5.1.2.1
Symbols on the Display
Symbol
Description
Display of binary signals set/not set (in example A, B: set - C: not set)
1)
Threshold Value Comparator
Window Comparator
[SP]
Switching point
[SP][min]
Lower switching point
[SP][max]
Upper switching point
[HY]
Hysteresis
[NO]
Switching characteristic of normally open contact
[NC]
Switching characteristic of normally closed contact
[min]/[max]
Minimum/maximum input value (in A/B/C)
[Delay]
Switch-off delay for the numerical display
[Analogue]
Settings for analogue output
[TeachIn]
Teach mode active
[Option]
Options for spurious pulse suppression (Off, 1, 2)
[Lock]
Security code active (block to prevent unauthorised parameterisation)
[Spec]
Special menu (SPEC) active
[di.]
Activation/deactivation of the numerical display
Switching off the display backlight
[PnP]/[nPn]
Switching the switching output
[P2-]
Allocation of the switching output for Pin 2 with the binary signal OutB or OutC
[P4-]
Allocation of the switching output Pin 4 with the binary signal OutA or OutC
[rP.]
Replicate settings to another device
[F.]
Set the time constant of the low-pass filter for analogue output
[0..10]/[1.. 5]
Switching of the voltage output
[H.]
Scaling of the analogue output end value
[L.]
Scaling of the analogue output start value
[----]
Numerical display is switched off
[IOL]
Flashes 3x when Edit mode is blocked by IO-Link
[SUP.P]
Error message: Supply pressure is outside the set limits (SP
min
/SP
max
)
[CLER]
Device has been reset to factory settings
Graphical display of the current distance-correlated value for InA and InB in relation
to the set switching point
–
The bar graph for InA is always active.
–
The bar graph for InB is only active if the binary signal OutB is assigned to the
switching output at Pin 2.
1) "A" flashes when IO-Link communication is active
Tab. 3 Symbols on the Display
5.1.2.2
Bar Graph on the Display
Display
Description
Segment at the bottom left and
[A] flash
–
INFO mode active.
–
7-segment display shows the input value
InA.
Segment at the bottom left and
[A] illuminate, [min] or [max]
flash.
–
SHOW mode active.
–
7-segment display shows the minimum or
maximum value InA.
Segment at the bottom right
and [B] flash.
–
INFO mode active.
–
7-segment display shows the input value
InB.
Segment at the bottom right
and [B] illuminate, [min] or
[max] flash.
–
SHOW mode active.
–
7-segment display shows the minimum or
maximum value InB.
Segments at the bottom right
and left and [C] flash.
–
INFO mode active.
–
7-segment display shows the input value
InC.
Segments at the bottom left
and right and [C] illuminate,
[min] or [max] flash.
–
SHOW mode active.
–
7-segment display shows the minimum or
maximum value InC.
Marked segments illuminate
and [Option] flashes.
–
EDIT mode active.
–
Special menu opens.
–
7-segment display shows the set option.
Marked segments illuminate
and [Lock] flashes.
–
EDIT mode active.
–
Special menu opens.
–
7-segment display shows the security code.
Tab. 4 Special Bar Graphs on the Display
5.2
Function
5.2.1
Functional Principle
The system consists of two sub-components. The control module provides a com-
pressed air preparation that is adapted to the supply pressure of the sensor mod-
ule, as well as the functionality for switching measuring and exhaust air. Up to
4 sensor modules contain the sensory functions. The sensor modules can be
operated both individually and in combination with the control module.
1 3/2-way valve (instrument air)
2 Pressure regulator
3 3/2-way valve (exhaust air)
4 Supply pressure
5 Sensor modules (pneumatically
linked)
6 Object (example)
7 Air gap
8 Measuring nozzles (1 per sensor
module)
9 Vent screw
10 Supply port for operating pressure
Fig. 3 Configuration with a control module and two sensor modules
The compressed air flows from the sensor modules to the measuring nozzles. If
the object is very close to a measuring nozzle, the air gap is very small and only a
small amount of air flows through. As the object gets further away, the air gap
becomes larger and more air flows through. The change in flow rate is detected by
the sensor modules, converted into a distance-correlated value and displayed
(speed measuring method with ejector).
5.2.2
Operating Statuses
Operating status
Function
RUN Mode
–
Basic status after the operating voltage is applied
–
Numerical and graphical display of distance-correlated values (bar
graph)
–
Display of measured values for supply pressure (in bar)
–
Display of the signal statuses of the binary signals OutA, OutB, OutC
INFO mode
–
Display of input variables in the display
–
Switch the display by pressing the A pushbutton and/or the B push-
button
SHOW mode
–
Display of current settings for the binary signals,
–
Display and reset of the min/max values for the distance-correlated
value and supply pressure
EDIT Mode
–
Setting or alteration of the parameters for the air gap sensor (switch-
ing outputs, display)
TEACH mode
–
Teaching-in of the switching points for the distance-correlated values
(transfer of the current value as the trigger level).
Tab. 5 Operating Statuses
5.2.3
Switching Outputs
5.2.3.1
Switching Signals
1 Sensing variable
2 Input signal
3 Binary signal
4 Switching signal at sensor module
plug
Fig. 4 Binary signals and switching signals SOPA-...-2P/2N-...
