Mitsubishi Electric MELSEC-Q Series - Page 124

3 REPLACEMENT OF I/O MODULE
3 - 71
(7) Specifications comparison between A1SY40 and QY40P
: Compatible, : Partially changed, : Incompatible
Specifications A1SY40 QY40P
Compat-
ibility
Precautions for replacement
Number of output points 16 points 16 points 
Isolation method Photocoupler Photocoupler 
Rated load voltage 12/24VDC 12/24VDC 
Operating load voltage
range
10.2-30VDC
(peak voltage 30VDC)
10.2-28.8VDC
Voltage exceeding 28.8VDC is
not applicable.
Maximum load current 0.1A/point, 0.8A/common 0.1A/point,1.6A/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)

Fuse None None -
Common terminal
arrangement
8 points/common
(common terminal: TB10, TB20)
16 points/common
(common terminal: TB18)
As the common is changed from
2 commons to 1 common, wiring
with a different voltage for each
common is not possible.
Operation indication On indication (LED) On indication (LED) 
Fuse rating
(breaking capacity)
1.6A
(1 fuse/common)
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 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
8mA
(typ. 24VDC for one common)
MAX. 10mA (24VDC)
(all points on)

External connection
system
20-point terminal block connector
(M3.57 screws)
18-point terminal block
(M36 screws)

Wiring change is required.
Applicable wire size
0.75 to 1.5mm
2
Core: 0.3 to 0.75mm
2
(outside diameter: 2.8mm or less)

Applicable solderless
terminal
R1.25-3.5, R2-3.5,
RAV1.25-3.5, RAV2-3.5
R1.25-3
(Sleeved solderless terminal cannot
be used.)

Current consumption 0.27A (typ. all points on) 0.065A (typ. all points on) 
External dimensions 130(H)34.5(W)93.6(D)mm 98(H)27.4(W)90(D)mm Wiring space is narrower.
Weight 0.19kg 0.16kg