EUCHNER ESM-CB Operating Instructions Manual

Operating Instructions

Safety Relay with IO-Link

for emergency stop, safety door and light grid monitoring

ESM-CB

EN

Operating Instructions
Safety Relay with IO-Link ESM-CB

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

3.1. Monitoring of sensor circuits ...............................................................................................6

3.2. Starting behavior ............................................................................................................................6

4. Exclusion of liability and warranty ......................................................................... 7

5. General safety precautions ................................................................................... 7

6. Function ............................................................................................................... 8

6.1. IO-Link communication and functions ................................................................................................8

6.1.1. Enabling from the non-safety-related control system .............................................................. 8

6.1.2. Chain reset ........................................................................................................................8

6.2. Block diagram ................................................................................................................................9

6.2.1. Insulation coordination ........................................................................................................9

6.3. Communication and functions with BR safety switches .....................................................................10

6.3.1. Diagnostic data................................................................................................................10

6.3.2. Hot plugging – replacing a BR safety switch .......................................................................10

6.4. Function of monitoring output OM ..................................................................................................10

7. Mounting ............................................................................................................ 11

8. Electrical connection .......................................................................................... 12

8.1. Terminal assignment .....................................................................................................................13

8.2. Signaling device connection variants ..............................................................................................14

8.2.1. Sensor circuit S1 ..................................................................................................14

8.2.2. Sensor circuit S2 .............................................................................................................14

8.3. Start circuit and feedback loop connection variants .........................................................................15

8.4. Notes about ..........................................................................................................................16

9. Application example ........................................................................................... 16

9.1. Dual-channel monitoring of emergency-stop pushbutton and safety switch chain with IO-Link ...............16

10. Setup ................................................................................................................. 18

11. Calculating the power dissipation ........................................................................ 19

12. Function test ...................................................................................................... 20

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Operating Instructions

Safety Relay with IO-Link ESM-CB

13. Device diagnostics .............................................................................................. 21

13.1. Diagnostics via LED displays .........................................................................................................21

13.1.1. General states .................................................................................................................21

13.1.2. Error messages ...............................................................................................................22

14. IO-Link communication and diagnostic data ......................................................... 23

14.1. Device description le ...................................................................................................................23

14.1.1. Overview of IODDs ...........................................................................................................23

14.1.2. Use of the various IODDs ..................................................................................................23

14.2. Process-data structure and addressing ........................................................................................... 24

14.3. Cyclical data (process data) ...........................................................................................................24

14.3.1. Input data ........................................................................................................................24

14.3.2. General description of the process data ............................................................................25

14.3.3. Output data .....................................................................................................................25

14.4. Acyclical data (device data and events) ...........................................................................................26

14.4.1. Writing and reading services .............................................................................................26

14.5. Communication with BR devices .....................................................................................................28

14.6. Error table for BR devices .............................................................................................................29

15. Technical data .................................................................................................... 30

15.1. Safety relay ESM-CB .....................................................................................................................30

15.2. Function and time diagrams ...........................................................................................................35

15.2.1. Time diagram for automatic start ......................................................................................35

15.2.2. Time diagram for manual, monitored start .........................................................................35

15.3. Derating .......................................................................................................................................36

15.3.1. Vertical or horizontal installation orientation ........................................................................ 36

15.4. Load curve ...................................................................................................................................36

15.4.1. Resistive and inductive loads ............................................................................................36

16. Ordering information and accessories ................................................................. 37

17. Inspection and service ........................................................................................ 37

18. Service .............................................................................................................. 38

19. Declaration of conformity ................................................................................... 39

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EN

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Operating Instructions
Safety Relay with IO-Link ESM-CB

1. About this document

1.1. Scope

This document is valid for:

Ì Safety Relay with IO-Link for emergency stop, safety door and light grid monitoring ESM-CB

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. These persons must also be familiar with the safety concept underlying
this customer-specic solution.

1.3. Key to symbols

Symbol/depiction Meaning

Printed document

www

DANGER

WARNING

Document is available for download at www.euchner.com

Document on CD

Safety precautions

Danger of death or severe injuries
Warning about possible injuries
Caution slight injuries possible

CAUTION

Notice about possible device damage

NOTICE

Important!

Tip Useful information

Important information

1.4. Supplementary documents

The overall documentation for this device consists of the following documents:

Document title
(document number)

Safety information and
maintenance for safety
relay ESM-CB
(2522723)

Operating instructions for
safety relay ESM-CB
(2522722)

Possibly enclosed data
sheet

Contents

Basic information for safe setup and service

(this document)

Item-specic information about deviations or additions

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.

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Operating Instructions

Safety Relay with IO-Link ESM-CB

2. Correct use

The safety relay is used to monitor safety-related signaling devices and to control actuators. The safety circuit monitors
two sensor circuits. Each sensor circuit can have one or two channels. When at least one sensor circuit is interrupted, the
safety relay initiates the safe state. The safety relay interrupts safety circuits in a safety-related manner.

Possible signaling devices:

Ì Emergency stop pushbuttons
Ì Safety door interlocks
Ì Light grids

Before use, a risk assessment must be performed on the machine, e.g. in accordance with:

Ì ENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
Ì ENISO12100, Safety of machinery – General principles for design – Risk assessment and risk reduction
Ì ENIEC62061, Safety of machinery – Functional safety of safety-related electrical, electronic and programmable elec-

tronic control systems

Correct use includes observing the relevant requirements for installation and operation, e.g.:

Ì ENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
Ì EN60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General requirements

Important!

Ì The 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.

Ì Correct use requires observing the permissible operating parameters (see chapter 15. Technical

data).

Ì Only components that are intended for combination with the device may be used. Also observe the

operating instructions for the components used (see chapter 1.4. Supplementary documents)

2522722-01-05/19 (Translation of the original operating instructions)

EN

5

Operating Instructions
Safety Relay with IO-Link ESM-CB

3. Description of the safety function

3.1. Monitoring of sensor circuits

The safety circuit monitors two sensor circuits. Each sensor circuit can have one or two channels.

The safety relay can be operated only if both sensor circuits are used. If only one sensor circuit is used, the second sensor
circuit must be bridged.

The sensor circuits evaluate various signaling devices:

Ì Sensor circuitS1 with short circuit detection; suitable for single- or dual-channel safety sensors
Ì Sensor circuitS2 suitable for OSSD signals; short circuit detection by signaling device

See chapter 6.2. Block diagram.

Single-channel sensor circuit

Ì The sensor circuit is not redundant.
Ì The safety relay does not detect short circuits in the sensor circuit.

Dual-channel sensor circuit

Ì The dual-channel sensor circuit is connected equivalently.
Ì The safety relay detects short circuits in the sensor circuit when wired accordingly.

See chapter 8.2. Signaling device connection variants.

3.2. Starting behavior

Start conditions

Ì Both sensor circuits are closed
Ì Enable signal present

The enable signal is a signal sent from the control system via IO-Link.
See chapter 6.1.1. Enabling from the non-safety-related control system.

Automatic start

The device starts automatically when the start conditions are met.

