Page 33
Installation
optoNCDT 1420
5.4.3
Supply Voltage
Nominal value: 24 V DC (11 ... 30 V, P < 2 W).
Switch on the power supply unit once wiring is completed.
Connect the inputs “7“ and “12“ at the sensor with a 24 V voltage supply.
ILD1420
7
12
11 ...
30 VDC
Sensor
Pin
PCF1420-x/Y
Color
Supply
Use the supply voltage for measurement
instruments only and not for drive units or
similar sources of pulse interference at the
same time.
MICRO-EPSILON recommends using an
optional available power supply unit PS2020
for the sensor.
Fig. 17 Connection of supply voltage
7
red
+U
B
12
blue
Ground
5.4.4
Laser on
The measuring laser on the sensor is activated via an HTL switch input. This is advantageous if the sensor
has to be switched off for maintenance or similar. Switching can be done with a transistor (for example open
collector in an optocoupler) or a relay contact.
i
If pin 8 is not connected with Pin 12, the laser is off.
PCF1420-x/Y
+U
8
blue
12
Type 1
ILD1420
H
Type 2
black
GND
There is no external resistor for current limit-
ing required. Connect Pin 8 with Pin 12 for
permanent „Laser on“.
Reaction Time for Laser-On: Correct
measuring data are sent by the sensor
approximately 1 ms after the laser was
switched on.
Fig. 18 Electrical wiring for laser off
Summary of Contents for ILD 1420-10
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