EUCHNER EKS2 User manual
EN
Operating Instructions
Electronic-Key-System for selection of operating mode
EKS2
Operating Instructions
Electronic-Key-System EKS2
2(translation of the original operating instructions) 2546099-01-10/21
Contents
1. About this document............................................................................................. 3
1.1. Scope............................................................................................................................................3
1.2. Target group ..................................................................................................................................3
1.3. Key to symbols...............................................................................................................................3
1.4. Supplementary documents ..............................................................................................................3
2. Correct use .......................................................................................................... 4
3. Description of the safety function .......................................................................... 5
4. Exclusion of liability and warranty ......................................................................... 7
5. General safety precautions ................................................................................... 7
6. Function............................................................................................................... 7
7. Smartcards .......................................................................................................... 8
8. Mounting.............................................................................................................. 8
9. Electrical connection ............................................................................................ 9
9.1. General notes.................................................................................................................................9
9.2. Notes about ...........................................................................................................................9
9.3. Terminal assignment .....................................................................................................................10
10. Setup ................................................................................................................. 10
11. Operation........................................................................................................... 10
12. Status and fault displays ..................................................................................... 11
12.1. Smartcard status and fault displays................................................................................................11
12.2. EKS2 status and fault displays.......................................................................................................12
12.3. Firmware status display.................................................................................................................13
13. Technical data .................................................................................................... 14
13.1. Technical data for EKS2 ................................................................................................................14
13.2. Radio frequency approvals.............................................................................................................15
13.3. Dimension drawing for EKS2…......................................................................................................16
14. Inspection and service ........................................................................................ 17
15. Service .............................................................................................................. 17
3
2546099-01-10/21 (translation of the original operating instructions)
Operating Instructions
Electronic-Key-System EKS2
EN
1. About this document
1.1. Scope
These operating instructions apply to all EKS2-C-USB-M-I1S1-B1-… from version V1.0.0. These operating instructions, the
supplementary documents 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
the following expertise:
Ìspecialist knowledge in handling safety components
Ìknowledge about the applicable EMC regulations
Ìknowledge about the applicable regulations on operational safety and accident prevention
1.3. Key to symbols
Symbol/depiction Meaning
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
Operating instructions
(2546099) (this document)
Documentation
(HTML) .NET library documentation
Assembly instructions
(2551025) Assembly instructions
Description of
testdmgmori.py Use of the pyekslibrary
Important!
Always read all documents to gain a complete overview of safe installation, setup and use of the device.
Operating Instructions
Electronic-Key-System EKS2
4(translation of the original operating instructions) 2546099-01-10/21
2. Correct use
The device is used in combination with a touch panel or softkeys as part of a higher-level overall system for selection of
operating mode.
Before the device is used, a risk assessment must be performed on the machine, e.g. in accordance with the following
standards:
ÌENISO13849-1
ÌENISO12100
ÌIEC62061
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1
ÌEN60204-1
The device may be operated only with suitable smartcards and the EUCHNER connection components. On the use of unsuit-
able smartcards or other connection components, EUCHNER provides no warranty for safe function.
Important!
ÌThe user is responsible for the proper integration of the device into a safe overall system. For this
purpose, the overall system must be validated, e.g. in accordance with ENISO13849-2.
ÌUse only components that are permissible in accordance with the table below.
Table 1: EKS components
Component Order number Euchner ID no. Description
Reader EKS2-… 3784024 166521 Reader
Smartcard
3875478
3875479
3860313
3875480
166173
166174
166175
166176
Smartcard for selecting an operating mode
3875481 166177 Smartcard for selecting an operating mode and the Service mode
3796652 166178 Smartcard for selecting an operating mode and the device conguration
.NET library 2546104 2546104 EKS class library
testdmgmori.py Use of the pyekslibrary
5
2546099-01-10/21 (translation of the original operating instructions)
Operating Instructions
Electronic-Key-System EKS2
EN
3. Description of the safety function
Devices from the series EKS2-… feature the following safety function:
Safe switching and monitoring of the selected operating mode
(subsystem of the safety function selection of operating mode according to ENISO13849-1)
ÌSafety function:
- Safe selection of an operating mode using a touch panel
- Safe detection of a change of operating mode
ÌSafety characteristics: category, Performance Level, PFHD (see chapter 13. Technical data on page 14).
Selection of operating mode
As a subsystem, the device fullls the subfunctions of an operating mode selector that controls the machine’s safety functions
required for the selected operating mode. A failure or malfunction of selection of operating mode can lead to the safety
functions of the selected operating mode not being activated in the machine.
