Omron Sysmac NX701 User Manual page 123

DC Power Supplies
 Precautions When Using A Non-isolated Power Supply Unit NX-PD7001
When you connect a computer or other peripheral device to a Controller that has a non-isolated
DC Power Supply Unit NX-PD7001, either ground the 0-V side of the external power supply or
do not ground it at all.
If the peripheral devices are grounded incorrectly, the external power supply may be short-cir-
cuited. Never ground the 24-V side of the power supply, as shown in the following figure.
Peripheral device
(e.g., computer)
 Wiring for NX-PD7001
DC power supply
24 V
*1. The RUN output is ON when the CPU Unit is in RUN mode and OFF when the CPU Unit
is in PROGRAM mode or a Controller error in the major fault level occurs.
 DC Power Supply
• Supply 24 VDC.
• Use the Power Supply Unit of the voltage shown in the table below.
Model
NX-PD7001
NX-series CPU Unit Hardware User's Manual (W535)
CAUTION
Non-isolated DC power supply
(internal power supply circuit)
Peripheral
device cable
24 V
M4 self-raising screw terminals
RUN output
Power supply voltage
24 VDC (20.4 to 28.8 VDC)
4 Installation and Wiring
0 V
External
power supply
*1
Power
supply
PD7001
PWR
+
DC24V
INPUT
RUN
OUTPUT
AC240V
DC24V
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