Input Rating And Input Circuit - Panasonic LP-S Series Maintenance Manual

3-3-5 Input rating and input circuit

The input rating and input circuit for the Input terminal and I/O connector are shown as follows:
„ Input rating
Item
Input form
Input ON voltage
Input OFF voltage
Rated input voltage
„ Input circuit
„ NPN sample
Input common
(IN COM.)
Each input
• The product can compatible with both NPN transistor output and PNP transistor output. However, mixing use of NPN/
PNP is impossible. Operate the product after selecting either NPN or PNP.
• Do not short-circuit input common (IN COM.) and output common (OUT COM.). It might cause the trouble with the laser
marker.
• Respective inputs are bidirectional photo-coupler inputs. The regulation for input ON is based on the ON status of photo-
coupler.
• IN COM. (X2) on the I/O terminal block and IN COM. (No.1) on the I/O connector are the common terminals connected
internally.
• Connect the power supply to IN COM. and OUT COM.
• Wiring LASER STOP 1/LASER STOP 2 terminal by non-voltage contact (dry contact) is recommended.
• DC 2-wire sensor cannot be connected to any input.
100
Terminal block, I/O connector input
Difference of voltages between input and input common: 19.6V or more
Difference of voltages between input and input common: 4V or less
4.7k *
Input
680
Input common
(IN COM.)
*: The resistance for X7, X8 encoder input terminals is 2.7 kΩ.
External power
(+24V DC)
NPN open
collector output
ME-LPS-SSM-8
Bidirectional photo-coupler
+24V DC±10%
„ PNP sample
Each input
Input common
(IN COM.)
External power
(+24V DC)
PNP open
collector output