Mitsubishi FX3UC SERIES User Manual page 275

FX Series Programmable Controllers
3UC
User's Manual - Hardware Edition
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
FX -32MT-LT
3 UC
(Built-in master+
Built-in power supply)
Terminating
resistor
Power supply
0.5m
0.5m
0.5m
0.5m
1) Current consumption calculation
Total current consumption in the built-in power supply
60mA 60mA
station station
a) b)
Total current consumption in the power adapter
100mA 150mA
station station
e)
2) Voltage drop calculation
Voltage drop in the built-in power supply
(7.5m (24'7")
Maximum distance : From the main unit to the farthest station, station d)
3m (9'10")
Voltage drop in the power adapter
(7m (22'11")
Maximum distance : From the power adapter to the farthest station, station h)
0.5m (1'7")
3) Confirmation related to the minimum operating voltage (20.4V DC) of the module
Built-in power supply:24V - 2.3V
Power adapter
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.
24V DC
General-purpose
power supply
18m
Station a)
60mA
Station b)
60mA
Station c)
100mA
Station d)
100mA
100mA 100mA 320mA
station station
c) d)
150mA 600mA 1000mA
station station
f) g) h)
Constant : 55) Constant : 0.06
1m (3'3") 1m (3'3")
Constant : 11) Constant : 0.06
2m (6'6") 1m (3'3")
=
21.7V
=
: 24V - 1.08V 22.92V
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.6 Selection of the power supply for CC-Link/LT
- 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.
LINK/POWER connector
LINK connector
Power adapter
CL1PAD1
0.32A 0.35A
1A 5A
0.32A 1.1V
1m (3'3") 1m (3'3") 0.5m (1'7")
1A 1.08V
1m (3'3") 1m (3'3") 1m (3'3")
≥
20.4V
≥
20.4
24V DC
General-purpose
power supply
Power supply
2m 0.5m
Terminating
resistor
0.5m
Station e)
100mA
0.5m
Station f)
150mA
0.5m
Station g)
150mA
0.5m
Station h)
600mA
OK!!
OK!!
2.3V 3.6V
OK!!
7.5m (24'7")
OK!!
3.6V
0.5m (1'7") 7m (22'11")
1
2
3
4
5
6
7
8
9
10
269