Aventics ST4-2P, Руководство по эксплуатации

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5 AVENTICS | ST4-2P |
R412012414–BAL–001–AE
3 Device description
The ST4-2P sensor is a magnetic position sensor with two
switching points. It is intended for end position inquiry and
intermediate position detection on pneumatic cylinders and
detects positions without any contact.
Using the teach-in button, switching points can be set
exactly for all piston positions.
4 Delivery contents
W
One ST4-2P sensor
W
One hexagon screwdriver wrench size 1.3
W
Operating instructions
5 Assembly and
commissioning
Mechanically adjusting the ST4-2P
sensor
See on page 20.
1. Set your handling device to the center of the working
stroke.
2. Insert the sensor (1) from above, centred on the piston
stroke, into the C-groove (2).
3. Align the sensor to the center of the sensor stroke
(observing the center of the sensor) and tighten the
mounting screw (3).
Tightening torque: M
A
= 8
+5
Ncm.
To store switching points, see below.
Electronically adjusting the ST4-2P
sensor
1. Set your handling device to the center of the working
stroke.
2. Connect the sensor to a suitable operating voltage (see
“Technical data” on page 6).
3. Press and hold the teach-in button for 8-10 s until both
LEDs flash alternately.
4. Insert the sensor (1) from above in the C-groove (2),
slide the sensor in the C-groove until both LEDs are on
simultaneously, and tighten the mounting screw (3).
Tightening torque: M
A
= 8
+5
Ncm.
Storing switching points
See on page 20.
Commissioning may only be carried out by qualified
electrical or pneumatic personnel or an instructed person
under the direction and supervision of qualified personnel
(see also “Personnel qualifications”).
1. Connect the sensor to a suitable operating voltage (see
“Technical data”).
2. Teach in the working stroke (two switching points) as
follows (teach in):
a) Set the first piston position for the working stroke
(switching point 1).
b) Press and hold the teach-in button for 3 seconds
(see ,
A).
LED 1 will flash.
c) Release the teach-in button.
Switching point 1 is stored,
LED 2 will flash (for switching point 2).
d) Set the second piston position for the working stroke
(switching point 2)
(see ,
B).
e) Press and hold the teach-in button for 1 second (see
, B).
Switching point 2 is stored.
Checking the stored switching points
1. Move the piston to the position of switching point 1.
The switching point 1 LED lights up: switching point
recognized (see
, C).
LED does not light up: switching point not recognized.
O
If the switching point is not recognized, check the
operating conditions and readjust.
2. Move the piston to the position for switching point 2.
The switching point 1 LED goes out and the switching
point 2 LED lights up: switching point recognized (see
, C). If the first LED does not go out or the second LED
does not light up: switching point not recognized.
O
If the switching point is not recognized, check the
operating conditions and readjust.
WARNING
Danger of injury if assembled under pressure!
Injuries and damage to the device or system components
may occur if the pressure is not switched off before
beginning assembly.
O
Make sure that the relevant system part is not under
pressure before you assemble the product.
The sensor must be switched on outside of any
magnetic fields that could influence it.
2
WARNING
Risk of uncontrolled actuator movements when the
pneumatics are switched on!
There is a danger of personnel injury if the system is in
an undefined state.
O
Put the system in a defined state before switching it
on.
If the switching point is outside the detection range
of the sensor, the teach-in process will be
interrupted. In this case, the LED will flash in short
intervals.
If the teach-in process is not complete, it will be
interrupted after 90 seconds (timeout). The last
stored switching points will remain active.
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