Manual, monitored start

When the start conditions are met, the device starts after the start circuit has been closed and then opened again by the
start button being pressed and released.

A connected start button is monitored.
See chapter 8.3. Start circuit and feedback loop connection variants.

Safe shut-down

Safety contacts 13/14 and 23/24 open without delay when at least one sensor circuit is interrupted.

The device is in the safe state when the safety contacts are open.

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Operating Instructions

Safety Relay with IO-Link ESM-CB

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

WARNING

Danger to life due to improper installation or due to bypassing (tampering). Safety components fulll
a personnel protection function.

Ì Mounting, 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.

Ì The number of teach-in and switching operations is saved in the internal memory of the evaluation

unit. If necessary, this memory can be read by the manufacturer.

Important!

Prior to use, read the operating instructions and keep these in a safe place. Ensure the operating
instructions are always available during mounting, setup and servicing. EUCHNER cannot provide any
warranty in relation to the readability of the CD for the storage period required. For this reason you
should archive a printed copy of the operating instructions. You can download the operating instruc­tions from www.euchner.com.

2522722-01-05/19 (Translation of the original operating instructions)

EN

7

Operating Instructions
Safety Relay with IO-Link ESM-CB

6. Function

6.1. IO-Link communication and functions

The safety relay is an IO-Link device.

Communication via IO-Link offers cyclical (process data) and acyclical (device data and events) data exchange.

Important!

The cyclical and acyclical data can be found in chapter 14. IO-Link communication and diagnostic data.

The following information is transmitted:

Ì Device information of the safety relay (electronic rating plate, states of the device)
Ì State information about connected BR safety switches

IO-Link communication can be used for the following functions as well:

Ì Enable signal: non-safety-related signal for controlling the safety contacts of the safety relay
Ì Chain reset: performing a reset of the BR safety switch chain

6.1.1. Enabling from the non-safety-related control system

The safety contacts of the safety relay can be controlled via a non-safety-related enable signal via IO-Link communication.
The start button does not have to be pressed again.

When the safety relay detects an IO-Link connection, the enable signal must be set accordingly via IO-Link communication
for operation.

This function is not relevant to safety and is subordinate to the safety engineering function of the safety relay. In other words,
the non-safety-related enable signal cannot start the safety contacts of the safety relay until the safety-relevant prerequisites
for sensor circuits and the starting circuit of the safety relay have been fullled.

The enable signal is controlled via cyclical data exchange (process data).

6.1.2. Chain reset

All BR safety switches in a chain can be centrally restarted with a chain reset via IO-Link communication.

This function facilitates the re-establishment of readiness after troubleshooting.

The chain reset command is controlled via cyclical data exchange (process data).

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6.2. Block diagram

A1

A2

S10

S11

S12

S14

S32

13/14

23/24

ID/C

OM

L+/L-

C/Q

UB

A1

S14

LOGIC

S11

S10 S12

S21

Start

S32

OSSD

Safety
Inputs

Operating Instructions

Safety Relay with IO-Link ESM-CB

S34

OSSD

ID/C

13 23

Safety

Contacts

ESM

A2

0V

IO-Link
Slave

Figure 1: Block diagram

Power supply 24VDC
Power supply 0V
Supply input for S14
Supply output for S12 and S21
Sensor circuit S1 input (channel1)
Sensor circuit S1 input (channel2)

S21 Start circuit

OSSD sensor circuitS2 input (channel1)

S34 OSSD sensor circuitS2 input (channel2)

Safety contacts, non-time-delay

Safety switch diagnostic input
Digital monitoring output
IO-Link supply
IO-Link switching and communication line

C/QL+ L-

OM

14 24

6.2.1. Insulation coordination

WARNING

Loss of electrical safety

Ì Take measures outside the device to limit transient overvoltages to the respective valve for over-

voltage category II.

 A1/A2, Logic IO-Link 13/14 23/24 Housing

A1/A2, Logic - 0.5kV ST 4kV ST 4kV ST 4kV BI

IO-Link - - 4kV ST 4kV ST 4kV BI

13/14 - - - 4kV ST 4kV BI

23/24 - - - - 4kV BI

Housing - - - - -

Key:
BI Basic insulation
ST Safe isolation
Logic Sensor and start circuits, diagnostic input monitoring output
IO-Link IO-Link supply, IO-Link switching and communication line

EN

2522722-01-05/19 (Translation of the original operating instructions)

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Operating Instructions
Safety Relay with IO-Link ESM-CB

6.3. Communication and functions with BR safety switches

6.3.1. Diagnostic data

The ID/C connection of the safety relay allows the diagnostic line of a BR safety switch chain to be connected.

The ID/C connection represents a non-safety-related communication channel between the safety relay and the safety switches.

The switches address the individual switches when the safety switch chain starts up. Addressing permits unique diagnostics
for each safety switch.

The safety relay synchronizes itself with the safety switch chain after a restart. All safety switches are then available for
communication and diagnostics. The safety contacts can be enabled only after establishment of complete BR communication.

6.3.2. Hot plugging – replacing a BR safety switch

A safety switch within a BR safety switch chain can be replaced during operation. This process is called hot plugging.

In order to perform correct addressing after replacement, only one safety switch can be replaced at a time (1:1 replacement).

If another safety switch is to be replaced, the required switch-on delay of the previously replaced switch must be taken into
account.

Important!

Observe the technical data of the BR safety switch in the corresponding product documentation.

6.4. Function of monitoring output OM

The signal level of the monitoring output is equivalent to the state of the safety relay’s safety contacts.

The monitoring output is active (HIGH level) when the safety contacts are closed.

The monitoring output is inactive (LOW level) when at least one safety contact is open.

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7. Mounting

NOTICE

Device damage due to improper installation or unsuitable ambient conditions.

Ì The safety relay must be installed in a control cabinet protected against dust and moisture, with

a minimum degree of protection of IP54. A snap-in element on the rear of the device is used for
fastening to a mounting rail.

Ì When mounting several evaluation units side by side in a control cabinet without air circulation

(e.g.fan), note that a minimum distance of 10mm must be maintained between the evaluation
units. This distance enables the heat from the evaluation unit to dissipate. Observe the derating in
chapter 15.3.

Ì Mount the device on a 35-mm mounting rail according to EN60715.
Ì Loosen the locking foot using a screwdriver to remove.

Operating Instructions

Safety Relay with IO-Link ESM-CB

Figure 2: Mounting and removing

EN

2522722-01-05/19 (Translation of the original operating instructions)

11

Operating Instructions

AWG 24-16

2

Safety Relay with IO-Link ESM-CB

8. Electrical connection

WARNING

If there is a mistake, loss of the safety function due to incorrect connection.

Ì Monitoring outputs must not be used as safety outputs.
Ì Lay the connecting cables with protection to prevent the risk of short circuits.

NOTICE

Risk of damage to equipment or malfunctions as a result of incorrect connection.

Ì All the electrical connections must either be isolated from the mains supply by a safety transform-

er according to IEC 61558-2-6 with limited output voltage in the event of a fault, or by other equiv­alent isolation measures.

