Mitsubishi Electric M70V Series Connection Manual page 65

MITSUBISHI CNC
2 General Specifications
(a) Outline of digital signal input circuit
Both 24V common and 0V common connections are allowed in the digital signal input circuit.
Follow the wiring diagram below for each type.
Input circuit
24V common
External contact
Stabilized
power supply
24VDC(+)
0V
FG
Input conditions
The input signals must be used within the following condition ranges.
1
2
3
4
5
6
7
8
9
(Note)
Connection to 24V common input
(E)
(I)
40
CG31/CG33/CG35
(Machine side)
Input resistor
R
3.3 k
Input voltage
COM
A3,B3
Input voltage at external contact ON
Input current at external contact ON
Input voltage at external contact OFF
Input current at external contact OFF
Input resistance
Tolerable chattering time (T1)
Input signal holding time (T2)
input circuit operation delay time
(T3 and T4)
Machine side contact capacity
Input signal holding time: The guide is 40ms or more. The input signal will not be
recognized unless it is held for the ladder processing cycle time or longer.
T2
T1
+24V
GND
T3
(E) : External signal, (I):Internal signal
0V common
(Machine side)
External contact
Input voltage
Control
Stabilized
circuit
power supply
24VDC(+)
0V
FG
24V common
6V or less
20V or more, 25.2V or less
30V or more, 16mA or more
Connection to 0V common input
(E)
T1 T1
+24V
GND
(I)
T4
CG31/CG33/CG35
Input resistor
R
3.3k
Control
circuit
COM
A3,B3
0V common
18V or more, 25.2V or less
9mA or more
4V or less
2mA or less
Approx. 3.3kΩ
3ms
40ms or more (Note)
3 to 16ms
T2
T1
T3 T4