Manual
21
4.5 I/O Signal Interface Circuit
(1) Sequence Input Part
Item Specification
Input voltage
24 VDC ± 20%
Input current 7 mA/circuit
Operating voltage
ON voltage --- Min. 16 V (4.5 mA)
OFF voltage --- Max. 6 V (1.4 mA)
Insulation method Photo-coupler
NPN specification
PNP specification
P-Driver
COM-A
COM-B
1, 2
14
3.3 KΩ
560 Ω
P-Driver
COM-A
COM-B
1
,
2
14
3.3 K
Ω
560 Ω
External power supply
24 VDC
External power supply
24 VDC
Pin No.
Pin No.
Internal circuit
Internal circuit
Each input
Each input
Each input
Each input