Mitsubishi Electric MELSEC Q Series Handbook page 98

3
REPLACEMENT OF I/O MODULE
(30)Specifications comparison between A1SX80 (24VDC, negative common) and QX80
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 QX80.
3
- 45
A1SX80
16 points
Photocoupler
12/24VDC
Approx. 3mA/Approx. 7mA
10.2 to 26.4VDC
(ripple ratio within 5%)
Simultaneously on (100%)
(26.4VDC)
8VDC or more/2mA or more
4VDC or less/1mA or less
Approx. 3.3k
10ms or less
(24VDC)
10ms or less
(24VDC)
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
: Compatible,
QX80
16 points
Photocoupler
24VDC
Approx. 4mA
20.4 to 28.8VDC
(ripple ratio within 5%)
Simultaneously on (100%)
19VDC or more/3mA or more
11VDC or less/1.7mA or less
Approx. 5.6k
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: TB18)
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.)
0.05A (typ. all points on)
98(H)27.4(W)90(D)mm
0.16kg
: 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
parameter to the default value
(10ms).





Wiring change is required.


Wiring space is narrower.
*1
*1