Mitsubishi Electric MELSEC-Q Series - Page 150

3 REPLACEMENT OF I/O MODULE
3 - 97
(b) Specifications comparison between A1SX48Y58 (output part) and QX48Y57(output part)
: Compatible, : Partially changed, : Incompatible
Specifications
A1SX48Y58
(output specifications)
QX48Y57 (output specifications)
Compat-
ibility
Precautions for replacement
Number of output points 8 points 7 points
When 8 or more points are used,
use two QX48Y57 modules.
Isolation method Photocoupler Photocoupler 
Output format Sink type Sink type 
Rated load voltage 12/24VDC 12-24VDC 
Operating load voltage
range
10.2 to 30VDC
(peak voltage 30VDC)
10.2 to 28.8VDC
Voltage exceeding 28.8VDC is
not applicable.
Maximum load current 0.5A/point, 2A/common 0.5A/point, 2A/common 
Maximum inrush current 4A 10ms or less 4A 10ms or less 
Leakage current at off 0.1mA or less 0.1mA or less 
Maximum voltage drop at
on
0.9VDC (typ.) 0.5A,
1.5VDC (MAX.) 0.5A
0.2VDC (typ.) 0.5A,
0.3VDC (MAX.) 0.5A

Response
time
Off  on 2ms or less 1ms or less 
On  off
2ms or less
(resistance load)
1ms or less
(rated load, resistance load)

Surge suppressor Zener diode Zener diode 
Fuse rating
(breaking capacity)
3.2A
(1 fuse/common)
Cannot be changed.
(breaking capacity: 50A)
4A
(1 fuse/common)
Cannot be changed.
(breaking capacity: 50A)

Fuse blown indication
Available
(LED turns on when a fuse is blown
and a signal is output to the CPU
module.)
Available
(LED turns on when a fuse is blown
and a signal is output to the CPU
module.)
Common terminal
arrangement
8 points/common
(common terminal: TB19)
7 points/common
(common terminal: TB18)
8 points/common is changed to 7
points/common.
External
power
supply
Voltage
12/24VDC
(10.2 to 30VDC)
12-24VDC (+20/-15%)
(ripple ratio within 5%)
Voltage exceeding 28.8VDC is
not applicable.
Current
60mA
(typ. 24VDC for each common)
10mA (24VDC) 