Mitsubishi Electric MELSEC Q Series Handbook page 143

3
REPLACEMENT OF I/O MODULE
(3) Specifications comparison between A1SH42-S1 and QH42P
Specifications
Number of input points
Isolation method
Input format
Rated input voltage
Operating voltage range
Rated input current
Maximum number of
simultaneous input
points
On voltage/on current
Off voltage/off current
Input resistance
Off  on
Response
time
On  off
Common terminal
arrangement
Number of output points
Isolation method
Output format
Rated load voltage
Operating load voltage
range
Maximum load current
Maximum inrush current
Leakage current at of
Maximum voltage drop
at on
Off  on
Response
time On  off
Surge suppressor
Fuse rating
(breaking capacity)
Fuse blown indication
A1SH42-S1
32 points
Photocoupler
Sink type
24VDC
19.2 to 26.4VDC
(ripple ratio within 5%)
Approx. 5mA
60% (20 points/common)
Simultaneously on (24VDC)
15VDC or more/3mA or more
3VDC or less/0.5mA or less
Approx. 5k
0.3ms or less
0.3ms or less
32 points/common
(common terminal: 1B1, 1B2)
32 points
Photocoupler
Sink type
12/24VDC
10.2 to 30VDC
(peak voltage 30VDC)
0.1A/point, 1.6A/common
0.4A 10ms or less
0.1mA or less
1.0VDC (typ.) 0.1A
2.5VDC (MAX.) 0.1A
2ms or less
2ms or less
(resistance load)
Zener diode
3.2A
(1 fuse/common)
Cannot be changed.
(breaking capacity: 50A)
Available
(LED turns on when a fuse is blown
and a signal is output to the CPU
module.)
: Compatible,
QH42P
32 points
Photocoupler
Sink type
(positive common)
24VDC
20.4 to 28.8VDC
(ripple ratio within 5%)
Approx. 4mA
*2
Refer to the derating chart.
19VDC or more/3mA or more
11VDC or less/1.7mA or less
Approx. 5.6k
1ms/5ms/10ms/20ms/70ms or less
(Configure the setting in the PLC
parameter dialog box.)
10ms is set by default.
1ms/5ms/10ms/20ms/70ms or less
(Configure the setting in the PLC
parameter dialog box.)
10ms is set by default.
32 points/common
(common terminal: 1B01, 1B02)
32 points
Photocoupler
Sink type
12-24VDC
10.2 to 28.8VDC
(ripple ratio within 5%)
0.1A/point, 2A/common
0.7A 10ms or less
0.1mA or less
0.1VDC (typ.) 0.1A
0.2VDC (MAX.) 0.1A
1ms or less
1ms or less
(rated load, resistance load)
Zener diode
-
: Partially changed, : Incompatible
Compat-
Precautions for replacement
ibility




The operating voltage range
differs.
The rated input current is
*1
reduced.

*1
The on voltage differs.
The off voltage/off current differ.
The input resistance is
*1
increased.
The response time differs.
Set the time according to the
control.





Voltage exceeding 28.8VDC is
not applicable.







These specifications are
- changed to the protection
function.
3
*1
- 90