When Special Extension Devices Are Also Added (Calculation Of Current Consumption) - Mitsubishi Electric MELSEC-F FX3G Series User Manual

FX Series Programmable Controllers
3G
User's Manual - Hardware Edition
6.6.2 When special extension devices are also added (calculation of current
consumption)
1
Select an input/output powered extension unit.
→ For the data on the number of input/output occupied points and current consumption of each type,
Power supply
classification
1 With built-in
power Input/output
powered
supply
extension unit
2
Enter the specifications for the products to be added.
Enter the data for the input/output extension blocks and special function blocks to be connected to
the input/output powered extension unit, and calculate the current.
→ For 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 input/
output powered
extension unit
C
Special
function
unit/block
2
Calculate the totals
*1. When connecting the FX
upstream unit to the FX
consumption and number of occupied I/O points for the input extension blocks (including FX
ES/UL and FX
*2. A maximum of 8 special function blocks are connectable, including the main unit and extension power
supply unit.
Number of
Classification
connected units
B1
-
Example of entry FX 2N -48ER-ES/UL
Number of
connected
units
FX
2N
FX 2N
FX
2N
B2
FX
2N
-
FX 2N
*1
FX
2N
FX
2N
FX 2N
FX
2N
FX
2N
FX
2N
FX
2N
*2
8
FX 2N
FX
2N
FX
2N
FX 2N
-1PSU-5V extension power supply unit to a system where the nearest
3U
-1PSU-5V is input/output powered extension unit, also enter the current
3U
-8ER) that are connected to the FX
2N
6.6 Expansion of FX2N Series I/O Powered Extension Unit
Number of input/
Type output points
[points]
1 -1
FX -
2N
48
Number of input/
Type output points
[points]
-
-
-
-
-
-
-
-
/FX -
3U
/FX -
3U
/FX -
3U
/FX -
3U
/FX 3U -
/FX -
3U
/FX -
3U
/FX 3U -
2 -1
-1PSU-5V.
3U
6 Examination of System Configuration
refer to Section 6.8.
Capacity of built-in power supply
24V DC service
5V DC power
power supply
supply [mA]
1 -2 1
690
refer to Section 6.8.
Calculation of current consumption
of built-in power supply
5V DC power 24V DC power
supply [mA] supply [mA]
-
-
-
-
-
-
-
-
2 -2 2
1
2
[mA] 3
-3
4
460
5
6
7
8
9
-3
-8ER-
2N
10
85