62
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
1 Outline
1.12 Selection Calculation Example 1 for System Configuration
2) Restriction in 5V DC power supply capacity
Calculate the 5V DC power supply capacity for the main unit or extension power supply unit.
→
Refer to Subsection 1.12.1.
3) Restriction for the number of connectable units
a) Special adapter
The FX
3UC
-
MT/D and FX
3UC
-
MT/DSS cannot use expansion boards. Directly
connect the special adapter to the main unit.
There is no problem with this configuration since only 2 special communication
adapters are connected.
b) Special function unit/block
This configuration includes the following 5 special function units/blocks.
Because only up to 4 units can be connected to the main unit, it is necessary to add an
extension power supply unit.
-
FX
2NC
-4DA
-
FX
3UC
-4AD
-
FX
2N
-10PG
-
FX
3U
-20SSC-H
-
FX
0N
-3A
→
Refer to Subsection 1.12.1.
c) Other restrictions
In some models, only up to 4 units (or 5 units in certain conditions) can be connected to a single main
unit. When connecting 5 or more units, it is necessary to add an extension power supply unit. (Refer to
Subsection 1.10.1.)
This configuration includes the following equipment that fall under the restriction for the number of
connectable units.
-
FX
2NC
-16EYR-T
×
2
-
FX
0N
-3A
There is no problem with this configuration since it satisfies the restriction for the
number of connectable units (4 units).
a)Supplier side
FX
3UC
-64MT/D
480mA
b)Consumer side
FX
2NC
-32EX
FX
2NC
-16EYR-T
FX
2NC
-4DA
FX
2NC
-16EYR-T
60mA
50mA
30mA
50mA
100mA
0mA
a) It is necessary to add an extension power supply unit since the capacity on the
consumer side b) is 170mA larger than the capacity on the supplier side a).
120mA
100mA
FX
3UC
-4AD
FX
2NC
-CNV-IF
FX
2N
-10PG
FX
3U
-20SSC-H
50mA
110mA
170mA
220mA
270mA
300mA
"a)Supplier side" - "b)Consumer side" = 480mA - 650mA = -170mA
400mA
FX
2NC
-32EX
60mA
520mA
NG!!
FX
3U
-232ADP(-MB) 30mA
FX
3U
-485ADP(-MB) 20mA
620mA
30mA
FX
0N
-3A
650mA
5V DC power supply capacity and current consumption
OK!!
NG!!
OK!!
Содержание FX3UC Series
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