Mitsubishi Electric MELSEC-Q Series - Page 134

3 REPLACEMENT OF I/O MODULE
3 - 81
(17)Specifications comparison between A1SY71 and QY71
: Compatible, : Partially changed, : Incompatible
Specifications A1SY71 QY71
Compat-
ibility
Precautions for replacement
Number of output points 32 points 32 points 
Isolation method Photocoupler Photocoupler 
Rated load voltage 5/12VDC 5/12VDC 
Operating load voltage
range
4.5 to 15VDC 4.5 to 15VDC 
Maximum load current
16mA/point
256mA/common
16mA/point
512mA/common

Maximum inrush current 40mA 10ms or less 40mA 10ms or less 
Output voltage at off
V
OH
: 3.5VDC
(V
cc
= 5VDC, I
OH
= 0.4mA)
V
OH
: 3.5VDC
(V
cc
= 5VDC, I
OH
= 0.4mA)

Maximum voltage drop at
on
V
OL
: 0.3VDC V
OL
: 0.3VDC

Response
time
Off  on 1ms or less 0.5ms or less 
On  off
1ms or less
(resistance load)
0.5ms or less
(resistance load)

Surge suppressor None None -
Common terminal
arrangement
32 points/common
(common terminal: A1, A2)
32 points/common
(common terminal: A01, A02)

Operation indication On indication (LED) On indication (LED) 
Fuse rating
(breaking capacity)
1.6A
Cannot be changed.
(breaking capacity: 50A)
1.6A
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.)

External
power
supply
Voltage
5/12VDC
(4.5 to 15VDC)
5/12VDC
(4.5 to 15VDC)
(ripple ratio within 5%)

Current
150mA
(typ. 12VDC for each
common)
Max.170mA
(12VDC, all points on)
The current value is increased.
External connection
system
40-pin connector (accessory) 40-pin connector (sold separately) 
Existing external wiring can be
used.
Applicable wire size
0.3mm
2
0.3mm
2
(A6CON1, A6CON4)

Current consumption 0.40A (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 0.19kg 0.14kg