269
FX3UC 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
Outline
2
External
Dimensions
3
Generic
Specifications
4
Power Supply
Specifications
5
Input
Specifications
6
Output
Specifications
7
Examples of
Wiring for
Various Uses
8
Terminal Block
9
CC-Link/LT
Master FX
3UC
(LT only)
10
Display module
FX
3UC
(LT only)
2. Countermeasures (addition of power adapter (CL1PAD1))
When the current consumption exceeds 0.35A, add the power supply adapter or dedicated power supply, and
construct the system so that the total current consumption of stations connected to the built-in power supply is
0.35A or less.
For the dedicated power supply and power supply adapter, refer to the manual of power supply adapter.
System configuration example when one power adapter is used
1) Current consumption calculation
Total current consumption in the built-in power supply
Total current consumption in the power adapter
2) Voltage drop calculation
Voltage drop in the built-in power supply
Voltage drop in the power adapter
3) Confirmation related to the minimum operating voltage (20.4V DC) of the module
Built-in power supply:24V - 2.3V
= 21.7V ≥ 20.4V
Power adapter : 24V - 1.08V
= 22.92V ≥ 20.4
1m1m1m1m
0.5m
0.5m
0.5m
0.5m
18m
0.5m
Power adapter
CL1PAD1
24V DC
2m
0.5m
Power supply
LINK/POWER connector
LINK connector
- The current consumption of each station shall include the current
consumption of the connected I/O equipment.
- It is assumed that the general-purpose power supply satisfies the
required condition.
Station a)
60mA
Station b)
60mA
Station c)
100mA
Station d)
100mA
Terminating
resistor
3m1m1m1m1m
0.5m
0.5m
0.5m
0.5m
Power supply
General-purpose
power supply
24V DC
FX
3
UC
-32MT-LT
(Built-in master+
Built-in power supply)
Station e)
100mA
Station f)
150mA
Station g)
150mA
Station h)
600mA
Terminating
resistor
General-purpose
power supply
station station station station
a) b) c) d)
60mA 60mA 100mA 100mA 320mA 0.32A 0.35A
OK!!
station station station station
e) f) g) h)
100mA 150mA 150mA 600mA 1000mA 1A 5A
OK!!
(7.5m (24’7") Constant : 55) Constant : 0.06 0.32A 1.1V 2.3V 3.6V
3m (9’10") 0.5m (1’7") 7.5m (24’7")
Maximum distance : From the main unit to the farthest station, station d)
1m (3’3") 1m (3’3") 1m (3’3") 1m (3’3")
OK!!
(7m (22’11") Constant : 11) Constant : 0.06 1A 1.08V 3.6V
0.5m (1’7") 0.5m (1’7") 7m (22’11")
Maximum distance : From the power adapter to the farthest station, station h)
2m (6’6") 1m (3’3") 1m (3’3") 1m (3’3") 1m (3’3")
OK!!
From 1), 2) and 3) above, the system cannot be configured using only built-in
power supply regard to both the current restrictions.
Add a power adapter or dedicated power supply.
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