Ì All electrical outputs must have an adequate protective circuit for inductive loads. The outputs

must be protected with a free-wheeling diode for this purpose. The switch-on current may have to
be limited for capacitive loads.

Ì Protect the 24 V area with a suitable external fuse.
Ì Make sure that the power supply unit can provide quadruple the nominal current of the external

fuse in order to guarantee reliable triggering in case of a fault.

0,2-1,5 mm

B

A

8 mm

A

Figure 3: Cable connection (spring terminal)

Tip!

Ì It is recommended to use cable end sleeves for connecting exible cables

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8.1. Terminal assignment

L-L+C/Q

Operating Instructions

Safety Relay with IO-Link ESM-CB

A1 A2 S21

S11

S12

S10

DIA

PWR

STATE1

STATE2

K1/K2

IO-Link

OMOM

ID/C

A1 Power supply 24VDC

A2 Power supply 0V

S14

S10 Supply input for S14

S34S32

S11 Supply output for S12 and S21

S12 Sensor circuit S1 input (channel1)

S14 Sensor circuit S1 input (channel2)

S21 Input for start circuit

S32 OSSD sensor circuitS2 input (channel1), input for FO1A from BR series connection

S34 OSSD sensor circuitS2 input (channel2), input for FO1B from BR series connection

PWR Power LED (green, yellow, red)

DIA Diagnostic message present indication; LED (red)

IO-Link IO-Link communication status indication; LED (green)

STATE 1 Sensor circuitS1 status indication; LED (green)

STATE 2 Sensor circuitS2 status indication; LED (green)

ESM-CB

K1/K2 Safety circuit K1 and K2 status indication; LED (green)

13/14 Safety contact, non-time-delay

23/24 Safety contact, non-time-delay

ID/C Safety switch diagnostic input

231413

OM Digital monitoring output

24

C/Q IO-Link switching and communication line

L+/L- IO-Link supply

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EN

13

Operating Instructions

1 2

S11 S14S10 S12 S11 S14S10 S12 S11S14S10S12

3

1

S34S32 S34S32 S34S32

23

Safety Relay with IO-Link ESM-CB

8.2. Signaling device connection variants

Important!

The safety relay can be operated only if both sensor circuits are used. If only one sensor circuit is
used, the second sensor circuit must be bridged.

8.2.1. Sensor circuit S1

WARNING

Danger due to the machine restarting automatically

Ì Low-resistance PLC outputs can be interpreted as a permanent High signal (permanently switched

on) at input S14 of the safety relay. Safe shut-down via a low-resistance PLC output at S14 is
therefor not possible.

- Do not use any low-resistance PLC outputs at input S14.

Ì Connect suitable signaling devices to S11/S12/S10/S14.

Figure 4: Sensor circuit S1 connection variants

Key:
1 Dual-channel connection with short-circuit detection
2 Dual-channel connection without short-circuit detection
3 Single-channel connection

8.2.2. Sensor circuit S2

Important!

Sensor circuit S2 does not offer short circuit detection. If short-circuit detection is required, this must
be performed externally by means of suitable signaling devices.

Ì Connect suitable signaling devices to S32/S34.

OSSD

Figure 5: Sensor circuit S2 connection variants

Key:
1 Dual-channel connection with external short circuit detection by the signaling device
2 Dual-channel connection without short-circuit detection

3 Single-channel connection

24 V DC 24 V DC

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(Translation of the original operating instructions) 2522722-01-05/19

8.3. Start circuit and feedback loop connection variants

1

2

3

S21S10

S21S10

S21S11

S21S11

4

WARNING

Danger due to the machine restarting automatically

Ì When the manual reset function is used with monitored starting, a short circuit between A2/S21/0

V can the cable of the start button can cause the machine to start up automatically. This applies in
particular to safety functions with a high risk potential.

- Rule out a short circuit between A2/S21/0 V and the cable from the start button to S21 by de­sign measures (see fault exclusion according to ENISO13849-2).

Ì Low-resistance PLC outputs can be interpreted as a ground signal at input S21 of the safety relay

and can cause an automatic start.

Automatic start

Ì Bridge contacts S10/S21.

Manual, monitored start

Ì Connect a start button to S11/S21.

A connected start button is monitored.

Operating Instructions

Safety Relay with IO-Link ESM-CB

Start circuit and feedback loop

Ì To monitor external contactors or expansion devices with positively driven contacts, place the respective NC contacts in

the path S10/S21 or S11/S21.

K3

K4

0V

0V

Figure 6: Start circuit and feedback loop connection variants

Key:
1 Automatic start
2 Automatic start with monitored contact expansion
3 Manual, monitored start with monitored contact expansion
4 Manual, monitored start

K3

K4

24 V DC

24 V DC

2522722-01-05/19 (Translation of the original operating instructions)

EN

15

Operating Instructions
Safety Relay with IO-Link ESM-CB

8.4. Notes about

Important!

Ì For use and operation as per the requirements

class 2 circuits” must be used.
Alternative solutions must comply with the following requirements:

- Electrically isolated power supply unit with a max. open-circuit voltage of 30V/DC and a limited
current of max. 8A.

1)

, a power supply with the feature “for use in

Ì Use cable material made of copper with a temperature resistance of 60°C/75°C.

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. Application example

9.1. Dual-channel monitoring of emergency-stop pushbutton and safety switch chain
with IO-Link

WARNING

Loss of functional safety

Ì Make sure that the signaling device and the safety relay have the same ground potential.

Important!

Observe the information about applications with BR safety switches in the corresponding product
documentation.

Description of the application:

Ì Dual-channel emergency-stop monitoring on sensor circuit S1
Ì Dual-channel monitoring of the safety switch chain on sensor circuit S2
Ì Manual, monitored start of the safety relay by start relay S1 (connection S21)
Ì Monitoring of external, positively driven contactors in the start circuit at S21
Ì IO-Link connection of the safety relay to the IO-Link master

Achievable safety integrity:

Ì Suitable up to category4, PLe (ENISO13849-1), SIL3 (EN62061)

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(Translation of the original operating instructions) 2522722-01-05/19

Safety

Outputs

Monitoring

Output

Read Head

+UB

2

FI1A

6

FI1B

1

0V

7

OD/C

5

FO1A

3

FO1B

4

NC

8

CES

Safety Inputs

Safety
Inputs

Start

OM

ID/C

Safety

Contacts

LOGIC

13 23

14 24

IO-Link
Slave

S21S12

0V

A2

UB

A1

C/QL+ L-

C/QL+ L-

S10 S11

OSSD

S32

OSSD

S34

ESM

IO-Link
Master

K3

K4

0 V

24 V DC

S1

K3

K4

S2

Safety

Outputs

Monitoring

Output

Read Head

+UB

2

FI1A

6

FI1B

1

0V

7

OD/C

5

FO1A

3

FO1B

4

NC

8

CES

Safety Inputs

Safety

Outputs

Monitoring

Output

Read Head

+UB

2

FI1A

6

FI1B

1

0V

7

OD/C

5

FO1A

3

FO1B

4

NC

8

CES

Safety Inputs

F1 F3F2

S14

Operating Instructions

Safety Relay with IO-Link ESM-CB

EN

Figure 7: Monitoring of emergency-stop pushbutton and safety switch chain with IO-Link

Key:
S1 Emergency stop pushbutton
S2 Manual resetting device
S3…S5 BR safety switch
F1…F3 External fuses
K3/K4 Positively driven contactors

2522722-01-05/19 (Translation of the original operating instructions)

17

Operating Instructions
Safety Relay with IO-Link ESM-CB

10. Setup

WARNING

Ì In emergency stop applications, automatic machine startup can pose a severe danger to the oper-

ator.

