Input Rating And Input Circuit - Panasonic VL-W1-N Series Setup And Maintenance Manual

4-2-3 Input rating and input circuit

This section shows the input rating and the input circuit for the I/O terminal block input and the I/O connector input. Note
that the input rating and circuit of the interlock connector are different from those shown here. Refer to "4-4-2 Input and
output circuit of interlock" (P.106).
„ Input rating
Item
Input form
Input ON voltage
Input OFF voltage
Rated input voltage
„ Input circuit
„ NPN sample
IN COM.
Each input
• This product supports both the NPN transistor output and the PNP transistor output. However, the wiring from I/O
terminal block and the I/O connector respectively cannot be used as NPN/PNP mixed. Operate the product after
selecting either NPN or PNP.
• Do not short-circuit 24V (X1, Y3) and 0V (Y1, X3). Also, do not short-circuit IN COM. (X2) and OUT COM. (Y2, X12, X15,
X18). Starting the laser welding machine with these terminals short-circuited will cause the laser welding machine to
malfunction.
• 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 terminals by non-voltage contact (dry contact) is recommended.
• DC 2-wire sensor cannot be connected to any input.
I/O terminal block input, I/O connector input
Bidirectional photo coupler insulation input
Difference of voltages between input and input common: 19.6V or more
Difference of voltages between input and input common: No more than 4V or open
4.7K *
680
External power
supply
(+24V DC)
NPN open
collector output
ME-VLW1N-SM-1
+24V DC+/-10%
INPUT
IN COM.
„ PNP sample
Each input
IN COM.
External power
supply
(+24V DC)
PNP open
collector output
97