safety outputs are switched on. The guard must be closed and all other conditions must
be met for this purpose. The safety outputs of all preceding devices in the series connection are switched on, for example.
Message pending OI This signal indicates a pending message. You can retrieve it via the acyclical data.
Status of guard locking OL This signal indicates whether guard locking is active or inactive.
Status of the locking element OLS This status output is switched on if the locking element is stuck and guard locking therefore cannot be activated/
deactivated.

19
2541786-01-10/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
EN
9.6.5. Acyclical data (device data and events)
Table 3: Acyclical data
Data Meaning
Sensor order number, sensor version This function reads the order number and the switch version. The safety switch provides all the data you need to order a
replacement.
Current diagnostic code If OI indicates a pending message, the specic error can be read in detail via this code. This lets you know what to do to
rectify faults promptly.
Stored diagnostic code The sensor always saves the penultimate diagnostic signal, allowing you to identify a pending message even retroactively.
Code of current actuator This function polls the currently read actuator code.
ÌOn unicode switches: Any tampering attempt can be identied if this code differs from the taught-in actuator code.
ÌOn multicode switches: The current actuator code is compared with one or more codes stored in the control system.
Multiple actuators can thereby be permitted in the control system. In combination with the enable signal function (see
below), the control system can turn off the safety equipment if the comparison results are implausible.
Code of blocked actuator Function for polling the actuator code in the blockedmemory.
ÌOn unicode switches: This code can be displayed to the machine setter to aid teaching-in a new actuator during service
and setup.
Code of taught-in actuator This function polls the currently taught-in actuator code.
ÌOn unicode switches: Any tampering attempt can be identied if this code differs from the current actuator code.
Voltage This indicates the voltage value currently applied to the CTM. Preventive service can be requested if the voltage falls below
a certain value, for example.
Temperature This indicates the temperature currently measured in the CTM. Preventive service can be requested if the values are too
high.
Number of switching cycles Information about the cumulative switching cycles.
Log-data readout The sensor internally logs relevant events. The log data can be read.
9.7. 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.
ÌA pulsed power supply must not be used for UB. Tap the supply voltage directly from the power supply unit. If the power
supply is connected to a terminal of a safe control system, this output must provide sufcient electrical current.
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, refer to chapter 12. Technical
data on page 26.
A detailed example of connecting and setting the parameters of the control system is available for many devices at
www.euchner.com, in the area Service/Downloads/Applications. The features of the respective device are dealt with there
in greater detail.

Operating Instructions
Transponder-Coded Safety Switch CTM-CBI-BP
20 (Translation of the original operating instructions) 2541786-01-10/20
10. Setup
10.1. Device conguration and teach-in operation
Guard lock monitoring of the device can be congured using the function actuators.
The device must be congured and the actuator must be allocated to the safety switch using a teach-in function before the
system forms a functional unit.
Actuator Function
S-B-08-A1-A1-165895 Guard lock monitoring is active
S-B-09-A1-A1-165896 Guard lock monitoring is deactivated
Prerequisite: The device is in the condition as supplied. A factory reset must be performed before a precongured device
can be recongured (see chapter 10.4. Factory reset on page 21).
The safety outputs are switched off during the conguration process, i.e. the system is in a safe state.
The process is automatic.
10.1.1. Conguring actuator
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 11. System status tables on page 22).
3. Switch off operating voltage UB (min. 3s).
¨The code of the actuator that was just taught-in is activated in the safety switch.
4. Switch on operating voltage UB.
¨The device operates normally.
10.2. LED displays
You will nd a detailed description of the signal functions in chapter 11. System status tables on page 22.
LED Color
STATE green
LOCK yellow
DIA red
LED
STATE
LOCK
DIA