Mitsubishi Electric MELSEC-Q Series - Page 132

3 REPLACEMENT OF I/O MODULE
3 - 79
(15)Specifications comparison between A1SY60E and QY68A
: Compatible, : Partially changed, : Incompatible
*1 Connect a fuse to every external terminal to prevent the external device and module at load short from burnout.
Also, configure an external circuit if fuse blown indication is required.
Specifications A1SY60E QY68A
Compat-
ibility
Precautions for replacement
Number of output points 16 points
8 points
(16 points occupied)
When 9 or more points are used,
use two QY68A modules.
Isolation method Photocoupler Photocoupler 
Rated load voltage 5/12/24VDC 5-24VDC 
Operating load voltage
range
4.5 to 26.4VDC
(peak voltage 26.4VDC)
4.5 to 28.8VDC 
Maximum load current
2A/point
(condition: =L/R2.5ms),
4A/common
2A/point
8A/module

Maximum inrush current 8A 10ms or less 8A 10ms or less 
Leakage current at off 0.1mA or less 0.1mA or less 
Maximum voltage drop at
on
0.2VDC (MAX.) 1A,
0.4VDC (MAX.) 2A
0.3VDC (MAX.) 2A 
Response
time
Off  on 3ms or less 3ms or less 
On  off 10ms or less (resistance load) 10ms or less (resistance load) 
Surge suppressor Zener diode Zener diode 
Common terminal
arrangement
8 points/common
(common terminal: TB9, TB19)
All points independent common
Wiring of the terminal block
needs to be changed because all
terminals become independent.
Operation indication On indication (LED) On indication (LED) 
Fuse rating
(breaking capacity)
7A
(1 fuse/common)
Cannot be changed.
(breaking capacity: 300A)
None
(Connecting a fuse to external wiring
is recommended.)

Fuses are not built in.
*1
Fuse blown indication
Available
(LED turns on when a fuse is blown
and a signal is output to the CPU
module.)
External
power
supply
Voltage 12/24VDC (10.2 to 26.4VDC) - 
An external power supply is not
required.
Current
10mA
(typ. 24VDC for each common)
- 
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 1.25mm
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 0.20A (typ. all points on) 0.11A (typ. all points on)
When two QY68A modules are
used, the current consumption is
increased. Review the current
capacity.
External dimensions 130(H)34.5(W)93.6(D)mm 98(H)27.4(W)90(D)mm Wiring space is narrower.
Weight 0.20kg 0.14kg