- Prevent the machine from being started up again automatically by the higher-level control system.

Ì According to ENISO13849-1, the manual, monitored resetting device must not trigger a machine

start.

Ì Inductive loads can lead to welded relay contacts.

- Implement suitable, effective suppressor circuits on inductive loads.

- Connect the suppressor circuits in parallel with the load, not in parallel with the switching contact.

Ì Magnetic elds can affect the device.

- The magnetic eld strength in the surroundings must not exceed 30A/m.

- Do not use the device near strong magnetic elds (e.g. due to transformers or magnetite).

Ì Interference can be emitted during the operation of relay modules. Radio reception in residential

areas can be disturbed.
The device is a class-A product.

- Observe the requirements for emitted interference for electrical and electronic equipment
(EN61000-6-4).

- Take appropriate protective measures against emitted interference.

Integrating the device description le

Ì Integrate the suitable device description le (IODD) into the engineering tool in accordance with the number of connect-

ed BR safety switches (see chapter 14.1. Device description le).

Ì Download the conguration to the IO-Link master.

Setting up the safety relay

Ì Connect the power supply (24VDC) to terminals A1/A2.
Ì Connect the IO-Link supply L+/L- and the switching and communication cable C/Q to the corresponding port of the IO-

Link master.

¨ The PWR LED illuminates green.

¨ The IO-Link LED ashes green once IO-Link communication has been established.

Ì Connect the sensor circuits in accordance with their wiring (see chapter 8.2. Signaling device connection variants).

Activating the enable signal

Ì To control the safety contacts, set the enable signal via the cyclical data item in byte 0, bit 0 (see chapter 14.3. Cyclical

data (process data)).

Automatic start

¨ Close safety contacts 13/14 and 23/24.

¨ LED K1/K2 illuminates green.

Manual, monitored start

Ì Press the start button.
Ì Release the start button.

¨ Close safety contacts 13/14 and 23/24.

¨ LED K1/K2 illuminates green.

Possible diagnoses

The status information of the individual BR safety switches and the device information of the safety relay can be processed
by the cyclical data (see chapter 14.3. Cyclical data (process data)).

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11. Calculating the power dissipation

Important!

The total power dissipation of the safety relay results from the input power dissipation and the contact
power dissipation with equal or differing load currents.

Input power dissipation

P

=UB²/(US/IS)

input

P

=U

IO-Link

Contact power dissipation

With equal load currents:

P

=n*IL²*50mΩ

contact

With differing load currents:

P

=(IL1²+IL2²)*50mΩ

contact

Total power dissipation

BIOL

²/(U

IOL/IIOL

)

Operating Instructions

Safety Relay with IO-Link ESM-CB

P

total

=P

input

+P

IO-Link

+ P

contact

therefore

P

=UB²/(US/IS)+ U

total

BIOL

²/(U

IOL/IIOL

or

P

=UB²/(US/IS)+ U

total

Key:
P Power dissipation in mW
UB Connected operating voltage at A1 and A2
US Rated control circuit supply voltage
IS Rated control supply current
U

Connected IO-Link periphery supply voltage

BIOL

U

IO-Link rated periphery supply voltage

IOL

I

IO-Link port supply current consumption

IOL

n Number of safety contacts used
IL Contact load current

BIOL

²/(U

IOL/IIOL

) +nIL²*50mΩ

) +(IL1²+IL2²)*50mΩ

2522722-01-05/19 (Translation of the original operating instructions)

EN

19

Operating Instructions
Safety Relay with IO-Link ESM-CB

12. Function test

WARNING

Loss of functional safety due to malfunction.

Ì Proper function of the device can no longer be ensured if the function test is faulty.

- Replace the device.

1. Switch on operating voltage.

2. Close all guards.

¨ Automatic start: the machine can start.

¨ Manual start: the machine may start only after you have pressed the start button.

3. Open the guard.

¨ The machine must switch off and it must not be possible to start it as long as the guard is open.

4. Close the guard

¨ Automatic start: the machine can start.

¨ Manual start: the machine may start only after you have pressed the start button.

Repeat steps 2 … 4 separately for each guard.

20

(Translation of the original operating instructions) 2522722-01-05/19

13. Device diagnostics

Important!

Ì Plausibility errors are deleted when the power supply is switched off (power-down reset).
Ì Please contact EUCHNER if an error or fault symptom that is not listed occurs.

13.1. Diagnostics via LED displays

Important!

Behavior of the IO-Link LED

Ì In the operating state with IO-Link, the OI-Link LED ashes green while IO-Link communication is

active.

Ì If the IO-Link LED is switched off in the operating state with IO-Link, this indicates a loss of commu-

nication. Check the IO-Link connection in this case.

13.1.1. General states

Operating Instructions

Safety Relay with IO-Link ESM-CB

No. Status

1 PowerUp

2 Ready

Ready for switch-

3

ing on

Safety outputs

4

On

Key:

LED off

LED illuminated

DIA
red

PWR

green

STATE 1

green

5 Hz

Long ON,

short OFF

Long ON,
short OFF

LEDs

STATE 2

green

Long ON,

short OFF

Long ON,
short OFF

K1/K2

green

IO-Link

green

State

Device booting.

All relays not controlled.

X

All sensor circuits are off.

All relays not controlled.

X

Sensor circuit 2 is off.

All relays not controlled.

X

Sensor circuit 1 is off.

One or both sensor circuits (S1 and S2) is or are active.

X

Relays K1 and K2 are ready to start and waiting for a start
command.

X The sensor circuits are active. All relays have picked up.

LED ashes at 5 Hz

5 Hz

State-dependent

X

2522722-01-05/19 (Translation of the original operating instructions)

EN

21

Operating Instructions
Safety Relay with IO-Link ESM-CB

13.1.2. Error messages

No. Status

5 Internal error Module is not ready for operation.

6 Input error at S1

7 Input error at S2

Start button

8

error

9 Output error

10 Periphery error

11 Periphery error

BR communica-

12

tion error

DIA
red

PWR

green

LEDs

STATE 1

green

2x

2x 2x

5x

STATE 2

green

2x

K1/K2

green

4x

IO-Link

green

State

External error: The channel 1 sensor circuit was opened and

X

reactivated, e.g. discrepancy error.

External error: The channel 2 sensor circuit was opened and

X

reactivated, e.g. discrepancy error.

X Error in manual reset S34.

External error: The read-back contact in the start circuit is
open.

