Expansion Of Extension Power Supply Unit (Fx 3U -1Psu-5V) - Mitsubishi FX3G SERIES User Manual

FX Series Programmable Controllers
3G
User's Manual - Hardware Edition
6.7 Expansion of Extension Power Supply Unit (FX
If the selected devices in Section 6.5 are not connectable due to the built-in 5V DC power shortage, add an
extension power supply unit.
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
power supply
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
Enter the
products
connected to
the extension
power supply
unit
4
Calculate the totals
70
Output current [A]
1.0
0.8
0.3
0.2
0
Number of
Classification connected
units
D1
Extension
-
power supply
unit
Number of
Classification connected
units
FX
B2
FX
Input/output
-
FX
extension
*2
FX
block
FX
FX
FX
C
FX
*3
Special
8
FX
function
unit/block FX
FX
FX
6.7 Expansion of Extension Power Supply Unit (FX3U-1PSU-5V)
Derating curve
5V DC
24V DC
40 55
Ambient temperature [°C]
Capacity of built-in power supply
Type
5V DC power
supply [mA]
3
FX -1PSU-5V
3U
Capacity of built-in power supply
Type
5V DC power
supply [mA]
- -
2N
- -
2N
- -
2N
- -
2N
/FX -
2N 3U
/FX -
2N 3U
/FX -
2N 3U
/FX -
2N 3U
/FX -
2N 3U
/FX -
2N 3U
/FX -
2N 3U
2N /FX 3U -
4 -1
6 Examination of System Configuration
-1PSU-5V)
3U
Power supply for
internal 24V DC
[mA]
-1 3 -2
refer to Section 6.8.
Power supply for
internal 24V DC
[mA]
4 -2
Connectable I/O
occupied points
[points]
3 -3
32
Number of
I/O occupied
*1
points
{points]
-
-
-
-
-
-
-
-
4 -3