Mitsubishi Electric MELSEC Q Series Handbook page 75

3
REPLACEMENT OF I/O MODULE
(7) Specifications comparison between A1SX30 (12VDC) and QX70
Specifications
Number of input points
Isolation method
Rated input voltage
Rated input current
Operating voltage range
Maximum number of
simultaneous input points
On voltage/on current
Off voltage/off current
Input resistance
Off  on
Response
time
On  off
Common terminal
arrangement
Operation indication
External connection
system
Applicable wire size
Applicable solderless
terminal
Current consumption
External dimensions
Weight
*1 Check the specifications of the sensor or switches to be connected to the QX70.
*2 The following shows the derating chart.
A1SX30
16 points
Photocoupler
12/24VDC,
12/24VAC (50/60Hz)
8.5mA (24VDC/AC),
4mA (12VDC/AC)
10.2 to 26.4VDC
(ripple ratio within 5%),
10.2 to 26.4VAC
(50/60Hz±5%)
*2
Refer to the derating chart.
7VDC/AC or more/2mA or more
2.7VDC/AC or less/0.7mA or less
Approx. 2.7k
20ms or less (12/24VDC),
25ms or less
(12/24VAC 60Hz)
20ms or less (12/24VDC),
20ms or less
(12/24VAC 60Hz)
16 points/common
(common terminal: TB9, TB18)
On indication (LED)
20-point terminal block connector
(M3.57 screws)
2
0.75 to 1.25mm
R1.25-3.5, R2-3.5,
RAV1.25-3.5, RAV2-3.5
0.05A (typ. all points on)
130(H)×34.5(W)×93.6(D)mm
0.20kg
(A1SX30)
26.4VAC
: Compatible,
QX70
16 points
Photocoupler
5/12VDC
5VDC Approx. 1.2mA
12VDC Approx. 3.3mA
4.5 to 6VDC
(ripple ratio within 5%)
10.2 to 14.4VDC
(ripple ratio within 5%)
Simultaneously on (100%)
3.5VDC or more/1mA or more
1VDC or less/0.1mA or less
Approx. 3.3k
1ms/5ms/10ms/20ms/70ms or less
(Configure the setting in the PLC
parameter dialog box.)
10ms is set by default.
1ms/5ms/10ms/20ms/70ms or less
(Configure the setting in the PLC
parameter dialog box.)
10ms is set by default.
16 points/common
(common terminal: TB17)
On indication (LED)
18-point terminal block
(M36 screws)
2
Core: 0.3 to 0.75mm
(outside diameter: 2.8mm or less)
R1.25-3
(Sleeved solderless terminal cannot
be used.)
0.055A (typ. all points on)
98(H)×27.4(W)×90(D)mm
0.14kg
: Partially changed, : Incompatible
Compat-
Precautions for replacement
ibility



The rated input current is
*1
reduced.


The on voltage/on current differ.
The off voltage/off current differ.
The input resistance is
*1
increased.

Set the input response time of
the parameter to 20ms.





Wiring change is required.


Wiring space is narrower.
3
*1
*1
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