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MELSEC-Q
2 INPUT MODULE SPECIFICATIONS
2.13 QX50 DC (Positive Common/Negative Common Shared Type)/ AC Input Module
Type
Specifications
DC (positive/negative shared common type)/ AC input module
QX50
Appearance
DC Input AC Input
Number of input points 16 points
Isolation method Photocoupler
Rated input voltage
48VDC
(+20/-15%, ripple ratio within 5%)
48VAC (+10/-15%) 50/60Hz
(±3Hz) (ripple ratio within 5%)
Rated input current Approx. 4mA
Input derating Refer to the derating chart.
ON voltage/ON current 28V or higher/2.5mA or higher
OFF voltage/OFF current 10V or lower/1.0mA or lower
Input impedance Approx. 11.2kΩ
Response
time 1
OFF to ON 5ms or less 15ms or less
ON to OFF 20ms or less 20ms or less
Dielectric withstand voltage 1060VAC rms/3 cycles (altitude 2000m)
Insulation resistance 10MΩ or more by insulation resistance tester
Noise immunity
By noise simulator of 500Vp-p noise voltage, 1 s noise width
and 25 to 60Hz noise frequency
First transient noise IEC61000-4-4: 1kV
Protection degree IP2X
Common terminal arrangement 16 points/common (common terminal: TB17)
Number of occupied I/O points 16 points (I/O assignment is set as a 16-point input module.)
Operation indicator ON indication (LED)
External connections
18-point terminal block (M3 6 screws)
Applicable wire size 0.3 to 0.75mm
2
core (2.8mm OD max.)
Applicable crimping terminal R1.25-3 (Sleeved crimping terminals cannot be used.)
Internal current consumption
(5VDC)
50mA (TYP. all points ON)
Weight 0.13kg
Derating chart Terminal block No. Signal name
TB1 X00
TB2 X01
TB3 X02
TB4 X03
TB5 X04
TB6 X05
TB7 X06
External connection TB8 X07
TB9 X08
TB10 X09
TB11 X0A
TB12 X0B
TB13 X0C
TB14 X0D
TB15 X0E
TB16 X0F
TB17 COM
TB18 Vacant
1: Response time cannot be changed. Parameter setting of the CPU module will be invalid.
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
F
7
E
6
D
5
C
4
B
3
A
2
9
1
8
0
QX50
D
C
B
A
9
8
7
6
5
4
3
2
1
0
E
F
100
90
80
70
60
50
40
0102030405055
ON
ratio
Ambient temperature
52.8VAC
(%)
( C)
48VDC/AC
57.6VDC
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