A system for selection of operating mode can be subdivided into the following subfunctions according to ENISO16090-1,
for example:
ÌAccess system
ÌSelection system
ÌActivation system
Incorrect behavior or an error in the selection system subfunction can lead to the safety function of the overall selection of
operating mode system failing.
The device fullls the access system subfunction and, in combination with a touch panel, the selection systemsubfunction.
The safety function is ensured by a two-stage interaction between the device and the touch panel. This involves prompting
conrmation of the selection in a new, additional dialog.
Reading card
Checking selection
Checking conrmation
Setting outputs to safe
control system
Selecting operating
mode
Conrming selected
operating mode
Activating new
operating mode
EKS2 Touch panel Safe control system
Fig. 1: Two-stage interaction between EKS2 and touch panel
Operating Instructions
Electronic-Key-System EKS2
6(translation of the original operating instructions) 2546099-01-10/21
The data structure of selection of operating mode is hierarchically structured for the individual authorization levels, and it
changes values accordingly in the individual polling levels.
MSO1 MSO3 MSO4 MSO SE
MSO2
0FF0H 3333H 33CCH 3C3CH 0F0FH
MSO1 MSO3 MSO4 MSO SE
MSO2
MSO1 MSO3 MSO4 MSO SE
MSO2
3333H 33CCH 3C3CH 0F0FH 0FF0H
33CCH 3C3CH 0F0FH 0FF0H 3333H
MSO1 MSO3 MSO4 MSO SE
MSO2
0F0FH 0FF0H 3333H 33CCH 3C3CH
Setting outputs to safe control system
Selecting operating mode
Checking selection
Conrming selected operating mode
Fig. 2: Data structure of selection of operating mode
To fulll the safety function of the overall selection of operating mode system, a suitable activation system must be connected
to the safe outputs of the device. A suitable activation system is a safe control system that can process 1-of-n signals, for
example.
The failure probability of the overall system’s safety function can therefore be calculated as follows:
PFHD,tot. = PFHD,EKS2 + PFHD,Control
EKS2
PFHD,EKS2 PFHD,Control
HMI
touch panel
Access system Activation system,
e.g. control system
Selection system 1 of n
7
2546099-01-10/21 (translation of the original operating instructions)
Operating Instructions
Electronic-Key-System EKS2
EN
4. Exclusion of liability and warranty
Liability or warranty is ruled out in case of:
ÌIncorrect use
ÌFailure to comply with the operating instructions and the safety regulations therein
ÌFailure to perform the required check for correct function
ÌChanges to the device
5. General safety precautions
Safe operating mode selectors fulll personnel protection functions. Incorrect installation of the subsystem or tampering
can lead to fatal injuries to personnel.
Observe the following safety regulations to prevent failure of the personnel protection function:
ÌVisually inspect all components for damage prior to mounting and connection. Do not use damaged components; le a
complaint with the manufacturer instead.
ÌDo not modify or replace plugs or cables.
ÌCheck the safe function of the device as a subsystem, particularly:
- each time after initial setup
- each time after replacing the device
- each time after correcting an error
- in accordance with the machine’s maintenance schedule
6. Function
The device is part of a higher-level overall system for selection of operating mode on safe control systems.
The device consists of a reader and various smartcards. Authorizations for selecting various operating modes are stored
on the smartcards.
After being read in the reader, the smartcard is checked for validity based on specic parameters. If the smartcard is rec-
ognized as valid, the operating modes available for selection can be displayed on the machine’s touch panel.
The selected operating mode is transmitted via the device’s safety outputs FO1A to FO1F to the safe control system of the
machine acting as the activation system. The safe control system must be capable of processing 1-of-n signals.
Each 1-of-n state maps an operating mode MO (Mode of Operation):
FO1A FO1B FO1C FO1D FO1E FO1F
MO1 1 0 0 0 0 0
MO2 0 1 0 0 0 0
MO3 0 0 1 0 0 0
MO4 0 0 0 1 0 0
MO Service 0 0 0 0 1 0
Safe state 1) 2) 000000
Safe state 1) 2) Two or more outputs: 1
1) Operating mode change: state duration from 2 to max. 60 ms; safe state: state duration longer than 60 ms.
2) The subsystem EKS2 is in the safe state. An error must be reported to the control system.
The LED illumination of the card holder indicates the status and error messages (see chapter 12. Status and fault displays
on page 11).
Operating Instructions
Electronic-Key-System EKS2
8(translation of the original operating instructions) 2546099-01-10/21
7. Smartcards
Various smartcards are available for the device. They differ regarding the type and scope of authorization for selection of
operating mode MO.
