Mitsubishi Electric MELSEC-Q Series - Page 129

3 REPLACEMENT OF I/O MODULE
3 - 76
(12)Specifications comparison between A1SY42P and QY42P
: Compatible, : Partially changed, : Incompatible
Specifications A1SY42P QY42P
Compat-
ibility
Precautions for replacement
Number of output points 64 points 64 points 
Isolation method Photocoupler Photocoupler 
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 0.1A/point, 2A/common 0.1A/point, 2A/common 
Maximum inrush current 0.7A 10ms or less 0.7A 10ms or less 
Leakage current at off 0.1mA or less 0.1mA or less 
Maximum voltage drop
at on
0.1VDC (typ.) 0.1A
0.2VDC (MAX.) 0.1A
0.1VDC (typ.) 0.1A
0.2VDC (MAX.) 0.1A

Response
time
Off  on 1ms or less 1ms or less 
On  off
1ms or less
(rated load, resistance load)
1ms or less
(rated load, resistance load)

Surge suppressor Zener diode Zener diode 
Common terminal
arrangement
32 points/common
(common terminal: 1A1, 1A2, 2A1,
2A2)
32 points/common
(common terminal: 1A01, 1A02,
2A01, 2A02)

Operation indication
On indication (LED)
32-point switching indication with the
switch
On indication (LED)
32-point switching indication with the
switch

Protection function
Available
(overheat protection function,
overload protection function)
• The overheat protection function is
activated in increments of 1 point.
• The overload protection function is
activated in increments of 1 point.
Available
(overheat protection function,
overload protection function)
• The overheat protection function is
activated in increments of 1 point.
• The overload protection function is
activated in increments of 1 point.

External
power
supply
Voltage
12/24VDC
(10.2 to 30VDC)
12-24VDC
(10.2 to 28.8VDC)
(ripple ratio within 5%)
Voltage exceeding 28.8VDC is
not applicable.
Current
14mA
(typ. 24VDC for each common)
20mA (24VDC)/common The current value is increased.
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 0.17A (typ. all points on) 0.15A (typ. all points on) 
External dimensions 130(H)34.5(W)93.6(D)mm 98(H)27.4(W)90(D)mm
Weight 0.17kg 0.17kg 