Outline Of Digital Signal Output Circuit - Mitsubishi Electric CNC 700 Series Connection Manual

7. Connections of Operation Panel I/O Unit

7.9.4 Outline of Digital Signal Output Circuit

The digital signal output circuit uses a sink type (DX67 ) or source type (DX77 ).
Use within the specification ranges shown below.
Output circuit
(Machine side)
CG32/CG34
24VDC
+24V
0V
0V(RG)
DOx
CR
x
R
DOx
PL
x
DOCOM
0V(RG)
Sink type (DX67
Output conditions
Insulation method
Rated load voltage
Max. output current
Output delay time
(Note 1) 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.
(Note 2) When using a capacitive load such as a lamp, always connect a protective resistor (R=150Ω) serially to
the load to suppress rush currents. (Make sure that the current is less than the above tolerable current
including the momentary current.)
CAUTION
When using an inductive load such as a relay, always connect a diode in parallel to the load.
When using a capacitive load such as a ramp, always connect a protective resistor serially to
the load to suppress rush currents.
5VDC
24V 5V
Control
circuit
)
Insulation
24VDC
60mA/point
40µs
7.9 Connecting with Machine Operation Panel
(Machine side)
CG32/CG34
24VDC
+24V
0V
0V(RG)
DOCOM
DOxx
RA
R
DOxx
PL
Source type (DX77
91
5VDC
24V 5V
Control
circuit
)