Mitsubishi Electric MELSEC-Q Series - Page 136

3 REPLACEMENT OF I/O MODULE
3 - 83
(19)Specifications comparison between A1SY81 and QY81P
: Compatible, : Partially changed, : Incompatible
Specifications A1SY81 QY81P
Compat-
ibility
Precautions for replacement
Number of output points 32 points 32 points 
Isolation method Photocoupler Photocoupler 
Rated load voltage 12/24VDC 12-24VDC (+20/-15%) 
Operating load voltage
range
10.2 to 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 0.4A 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
1.0VDC (typ.) 0.1A
2.5VDC (MAX.) 0.1A
0.1VDC (typ.) 0.1A
0.2VDC (MAX.) 0.1A

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 
Common terminal
arrangement
32 points/common
(common terminal: 17, 18, 36)
32 points/common
(common terminal: 17, 18, 36)

Operation indication On indication (LED) On indication (LED) 
Fuse rating
(breaking capacity)
3.2A
Cannot be changed.
(breaking capacity: 50A)
--
These specifications are changed
to the protection function.
Fuse blown indication
Available
(LED turns on when a fuse is blown
and a signal is output to the CPU
module.)
Protection function -
Available
(overheat protection function,
overload protection function)
• The overheat protection function is
activated in increments of 2 points.
• 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
8mA
(TYP.24VDC for each common)
40mA (24VDC) The current value is increased.
External connection
system
37-pin D-sub connector
(accessory)
37-pin D-sub connector
(sold separately)

Existing external wiring can be
used.
Note that the connecting direction
of the connector is inverted.
Applicable wire size
0.3mm
2
0.3mm
2
(A6CON1E)

Current consumption 0.50A (typ. all points on) 0.095A (typ. all points on) 
External dimensions 130(H)34.5(W)93.6(D)mm 98(H)27.4(W)90(D)mm
Weight 0.23kg 0.15kg