Mitsubishi Electric MELSEC Q Series Handbook page 150

3
REPLACEMENT OF I/O MODULE
(b) Specifications comparison between A1SX48Y58 (output part) and QX48Y57(output part)
Specifications
Number of output points
Isolation method
Output format
Rated load voltage
Operating load voltage
range
Maximum load current
Maximum inrush current
Leakage current at off
Maximum voltage drop at
on
Off  on
Response
time On  off
Surge suppressor
Fuse rating
(breaking capacity)
Fuse blown indication
Common terminal
arrangement
Voltage
External
power
supply
Current
3
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A1SX48Y58
(output specifications)
8 points
Photocoupler
Sink type
12/24VDC
10.2 to 30VDC
(peak voltage 30VDC)
0.5A/point, 2A/common
4A 10ms or less
0.1mA or less
0.9VDC (typ.) 0.5A,
1.5VDC (MAX.) 0.5A
2ms or less
2ms or less
(resistance load)
Zener diode
3.2A
(1 fuse/common)
Cannot be changed.
(breaking capacity: 50A)
Available
(LED turns on when a fuse is blown
and a signal is output to the CPU
module.)
8 points/common
(common terminal: TB19)
12/24VDC
(10.2 to 30VDC)
60mA
(typ. 24VDC for each common)
: Compatible,
QX48Y57 (output specifications)
7 points
Photocoupler
Sink type
12-24VDC
10.2 to 28.8VDC
0.5A/point, 2A/common
4A 10ms or less
0.1mA or less
0.2VDC (typ.) 0.5A,
0.3VDC (MAX.) 0.5A
1ms or less
1ms or less
(rated load, resistance load)
Zener diode
4A
(1 fuse/common)
Cannot be changed.
(breaking capacity: 50A)
Available
(LED turns on when a fuse is blown
and a signal is output to the CPU
module.)
7 points/common
(common terminal: TB18)
12-24VDC (+20/-15%)
(ripple ratio within 5%)
10mA (24VDC)
: Partially changed, : Incompatible
Compat-
Precautions for replacement
ibility
When 8 or more points are used,
use two QX48Y57 modules.



Voltage exceeding 28.8VDC is
not applicable.








8 points/common is changed to 7
points/common.
Voltage exceeding 28.8VDC is
not applicable.
