Microsonic zws-7/CD/QS Operating Instructions

The switched output is set in depen-
dence of the adjusted detect dis-

Ultrasonic Sensors

tance.
Due to the short response time and
the high switching frequency these
zws sensors are applicable to the de-
tection of quick processes. For the
zws-7, the faster variant, please see
the notes for installation and operati-
on.
Via the push-button, the detect dis-
Operating Instructions tance and operating mode can be
adjusted (teach-in). Two LEDs indi-
zws-7/CD/QS zws-7/CE/QS
cate operation and the state of the
zws-15/CD/5ms.a zws-15/CE/5ms.a
switched output.
Fast ultrasonic proximity switch
with one switched output

Safety Notes

Read the operating instructions

Product Description

prior to start-up.
The zws sensor offers a non-contact Connection,
measurement of the distance to an adjustment works may only be
object which must be positioned carried out by expert personnel.
within the sensor's detection zone. No safety component in accor-
Sensor adjustment with Teach-in procedure
Set detect point Set window mode
Place object at position Place object at position
Press push-button for about Press push-button for about
3 s until LEDs flash 3 s until LEDs flash
simultaneously
both LEDs: flash both LEDs:
mutually
Place object at position
Press push-button for Press push-button for
about 1 s
dance with the EU Machine Direc-
tive.

Installation

Mount the sensor at the installa-
tion site with the aid of the
enclosed mounting plate.
Maximum torque of attachment
screw: 0,5 Nm
Fig. 1: Attachment with mounting plate
installation and
Connect a connection cable to the
M8 device plug.
Avoid mechanical load on the con-
nector.
Set two way reflective
barrier
Place reflector at position
Press push-button for about
3 s until LEDs flash
simultaneously simultaneously
flash both LEDs: flash
mutually mutually
Press push-button for
about 1 s about 10 s
Normal operating mode
Set switched output

Start-Up

Connect the power supply.
Carry out the
accordance with the diagram.
2 4
1 3
1 +U
B
3 -U
B
4 D
2
Sync
Fig. 2: Pin assignment with view onto sensor
plug and colour coding of the
microsonic connection cable

Factory Setting

Operation with one detect point
Switched output on NOC
Detect points at operating range
Enable/disable Teach-in
Set NOC/NCC
Switch off power supply
While pressing the push-
button switch on power
Press button for about 13 s Keep push-button pressed
until LEDs flash for about 3 s until both
mutually LEDs flash simultaneously
green LED: flashes green LED:
yellow LED: on: NOC yellow LED:
off: NCC
To change output characte- To enable/disable Teach-in
ristic press push-button press push-button
for about 1 s
Wait for 10 s

Operating modes

Three operating modes are available
adjustment in for the switched output:
Operation with one detect point
The switched output is set if the ob-
ject falls below the set detect point.
Window mode
The switched output is set if the ob-
colour
ject is within the set window mar-
brown
gins.
blue
Two-way reflective barrier
black
white
The switched output is set if the ob-
ject is between sensor and reflector.

Synchronization

You can synchronize as many sensors
as you like.
Apply a square-wave signal to the
sync-input with pulse width t
repetition rate t (Fig.3
p
Technical Data).
Reset to factory setting
push-button
Switch off power supply
While pressing the push-
button switch on power
supply supply
Keep push-button pressed
for about 13 s until both
LEDs stop flashing
flashes
on: push-button
enabled
off: push-button
disabled
for about 1 s
Wait for 10 s
Normal operating mode
Further settings
Sensor disabled Sensor disabled
+U
B
Start
-U
B
t t
i p
Fig.3: External synchronization signal
A high level on the sync-input will
deactivate the sensor.

Checking operation mode

In normal mode shortly press the
push-button.
The green LED stops shining for one
second, then it will show the current
operating mode:
1 x flashing = operation with one
switching point
2 x flashing = window mode
and 3 x flashing = reflective barrier
i
and After a break of 3 s the green LED
shows the output function:
1 x flashing = NOC
2 x flashing = NCC

Maintenance

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

Notes

The zws sensor has a blind zone,
within which distance measure-
ments are not possible.
In the normal operating mode, an il-
luminated yellow LED signals the
switched output is switched
through.
The sensor got to know the
distance to the object at the teach-
in stage. For objects that move into
the sound field from the side, an 8-
10 % greater distance should be
set for reliable object detection by
the sensor.
Fig. 4: Setting the switching point
The zws-7 has a very short measu-
rement cycle time of only 2 ms.
Under unfavourable conditions
this can lead to the sensor wrongly