X

Internal error:

1. Diagnostic contact does not work properly.

2. NO contact is fused closed.

L+ low voltage.

5x

X Supply (A1/A2) low voltage.

Check the ID/C or OD/C connection of the devices in the

X

series connection.

BR communica-

13

tion error on one
device

17 Parameter error

Key:

LED off

LED illuminated

LED ashes three times

3x

Rapid ashing

State-dependent

X

Check the correct function of the device in the series con-

X

nection.

3x

Incorrect IO-Link parametrization.

22

(Translation of the original operating instructions) 2522722-01-05/19

Operating Instructions

Safety Relay with IO-Link ESM-CB

14. IO-Link communication and diagnostic data

14.1. Device description le

Depending on the number of connected BR safety switches, you will require a corresponding device description le (IO-Link
Device Description, IODD).

You can use the device description le to congure and set up IO-Link devices. It contains information about identication,
device parameters, process and diagnostic data, communication properties and the design of the user interface in engi­neering tools

The valid device description les are available for download from the address www.euchner.com|service|download|software.
You additionally have the option of downloading the device description le from the ofcial IO-Link page ioddnder.io-link.

com. Go to the IODDnder.

Important!

If you selected an incorrect IODD or an IODD that offers too few inputs or outputs for your system
design, your IO-Link conguration software will display a corresponding error message.

14.1.1. Overview of IODDs

Vendor ID Device ID

hex dec hex dec

135 309 010101 65793 6 1

135 309 010102 65794 11 1

135 309 010103 65795 21 1

135 309 010104 65796 11 6

135 309 010105 65797 21 11

135 309 010106 65798 31 16

Inputs Outputs

14.1.2. Use of the various IODDs

Different IODDs can be used depending on the length of a series connection. They differ in the number of process-data
items on the input side and output side.

No outputs are required for series connections of interlocks, such as the CES-C07. Use the IODD that is the most suitable
for the length of your chain.

Example: When connecting seven CES-C07 in series, use the IODD Euchner-ESM_CB_158857_11x1-20181116-IODD1.1
for up to ten CES-C07 plus one byte for the evaluation unit. 8 bytes are used on the input side in this case.

EN

2522722-01-05/19 (Translation of the original operating instructions)

23

Operating Instructions

O

Safety Relay with IO-Link ESM-CB

14.2. Process-data structure and addressing

Refer to the following illustration and the associated table for the structure of the process data and for the addressing of
a BR safety switch chain.

A1 A2 S21
S11

S14

S12

S10

S34S32

DIA

PWR

STATE1

STATE2

K1/K2

IO-Link

ESM-CB

231413

OMOM

24

ID/C

L-L+C/Q

Address 0

Figure 8: Addressing

Address 2Address 3Address 4Address 5Address 6Address 7 Address 1

Byte 0 1 2 3 4 5 6 7

Input process data ESM-CB

Device1

CES1

Device2

CES2

Device3

CES3

Device4

CES4

Device5

CES5

Device6

CES6

Device7

CES7

Output process data ESM-CB – – – – – – –

Example: 7xCES

IODD Euchner-ESM_CB_158857_11x1-20181116-IODD1.1 is used

Byte 0 1 2 3 4 5 6 7 8 9 10

Input

I

Output

ESM-CB CES1 CES2 CES3 CES4 CES5 CES6 CES7 – – –

ESM-CB

14.3. Cyclical data (process data)

Depending on the corresponding IODD, the device occupies 6/11/21/31 input process-data items and 1, 6, 11 or 16
output data items.

14.3.1. Input data

Byte 0 (IO-Link diagnostic bits/status of ESM-CB)

Bit Description Value

Bit0 Sensor circuit S1

Bit1 Sensor circuit S2

Bit2 Output circuits K1 and K2

Bit3 Start circuit

Bit4…bit7 Error messages See device status and error messages

0: Sensor circuit S1 inactive

1: Sensor circuit S1 active

0: Sensor circuit S2 inactive

1: Sensor circuit S2 active

0: Output circuits K1 and K2 inactive

1: Output circuits K1 and K2 active

0: No start acknowledgment required

1: Start acknowledgment required

24

(Translation of the original operating instructions) 2522722-01-05/19

Operating Instructions

Safety Relay with IO-Link ESM-CB

Device status and error messages

Important!

Ì If several fault codes are active simultaneously, the error code with the highest priority will dis-

place the other active error codes.

Ì Error code 0000 Ongoing operation is permanently active.

Bit 4…bit7 Description Possible cause Remedy

0111 System error Internal error Perform a power-down reset followed by a function test. Replace the device if the error

0110 Input error Plausibility error in sensor

0101 IO-Link low voltage Check the power supply.

0100 ESM-CB low voltage Check the power supply.

0011 Diagnostic communica-

tion error

0010 Parameter error Wrong manufacturer’s code of

0001 Diagnostics active Internal error Perform a power-down reset followed by a function test. Replace the device if the error

0000 Ongoing operation - -

circuit, short circuits
Internal error Perform a power-down reset followed by a function test. Replace the device if the error

One or more safety switches
cannot be reached.

a switch.
Permanently congured pro­cess-data size insufcient.

recurs after the function test.
Check whether the second channel opens on request from the sensor.

recurs after the function test.

Restart the safety switch chain

Use only suitable BR safety switches.
Remove the permanent conguration of the process-data size.

recurs after the function test.

14.3.2. General description of the process data

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

OI – – OR OM – OW OD

OI General error message

Retrieve the exact error code via an acyclical service.

OR State of the switch’s predecessor

Indicates whether the preceding switch in the series connection has switched on the safety outputs.

OM State of the safety outputs of the switch

Indicates whether the switch has switched on the safety outputs.

OW Actuator weak area

When this bit is set, the actuator is at the edge of the detection area.

OD Door position

The bit is set when the guard is closed (it does not have to be locked).

Please refer to the manual of the connected interlocking device or guard locking device to determine which bits are actually
used. Not all switches support every bit.

14.3.3. Output data

Byte 0 (IO-Link diagnostic bits/status of ESM-CB)

Bit Description Value

0 Enable signal

1 Chain reset A chain reset is performed at the transition from 1 to 0

2…7 Reserved

0: Deactivated (safety contacts blocked)

1: Activated (safety contacts can be closed)

EN

2522722-01-05/19 (Translation of the original operating instructions)

25

Operating Instructions
Safety Relay with IO-Link ESM-CB

14.4. Acyclical data (device data and events)

14.4.1. Writing and reading services

Important!

The manufacturer’s code for EUCHNER is 0x01.

Index100 – reading service: size of the input/output data areas

Index
dec (hex)

100 (64) 0 (0)

Subindex
dec (hex)

No. Type Description

1 UInt8 Manufacturer’s code of safety switch1

1 (1)

2 (2)

… … UInt8 …

31 (1F) 91 UInt8 Number of safety switches

2 UInt8 Input process-data size of safety switch1

3 UInt8 Output process-data size of safety switch1

4 UInt8 Manufacturer’s code of safety switch2

5 UInt8 Input process-data size of safety switch2

6 UInt8 Output process-data size of safety switch2

Index101 – reading service: manufacturer’s codes of the devices

Index
dec (hex)

101 (65) 0 (0)

Subindex
dec (hex)

No. Type Description

1 (1) 1 UInt8 Manufacturer’s code of safety switch1

2 (2) 2 UInt8 Manufacturer’s code of safety switch2

… … UInt8 …

30 (1E) 30 UInt8 Manufacturer’s code of safety switch30

31 (1F) 31 UInt8 Number of safety switches

Index102 – reading service: size of the input data area

Index
dec (hex)

102 (66) 0 (0)

Subindex
dec (hex)

No. Type Description

1 (1) 1 UInt8 Input process-data size of safety switch1

2 (2) 2 UInt8 Input process-data size of safety switch2

… … UInt8 …

30 (1E) 30 UInt8 Input process-data size of safety switch30

31 (1F) 31 UInt8 Number of safety switches

Index103 – reading service: size of the output data area

Index
dec (hex)

103 (67) 0 (0)

26

Subindex
dec (hex)

No. Type Description

1 (1) 1 UInt8 Output process-data size of safety switch1

2 (2) 2 UInt8 Output process-data size of safety switch2

… … UInt8 …

30 (1E) 30 UInt8 Output process-data size of safety switch30

31 (1F) 31 UInt8 Number of safety switches

(Translation of the original operating instructions) 2522722-01-05/19

Index201…230 – writing service: command to individual switch

NOTICE

The possible telegrams are described in chapter 14.5. Communication with BR devices.

Operating Instructions

Safety Relay with IO-Link ESM-CB

Index
dec (hex)

201 (C9) 0 (0)

202 (CA) 0 (0)

… … … … …

230 (E6) 0 (0)

Subindex
dec (hex)

No. Type Description

1 UInt8 User data length of the telegram for safety switch1

2…8 UInt8 User data of the telegram for safety switch1

1 UInt8 User data length of the telegram for safety switch2

2…8 UInt8 User data of the telegram for safety switch2

1 UInt8 User data length of the telegram for safety switch30

2…8 UInt8 User data of the telegram for safety switch30

The telegram consists of eight bytes for writing to the indices. The user data of the telegram therefore must be padded
with 00.

Example:

01 02 00 00 00 00 00 00

01 = User data length

02 = Request telegram to the ESM-CB (order number/serial number)

Bytes 2 … 7: padded zeros

Index250 – writing service: IO-Link mode

Index
dec (hex)

Subindex
dec (hex)

No. Type Description

250 (FA) 0 (0) 1 UInt8

Reset of IO-Link mode

0x01: reset IO-Link mode
0xFF: retain IO-Link mode

Index10…17 – reading service: retrieving the data of the ESM-CB

Index
dec (hex)

16 (10) 0 (0) - String Manufacturer

17 (11) 0 (0) - String Manufacturer’s text

18 (12) 0 (0) - String Product name

19 (13) 0 (0) - String Product ID

20 (14) 0 (0) - String Product text

21 (15) 0 (0) - String Serial number

22 (16) 0 (0) - String Hardware version

23 (17) 0 (0) - String Firmware version

Subindex
dec (hex)

No. Type Description

EN

2522722-01-05/19 (Translation of the original operating instructions)

27

Operating Instructions
Safety Relay with IO-Link ESM-CB

14.5. Communication with BR devices

Note: The data is in Big Endian format.

Transmission Reply

Hex Dec Command Number of bytes Number of bytes

2 2 Send order no. and serial no. 3 bytes for order no. 3 bytes for serial no.

3 3 Send device version 1 byte for letter V 4 bytes for version number, e.g.

5 5 Send number of safety switches

in the series connection

12 18 Send current error code 1 byte for error code.

13 19 Send saved error code (history) 1 byte for error code. This error

14 20 Send size of log le 1 byte for length of the current

15 21 Send entry from log le with

index. The required index must
be sent in the second byte.

16 22 Send current actuator code With unicode evaluation:

17 23 Send taught-in actuator code With unicode evaluation:

18 24 Send disabled actuator code With unicode evaluation:

19 25 Send applied voltage 2 bytes for voltage value in mV

1A 26 Send current temperature 1 byte for temperature value

1B 27 Send number of switching

cycles

1D 29 Reset device 1 byte for acknowledgment,

1E 30 Factory-reset device 1 byte for acknowledgment,

2 bytes

is no longer present.

log le
1 byte for error code.

5 bytes for code of the currently
read actuator.
With multicode evaluation:
replies with 5x 0xFF

5 bytes for code of the taught-in
actuator in the switch.
With multicode evaluation:
replies with 5x 0xFF

5 bytes for code of the currently
disabled actuator.
With multicode evaluation:
replies with 5x 0xFF

in °C
3 bytes for counter value

value hex 1D

value hex 1E

1.0.1.0 (the periods are not
transmitted)

28

(Translation of the original operating instructions) 2522722-01-05/19

Operating Instructions

Safety Relay with IO-Link ESM-CB

14.6. Error table for BR devices

Depending on the device type, not all error messages are required or supported.

Error number Error designation Cause/remedy

0x01+A4:E25 Internal error All errors that prevent normal operation and over which the customer

0x06 Internal error Fault on the internal switching element. Guard locking can no longer be

0x1F Actuator not detected often enough during teach-in operation/actuator

removed.

0x20 DIP switch conguration does not correspond to the software congu-

ration.

0x21 DIP switch conguration between the channels not plausible. DIP switch conguration for the two channels is not plausible or does not

0x25 Invalid actuator detected during teach-in operation. Actuator detected is not a valid actuator or actuator is faulty.

0x2E Different states of FI1A and FI1B Different signal states at the two safety inputs.

0x2F Communication error BR (master) Diagnostics communication between master and slave not possible/

0x31 Test pulse on FI1A not detected. Missing test pulse

0x32 Test pulse on FI1B not detected. Missing test pulse

0x36 Test pulse on FI1A not detected on PowerUp. Missing test pulse

0x37 Test pulse on FI1B not detected on PowerUp. Missing test pulse

0x43 Disabled actuator detected during teach-in operation. Already taught in but disabled actuator has been detected. The user

0x44 Invalid actuator detected

0x4C HIGH level on output FO1A even though LOW level is expected. A HIGH level has been detected on safety output FO1A during PowerUp.

0x4D HIGH level on output FO1B even though LOW level is expected. A HIGH level has been detected on safety output FO1B during PowerUp.

0x4E LOW level on output FO1A even though HIGH level is expected. Although safety output FO1A has switched off, a HIGH level has been

0x4F LOW level on output FO1B even though HIGH level is expected. Although safety output FO1B has switched off, a HIGH level has been

0x50 Discrepancy time between FO1A and FO1B too long. Switch-on/switch-off time between FO1A and FO1B too long.

0x51 Error on reading back the test pulse on FO1A. Missing test pulse

0x52 Error on reading back the test pulse on FO1B. Missing test pulse

0x54 General output error

0x60 Supply voltage too high. Overvoltage

0x61 Supply voltage too low. Low voltage

0x62 Temperature too high. Temperature in housing too high.

