Table of Contents
Advertisement
Maximum Current and Power Supplied
4-3
Maximum Current and Power Supplied
Current Supplied
Name
CPU Rack
Expansion
I/O Rack
Slave Rack
Downloaded from
Elcodis.com
electronic components distributor
All manuals and user guides at all-guides.com
In addition, when PC Link Units are used, a maximum of ten Special I/O Units
and PC Link Units total can be mounted to one Expanded PC. When a High-den-
sity I/O Unit is mounted to a Remote I/O Slave Rack, the RM001-PV1 or RM201
Remote I/O Master Unit must be used.
The power supplies, including those built in the CPUs, are limited in the total cur-
rent they can supply to I/O units.
The table below shows the maximum currents supplied by each power supply.
There are three categories in the "Maximum current supplied":
1, 2, 3...
1. The 5-V internal logic current powers I/O Cards and communications cards.
Refer to the deductions table to determine what trade-offs must be made
when the total I/O and peripherals exceed the CPUs internal logic current
capacity.
2. The 26-V relay current powers relay output cards and ID Sensor Units.
3. Finally, the external 24-VDC power supply on the CPU powers external in-
put devices.
The total wattage of all three categories cannot exceed the wattage listed in the
last column, "Maximum power".
You should not exceed any of the individual current ratings for the voltage
supplied by any single unit, nor should you exceed the total maximum power out-
put.
Model number
(internal logic
C200H-CPU01-E
1.6 A
C200H-CPU03-E
C200H-CPU11-E
1.4 A
C200H-PS221
2.7 A
C200H-PS211
C200H-RT001-P
2.7 A
C200H-RT002-P
C200H-RT201
C200H-RT202
Note The figures shown in the "maximum current supplied" and "maximum power
supplied" columns are computed with the power consumed by the Backplanes,
CPU, Memory Cassettes, Peripheral Devices, I/O Power Supply Units, and
Slave Units already calculated.
Design the system so that the following two conditions are satisfied.
Condition 1
(1) (Total current consumption of all Units in the 5-V system) ≤ (the figure in the
5-V column)
(2) (Total current consumption of all Units in the 26-V system) ≤ (the figure in the
26-V column)
(3) (Total current consumption of all Units in the 24-V system) ≤ (the figure in the
24-V column)
Condition 2
(1) x 5 V + (2) x 26 V + (3) x 24 ≤ (maximum power supplied)
Max. current supplied
5 V
26 V
(relay current)
current)
0.6 A
0.6 A
0.6 A
Section
Maximum
power
24 V
(No-voltage
contact current)
0.8 A
23 W
---
18 W
0.8 A
22 W
0.8 A
28 W
---
23 W
0.8 A
28 W
---
23 W
0.8 A
28 W
---
23 W
4-3
35
Advertisement
Table of Contents
