EUCHNER CTM-LBI-BR Unicode Series User manual

EN
Operating Instructions
Transponder-Coded Safety Switch With Guard Locking
CTM-LBI-BR Unicode

Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
2(Translation of the original operating instructions) 2525462-01-01/20
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 .......................................................................... 6
4. Exclusion of liability and warranty ......................................................................... 7
5. General safety precautions ................................................................................... 7
6. Function............................................................................................................... 8
6.1. Bistable guard locking.....................................................................................................................8
6.2. Guard lock monitoring.....................................................................................................................8
6.3. Door monitoring output (OD)............................................................................................................8
6.4. Diagnostic output (OI)......................................................................................................................8
6.5. Guard locking monitoring output (OL)................................................................................................8
6.6. Guard locking on version CTM-LBI ...................................................................................................9
6.7. Switching states .............................................................................................................................9
7. Manual release................................................................................................... 10
7.1. Auxiliary release............................................................................................................................10
7.1.1. Actuating auxiliary release .............................................................................................10
8. Mounting............................................................................................................ 11
9. Electrical connection .......................................................................................... 12
9.1. Notes about .........................................................................................................................13
9.2. Safety in case of faults..................................................................................................................13
9.3. Fuse protection for power supply...................................................................................................13
9.4. Requirements for connecting cables...............................................................................................14
9.5. Maximum cable lengths.................................................................................................................15
9.6. Connector assignment, safety switch CTM-…-BR-…-SA-… with plug connector M12, 8-pin .................16
9.7. Connector assignment, Y-distributor for series connection without BR evaluation unit.........................17
9.8. Connector assignment, Y-distributor for series connection to a BR evaluation unit..............................18
9.9. Connection of several devices in a switch chain without BR evaluation unit ........................................19
9.10. Notes on operation with safe control systems.................................................................................21

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2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
EN
10. Setup ................................................................................................................. 22
10.1. LED displays ................................................................................................................................22
10.2. Teach-in function for actuator (only for unicode evaluation) ...............................................................22
10.2.1. Actuator teach-in...........................................................................................................22
10.3. Functional check...........................................................................................................................23
10.3.1. Mechanical function test ................................................................................................23
10.3.2. Electrical function test...................................................................................................23
11. System status table ............................................................................................ 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 A-B-A1-A1-….........................................................................................30
12.4.1. Dimension drawing for actuator A-B-A1-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-LBI-BR
4(Translation of the original operating instructions) 2525462-01-01/20
1. About this document
1.1. Scope
These operating instructions are valid for all CTM-LBI-BR… 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
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 CTM
(2525460) Basic information for safe setup and service
Operating instructions
(2525462) (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
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
EN
2. Correct use
Safety switches series CTM-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 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 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
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.
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.
A maximum of 20 safety switches are allowed to be operated in a switch chain.
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 CTM components
Safety switch
Actuator
A-B-A1-…
CTM-… Unicode
Key to symbols Combination possible

Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
6(Translation of the original operating instructions) 2525462-01-01/20
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 6.7. Switching states on page 9):
- The safety outputs are switched off when guard locking is released (monitoring of the locking element).
- 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 (faulty closure protection).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 12. Technical data on page 26).
Control 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 of guard locking control is determined by the device PFHDint. and by the external control (e.g. PFHDext. of
the standstill monitor), but cannot be higher than PLd.
PFHDint.
(internal electronic)
Guardlocking Device
PFHDext.
(e.g. standstill
monitor) (locking mean)
Safety 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 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).

7
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
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 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 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. 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 CTM-LBI-BR
8(Translation of the original operating instructions) 2525462-01-01/20
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.
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.
OD is set when a permissible code is detected. Guard locking is activated automatically if no
voltage is present at IMP. The safety outputs are switched on when guard locking is active.
The safety outputs and the monitoring output (OL) are switched off when the guard 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 often as required without activating the guard lock-
ing. Guard locking is released via control input IMP. Also see chapter 6.6. Guard locking on version CTM-LBI on page 9.
6.2. 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. Door monitoring output (OD)
The door monitoring output is switched on as soon as the actuator is inserted into the switch (state: guard closed and not
locked). The door monitoring output also remains switched on when guard locking is active.
6.4. Diagnostic output (OI)
Evaluation via the BR evaluation unit.
The diagnostic output is switched on in the event of a fault (switch-on condition as for DIA LED).
6.5. Guard locking monitoring output (OL)
Evaluation via the BR evaluation unit.
The guard locking monitoring output is switched on when guard locking is active.
Transponder-coded
actuator
Safety switch

