Mitsubishi Electric MELSEC-Q Series - Page 153

3 REPLACEMENT OF I/O MODULE
3 - 100
(8) Specifications comparison between A1SJ-56DR and QX40/QY10
(a) Specifications comparison between A1SJ-56DR (input part) and QX40
: Compatible, : Partially changed, : Incompatible
*1 Check the specifications of the sensor or switches to be connected to the QX40.
Specifications
A1SJ-56DR
(input specifications)
QX40
Compat-
ibility
Precautions for replacement
Number of input points 32 points 16 points
When 17 or more points are
used, use two QX40 modules.
Isolation method Photocoupler Photocoupler 
Input format Sink input
Sink input
(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
60% (10 points/common)
Simultaneously on
Simultaneously on (100%) 
On voltage/on current 14VDC or more/3.5mA or more 19VDC or more/3mA or more
The on voltage and 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
16 points/common
(common terminal: TB17, TB34)
16 points/common
(common terminal: TB17)

Operation indication On indication (LED) On indication (LED) 
External connection
system
34-point terminal block connector
2 pieces (M3.56 screws)
18-point terminal block
(M36 screws)

Wiring change is required.
Applicable wire size
0.75 to 2mm
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
128 points
(slot 0: Output 64 points,
slots 1 to 4: Empty 16 points)
16 points
(I/O assignment: Input 16 points)
-
Current consumption 0.22A (typ. all points on) 0.05A (typ. all points on) -
The module configuration differs.
Recalculate the current
consumption.
External dimensions 130(H)174.5(W)65.6(D)mm 98(H)27.4(W)90(D)mm Wiring space is narrower.
Weight 0.80kg 0.16kg