MICRO-EPSILON optoNCDT 1750, Operating Instructions Manual

Page: 74 / 140

Page 74
Setting Sensor Parameters
optoNCDT 1750
7.6.3 Analog Output
7.6.3.1 Output Scaling
- Max. output range: 4 mA ... 20 mA or
0 V ... 5 V / 0 V ... 10 V
- Output amplification
D
I
OUT
: 16 mA or
D
U
OUT
: 5 V / 10 V; corresponds to 100 % MR
- Error value: 3.0 mA (±10 μA) or
5.2 V or. 10.2 V
Teaching scales the analog output. This allows
you to optimize the resolution for the analog
output. The behavior of the analog and switch-
ing outputs will change. In every case, 2 points
are taught which characterize the start and the
end of the new measuring range. The teaching
is performed via the built-in
Select
button, the
multi-function input, ASCII command
or
via web interface.
i
In conjunction with a user-specific output
characteristic, you can use the switching
outputs, see Chap. 5.4.8, as movable limit
switches.
The target position for Teach 1 and Teach 2 must
be different. The teaching process requires a valid
measurement signal. In case of
- no object, object cannot be evaluated,
- too close to the sensor - outside the SMR, or
- too far from the sensor - outside the EMR
the teaching process is aborted.
Fig. 38 Standard characteristic (black), reversed,
user-specific characteristic (red)
SMR EMR
100 %
0 %
Error value 1
163768 164424 262078 98232 97576 262077
Analog
output
Measuring range
Digital value
LED
State
Switch
output
Switch
output
Standard characteristic
Measuring object
within range
SMR EMR
100 %
0 %
Error value
Analog
output
262078
150000
262077 Digital value
User defined
characteristic
Teach 2 Teach 1
100000
Error
LED State
Measuring object
Measuring object within range Error
Error Error
sensor off RS422 on output off analog on
opto
NCDT
1) With current output 3.0 mA.