Outline Of Digital Signal Output Circuit - Mitsubishi Electric MELDAS C6 Maintenance Manual

6.6 Outline of Digital Signal Output Circuit

The digital signal output circuit uses a sink type (DX1 0) or source type (DX1 1).
Use within the specification ranges shown below.
Output circuit
24VDC(+)
Output conditions
Insulation method
Rated load voltage
Max. output current
Output delay time
When using an inductive load such as a relay, always connect a diode (voltage
resistance 100V or more, 100mA or more) in parallel to the load.
When using a capacity load such as a lamp, always connect a protective resistor (R=150 Ω )
serially to the load to suppress rush currents. (Make sure that the current is less than the above
tolerable current including the instantaneous current.)
CAUTION
When using an inductive load such as relays, always connect a diode in parallel to the
load as a noise countermeasure.
When using a capacitive load such as a lamp, always connect a protective resistor in
series to the load to suppress rush currents.
6. CONNECTION OF REMOTE I/O UNIT
6.6 Outline of Digital Signal Output Circuit
(Machine side) DO-L/DO-R
RA
R
PL
DO-L/DO-R
(Machine side)
RA
R
PL
Non-insulation
24VDC
<CAUTION
I - 61
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Control
circuit
Sink type (DX1 0)
24VDC(+)
Control
circuit
Source (DX1 1)
60mA
40µs
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