Pepperl+Fuchs K-System User manual

ISO9001
K-System
Isolated Barriers
Manual

With regard to the supply of products, the current issue of the following document is applicable:
The General Terms of Delivery for Products and Services of the Electrical Industry, published by the Central
Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most
recent version as well as the supplementary clause: "Expanded reservation of proprietorship"
Worldwide
Pepperl+Fuchs Group
Lilienthalstr. 200
68307 Mannheim
Germany
Phone: [phone] - 0
E-mail: [e-mail]
North American Headquarters
Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, Ohio 44087
USA
Phone: [phone]
E-mail: [email protected].com
Asia Headquarters
Pepperl+Fuchs Pte. Ltd.
P+F Building
18 Ayer Rajah Crescent
Singapore 139942
Phone: [phone]
E-mail: [email protected]
https://www.pepperl-fuchs.com

3
K-System – Isolated Barriers
Contents
2020-12
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Content of this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Target Group, Personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Housing Styles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Color Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.5 Status Indicators of the Isolators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Operating Elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.7 Label Carrier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8 DIN Mounting Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.9 Power Rail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3 Mounting and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.1 Fault Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.2 Fault Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.3 Current and Voltage Standard Signals . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6 Dismounting, Maintenance, and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.1 Dismounting the Isolated Barrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7 Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.1 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.2 Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

K-System – Isolated Barriers
Contents
4
2020-12

K-System – Isolated Barriers
Introduction
2020-12
5
1 Introduction
1.1 Content of this Document
This document contains information that you need in order to use your product throughout
the applicable stages of the product life cycle. These can include the following:
•Product identification
•Delivery, transport, and storage
•Mounting and installation
•Commissioning and operation
•Maintenance and repair
•Troubleshooting
•Dismounting
•Disposal
The documentation consists of the following parts:
•Present document
•Instruction manual
•Datasheet
Additionally, the following parts may belong to the documentation, if applicable:
•EU-type examination certificate
•EU declaration of conformity
•Attestation of conformity
•Certificates
•Control drawings
•Additional documents
Note
This document does not substitute the instruction manual.
Note
For full information on the product, refer to the instruction manual and further documentation
on the Internet at www.pepperl-fuchs.com.

2020-12
6
K-System – Isolated Barriers
Introduction
1.2 Target Group, Personnel
Responsibility for planning, assembly, commissioning, operation, maintenance,
and dismounting lies with the plant operator.
Only appropriately trained and qualified personnel may carry out mounting, installation,
commissioning, operation, maintenance, and dismounting of the product. The personnel
must have read and understood the instruction manual and the further documentation.
Prior to using the product make yourself familiar with it. Read the document carefully.
1.3 Symbols Used
This document contains symbols for the identification of warning messages and of informative
messages.
Warning Messages
You will find warning messages, whenever dangers may arise from your actions.
It is mandatory that you observe these warning messages for your personal safety and in order
to avoid property damage.
Depending on the risk level, the warning messages are displayed in descending order
as follows:
Informative Symbols
Action
This symbol indicates a paragraph with instructions. You are prompted to perform an action
or a sequence of actions.
Danger!
This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.
Warning!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected systems and plants,
or result in their complete failure.
Note
This symbol brings important information to your attention.

K-System – Isolated Barriers
Product Specifications
2020-12
7
2 Product Specifications
2.1 Function
Isolated barriers are isolators used for protection of intrinsically safe circuits in hazardous
areas. In addition to the required current, voltage and power limitation, the isolated barriers
have a galvanic isolation between the field circuit and the controller.
Figure 2.1 Function – isolating, amplifying and transforming signals
The K-System consists of wide range of isolated barriers suitable for mounting on 35 mm
DIN mounting rail. K-System is easy to specify, integrate and expand. Our extensive line of
intrinsic safe isolators for hazardous location applications contains over 150 different models.
Figure 2.2 K-System on Power Rail
Control
system
Sensor
Actuator

2020-12
8
K-System – Isolated Barriers
Product Specifications
2.2 Housing Styles
Depending on the functionality and application, K-System devices have 3 different housing
widths:
•KC devices with 12.5 mm width
•KF devices with 20 mm width
•KF devices or KH devices with 40 mm width
The 3 housing widths versions have the same system characteristics. All devices
can be mounted on the 35 mm DIN mounting rail or the Power Rail. See chapter 2.9
KC Device Housing
Figure 2.3 KC device housing (12.5 mm)
Used for high signal integrity
•Compact 12.5 mm housing
•High packing density with single loop integrity
PWR
1
3
4
II
2
S
OUT/CHK
I
KCD2-SR-
Ex1.LB
2
4
1
3
910
8
6
7
5

K-System – Isolated Barriers
Product Specifications
2020-12
9
KF Device Housing
Figure 2.4 KF device housing (20 mm)
Used for high channel density
•Compact 20 mm housing
•Packing density from 5 mm per channel
Figure 2.5 KF device housing (40 mm)
Used for applications with high functionality
•Digital devices monitor speed, direction of rotation, slip, flow rates and time.
•Analog devices monitor transmitter signals, temperature signals and load cells.
•Configured using keypad or PACTwareTM software, see also manual "Installation
and Configuration Device Type Manager (DTM)"
•AC/DC wide range supply available
KFD2-ER-Ex1.W.LB
13
46
2
5
13 15
12
9
10
7
14
11
8
OUT CHK PWR
sens.
ESC
OK
KFD2-WAC2-
Ex1.D
RS232
PWR
12
FLT
OUT
19 21
15
9
13
7
20
14
8
22 24
18
12
16
10
23
17
11
13 24
6
5

2020-12
10
K-System – Isolated Barriers
Product Specifications
KH Device Housing
Figure 2.6 KH device housing (40 mm)
10 11 12
16 17 18
456
22 23 24
789
13 14 15
123
19 20 21
1
CHK PWROUT
KHA6-SH-
Ex1
S