IFM Electronic efector150 User manual

Operating instructions
Capacitive sensors
KF
704032/01 12/2007
UK

2
Contents
1 Safety instructions ........................................................................ 3
2 Functions and features................................................................. 4
3 Installation .................................................................................... 4
3.1 Notes on flush and non-flush installation................................... 4
4 Electrical connection..................................................................... 5
4.1 Wiring ........................................................................................ 5
5 Operating and display elements................................................... 5
6 Operating modes.......................................................................... 6
6.1 Adjustment................................................................................. 6
7 Operation...................................................................................... 6
8 Maintenance, repair and disposal................................................. 6
9 Terms............................................................................................ 7

3
UK
Preliminary note
Operating elements are indicated as follows:
Example: [OUT OFF] = pushbutton "OUT OFF"
An instruction is indicated by "►":
Example: ►Check whether the unit operates correctly.
A reaction to the action is indicated by ">":
Example: > yellow LED lights.
1 Safety instructions
Please read the product description prior to set-up of the unit. Ensure that the
product is suitable for your application without any restrictions.
The unit conforms to the relevant regulations and EC directives.
Improper or non-intended use may lead to malfunctions of the unit or to
unwanted effects in your application.
That is why installation, electrical connection, set-up, operation and
maintenance of the unit must only be carried out by qualified personnel
authorised by the machine operator.
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4
2 Functions and features
The capacitive sensor detects without contact metals, almost all plastics,
glass, ceramics, wood and paper and indicates their presence by providing a
switched signal.
Not suited for level detection.
3 Installation
3.1 Notes on flush and non-flush installation
Install the unit using the supplied nuts.
flush
non flush
Adhere to the minimum distances when mounting several sensors of the same
type
•
•
►
1:
2:
►
3xs
n
1
1xs
n
3xd3xd d
3xs
n
2
3x SnD3xDD

5
UK
4 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.
Voltage supply to EN50178, SELV, PELV
Disconnect power.
Connect the unit.
4.1 Wiring
L+
L
1
4
3
4
1
3
positive switching (type...PKG...)
4
1
3
1
L+
L
1
4
3
2
L+
L
1
4
3
negative switching (type ...NKG...)
NO
NC
5 Operating and display elements
12
LED
potentiometer
►
►
1:
2:
1:
2:

6
6 Operating modes
6.1 Adjustment
NO NC
place the target material in the safe
sensing range
LED is lit
►
>
place the target material in the safe
sensing range
LED goes out
►
>
decrease the sensing range
LED goes out
►
>
decrease the sensing range
LED is lit
►
>
increase the sensing range
LED is lit
►
>
increase the sensing range
LED goes out
►
>
i
Do not increase the sensing range beyond Sn.
7 Operation
Check whether the unit operates correctly. Bring about a sensor response by
taking suitable measures.
Display by LEDs:
LED yellow OFF: switching output disabled
LED yellow ON: switching output enabled
Do not operate units with high field intensity (e.g. walkie-talkies) at close range to
the sensor.
8 Maintenance, repair and disposal
The operation of the unit is maintenance-free. To ensure a correct function:
Keep the sensing face and a clear space, if any, free from deposits and foreign
bodies.
When removing the unit or changing the medium, a new adjustment might be
necessary.
It is not possible to repair the unit.
After use dispose of the unit in an environmentally friendly way in accordance with
the applicable national regulations.
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7
UK
9 Terms
Active zone / active face
Area above the sensing face in which the sensor reacts to the approach of the
target.
Output function
Normally open: Object within the active zone - output switched.
Normally closed: Object within the active zone - output blocked.
Programmable: Choice between normally closed or normally open.
Positive switching: Positive output signal (to L-).
Negative switching: Negative output signal (to L+).
Power-on delay time
The time the sensor needs to be ready for operation after application of the
operating voltage (in the millisecond range).
Hysteresis
The difference between the switch-on and the switch-off point.
Leakage current
Current for the internal supply of 2-wire units, also flows through the load when the
output is unswitched.
Current consumption
Current for the internal supply of 3-wire DC units.
Switch point drift
The shifting of the switch point owing to changes of the operating conditions (e.g.
temperature, pressure, air humidity).
Short-circuit protection
ifm sensors which are protected against excessive current by means of a pulsed
short-circuit protection. The inrush current of incandescent lamps, electronic relays
and low resistance loads may cause this protection to cut in and turn the sensor
off!

8
Operating voltage
The voltage range in which the sensor functions safely. A stabilised and smoothed
direct voltage should be used! Take into account residual ripple!
Technical data and further information at
www.ifm.com →Select your country →Data sheet direct: