Sensors, Pneumatics, Motors - Palamides delta 151 Manual Instruction

Sensors, Pneumatics, Motors

11 Sensors, Pneumatics, Motors
11.1 The sensors used and their function
Article Description
No.
61.00002 Reflection light
scanner TW10-
40mm
Reflection light
scanner with
background
shielding
B8, B9....
61.00025 Rotary pulse
encoder
61.00026
63.00117 Inductive proximity
switch
Subject to change without notice
Functional principle
A transmitter sends out light in the
infrared range, which reflects from the
detected object and is sent back to the
receiver in the light scanner.
Objects, which are more than 40 mm
away are suppressed by this.
When an object is detected, the LED
on the scanner lights up and the output
returns 24V DC.
.
Rotary pulse encoders convert
rotational turns into impulses. These
signals can be evaluated so that
conclusions can be drawn about the
paths covered.
The encoders fitted by palamides are
equipped with two impulse tracks,
which also enable recognition of the
direction of rotation (left/right turning).
The second track (B-track) is placed at
90° to the A-track.
Encoders with 32 and 200 impulses
respectively are used on the delta. As
the sensors do not have any sort of
display, their function can be checked
under service / TPU counter.
If a metal part penetrates the working
area of the sensor, losses occur in the
eddy current of the magnetic field
shown by the sensor. These are
recognised by the sensor and it sends
a signal with 24V DC to its output.
At the same time its status is signalled
to the terminal by a LED. Generally,
the nearer the detected metal object is,
the quicker the sensor switches.
11
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