Yaskawa YASNAC PC NC Connecting Manual - Manual (Page 36)

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YASNAC PCNC Connecting Manual Chapter 2: Power Supply
2.1 Connection between Devices
This section describes connections between devices, connector numbers and connector type. For
power supply connection use a commercially available standard power supply or Power Supply
Model UPS000004.
2.1.1 Power Supply specifications for PCNC Unit and I/O units.
Power supply connection to the PCNC unit differs depending on whether using a
commercially available standard power supply for both PCNC and I/O units or use a
recommended power supply unit only for PCNC and use another power supply for I/O units.
(1) Selection of Power Supply
(a) Using a Standard Power Supply
Excluding +24V power supply for I/O input and output,90W is required for the total
PCNC system. Select a suitable power supply with consideration for temperature
derating characteristics.
• Power supply for I/O input and output
Select a suitable power supply by referring to the calculation example shown in
Section 10.3.3 “Power Supply for I/O Signal”.
•Power supply for PCNC Unit
In order to provide 90W power capacity or greater when the internal panel
temperature is 55
o
C, a +24V output power supply with capacity of 150W and
greater is required: (Recommended UPS000004 is rated for 150 Watts.)
Select a power supply with the following specifications:
Power capacity of 150W or greater.
Power supply with the derating characteristics of 60% or greater when the internal
panel temperature is 55
o
C. (150W x .06 = 90W)
•Recommended Power Supply:
UPS000004
Operating Conditions:
At 50
o
C - 100% ( Out put rated Current 6.5 Amps)
At 55
o
C - 80 % ( Derated Output Current )
For more details contact the power supply manufacturer.