Application-specific extension types
14
DB 112 B
Leuze electronic
10
Application-specific extension types
The amplifier types described below are used for the adaptation to specific applications.
They are used instead of the standard amplifier types.
10.1
VDB 112 B/6.2N - Fixed switching threshold
This amplifier corresponds to the VDB 112B/6P with regard to the technical and electrical
data. The software is adapted to a special customer application.
No calibration is needed for the material to be detected as a fixed switching threshold for
double sheet detection is implemented in the amplifier.
The detection range covers papers between 40g/m² and 450g/m².
Notice!
The VDB 112 B/6.2N has no TEACH-IN button. In order to enter alignment mode if required,
the 2-pin pin strip directly on the PCB may be bridged for >5s. Afterwards, alignment can be
carried out as described under "Alignment mode" in chapter 7.
The device LEDs indicate the following error states:
In the case of VDB112B/6.2N, the operating voltage must be interrupted briefly in order to
reset the error message.
Designation
Model
Part No.
Amplifier (negative logic) - fixed switching threshold
VDB 112 B/6.2N
501 07003
LED
LED
LED
Meaning
Cause
Remedy
red
flashing
(6Hz)
red
flashing
(6Hz)
Amplifier detects
insufficient input sig-
nal when device
switched on
Sheet between the
sensors or sensors
not connected
Remove sheet
red
flashing
(6Hz)
red
flashing
(6Hz)
Amplifier detects
excessively high
noise level when
device switched on
Extreme back-
ground noise
Dampen back-
ground noises, e.g.
using foam
rapid
yellow
flashing
rapid
red
flashing
Current at output too
high
Short circuit
Switch off voltage,
check wiring
red
flashing
(3Hz)
red
Fatal memory error
Defect
Have repaired by
Leuze electronic
