Outline Of Digital Signal Input Circuit - Mitsubishi Electric M800VW Series Manual

M800V/M80V Series PLC Development Manual
2 System Configuration of H/W

2.5 Outline of Digital Signal Input Circuit

2.5 Outline of Digital Signal Input Circuit
Both 24 V common and 0 V common connections are allowed in the digital signal input circuit.
Follow the wiring diagram below for each type.
 Input circuit
24V common
CG31/CG33
External contact
X200
5kΩ
Stabilized
power supply X23F
24VDC(+)
0V
DICOM
FG
 Input conditions
The input signals must be used within the following condition ranges.
1 Input voltage at external contact ON
2 Input current at external contact ON
3 Input voltage at external contact OFF
4 Input current at external contact OFF
5 Input resistance
6 Tolerable chattering time (T1)
7 Input signal holding time (T2)
8 input circuit operation delay time (T3 and T4)
9 Machine side contact capacity
(*1) Input signal holding time: The guide is 40 ms or more. The input signal is recognized only when its "ON" state is held lon-
ger than the ladder processing cycle time.
Connection to 24 V common input
T2
(E)
T1
+24V
GND
(I)
T3
(E): External signal
(I): Internal signal
IB-1501614-B
0V common
External contact
Stabilized
power supply
Control
circuit
24VDC(+)
0V
FG
24 V common
6 V or less
20.2 V or more, 25.2 V or less
Connection to 0 V common input
(E)
T1 T1
+24V
GND
(I)
T4 T3
22
CG31/CG33
X200
5kΩ
X23F
Control
circuit
DICOM
0 V common
18 V or more, 25.2 V or less
3 mA or more
3.8V or less
0.7 mA or less
5 kΩ
3 ms
40 ms or more(*1)
3 ms to 16 ms
30 V or more, 16 mA or more
T2
T1
T4