Mitsubishi Electric MELSEC-A0J2H Series Handbook page 46

3
I/O MODULES REPLACEMENT
A0J2H models to be discontinued
Product name
I/O module
3
- 5
Model name Model name
*1
QX41Y41P
A0J2-E28DT
QX40
+
QY50
*1
A0J2-E56DT
QX41Y41P
Alternative Q series models
Remarks (restrictions)
1) Change in external wiring: Required (Terminal block
connector)
2) Change in the number of modules: Not required
3) Change in a program
Change in the number of occupied I/O points: Not required
(Number of actual I/O points: Input 16 points, output 12 points
 Input 32 points, output 32 points)
4) Change in specifications
Change in rated input voltage: Required (12VDC not
*2
applicable)
Change in rated input current: Required (Approx. 7mA 
Approx. 4mA)
Change in ON voltage/ON current: Required
Change in OFF voltage/OFF current: Required
Change in input resistance: Required
Change in rated load voltage: Not required
Change in rated load current: Required (Output 0.5A  0.1A)
5) Change in functions: Not required
1) Change in external wiring: Required
2) Change in the number of modules: Required
(4 modules necessary: QX40 × 2 modules, QY50 × 2 modules)
3) Change in a program
Change in the number of occupied I/O points: Not required
4) Change in specifications
Change in rated input voltage: Required (12VDC not
*2
applicable)
Change in rated input current: Required (Approx. 7mA 
Approx. 4mA)
Change in ON voltage/ON current: Required
Change in OFF voltage/OFF current: Required
Change in input resistance: Required
Change in rated output voltage: Not required
Change in rated output current: Not required
5) Change in functions: Not required
1) Change in external wiring: Required (Terminal block
connector)
2) Change in the number of modules: Not required
3) Change in a program
Change in the number of occupied I/O points: Not required
(Number of actual I/O points: Input 32 points, output 24 points
 Input 32 points, output 32 points)
4) Change in specifications
Change in rated input voltage: Required (12VDC not
*2
applicable)
Change in rated input current: Required (Approx. 7mA 
Approx. 4mA)
Change in ON voltage/ON current: Required
Change in OFF voltage/OFF current: Required
Change in input resistance: Required
Change in rated load voltage: Not required
Change in rated load current: Required (Output 0.5A  0.1A)
5) Change in functions: Not required