0x63 Temperature too low. Temperature in housing too low.

0x64 Guard locking supply voltage too high. Overvoltage

0x65 Guard locking supply voltage too low. Low voltage

0x67 Advance warning supply voltage too low 5%. Low voltage

0x88 Plausibility error: bolt fracture Transponder for the bolt has been detected without the door closed.

0x8A Plausibility fault, signal sequence Transponder has been detected without movement of the locking arm

0x8B Escape release Escape release has been actuated (only if parametrized).

has no control.

- Error in the program les

- Error in the light barrier

- Safe control of guard locking no longer possible

controlled safely.
See error designation

DIP switch conguration is not identical to the conguration saved in the
memory. The user must check the DIP switch setting.

match. The user must check the DIP switch setting.

communication disrupted

Examples: short circuits, FI1A and FI1B swapped.

Examples: short circuits, FI1A and FI1B swapped.

must present the taught-in actuator or teach in another actuator.

read back.

read back.

(latch).

2522722-01-05/19 (Translation of the original operating instructions)

EN

29

Operating Instructions

C/Q

ca.112

Possible signaling devices

Ì
Ì
Ì

Contact type

Ì
Ì
Ì
Ì
Ì

Safety Relay with IO-Link ESM-CB

15. Technical data

NOTICE

If a data sheet is included with the product, the information on the data sheet applies.

15.1. Safety relay ESM-CB

Ì Diagnostic data via IO-Link in combination with BR safety switches
Ì Short circuit detection
Ì Plug-in spring terminals
Ì 17.5mm housing width

Dimension drawing

S21A2A1

S11S12 S14

S34

S32S10

DIA

PWR

STATE1

STATE2

K1/K2

IO-Link

Approvals

Safety contacts

23

A1

13

99

ESM-CB

13 14 23

OM

ID/C

24

C/QL+L-

17,6

Emergency stop pushbuttons
Safety door interlocks
Light grids

Two sensor circuits
Two non-time-delayed safety contacts
One digital monitoring output
IO-Link interface
The safety contacts drop out without delay in accordance

with stop category0 according to EN60204-1.

2414

113,6

Control

Ì Single channel or dual channel
Ì Automatic or manual, monitored start

Achievable safety integrity

Ì Suitable up to category4, PLe (ENISO13849-1), SIL-

CL3 (EN62061)

30

(Translation of the original operating instructions) 2522722-01-05/19

Safety Relay with IO-Link ESM-CB

S

S

S

Technical data for ESM-CB

Hardware/rmware version

HW/FW ≥ 00/100
The technical data and the safety characteristics are valid from the specied HW/FW version.

Supply

Name A1/A2
Operating voltage U
Rated control supply current I
Power consumption at U
Switch-on current Typ. 2.5 A (Δt=500µs at US)
Filter time 1 ms (at A1 in case of voltage dips at US)
Suppressor circuit Serial reverse polarity protection

IO-Link ports: class A

Number of ports 1
Connection Spring terminals
Connection technology 3-conductor
Specication Version 1.1
Transmission rate 230 kbit/s (COM3)
Cycle time 5 ms
Process-data update 5 ms
Number of process-data items Max. 31 bytes (input data)

24 V DC -20%/+25% (fuse externally)
Typ. 60 mA
Typ. 1.44 W

Max. 16 bytes (output data)

Operating Instructions

IO-Link port supply: L+/L-

Rated periphery supply voltage 24 V DC -20%/+25% (provided via the IO-Link interface of the IO-Link master)
Current consumption Typ. 16 mA
Suppressor circuit Serial reverse polarity protection

IO-Link switching and communication line: C/Q

Number of inputs 1

Digital inputs: sensor circuit S0

Number of inputs 2 (safety-related sensor inputs: S12, S22)
Description of the input NPN (S12), NPN/PNP (S22)
Input voltage range of “0” signal 0 V DC … 5 V DC (S12)

Input current range of “0” signal 0 mA … 2 mA (S12, S22)
Input voltage range of “1” signal 11 V DC … 30 V DC
Switch-on current < 5 mA (typ. with US at S12, Δt=150ms)

Current consumption < 5 mA (typ. with US at S12)

Filter time 1.5 ms (test pulse width for LOW test pulses)

Max. permissible total cable resistance 150 Ω
Input 1/2 simultaneity ∞

For S22, see note in chapter 8.2. Signaling device connection variants.

< 5 mA (typ. with US at S22/24V, Δt=500µs)
> -5 mA (typ. with US at S22/0V, Δt=500µs)

< 5 mA (typ. with US at S22/24V)
> -5 mA (typ. with US at S22/0V)

Test pulse rate=5xtest pulse width
Deactivate switch-on pulses/light tests on safety applications.

2522722-01-05/19 (Translation of the original operating instructions)

EN

31

Operating Instructions

Description of the input

TH2

N2

Safety Relay with IO-Link ESM-CB

Digital inputs: sensor circuit S1

Number of inputs 2 (safety-related sensor inputs: S32, S34)

NPN
Input voltage range of “0” signal 0 V DC … 5 V DC
Input current range of “0” signal 0 mA … 2 mA
Input voltage range of “1” signal 11 V DC … 30 V DC
Switch-on current < 20 mA (typ. at US)
Current consumption < 5 mA (typ. at US)
Filter time Max. 1.5 ms (test pulse width for LOW test pulses)

Max. permissible total cable resistance 150 Ω
Input 1/2 simultaneity ∞

Digital inputs: diagnostic input

Number of inputs 1 (non-safety-relevant diagnostic input: ID/C)
Current consumption Typ. 30 mA

Digital inputs: start circuit

Number of inputs 1 (start input: S21)
Description of the input NPN (manual start), PNP (automatic start)
Input voltage range of “1” signal 19.2 V DC … 30 V DC (manual start, automatic start: 0V)
Switch-on current < 10 mA (typ. for US, Δt=100ms)
Current consumption < 5 mA (typ. for US at S21/24V)

Max. permissible total cable resistance 150 Ω

Test pulse rate=5xtest pulse width

Deactivate switch-on pulses/light tests on safety applications.