Order number Smartcard Selectable operating modes
3875478 Mode 1 (MO1) Automatic mode
3875479 Mode 2 (MO2) Automatic mode
Setup
3860313 Mode 3 (MO3)
Automatic mode
Setup
Automatic mode with manual intervention
3875480 Mode 4 (MO4)
Automatic mode
Setup
Automatic mode with manual intervention
Automatic mode with manual intervention without enabling device
3875481 Mode Service (MO Service)
Automatic mode
Setup
Automatic mode with manual intervention
Automatic mode with manual intervention without enabling device
Service mode
3796652 Mode Master (MO1) Automatic mode
8. Mounting
Assembly instructions are included with the device and form part of these operating instructions.
Observe the following points during mounting:
ÌInstall the reader on the side of the touch panel. If the reader is installed on the upper or lower frame of the touch panel,
make sure that:
- no dust or dirt particles can enter the card holder from above.
- vibrations cannot cause the smart card to fall out of the reader.
ÌEnsure adequate ventilation for the device to maintain the ambient temperature (see 13. Technical data on page 14).
ÌMaintain a distance of at least 2.5 mm from metal surfaces.
ÌFasten screws with a tightening torque of 1 ±0.15 Nm.
9
2546099-01-10/21 (translation of the original operating instructions)
Operating Instructions
Electronic-Key-System EKS2
EN
9. Electrical connection
9.1. General notes
WARNING
Loss of the safety function due to incorrect electrical connection.
ÌEnsure that at least four of the safety outputs FO1A to FO1F can be evaluated by a safe control
system at all times.
ÌEnsure that the safe control system can process 1-of-n signals.
ÌLay the connecting cables with protection to prevent short circuits.
ÌDo not lay connecting cables in the immediate vicinity of sources of interference.
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect electrical connection.
ÌEnsure that all circuits connected to the device comply with the regulations for low voltages with
safe electrical isolation (SELV/PELV).
ÌEnsure that power devices, which are a powerful source of interference, are installed in a separate
location away from the input and output circuits for signal processing. The cables of the safety
circuits must be installed as far away as possible from the cables of the power circuits.
ÌEnsure that, to avoid EMC interference, the physical environmental and operating conditions
at the installation site of the device comply with the requirements according to the standard
EN60204-1:2016, section 4.4.2 (EMC).
ÌPay attention to any interference elds from devices such as frequency converters or induction
heating systems. Observe the EMC notes in the manuals from the respective manufacturer.
9.2. Notes about
Important!
ÌThis device is intended to be used with a Class 2 power source in accordance with UL1310.
As an alternative an LV/C (Limited Voltage/Current) power source with the following properties can
be used:
This device shall be used with a suitable isolating source in conjunction with a fuse in accordance
with UL248. The fuse shall be rated max. 3.3 A and be installed in the max. 30 V DC power supply
to the device in order to limit the available current to comply with the UL requirements. Please note
possibly lower connection ratings for your device (refer to the technical data).
ÌFor use and application as per the requirements of 1) a connecting cable listed under the UL
category code CYJV/7 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).
Operating Instructions
Electronic-Key-System EKS2
10 (translation of the original operating instructions) 2546099-01-10/21
9.3. Terminal assignment
Connection terminal
FO1F -
FO1E MO Service
FO1D MO4
FO1C MO3
FO1B MO2
FO1A MO1
0V Ground 0 V
UB Operating voltage 24 V DC
USB interface
The device is connected to the touch panel using the permanently mounted USB cable.
10. Setup
Important!
When programming the evaluation in the safe control system, ensure that, when the operating mode
is selected, exactly one output is set at the safety outputs FO1A to FO1F for transmission to the safe
control system via 1-of-n evaluation.
This means:
ÌIf more than one output or no output is set, there is an error in the device or in the cable installa-
tion. The safe control system must be capable of reacting to such errors in accordance with the
machine’s risk assessment.
ÌWhen the device is reset, the setting of an output can be delayed by up to 5 s. Operating mode
MO1 is selected automatically after the reset.
11. Operation
Important!
If the smartcard is removed from the reader in operating mode MO4 or Service mode, the selected
operating mode will be retained for up to 15 s:
ÌIf the same smartcard is re-inserted into the reader within 15 s, the corresponding operating mode
will be regarded as still being selected.
ÌIf no smartcard is inserted into the reader within the 15 s, the device will automatically switch to
operating mode MO1.
ÌIf a different smartcard is inserted into the reader within the 15 s, the device will immediately
switch to operating mode MO1.
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