Input Circuit Of Displacement Sensor - Panasonic LP-M Series Maintenance Manual

3-6-3 Input circuit of displacement sensor

„ Input rating
Item
Input form
Input ON voltage
Input OFF voltage
Rated input voltage
„ Input circuit of displacement sensor trigger
„ NPN sample
No. 9: IN COM.2
No. 3: Trig
„ Displacement sensor error signal input circuit
• Use the displacement sensor which error signal is NPN open collector output type.
• At error output from displacement sensor, see that High voltage is input in the displacement sensor error signal input.
112
Difference of voltages between input and input common: 19.6V or more
Difference of voltages between input and input common: 4V or less
2.0 k
680
External power
(+24V DC)
NPN open
collector output
Laser marker
Internal voltage 24V
Resistance 4.7 kΩ
ME-LPM-SSM-10
Displacement sensor trigger input
Bidirectional photo-coupler
+24V DC±10%
No. 3: Trig (Displacement sensor trigger input)
No. 9: IN COM.2
(Input common for displacement sensor trigger input)
„ PNP sample
No. 3: Trig
No. 9: IN COM.2
Displacement sensor
NPN open
collector output
External power
(+24V DC)
PNP open
collector output