Mitsubishi FX3UC Series, User Manual

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267
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.6 Selection of the power supply for CC-Link/LT
1
O
utline
2
Exter
nal
D
im
en
sions
3
Ge
ne
ric
Speci
ficat
ions
4
Pow
er Suppl
y
Specif
icati
ons
5
Input Spec
ific
ations
6
O
utput
Specif
icat
ions
7
Exam
pl
es
of
W
iri
ng
fo
r
Va
rious U
ses
8
Te
rm
inal B
lock
9
CC
-L
in
k/L
T
Ma
ste
r F
X
3UC
(LT
only)
10
D
ispl
ay m
odule
FX
3UC
(L
T only)
9.6.4 System configuration example 1
In this system configuration example using only dedicated flat cables, both the current consumption and the
voltage drop are small.
System configuration example
1) Current consumption calculation
Total current consumption
2) Voltage drop calculation
3) Confirmation related to the minimum operating voltage (20.4V DC) of the module
24V - 2.612V = 21.388V
≥
20.4V
Station a)
100mA
Station d)
60mA
Terminating
resistor
5m
2m
4m 4m
5m 0.5m
- The current consumption of each station shall include the
current consumption of the connected I/O equipment.
- It is supposed that the general-purpose power supply
satisfies the required condition.
Terminating
resistor
5m 10m
Power supply
FX
3
UC
-32MT-LT
(Built-in
Built-in power supply)
Station c)
80mA
General-purpose
power supply
24V DC
2m
Station b)
60mA
station station station station
a) b) c) d)
60mA 80mA 60mA 100mA 300mA 0.30A 0.35A
OK!!
(29m (95’1") Constant : 55) Constant : 0.06 0.3A 1.1V 2.612V 3.6V
5m (16’4") 4m (13’1") 29m (95’1")
Maximum distance : From the main unit to the farthest station, station d)
10m (32’9") 5m (16’4") 5m (16’4")
OK!!
From 1), 2) and 3) above, the system can be configured using only the built-in
power supply with regard to both the current and voltage restrictions.