Expansion Of Extension Power Supply Unit (Fx 3U -1Psu-5V); Fx 3G; User's Manual - Hardware Edition - Mitsubishi Electric MELSEC-F FX3G Series User Manual

FX Series Programmable Controllers
3G

User's Manual - Hardware Edition

6.7 Expansion of Extension Power Supply Unit (FX
Select the extension power supply unit for adding special function blocks when extension is prohibited in the
AC power supply type main unit due to restrictions in connection described in Section 6.5.
1
Enter the current supply specification of the extension power supply unit.
The output current of the extension power supply unit is proportional to the ambient temperature as
shown by the derating curve below. Enter the output current value, based on this derating curve.
Also verify that the number of occupied input/output points from input/output extension block(s)
connected to the extension power supply unit is less than 32.
Power supply
classification
3
With built-in
Extension
power supply
power supply
unit
2
Enter the specifications for the products to be added.
Enter the data on the input/output extension blocks and special function units/blocks to be con-
nected to the input/output powered extension unit, and calculate the current.
→ For the data on the number of input/output occupied points and current consumption of each type,
Power supply
Classification
classification
Input/output
extension
block
Enter the
products
connected to
the extension
C
power supply
unit
Special
function
unit/block
4
Calculate the totals
Derating curve
Output current [mA]
1000
800
300
200
0
Ambient temperature [°C]
Number of
Classification connected
units
D1
-
Number of
connected
units
FX
2N
B2
FX
2N
-
FX
2N
*2
FX
2N
FX
2N
FX
2N
FX
2N
FX
2N
*3
8
FX 2N
FX
2N
FX
2N
FX 2N
6.7 Expansion of Extension Power Supply Unit (FX3U-1PSU-5V)
5V DC
24V DC
40 55
Capacity of built-in power supply
Type
5V DC power
supply [mA]
3 -1
FX -1PSU-5V
3U
Capacity of built-in power supply
Type
5V DC power
supply [mA]
- -
- -
- -
- -
/FX -
3U
/FX -
3U
/FX -
3U
/FX -
3U
/FX 3U -
/FX -
3U
/FX -
3U
/FX 3U -
4 -1
6 Examination of System Configuration
-1PSU-5V)
3U
Connectable I/O
Power supply for
occupied points
internal 24V DC
[points]
[mA]
3 -2
refer to Section 6.8.
Number of
I/O occupied
Power supply for
points
internal 24V DC
{points]
[mA]
4 -2 4
1
2
3
4
5
3 -3
32
6
7
*1
8
-
-
9
-
-
-
-
-
-
10
-3
87