Mitsubishi Electric MELSEC Q Series Handbook page 120

3
REPLACEMENT OF I/O MODULE
(4) Specifications comparison between A1SY18A and QY18A
Specifications
Number of output points
Isolation method
Rated switching voltage/
current
Minimum switching load
Maximum switching
voltage
Off  on
Response
time On  off
Mechanical
Life
Electrical
Maximum switching
frequency
Surge suppressor
Common terminal
arrangement
Operation indication
Fuse
Voltage
External
power
supply
Current
External connection
system
Applicable wire size
Applicable solderless
terminal
Current consumption
External dimensions
Weight
3
- 67
A1SY18A
8 points
(16 points occupied)
Photocoupler
24VDC 2A (resistance load)/point
240VAC 2A (COS=1)/point
8A/module
5VDC 1mA
264VAC 125VDC
10ms or less
12ms or less
20 million times or more
Rated switching voltage/current load
200,000 times or more
200VAC 1.5A, 240VAC 1A
(COS=0.7) 200,000 times or more
200VAC 0.75A, 240VAC 0.5A
(COS=0.35) 200,000 times or more
24VDC 1A, 100VDC 0.1A
(L/R=7ms) 200,000 times or more
3600 times/hr
None
All points independent common
On indication (LED)
None
24VDC±10%
Ripple voltage 4Vp-p or less
75mA
(typ. 24VDC, all points on)
20-point terminal block connector
(M3.57 screws)
2
0.75 to 1.25mm
R1.25-3.5, R2-3.5,
RAV1.25-3.5, RAV2-3.5
0.24A (typ. all points on)
130(H)34.5(W)93.6(D)mm
0.25kg
: Compatible,
QY18A
8 points
(16 points occupied)
Relay
24VDC 2A (resistance load)/point
240VAC 2A (COS=1)/point
8A/module
5VDC 1mA
264VAC 125VDC
10ms or less
12ms or less
20 million times or more
Rated switching voltage/current load
100,000 times or more
200VAC 1.5A, 240VAC 1A
(COS=0.7) 100,000 times or more
200VAC 0.4A, 240VAC 0.3A
(COS=0.7) 300,000 times or more
200VAC 1A, 240VAC 0.5A
(COS=0.35) 100,000 times or more
200VAC 0.3A, 240VAC 0.15A
(COS=0.35) 300,000 times or more
24VDC 1A, 100VDC 0.1A
(L/R=7ms )100,000 times or more
24VDC 0.3A, 100VDC 0.03A
(L/R=7ms) 300,000 times or more
3600 times/hr
None
All points independent common
On indication (LED)
None
-
-
18-point terminal block
(M36 screws)
2
Core: 0.3 to 0.75mm
(outside diameter: 2.8mm or less)
R1.25-3
(Sleeved solderless terminal cannot
be used.)
0.24A (typ. all points on)
98(H)27.4(W)90(D)mm
0.22kg
: Partially changed, : Incompatible
Compat-
Precautions for replacement
ibility

The isolation method differs, but
the performance is the
equivalent.






Replace the module more
frequently because the life cycle
is reduced by approximately half.

-


-

An external power supply is not
required.



Wiring change is required.


Wiring space is narrower.