Microsonic sks-15-CI User Manual

Sensor adjustment with Teach-in procedure

Set window margins

Place object at position ➀

Press push-button for about 3 s until LEDs

flash

simultaneously

both LEDs:

Place object at position ➁

Set rising/falling output

characteristic curve

Press button for about 13 s until LEDs

flash

mutually

flash mutually

green LED:

yellow LED:

flashes

on: rising off: falling

characteristic curve

Enable/disable Teach-in push-

button

Switch off power supply

Reset to factory setting

Switch off power supply

While pressing the push-button

switch on power supply

Keep push-button pressed for

about 3 s until both LEDs flash

simultaneously

green LED: yellow LED:

flashes

on: push-button enabled off: push-button disabled

While pressing the push-button

switch on power supply

Keep push-button pressed for

about 13 s until both LEDs stop

flashing

Press push-button for

about 1 s

Normal operating mode

To change output characteristic press

push-button for about 1 s

Wait for 10 s

To enable/disable Teach-in press

push-button

for about 1 s

Wait for 10 s

Normal operating mode

Operating Instructions

Ultrasonic Sensors

1 3

colour

-U

brown blue

4 2

Com

black white

143

Sensor disabled Sensor disabled

Start

-U

Set analogue output

Further settings

sks-15/CI sks-15/CU

Ultrasonic proximity switch with one analogue output

Product Description

The sks sensor offers a non-contact measurement of the distance to an object which must be positioned within the sensor’s detection zone. Depending on the set window limits, a distance-proportional analogue signal is output. Via the push-button, the detect distance and operating mode can be adjusted (teach-in). Two LEDs indicate operation and the state of the output.

Safety Notes

■ Read the operating instructions

prior to start-up.

■ Connection, installation and

adjustment works may only be carried out by expert personnel.

■ No safety component in

accordance with the EU Machine Directive.

Proper Use

sks ultrasonic sensors are used for non-contact detection of objects.

Installation

■ Mount the sensor at the installa-

tion site. Maximum torque of screws: 0,5 Nm

■ Connect a connection cable to the M8 device plug.

Fig. 1: Pin assignment with view onto sensor

plug and colour coding of the microsonic connection cable

Start-Up

■ Connect the power supply.

■ Carry out the adjustment in

accordance with the diagram.

Factory Setting

■ Rising analogue characteristic

curve between the blind zone and the operating range.

Synchronization

If several sensors are mounted close to another, they should be synchronized with each other. This is done by an externally provided synchronisation signal.

■ Apply a square-wave signal to the

sync-input with pulse width ti and repetition rate tp (Fig. 3 and technical data).

Any amount of sensors may be synchronized with this external synchronisation signal. A high level on the sync-input will deactivate the sensor.

Fig. 3: External synchronization signal

Maintenance

microsonic sensors are maintenancefree. In case of excess caked-on dirt we recommend cleaning the white sensor surface.

Notes

■ The sks sensor uses an internal

temperature sensing element to compensate the temperature depending speed of sound. In the first 45 seconds after power on every time the sks tests this temperature compensation and afterwards sets the analogue output according to the compensated distance value.

■ The temperature compensation

automaticly adjusts to the actual mounting conditions if the sensor outputs current of 11 to 13 mA or voltage of 4.4 to 5.6 V for at least 30 minutes after switching on power supply.

■ The sks sensor has a blind zone,

within which distance measurements are not possible.

■ In the normal operating mode, an il-

luminated yellow LED signals that the object is within the adjusted window limits.

■ If the push-button is not pressed

for 30 seconds during the teach-in setting, the settings made hitherto are deleted.

■ The sensor can be reset to its fac-

tory setting (s. »Further settings«).

Technical data

blind zone

operating range

maximum range

angle of beam spread

20 mm

150 mm

250 mm

see detection zone

transducer frequency

resolution, sampling rate

reproducibility

detection zones

for different objects:

The dark grey areas are determined

with a thin round bar (10 mm dia.)

and indicate the typical operating range of a sensor. In order to obtain the light grey areas, a plate (100 x 100 mm) is introduced

into the beam spread from the side.

In doing so, the optimum angle between

plate and sensor is always employed.

This therefore indicates the maximum

detection zone of the sensor.

It is not possible to evaluate ultrasonic

reflections outside this area.

380 kHz

0,056 mm

± 0,15 %

accuracy

operating voltage U

voltage ripple

±1% (temperature drift internally compensated)

15 - 30 V DC, reverse polarity protection

±10 %

no-load current consumption

housing

< 30 mA

ABS

ultrasonic transducer: polyurethane foam,

epoxy resin with glass content

class of protection to EN 60 529

norm conformity

type of connection

controls

IP 67

EN 60947-5-2

4-pin M8 initiator plug

Teach-in push-button

indicators

synchronisation

pulse width synchroniszation signal t

LED green (operation)

LED yellow (object in the window)

external

> 150 µs

repetition rate synchronization signal t

operating temperature

storage temperature

weight

8 ms < tp < 1 s

-25°C to +70°C

-40°C to +85°C

8 g

response time

time delay before availability

norm conformity

24 ms

< 300 ms

EN 60947-5-2

order no.

current output 4-20 mA

order no.

sks-15/CI

RL ≤ 500 Ω, rising/falling characteristic

sks-15/CU

voltage output 0-10 V

RL ≥ 100 kΩ, short circuit proof,

rising/falling characteristic

1 analogue output

-U

Com

U | I

sks-15...

8 cm 4 cm 0 cm 4 cm 8 cm

0 cm

4 cm

8 cm

12 cm

16 cm

20 cm

24 cm

Round bar

Plate

microsonic GmbH • Hauert 16 • D-44227 Dortmund • Tel: +49 2 31 / 97 51 51-0 • Fax: +49 2 31 / 97 51 51-51 • E-Mail: info@microsonic.de • www.microsonic.de The content of this document is subject to technical changes. Specifications in this document are presented in a descriptive way only. They do not warrant any product features.

MV-DO-142528-444239

89/336/EEC