Omron Sysmac NX-PD1000 User Manual

Communications Coupler
Unit block
Additional NX Unit Power
Supply Unit block
Unit power supply
terminals
NX Unit connected to
the Communications
Coupler Unit
NX Unit connected to the Additional
NX Unit Power Supply Unit
Internal power
supply circuit
Unit power supply
terminals
End Cover Additional NX Unit Power Supply Unit
NX Unit power supply NX Unit power supply
Unit power
supply
Commu-
nications
Coupler
Unit
The total Unit power supply capacity for these two blocks is the power supply capacity that the
Slave Terminal requires.
Precautions for Correct Use
Select a Unit power supply with sufficient capacity by considering the inrush current when the
power is turned ON. Sometimes, the Unit power supply may not be turned ON caused by inrush
current when the power is turned ON.

Equation in a CPU Rack of Communication Control Unit
<Equation>
The equation for the Unit power supply capacity in the CPU Rack of Communication Control Unit is
as follows.
Unit power supply capacity in the CPU Rack = 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.
• Required Unit power supply capacity of each block in the Communication Control Unit = (A) + ((B)/(C))
• Unit power supply capacity of Additional NX Unit Power Supply Unit block = ((D) + (E))/(F)
(A): Unit power consumption of a Communication Control Unit
(B): T
otal power consumption from the NX Unit power supply that is required by the NX Units that are connected to
the Communication Control Unit
(C): NX Unit power supply ef
ficiency of the Communication Control Unit
(D): NX Unit power consumption of the additional NX Unit Power Supply Unit
(E): Total power consumption from the NX Unit power supply that is required by the NX Units that are connected to
the Additional NX Unit Power Supply Unit
(F): NX Unit power supply efficiency of the Additional NX Unit Power Supply Unit
<Block>
4 Installation and Wiring
4-31
NX-series System Units User's Manual (W523)
4-6 Wiring the Additional Power Supply Units
4
4-6-1 Wiring the Additional NX Unit Power Supply Unit

Omron Sysmac NX-PD1000 Specifications

General

Model	NX-PD1000
Category	Controller
Series	Sysmac NX
Power Supply	24 VDC
Operating Temperature	0 to 55 °C
Protection Rating	IP20
Short-circuit protection	Yes
Overload protection	Yes
Type	Power Supply Unit
Humidity	10 to 90% RH (non-condensing)
Shock Resistance	150 m/s2, 3 times each in X, Y, and Z directions
Weight	Approx. 130 g