> -5 mA (typ. for US at S21/0V)

Safety contacts

Number of outputs 2 (safety-related normally open contacts: 13/14, 23/24)
Description of the output Respectively 2 NO in series, non-time-delayed, oating
Contact material AgSnO2
Switching voltage Min. 12 V AC/DC

Limiting continuous current 6 A
Switch-on current Min. 3 mA

Square total current
I

= I12 + I22 + … + I
Breaking capacity Min. 60 mW
Switching frequency 0.5 Hz
Mechanical life 10x 106 operating cycles
Switching capacity acc. to IEC60947-5-1 4 A (24 V (DC13))

Output fuse 6 A gL/gG

Monitoring outputs

Name OM
Number of outputs 1 (not safety relevant)
Description of the output PNP
Voltage Approx. 22 V DC (US-2V)
Current Max. 100 mA
Max. switch-on current 500 mA (Δt=1ms with US)

Max. 250 V AC/DC (observe load curve)

Max. 6 A
72 A2 (observe derating)

5 A (250 V (AC15))

4 A gL/gG (for low-demand applications)

32

(Translation of the original operating instructions) 2522722-01-05/19

Operating Instructions

Mounting instructions

Degree of contamination

Safety Relay with IO-Link ESM-CB

General data

Relay type Electromechanical relay with positively driven contacts according to IEC/EN61810-3

Nominal operating mode 100% duty cycle
Degree of protection IP20
Minimum degree of protection of installation location IP54
Mounting method Rail mounting
Installation orientation Vertical or horizontal

Housing version PBT gray
Operating voltage indication 1 x LED green, yellow, red
State indication 5x LEDs, green
Air clearances and creepage distances between the circuits According to

Rated insulation voltage 320 V
Rated insulation voltage/insulation

See chapter “Insulation coordination”

Overvoltage category II
Max. power dissipation at rated condition 6.45 W (US=30V, UL=30V, I²=72A²)
Note about power dissipation See chapter “Calculating the power dissipation”

(EN50205)

See derating curve

DIN EN 60947-1

Basic insulation 4 kV between all current paths and housing
Safe isolation, reinforced insulation 4kV between input circuit and safety contact (13/14)
and safety contact (23/24)

2

Dimensions Housing

W x H x D 17.5 x 116.6 x 114.5 mm

Connection data Spring terminals

Conductor cross-section, rigid 0.2 mm² … 1.5 mm²
Conductor cross-section, exible 0.2 mm² … 1.5 mm²
Conductor cross-section, AWG/kcmil 24 … 16
Stripping length 8 mm

Ambient conditions

Ambient temperature (operation) -25 °C … 60 °C (observe derating)
Ambient temperature (storage/transport) -40 °C ... 85 °C
Max. perm. atmospheric humidity (operation) 75% (on average, 85% occasionally, no dew formation)
Max. perm. atmospheric humidity (storage/transport) 75% (on average, 85% occasionally, no dew formation)
Shock 15 g
Vibration (operation) 10 Hz …150 Hz, 2 g

Safety engineering data

Stop category according to IEC60204 0

Safety engineering characteristics for IEC61508 – high demand

Device type Type A

HFT 1

SIL 3

PFH

D

Demand rate < 12 months

Proof-test interval 240 months

Mission time 240 months

1.00 x 10-9 (4ADC13; 5AAC15; 8,760operating cycles/year)

2522722-01-05/19 (Translation of the original operating instructions)

EN

33

Operating Instructions
Safety Relay with IO-Link ESM-CB

Safety engineering characteristics for IEC61508 – low demand

Device type Type A

HFT 1

SIL 3

PF

Davg

Proof-test interval 36 months

Mission time 240 months

Safety engineering characteristics according to EN ISO 13849
depending on the switching current

at 24VDC ≤0.1A ≤1A ≤4A

Category 4

PL e

PFH

D

Mission time 20 years

Switching cycles/year 500,000 50,000 15,000

Safety engineering characteristics for EN 62061

SILCL 3

A demand rate of the safety function of once per month is required for applications in SILCL3.

3.76 x 10

-5

9

1x10

34

(Translation of the original operating instructions) 2522722-01-05/19

15.2. Function and time diagrams

15.2.1. Time diagram for automatic start

Continuous auto start

Ì

S1

S2

Enable

K1

K2

S10/S21

auto

Figure 9:

S1

S2

S11/S21

Enable

K1

K2

man

Autostart pulse

Ì

S1

S2

Enable

K1

K2

S10/S21

auto

Figure 11:

S1

S2

S11/S21

Enable

K1

K2

man

L+

A1

Key:
S1/S2
S10/S21 auto
S11/S21 man
K1/K2
L+
A1
Enable Enable signal via IO-Link

Permanently High signal at S21

Operating Instructions

Safety Relay with IO-Link ESM-CB

15.2.2. Time diagram for manual, monitored start

Ì Start on falling edge at S21

Time diagram for automatic start

Start on rising edge at S21

Time diagram for automatic start

Sensor circuits

Start circuit for automatic start
Start circuit for manual, monitored start

Output circuits

IO-Link supply

Power supply

Figure 10: Time diagram for manual, monitored start

Time diagram for enable principle

Figure 12: Time diagram for enable principle

EN

2522722-01-05/19 (Translation of the original operating instructions)

35

Operating Instructions

0

10

20

30

40

50

60

70

80

I [A ]

TH

² ²

010203040506070

T [°C]

A

45

2

72

I[A]

DC

U [V]

DC

10

0,1

20

50

100

200

500

1000

0,20,5 12 510





Safety Relay with IO-Link ESM-CB

15.3. Derating

15.3.1. Vertical or horizontal installation orientation

The derating curve is applicable under the following conditions:

Ì Mounting on vertical or horizontal mounting rail
Ì Devices mounted without intervening distance
Ì At U

up tomax.30VDC

S

Figure 13: Derating curve

15.4. Load curve

15.4.1. Resistive and inductive loads

Figure 14: Relay load curve – resistive and inductive loads

Key:

 Resistive load L/R=0ms
2 Inductive load L/R=40ms

36

(Translation of the original operating instructions) 2522722-01-05/19

Safety Relay with IO-Link ESM-CB

16. Ordering information and accessories

Tip!

Suitable accessories, e.g. cables or assembly material, can be found at www.euchner.com. To order,
enter the order number of your item in the search box and open the item view. Accessories that can
be combined with the item are listed in “Accessories.”

17. Inspection and service

WARNING

Loss of the safety function because of damage to the device.

Ì In case of damage, the entire device must be replaced.
Ì Only accessories or spare parts that can be ordered from EUCHNER may be replaced.

Regular inspection of the following is necessary to ensure trouble-free long-term operation:

Ì Check the function (see chapter 12. Function test)
Ì Check the secure mounting of the devices and the connections
Ì Check for soiling

Operating Instructions

No servicing is required. Repairs to the device are only allowed to be made by the manufacturer.

NOTICE

The year of manufacture can be seen on the rating plate below the CE marking. The current version
number in the format HW/FW:xx/xxx can also be found on the device.

2522722-01-05/19 (Translation of the original operating instructions)

EN

37

Operating Instructions
Safety Relay with IO-Link ESM-CB

18. Service

If service support is required, please contact:

EUCHNER GmbH + Co. KG

Kohlhammerstraße 16

70771 Leinfelden-Echterdingen

Service telephone:

[phone]

E-mail:

[e-mail]

Internet:

www.euchner.com

38

(Translation of the original operating instructions) 2522722-01-05/19

19. Declaration of conformity

Operating Instructions

Safety Relay with IO-Link ESM-CB

2522722-01-05/19 (Translation of the original operating instructions)

EN

39

Euchner GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
[e-mail]
www.euchner.com

Edition:
2522722-01-05/19
Title:
Operating Instructions Safety Relay with IO-Link ESM-CB
(Translation of the original operating instructions)
Copyright:
© EUCHNER GmbH + Co. KG, 05/2019

Subject to technical modications; no responsibility is accept­ed for the accuracy of this information.