Omron SYSMAC mini SP10 Operation Manual page 27

Wiring
DC Input Examples
DC Input Devices
NPN Open-collector Outputs
NPN Current Outputs
PNP Current Outputs
input devices such as sensors, etc., make sure that the power consumption
of the devices does not exceed the ratings of the PC.
The following diagrams show the correct way to wire the terminals on the
CPU. When wiring, work carefully to ensure that all terminals are wired cor-
rectly. If an input device is connected to an output point, damage may result.
Check all I/O devices to ensure they meet the specifications (refer to Appen-
dix B Specifications).
The DC inputs in the following diagrams are NPN (positive common). Re-
verse the polarity if PNP (negative common) is used.
Use the CPU's 24 VDC power supply output to supply power to inputs. If the
maximum output current of 0.3 A is not sufficient, use a separate DC power
supply.
7 mA
Sensor
power
supply
Output
7 mA
0 V
Current
regulator Output
7 mA
0 V
Sensor
power
supply
Sensor
power
supply
Output
7 mA
0 V
Note When using the DC model (SP__-D_-D), do not input the signal through a
NC contact (which makes the PC operate when the externally input signal
24 VDC
Power source for
external supply
0 V
IN
DC input
COM
24 VDC
Power source for
external supply
0 V
IN
DC input
COM
Use the same power supply
for the input and sensor.
IN
DC input
COM
IN
DC input
COM
Section 2-3
SP__
SP__
SP__
SP__
19