Number Of Special Extension Modules And Blocks And 5Vdc Power Supply Capacity - Mitsubishi A-Melsec A1FXCPU User Manual

2. PERFORMANCE

2.2.3 Number of special extension modules and blocks and 5VDC power supply capacity

5VDC
Total capacity
300mA or 690mA
Up to two FX
If more blocks are connected, use the extension module(FX
Connection example A1FXCPU, FX
When special modules and special blocks are used, the number of modules and
blocks connected and 5VDC current consumption must be taken into consideration.
(1) Number of modules and blocks connected
Up to eight special modules/special blocks may be connected to the A1FXCPU.
(2) Power supply range.
Special blocks are supplied with 5VDC in the following range.
5VDC supplied
Special
B
A1FXCPU
B
B:Extension block Special B:Special block
The A1FXCPU or extension module supplies 5VDC power to the special blocks
in the extension module connected next. (The special module does not include a
power supply.) As 5VDC power is supplied through the extension cable, external
wiring is not necessary.
(3) 5VDC capacity calculation
The 5VDC power supply of each module is as follows. Refer to the following table
for the current consumption of each special block.
<5VDC power supply capacity>
Model Power Supply Capacity
A1FXCPU
FX extension
2N
module
Special block
5VDC
-
Current consumption
Refer to Table 2.3
-3A's may be connected to the A1FXCPU or FX
0N
0N
300mA - (30 2)mA - 70mA
5VDC supplied
Special
FX
2N
B
extension module
Special U:Special module
The 5VDC current to the CPU and
300mA
the equipment connected to the
programming connector has already
690mA
been subtracted.
If the result is less than 0, the capacity is short.
>0
Use an extension module midway.
-32E, or up to three FX
2N
-32E,FX
2N 2N
-3A 2, FX-IHC 1, FX-10GM 1
- 0mA(power supply built-in:unnecessary) =170mA>0 (connectable)
2 - 7
MELSEC-A
Special Special
B B U
FX -CNV-IF
2N
Remarks
-3A's to the FX
0N
-48E) midway.
-48E.
2N