9
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
EN
6.6. Guard locking on version CTM-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 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.
6.7. 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 open
Betätiger
Schalter
Betätiger
Schalter
Betätiger
Schalter
Control input IMP off on off = Guard locking is activated imme-
diately on closing
on = Guard locking remains released
on closing
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 CTM-LBI-BR
10 (Translation of the original operating instructions) 2525462-01-01/20
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.
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 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 re-
lease

11
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
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 actuator A-B-A1-A1-… on
page 30).
ÌObserve the tightening torque for fastening the switch and the actuator (2,9Nm max.).
ÌThe 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-LBI-BR
12 (Translation of the original operating instructions) 2525462-01-01/20
9. Electrical connection
The following connection options are available:
ÌSeparate operation
ÌSeries connection with Y-distributors
ÌSeries connection, e.g. with wiring in the control cabinet.
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).
ÌPlease 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 man-
ufacturer.
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.

13
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
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 applications as per the requirements 1), a connecting 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).
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 current required for the
outputs. The following rules apply:
Max. current consumption of an individual switch Imax
Imax = IUB + IFO1A+FO1B + IOL + 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)
Max. current consumption of a switch chain ΣImax
ΣImax = IFO1A+FO1B + nx(IUB + IOL + IOD)
n = Number of connected switches

Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
14 (Translation of the original operating instructions) 2525462-01-01/20
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-…-BR-…-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

15
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
EN
9.5. Maximum cable lengths
Switch chains are permitted up to a maximum overall cable length of 70m taking into account the voltage drop as a result
of the cable resistance (see table below with example data and case example).
SPS
PLC
l1l2
l
max
=200 m
ln
umin = 24 V
5 x 0,34 mm2 5 x 0,34 mm25 x 0,34 mm2
CTM-LBI-BR # n CTM-LBI-BR # n-1 CTM-LBI-BR # 1
iout
n
Max. number of switches
IOD (mA)
Possible output current per channel FO1A/FO1B
l1(m)
Max. cable length from the last switch to the
control system
0.34 mm²
1
10
70
25
50
100
150 60
2
10
20
25
50
100
150
3
10
20
25
50
100
150
Contact EUCHNER in the following cases:
ÌIf you connect more than 3 switches in series.
ÌIf you plan to use a different cable design (cross-section, material, etc.).

Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
16 (Translation of the original operating instructions) 2525462-01-01/20
9.6. Connector assignment, safety switch CTM-…-BR-…-SA-… with plug connector M12,
8-pin
Wiring diagram C
Plug connector
(view of connection side) Pin Designation Function
Conductor coloring
of connecting ca-
ble 1)
1 x M12
8
5
6
7
2
4
3
1
1 FI1B Enable input, channel 2 WH
2 UB Operating voltage, 24VDC BN
3 FO1A Safety output, channel 1 GN
4 FO1B Safety output, channel 2 YE
5 OD/C Door monitoring output/communication GY
6 FI1A Enable input, channel 1 PK
7 0V Operating voltage, 0 V BU
8 IMP Control input of guard locking solenoid RD
1) Only for standard EUCHNER connecting cable.

17
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
EN
9.7. Connector assignment, Y-distributor for series connection without BR evaluation unit
Important!
All guard locking solenoids are always
controlled simultaneously on the use of
Y-distributors in a series connection with-
out BR evaluation unit.
Pin Function
X2.1 UB
X2.2 FO1A
X2.3 0V
X2.4 FO1B
X2.5 RST *
* Solenoid control input
M12x1
max. 45
Ø 14,5
Strapping plug 097645
4-pin, plug
(gure similar)
Y-distributor with connecting
cable
111696 or 112395
Socket
Pin Socket
Pin Function
X3.1 UB
X3.2 FI1A
X3.3 0V
X3.4 FI1B
X3.5 RST *
12
12
45°
15,1
485
6
312
7
35,1
20,5
1
2
4
5
33
4
2
1
5
Mx1
Ø 14,6
Mx1
( )
Y-distributor
097627
Socket
Connector assignment of safety
switch CTM-LBI-BR (8-pin plug)
and Y-distributor (8-pin socket)
Pin Function
X1.1 FI1B
X1.2 UB
X1.3 FO1A
X1.4 FO1B
X1.5 OD
X1.6 FI1A
X1.7 0V
X1.8 RST *
* Solenoid control input
Pin Socket
M 12 x1
44
45 41
15
M 12 x1
15 15
M 12 x1
33
A
B
4
8
5
6
3
1
2
7
1
2
4
5
33
4
2
1
5
Length l
Order no. Length
l [mm]
111696 200
112395 1,000
Pin Function
X2.1 UB
X2.2 FO1A
X2.3 0V
X2.4 FO1B
X2.5 RST *
* Solenoid control input
Pin Function
X3.1 UB
X3.2 FI1A
X3.3 0V
X3.4 FI1B
X3.5 RST *

Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
18 (Translation of the original operating instructions) 2525462-01-01/20
9.8. Connector assignment, Y-distributor for series connection to a BR evaluation unit
M12x1
max. 45
Ø 14,5
Strapping plug 097645
4-pin, plug
(gure similar)
Y-distributor with connecting
cable
158192 or 158193
Socket
Pin Socket
Pin Function
X2.1 UB
X2.2 FO1A
X2.3 0V
X2.4 FO1B
X2.5 OD/C
Pin Function
X3.1 UB
X3.2 FI1A
X3.3 0V
X3.4 FI1B
X3.5 OD/C
46
36
14,5
M12x1
14,5
M12x1
14,5
M12x1
45
15
45°
6
7
1
2 4
3
8 5
3 4
5 11 5
4 3 22
Y-distributor
157913
Socket
Connector assignment of safety
switch CTM-LBI-BR (8-pin plug)
and Y-distributor (8-pin socket)
Pin Function
X1.1 FI1B
X1.2 UB
X1.3 FO1A
X1.4 FO1B
X1.5 OD/C
X1.6 FI1A
X1.7 0V
X1.8 nc
Pin Socket
15
45
42 44
14,5
18
M12x1
M12x1
14,5
M12
x1
14
45°
8
2 3
1
4
6
5
7
1
2
4
5
33
4
2
1
5
Length l
Order no. Length
l [mm]
158192 200
158193 1,000
Pin Function
X2.1 UB
X2.2 FO1A
X2.3 0V
X2.4 FO1B
X2.5 OD/C
Pin Function
X3.1 UB
X3.2 FI1A
X3.3 0V
X3.4 FI1B
X3.5 OD/C

19
2525462-01-01/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
EN
9.9. Connection of several devices in a switch chain without BR evaluation unit
Important!
ÌA BR switch chain may contain a maximum of 20 safety switches.
ÌThe example shows only an excerpt that is relevant for connection of the CTM 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 of your switch in the search box. You will nd all available connec-
tion examples for the device in Downloads.
ÌMake sure you use the correct Y-distributor. See chapter 9.7. Connector assignment, Y-distributor
for series connection without BR evaluation unit on page 17
The series connection is shown here based on the example of the version with plug connectors M12. The switches are con-
nected one behind the other with the aid of pre-assembled connecting cables and Y-distributors. If a safety door is opened or
if a fault occurs on one of the switches, the system shuts down the machine. A higher-level control system cannot, however,
detect which safety door is open or on which switch a fault has occurred with this connection technology.
The series connection can also be realized via additional terminals in a control cabinet.
The safety outputs are permanently assigned to the respective safety inputs of the downstream switch. FO1A must be routed
to FI1A and FO1B to FI1B. If the connections are interchanged (e.g. FO1A to FI1B), the device will switch to the fault state.

Operating Instructions
Transponder-Coded Safety Switch CTM-LBI-BR
20 (Translation of the original operating instructions) 2525462-01-01/20
Y-distributor
Bridging plug
1 2 4
Safety Outputs
Door
Monitoring
Safety Inputs
Read Head
Actuator
Monitoring Output
FO1A
3
FO1B
4
FI1A
6
FI1B
1
UB
2
IMP
8
0 V
7
OD/C
5
CTM
Y-distributor
Safety Outputs
Door
Monitoring
Safety Inputs
Read Head
Actuator
Monitoring Output
FO1A
3
FO1B
4
FI1A
6
FI1B
1
UB
2
IMP
8
0 V
7
OD/C
5
CTM
Y-distributor
Safety Outputs
Door
Monitoring
Safety Inputs
Read Head
Actuator
Monitoring Output
FO1A
3
FO1B
4
FI1A
6
FI1B
1
UB
2
IMP
8
0 V
7
OD/C
5
CTM
Connected load
FI1B FI1A RST 0V UB UB FIOA FO1B OD/C
UB:1 0V UB:3 RST:5 FI1A:2 FI1B:4
UB:1
0V UB:3
RST:5
FO1A:2
FO1B:4
FI1B FI1A RST 0V UB UB FIOA FO1B OD/C
UB:1 0V UB:3 RST:5 FI1A:2 FI1B:4
UB:1
0V UB:3
RST:5
FO1A:2
FO1B:4
FI1B FI1A RST 0V UB UB FIOA FO1B OD/C
UB:1 0V UB:3 RST:5 FI1A:2 FI1B:4
UB:1
0V UB:3
RST:5
FO1A:2
FO1B:4
1 2
-F1
13 14
-S1
1 2
-F2
24V DC
0 V
24V DC
0 V
Figure 1: Connection example for series connection