EUCHNER CKS-K-AS2A-U-C20-PC User manual

EN
Operating Instructions
Key Adapter
CKS-K-AS2A-U-C20-PC (Unicode)

Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
2(translation of the original operating instructions) 123914-01-05/15
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 ......................................................................... 5
5. General safety instructions.................................................................................... 5
6. Function............................................................................................................... 6
6.1. Switching states .............................................................................................................................6
7. Mounting.............................................................................................................. 7
8. Electrical connection ............................................................................................ 8
8.1. Notes about ...........................................................................................................................8
8.2. Setting the AS-Interface address ......................................................................................................9
8.3. Conguration in the AS-Interface safety monitor ................................................................................9
8.3.1. Dual-channel positively driven..............................................................................................9
8.4. Pin assignment key adapter CKS-K-AS2A-U-C20-PC............................................................................9
9. Setup ................................................................................................................. 10
9.1. LED indicator................................................................................................................................10
9.2. Teach-in function for key................................................................................................................10
9.2.1. Preparing device for teach-in operation and teaching-in key .................................................10
9.3. Functional check...........................................................................................................................11
9.3.1. Electrical function test......................................................................................................11
10. System status table ............................................................................................ 12
11. Technical data .................................................................................................... 13
11.1. Technical data, key adapter CKS-K-AS2A-U-C20-PC..........................................................................13
11.1.1. Typical system times........................................................................................................14
11.1.2. Dimension drawing of key adapter CKS-K-AS2A-U-C20-PC....................................................14
11.2. Technical data, key CKS-A-BK1-RD-113461 .....................................................................................15
11.2.1. Dimension drawing...........................................................................................................15
12. Inspection and service ........................................................................................ 16
13. Service .............................................................................................................. 16
14. Declaration of conformity ................................................................................... 17

3
123914-01-05/15 (translation of the original operating instructions)
Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
EN
1. About this document
1.1. Scope
These operating instructions are valid for all CKS-K-AS2A-U-C20-PC. 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 Signicance
Printed document
Internet
www Document is available for download at www.euchner.de
Document on CD
DANGER
WARNING
CAUTION
Safety precautions
Danger of death or severe injuries
Warning about possible injuries
Caution minor injuries possible
NOTICE
Important!
Notice about possible device damage
Important information
Tip 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 and
maintenance CKS-AS-C20
(123913)
Basic information on safe setup and service
Operating instructions
(123914) (this document)
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.de. For this purpose enter the doc.
no. in the search box.

Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
4(translation of the original operating instructions) 123914-01-05/15
2. Correct use
EUCHNER key adapters series CKS-K-AS are operated as a slave on the safety bus AS-Interface Safety at Work
This safety component allows dangerous machine movements to be undertaken as long as a valid key is inserted. A stop
command is triggered if the key is removed during the dangerous machine function.
Before use, a risk assessment must be performed on the machine, e.g. in accordance with:
ÌENISO 13849-1, Safety of machinery. Safety related parts of control systems. General principles for design
ÌEN ISO 12100, Safety of machinery - General principles for design - Risk assessment and risk reduction
ÌIEC 62061, Safety of machinery - Functional safety of safety-related electrical, electronic and programmable electronic
control systems.
Correct use includes compliance with the relevant requirements for installation and operation, for example
ÌENISO 13849-1, Safety of machinery. Safety related parts of control systems. General principles for design
ÌEN 60204-1, Safety of machinery. Electrical equipment of machines. General requirements
The key adapter must be used only in conjunction with the designated CKS keys from EUCHNER. On the use of different
keys, EUCHNER provides no warranty for safe function.
Important!
ÌThe user is responsible for the proper integration of the device into a safe overall system. For this
purpose, the overall system must be validated, e.g. in accordance with ENISO13849-2.
ÌIn the estimation of the PL for the overall system, a maximum value of 100 years can be assumed
for the MTTFdaccording to the limit value in EN ISO 13849-1:2008, section 4.5.2. This corre-
sponds to a minimum value for the PFHdof 2.47x10-8/h.
ÌCorrect use requires observing the permissible operating parameters (see Technical data).
ÌIf a product data sheet is included with the product, the information on the data sheet applies in
case of discrepancies with the operating instructions.
ÌIt is only allowed to use components that are permissible in accordance with the table below.
Table 1: Possible combinations for CES components
Key adapter
Key
CKS-A-BK1-RD-113461
CKS-K-AS2A-U-C20-PC
Key to symbols Combination possible

5
123914-01-05/15 (translation of the original operating instructions)
Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
EN
3. Description of the safety function
The safety function is dened by the related application.
ÌDevice safety function:
- The zero sequence is sent if the key is removed (see chapter 6.1. Switching states on page 6).
ÌSafety characteristics: category, Performance Level, PFHd(see chapter 11. Technical data on page 13).
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety instructions are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety instructions
Safety components fulll personal protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safety 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 safety guard should be checked at suitable intervals as part of the
maintenance schedule.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components perform
a personal protection function.
ÌThe switching operation may be triggered only by keys specially designated for this purpose.
ÌThe key must be completely pulled out of the key adapter in order to switch the safety circuit off
safely.
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 occupational 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. 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 instruc-
tions from www.euchner.de.

Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
6(translation of the original operating instructions) 123914-01-05/15
6. Function
The key adapter CKS can, e.g., be used as a lockout mechanism. As soon as the key is in the key adapter, this is reported
via the AS-Interface bus. Each delivered key possesses a unique electronic coding and so is a unique element in the system
used.
The code of a key cannot be reprogrammed.
If a permissible code is detected, a bit sequence is sent via the AS-Interface bus to signal that the key is inserted.
The zero sequence is sent via the AS-Interface bus when the key is removed from the key adapter. The machine cannot be
started.
If there is a fault in the key adapter, the zero sequence is sent and the LED illuminates.
6.1. Switching states
The detailed switching states for your key adapter can be found in the system status table. All indicator LEDs are described
there.
Key inserted Key removed
FR
CKS
113461
LED indicator Green Yellow
DO, D1, D2, D3 Code sequence Zero sequence

7
123914-01-05/15 (translation of the original operating instructions)
Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
EN
7. Mounting
NOTICE
Risk of damage to equipment and malfunctions as a result of incorrect installation.
ÌTo achieve the degree of protection IP 67, it is necessary to install the key adapter in a clean,
at metal plate at least 2 mm thick and to tighten the screws with a tightening torque of 0.25 ...
0.35Nm.
ÌThe device may be damaged if the tightening torque applied exceeds 0.35Nm.
ÌA suitable strain relief must be provided for the connection cables in order to avoid damage to the
connection sockets or malfunctions.
The key adapter is intended for mounting in control panels with a cut-out measuring 33mmx68mm according to DIN43700.
The device is fastened using screw clamp elements from the rear side of the panel.
1. Insert the key adapter, with seal already bonded in place, into the mounting cut-out from the front.
2. Insert screw clamp elements in the housing of the key adapter from the side up to the end stop and tighten with
0.25…0.35Nm.
3. After mounting, again check the key adapter for rm seating and correct sealing of the front panel.

Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
8(translation of the original operating instructions) 123914-01-05/15
8. Electrical connection
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection.
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.
ÌIn order to avoid EMC interference, the physical environmental and operating conditions at the
installation 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 in case of 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 LED does
not ash), the key adapter must be returned unopened to the manufacturer.
8.1. Notes about
Important!
ÌFor use and operation as per the requirements, a power supply with the feature "for use in
class 2 circuits" must be used.
Alternative solutions must comply with the following requirements:
a) Electrically isolated power supply unit with a max. open-circuit voltage of 30V/DC and a limited
current of max. 8A.
b) 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.

9
123914-01-05/15 (translation of the original operating instructions)
Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
EN
8.2. Setting the AS-Interface address
The address can be set prior to or after assembly.
The AS-Interface address of the key adapter is set using an AS-Interface programming device. Addresses 1 to 31 are valid.
The unit is programmed by connecting the programming device to the ASi connection on the key adapter using a program-
ming cable.
The AS-Interface address can also be set directly on the AS-Interface bus with a master.
The default setting for the address on delivery is 0.
8.3. Conguration in the AS-Interface safety monitor
(see operating instructions for the AS-Interface safety monitor)
8.3.1. Dual-channel positively driven
The key adapter is congured in the AS-Interface safety monitor with the AS-Interface address set as follows:
ÌDual-channel positively driven
ÌWith or without start-up test
8.4. Pin assignment key adapter CKS-K-AS2A-U-C20-PC
View on rear of key adapter
Figure 1: Terminal assignment, AS-Interface connection terminal

Operating Instructions
Key Adapter CKS-K-AS2A-U-C20-PC
10 (translation of the original operating instructions) 123914-01-05/15
9. Setup
9.1. LED indicator
You will nd a detailed description of the signal functions in chapter 10. System status table on page 12.
LED color Signicance
Green Key inserted
Yellow Readiness for operation
Red Fault
9.2. Teach-in function for key
The key must be allocated to the key adapter using a teach-in function before the system forms a functional unit.
The zero sequence is sent during the teach-in operation.
Important!
ÌThe teach-in operation may be performed only if the device functions awlessly. The red LED must
not be illuminated.
ÌThe key adapter disables the code of the previous key if teach-in is carried out for a new key.
Teach-in is not possible again immediately for this actuator if a new teach-in operation is carried
out. The disabled code is released again in the key adapter only after a third code has been
taught-in.
ÌThe key adapter can only be operated with the last key taught-in.
ÌIf the key adapter detects the key that was most recently taught-in when in the teach-in standby
state, this state is ended immediately and the key adapter changes to normal operation.
ÌIf the key to be taught-in is within the operating distance for less than 60s, it will not be activated
and the most recently taught-in key will remain saved.
9.2.1. Preparing device for teach-in operation and teaching-in key
1. Insert new key
2. Connect AS-Interface bus to the key adapter.
¨Teach-in operation starts, the LED ashes green (approx. 1 Hz). During the teach-in operation, the key adapter checks
whether the key is a disabled key. Provided this is not the case, the teach-in operation is completed after approx. 60
seconds, and the green LED goes out. The new code has now been stored, and the old code is disabled.
3. To activate the new key code from the teach-in operation in the key adapter, the key adapter must then be disconnected
from the AS-Interface bus for min. 3seconds.