IFM Electronic Efector150 Manuel utilisateur

Operating instructions

Capacitive sensors

704032/01 12/2007

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

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.

•

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

•

►

3xs

1xs

3xd3xd d

3xs

3x SnD3xDD

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+

positive switching (type...PKG...)

L+

negative switching (type ...NKG...)

5 Operating and display elements

LED

potentiometer

►

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

►

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.

•

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!

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:

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