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Technology > Various Modes of Control > Power Supply > Protection Function
Power Supply
The external AC power supplied to this machine passes through the filter PCB, and the
filtered AC power is converted to 24 VDC. The 24 VDC is supplied to the DC control PCB
from which it is supplied to the load-related parts (motors, solenoids, fans, and clutches) as
it is or converted to 5 VDC or 3.3 VDC y the DC-DC to e supplied to logic-related parts
(sensors).
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Protection Function
The power supply PCB incorporates a primary-side, secondary-side overcurrent, and
overvoltage protection circuits.
Each of load-related 24V lines has a fuse. If overcurrent or overvoltage occurs in a load
(motor, etc.) due to a trouble such as a short circuit, the fuse blows to actuate the protection
mechanism.
Each of logic-related 5V/3.3V lines also has a fuse to actuate the protection mechanism.
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Technology > Various Modes of Control > Power Supply > Protection Function
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