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Operation
optoNCDT 1700
6. Operation
6.1 Getting Ready for Operation
Install and assemble the optoNCDT1700 in accordance with the instructions set out, see Chap. 5. and con-
nect with the indicator or monitoring unit and the power supply, having full regard to the connection instruc-
tions set out, see Chap. 6.3.
The laser diode in the sensor can only be activated if the input „Laser on/off“ (Pin 9 or the red-blue wire in the
sensor cable) is connected to GND.
Once the operating voltage has been switched on the sensor runs through an initialization sequence. This
is indicated by the momentary activation of all the LEDs and the two switch outputs. If initialization has been
finished, the sensor transmits the info string once in ASCII format via the serial interface independent of the
selected interface. The initialization including the info string transmission takes up to 10 seconds. Within this
period, the sensor neither executes nor replies commands.
To be able to produce reproducible measurements the sensor typically requires a start-up time of 20 minutes.
Once this has elapsed the sensor will be in measurement mode and, in accordance with the factory settings,
see Chap. A 2, only the “state“ LED will be illuminated.
If the “state“ LED is not on, this means that
- either there is no operating voltage or
- the laser has been switched off.
Operating Voltage
- Nominal value: 24 VDC (11 ... 30 V, max. 150 mA).
- Use the power supply unit for measurement instruments only, and not for drive units or similar sources of
pulse interference at the same time.
Switch on the power supply unit, if wiring is done.
IMPORTANT!
The laser diode in the
sensor will only be
activated
if the input „Laser
on/off“ is connected to
GND.
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