BA IRxx.Dxxx analog - Teach-in adjustment

Teach Manual
AlphaProx
Inductive distance measuring sensors
with linear characteristic and teach input
Version: 1.0
General Information
This manual applies to AlphaProx sensors featuring the following teach modes (according to the datasheet):
 1-point analog
 2-point analog
 Factory reset
The assembly instruction also states the available teach modes (on page 3) and the sensor type (on page 2):

Sensors with linear characteristic and teach input (IRxx.DxxL-xxx.xx1E)

Sensors with teach input and linear characteristic on aluminum targets (IRxx.DxxM-xxx.xx1E)
General procedure:
To teach the sensor, the teach wire must be connected to the positive supply voltage of the sensor (+Vs).
Depending on the duration of the contact, different teach levels can be selected. A flashing LED indicates that
the teach procedure has started.
Teach Level 1 (1-Point Teach Analog)
The 1-point teach analog is typically used in applications where a short setup time are desired and the
installation tolerances shall be compensated. Two situations can be distinguished:
1) Minimum distance: During the teach procedure the target is positioned at the minimum distance
relative to the sensor (position “A” in the lower graph). In the application the target moves away from
the sensor. In this situation the sensor will be taught to provide an output signal of 0V (or 4mA) at
position “A”.
10V/20mA
slope
0V/4mA
distance
A
Position target
at distance «A»
Sd max
Connect teach
wire to +Vs (2s).
When yellow
LED starts
flashing with
1Hz, cut
connection
Connect teach
wire shortly
(>0.2s) to +Vs
Wait 4s (yellow
LED keeps
flashing)
Yellow LED
flashes shortly
 Teach-In
finished
Teach procedure: 1-point teach analog (the target is close and moves away from sensor)
2) Maximum distance: During the teach procedure the target is positioned at the maximum distance
relative to the sensor (position “B” in the lower graph). In the application the target moves towards the
sensor. In this situation the sensor should be set to have an output signal of 10V (or 20mA) at
position “B”.
10V/20mA
slope
0V/4mA
Position target
at distance «B»
distance
B Sd max
Connect teach
wire to +Vs (2s).
When yellow
LED starts
flashing with
1Hz, cut
connection
Connect teach
wire shortly
(>0.2s) to +Vs
Within 4s:
Connect teach
wire shortly
(>0.2s) to +Vs
(yellow LED
keeps flashing)
Yellow LED
flashes shortly
 Teach-In
finished
Teach procedure: 1-point teach analog (the target is far away and moves towards the sensor)
When using the 1-point teach analog the sensor will either never reach the maximum output value (case 1) or
the minimum output value (case 2).
en_TA_IRxx.Dxxx (analog).docx
23.03.2016 10:47/lop V1.0 ANW_81196538
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Baumer Electric AG
Frauenfeld, Switzerland
Teach Level 2 (2-Point Teach Analog)
The 2-point teach analog is typically used in applications where two reference positions can be set and where
installation tolerances and tolerances of the target shall be compensated. The 2-point teach analog allows to
change the slope of the sensor output. Depending on the teach order the slope of the sensor’s output signal
will be either rising or falling:
1) Rising slope: To teach the first position, the target is placed at the minimum distance relative to the
sensor (position “A” in the lower graph). For the second position, the target is placed at the maximum
distance (position “B”). For distances smaller than “A” the output signal will be 0V (or 4mA), for
distances larger than “B” the output will be 10V (or 20mA).
10V/20mA
slope
0V/4mA
A
Position
target at
distance «A»
B
Connect
teach wire to
+Vs (4s).
When LED
starts flashing
with 2Hz, cut
connection
distance
Sd_max
Connect
teach wire
shortly (>0.2s)
to +Vs
Position
target at
distance «B»
Connect
teach wire
shortly (>0.2s)
to +Vs
Yellow LED
flashes
shortly
 Teach-In
finished
Teach procedure: 2-point teach analog (rising slope)
2) Falling slope: To teach the first position, the target is placed at the maximum distance relative to the
sensor (position “A” in the lower graph). For the second position, the target is placed at the minimum
distance (position “B”). For distances larger than “A” the output signal will be 0V (or 4mA), for
distances smaller than “B” the output will be 10V (or 20mA).
10V/20mA
slope
distance
0V/4mA
B
Position
target at
distance «A»
Connect
teach wire to
+Vs (4s).
When LED
starts flashing
with 2Hz, cut
connection
A Sd_max
Connect
teach wire
shortly (>0.2s)
to +Vs
Position
target at
distance «B»
Connect
teach wire
shortly (>0.2s)
to +Vs
Yellow LED
flashes
shortly
 Teach-In
finished
Teach procedure: 2-point teach analog (falling slope)
en_TA_IRxx.Dxxx (analog).docx
23.03.2016 10:47/lop V1.0 ANW_81196538
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Baumer Electric AG
Frauenfeld, Switzerland
Teach Level 3 (Factory Reset)
This will restore the default settings the sensor had when leaving the factory. The default settings are stated in
the mounting instructions which are delivered with the sensor.
Connect teach
wire to +Vs (6s).
When yellow
LED starts
flashing with
4Hz, cut
connection
Yellow LED
flashes shortly
 Teach-In
finished
Teach procedure: Factory reset
If the teach wire is connected to +Vs for more than 10s, the teach procedure is aborted and the sensor keeps
its previous settings. This is indicated by an LED flashing frequency of 8Hz.
en_TA_IRxx.Dxxx (analog).docx
23.03.2016 10:47/lop V1.0 ANW_81196538
4/4
Baumer Electric AG
Frauenfeld, Switzerland