Omron Sysmac NX-PD1000 User Manual page 83

Power Supply Used
24 VDC power is supplied to the Unit power supply terminals. The power supply voltage range for the
Unit power supplies is as follows.
Model
NX-PD1000
Use an SELV power supply that meets the following conditions for the Unit power supply.
• Has overcurrent protection.
• Has double or reinforced insulation between the input and output.
• Has an output voltage that falls within the power supply voltage range for the Unit power supply.
We recommend the following power supply.
Recommended power supply in a CPU Rack: Model S8VK series (Omron)
Recommended power supply in a Slave Terminal: Model S8VK series or Model S8JX series
(Omron)
Precautions for Correct Use
• Use the same Unit power supply to supply power to the entire CPU Rack. If you supply
power from different power supplies, differences in electrical potential may cause unex-
pected currents in the NX Unit power supply, which may result in failure or malfunction.
• Use the same Unit power supply to supply power to the entire Slave Terminal. If you supply
power from different power supplies, differences in electrical potential may cause unex-
pected currents in the NX Unit power supply, which may result in failure or malfunction.
Required Power Supply Capacity
The equation for the Unit power supply capacity in the CPU Rack and in the Slave Terminal is as
follows.
 Equation in a CPU Rack
<Equation>
The equation for the Unit power supply capacity in the CPU Rack of NX1P2 CPU Unit is as follows.
Unit power supply capacity in the CPU Rack = The total power capacity from Unit power supply
on each block
The equation for the Unit power supply capacity on each block in the CPU Rack is as follows.
NX-series System Units User's Manual (W523)
Power supply voltage range
20.4 to 28.8 VDC
4 Installation and Wiring
4
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