Mitsubishi Electric MELSEC-Q Series - Page 114

3 REPLACEMENT OF I/O MODULE
3 - 61
(46)Specifications comparison between A1SX82-S1 (negative common) and QX82-S1
: Compatible, : Partially changed, : Incompatible
*1 Check the specifications of the sensor or switches to be connected to the QX82-S1.
*2 The following shows the derating chart.
Specifications A1SX82-S1 QX82-S1
Compat-
ibility
Precautions for replacement
Number of input points 64 points 64 points 
Isolation method Photocoupler Photocoupler 
Rated input voltage 24VDC 24VDC 
Rated input current Approx. 5mA 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 (50%)
(16 points/common) (24VDC)
Refer to the derating chart.
*2

On voltage/on current 18.5VDC or more/3.5mA or more 19VDC or more/3mA or more
The on voltage/on current differ.
*1
Off voltage/off current 3VDC or less/0.45mA or less 9.5VDC or less/1.5mA or less
The off voltage/off current differ.
*1
Input resistance Approx. 4.7k Approx. 5.6k
The input resistance is
increased.
*1
Response
time
Off  on 0.3ms or less (24VDC)
0.1ms/0.2ms/0.4ms/0.6ms/1ms or
less
(Configure the setting in the PLC
parameter dialog box.
)
0.2ms is set by default.

The response time differs.
Set the time according to the
control.
On  off 0.3ms or less (24VDC)
0.1ms/0.2ms/0.4ms/0.6ms/1ms or
less
(Configure the setting in the PLC
parameter dialog box.
)
0.2ms is set by default.

Common terminal
arrangement
32 points/common
(common terminal: 1B1, 1B2, 2B1,
2B2)
32 points/common
(common terminal: 1B01, 1B02,
2B01, 2B02)

Operation indication
On indication (LED)
32-point switching indication with the
switch
On indication (LED)
32-point switching indication with the
switch

External connection
system
40-pin connector 2 pieces
(accessory)
40-pin connector 2 pieces
(sold separately)

Existing external wiring can be
used.
Applicable wire size
0.3mm
2
0.3mm
2
(A6CON1, A6CON4)

Current consumption 0.16A (typ. all points on) 0.09A (typ. all points on) 
External dimensions 130(H)34.5(W)93.6(D)mm 98(H)27.4(W)90(D)mm
Weight 0.28kg 0.18kg
(QX82-S1)
100
90
80
70
60
50
40
0102030405055
Ambient temperature
24VDC
30
20
26.4VDC
28.8VDC
ON
ratio/
common