User`s manual
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MELSEC-Q
4 COMBINED I/O MODULE
4.3 QX48Y57 I/O Module
• When using the main module, use the constructions listed in Section 1.2 (14).
• This module uses sequential I/O numbers for input and output.
For I/O numbers of combined I/O modules, refer to Section 1.2 (18).
(1) DC Input Specification (Positive Common Type)
Type
Specifications
QX48Y57 I/O Module (Input Specification) Appearance
Number of input points 8 points
Insulation method Photocoupler
Rated input voltage 24VDC (+20/-15%, ripple ratio within 5%)
Rated input current Approx. 4mA
Input derating None
ON voltage/ON current 19V or higher/3mA or higher
OFF voltage/OFF current 11V or lower/1.7mA or lower
Input resistance Approx. 5.6k
OFF ON
1ms/5ms/10ms/20ms/70ms or less (CPU parameter setting)
1
Initial setting is 10ms
Response
time
ON
OFF
1ms/5ms/10ms/20ms/70ms or less (CPU parameter setting)
1
Initial setting is 10ms
Dielectric maximum voltage 560VAC rms/3 cycles (altitude 2000m)
Insulation resistance 10M or more by insulation resistance tester
By noise simulator of 500Vp-p noise voltage,
1
s noise width and 25 to 60Hz noise frequency
Noise immunity
First transient noise IEC61000-4-4: 1kV
Protection of degree IP2X
Common terminal
arrangement
8 points/common (common terminal: TB9)
Number of I/O occupied
points
16 points (For I/O allocation on I/O mixed module, set 16 points.)
Operation indicator ON indication (LED)
External connections 18-point terminal block (M3 6 screw)
Applicable wire size
Core cable: 0.3 to 0.75mm
2
(Outside diameter: 2.8mm or smaller)
Applicable connector terminal R1.25-3 (Terminals with sleeve cannot be used)
5VDC internal current
consumption
80mA (TYP, all points ON)
Weight 0.20kg
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
QX48Y57
24VDC4mA
12/24VDC
0.5A
L
L
L
L
L
L
L
FUSE
01234567
8 9 ABCDEF
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM
+-
COM
1: For the setting method, refer to the Section 1.3.1.