IFM KB User manual

Operating instructions
Capacitive sensor
KB / KD /
KI
11368175 / 0004 / 2022
GB

KB / KD / KI Capacitive sensor
2
Contents
1 Preliminary note ............................................................. 3
1.1 Symbols used.......................................................... 3
2 Safety instructions............................................................ 4
3 Intended use................................................................ 5
4 Installation.................................................................. 6
4.1 Minimum distance for flush installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 Minimum distance for non-flush installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.3 Minimum distance when installing several units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.4 Minimum distance when installing type KD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Electrical connection.......................................................... 8
5.1 Connection systems..................................................... 8
5.1.1 2-wire technology ................................................... 8
5.1.2 3-wire technology ................................................... 8
5.2 Setting the output function for type KGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.3 Setting the output function for type KDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.3.1 2-wire technology ................................................... 9
5.3.2 3-wire technology ................................................... 9
6 Settings.................................................................... 10
6.1 Sensing range.......................................................... 10
6.2 Setting the output function via wire link for type KI with connector. . . . . . . . . . . . . . . . . . . 10
6.3 Setting the output function via wire link for type KIE / KGE . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Operation .................................................................. 11
8 Maintenance, repair and disposal................................................ 12

Capacitive sensor KB / KD / KI
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1 Preliminary note
You will find instructions, technical data, approvals, accessories and further information using the QR
code on the unit / packaging or at www.ifm.com.
1.1 Symbols used
Requirement
Instructions
Reaction, result
[...] Designation of keys, buttons or indications
Cross-reference
Important note
Non-compliance may result in malfunction or interference.
Information
Supplementary note

KB / KD / KI Capacitive sensor
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2 Safety instructions
• The unit described is a subcomponent for integration into a system.
– The system architect is responsible for the safety of the system.
– The system architect undertakes to perform a risk assessment and to create documentation in
accordance with legal and normative requirements to be provided to the operator and user of
the system. This documentation must contain all necessary information and safety instructions
for the operator, the user and, if applicable, for any service personnel authorised by the
architect of the system.
• Read this document before setting up the product and keep it during the entire service life.
• The product must be suitable for the corresponding applications and environmental conditions
without any restrictions.
• Only use the product for its intended purpose (Ò Intended use).
• Only use the product for permissible media.
• If the operating instructions or the technical data are not adhered to, personal injury and/or damage
to property may occur.
• The manufacturer assumes no liability or warranty for any consequences caused by tampering with
the product or incorrect use by the operator.
• Installation, electrical connection, set-up, operation and maintenance of the product must be
carried out by qualified personnel authorised by the machine operator.
• Protect units and cables against damage.

Capacitive sensor KB / KD / KI
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3 Intended use
The unit detects without contact metals, almost all plastics, glass, ceramics, wood, paper, oils,
greases, water and all hydrous materials and indicates their presence by a switching signal.

KB / KD / KI Capacitive sensor
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4 Installation
For flush installation of non-flush units the sensor properties change and the sensor may
remain permanently switched (loss of function).
4.1 Minimum distance for flush installation
3xSn
Fig.1: Minimum distance for flush installation
Sn: Sensing range
4.2 Minimum distance for non-flush installation
1x Sn
3x Sn
Fig.2: Minimum distance for non-flush installation
d: Diameter
Sn: Sensing range
4.3 Minimum distance when installing several units
3x Sn
Fig.3: Minimum distance when installing several units
d: Diameter
Sn: Sensing range

Capacitive sensor KB / KD / KI
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4.4 Minimum distance when installing type KD
Fig.4: Minimum distance for non-flush installation of type
KD
Sn: Sensing range
The distances need to be checked and determined by the users themselves according to
their application.

KB / KD / KI Capacitive sensor
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5 Electrical connection
The unit must be connected by a qualified electrician.
The national and international regulations for the installation of electrical equipment must be
adhered to.
uDisconnect power.
uConnect the unit as specified in the data sheet / type label.
Use a miniature fuse according to the technical data sheet, if specified. Recommendation:
Check the safe functioning of the unit after a short circuit.
5.1 Connection systems
5.1.1 2-wire technology
1
+UB/L1
0V/N
2
3
Fig.5: 2-wire technology
1: Miniature fuse (for AC units)
2: Negative switching
3: Positive switching
5.1.2 3-wire technology
0V
2
3
+UB
Fig.6: 3-wire technology
2: Negative switching
3: Positive switching
5.2 Setting the output function for type KGE
L+
L
/
13
/
24
L+
L
/
13
/
24
Fig.7: Terminal chamber DC PNP/NPN
5.3 Setting the output function for type KDE

Capacitive sensor KB / KD / KI
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5.3.1 2-wire technology
2
4
3
1
5
L+
N
L
L1
2
4
3
1
5
L+
N
L
L1
Fig.8: Terminal chamber AC/DC PNP/NPN
2
4
3
1
5
L+
L
2
4
3
1
5
L+
L
Fig.9: Terminal chamber DC PNP/NPN
5.3.2 3-wire technology
2
4
3
1
5L+
L
2
4
3
1
5
L+
L
Fig.10: Terminal chamber DC NPN
2
4
3
1
5
L+
L
2
4
3
1
5
L+
L
Fig.11: Terminal chamber DC PNP
43
2 1
L+
L
1
4
2
L+
L
1
4
2
Fig.12: Connector DC PNP

KB / KD / KI Capacitive sensor
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6 Settings
6.1 Sensing range
uSet the sensing range via the potentiometer using a screwdriver.
2
1
1: Increase the sensing range
2: Reduce the sensing range
6.2 Setting the output function via wire link for type KI with
connector
2
1
Fig.13: Setting the output function via the link in the connector
1: NO (factory setting)
2: NC
6.3 Setting the output function via wire link for type KIE / KGE
2
1
Fig.14: Setting the output function via the wire link
1: NO (wire link closed, factory setting)
2: NC (wire link open)
uUse an appropriate tool to disconnect the wire link.