Mitsubishi Electric MELSEC-Q Series - Page 149

3 REPLACEMENT OF I/O MODULE
3 - 96
(6) Specifications comparison between A1SX48Y58 and QX48Y57
(a) Specifications comparison between A1SX48Y58 (input part) and QX48Y57(input part)
: Compatible, : Partially changed, : Incompatible
*1 Check the specifications of the sensor or switch to be connected to the QX48Y57.
Specifications A1SX48Y58 (input specifications) QX48Y57 (input specifications)
Compat-
ibility
Precautions for replacement
Number of input points 8 points 8 points 
Isolation method Photocoupler Photocoupler 
Input format Sink type
Sink type
(positive common)

Rated input voltage 24VDC 24VDC 
Rated input current Approx. 7mA Approx. 4mA
The rated input current is
reduced.
*1
Operating voltage range
19.2 to 26.4VDC
(ripple ratio within 5%)
20.4 to 28.8VDC
(ripple ratio within 5%)
The operating voltage range
differs.
Maximum number of
simultaneous input points
Simultaneously on (100%)
(26.4VDC)
Simultaneously on (100%) 
On voltage/on current 14VDC or more/3.5mA or more 19VDC or more/3mA or more
The on voltage/on current differ.
*1
Off voltage/off current 6.5VDC or less/1.7mA or less 11VDC or less/1.7mA or less
The off voltage differs.
*1
Input resistance Approx. 3.3k Approx. 5.6k
The input resistance is
increased.
*1
Response
time
Off  on
10ms or less
(24VDC)
1ms/5ms/10ms/20ms/70ms or less
(Configure
the setting in the PLC
parameter dialog box.
)
10ms is set by default.

Set the input response time of
parameter to the default value
(10ms).
On  off
10ms or less
(24VDC)
1ms/5ms/10ms/20ms/70ms or less
(Configure the setting in the PLC
parameter dialog box.)
10ms is set by default.

Common terminal
arrangement
8 points/common
(common terminal: TB9)
8 points/common
(common terminal: TB9)

Operation indication On indication (LED) On indication (LED) 
External connection
system
20-point terminal block
(M3.57 screws)
18-point terminal block
(M36 screws)

Wiring change is required.
Applicable wire size
0.75 to 1.25mm
2
Core: 0.3 to 0.75mm
2
(outside diameter: 2.8mm or less)

Applicable solderless
terminal
R1.25-3.5, R2-3.5
RAV1.25-3.5, RAV2-3.5
R1.25-3
(Sleeved solderless terminal cannot
be used.)

Number of occupied I/O
points
16 points
(I/O assignment: Output 16 points)
16 points
(I/O assignment: I/O mix 16 points)

Current consumption 0.06A (typ. all points on) 0.08A (typ. all points on)
Review the current capacity
since the current consumption is
increased.
External dimensions 130(H)34.5(W)93.6(D)mm 98(H)27.4(W)90(D)mm Wiring space is narrower.
Weight 0.20kg 0.20kg 