14 Description of Units and Circuit Boards
14.7Universal I/O Circuit Board (JANCD-YIO21-E)
14-39
182582-1CD
182582-1CD
MH900, DX200 Controller
When connecting an inductive load to the output circuit,
connect a flyback (snubber) diode in parallel to the inductive
load to suppress the surge voltage. Not using the flyback
(snubber) diode may damage the output circuit.
When connecting the load with a large inrush current such
as the lamp, connect the current limiting resistor in series to
the load, so that the output current does not exceed its
maximum value. Exceeding the maximum output current
value may damage the output circuit.
Refer to section 14.13 “Universal I/O Signal Assignment”
from page14-44 to 14-70 about the maximum current of the
transistor and the relay output circuits.
+24VU
(JANCD-YIO21-E)
024VU
Inductive load
Universal I/O circuit board
Flyback Diode
Current limiting
resistor
Lamp
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