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CJ1G-CPU43H

P1-P3P4-P6P7-P9P10-P10
B-108
CJ1 SYSTEM POWER AND EXPANSION
Power and Expansion Selection
This section provides tools to calculate the CJ1 system current consumption total needed to select
the power supply. When the number of modules or power requirements exceeds the capability of the
power supplies available, I/O expansion racks solve the problem. If the number of modules per rack
exceeds 10 or the current consumption is greater than the capacity of the power supply units, use the
CPU and expansion rack configuration.
A CJ1 system consists of a power supply, a CPU, and up to 10 basic I/O, special I/O and
CPU bus units, and an end cover. See page B-109.
What is the basic configuration?
The expansion I/O rack contains a power supply, an I/O interface module and the remaining
I/O modules. Each expansion rack requires a power supply, the I/O interface module and up
to 10 more modules.
Note: Order one CJ1W-IC101 I/O control module for the CPU rack and one CJ1W-II101 I/O
interface module for each I/O expansion rack. Connect the modules with a cable of
the appropriate length. Second and third I/O expansion racks connect between I/O
interface modules. See page B-117 for details.
What goes on expansion I/O racks?
All the current consumption ratings for the CPU, basic I/O, special I/O and CPU bus units
are collected in the tables on pages B-110 to B-111.
Where are ratings to calculate overall current consumption?
Compare the current consumption total of basic I/O, special I/O, and CPU bus units to
determine which power supply to use.
Note: If more than 10 modules are required or the current consumption exceeds the output
capacity of the power supplies, go to page B-109 for configuration of I/O expansion racks.
The same power supply units can be used for both CPU and I/O expansion racks.
Depending on the CPU chosen, the system can be expanded with up to three additional racks of
basic I/O, special I/O and CPU bus units.
Which power supply is right?
How many expansion I/O racks can be used?
Output rating
Output capacity
Power supply model
See page
5 A, 5 VDC
25 W max.
CJ1W-PD025
B-110
5 A, 5 VDC with 2 A RUN output
25 W max.
CJ1W-PA205R
B-110
2.8 A, 5 VDC
14 W max.
CJ1W-PA202
B-110
Maximum I/O modules
per CPU
Maximum I/O expansion
racks per CPU
CPU models
40
3
CJ1G-CPU44H
CJ1G-CPU45H
CJ1H-CPU65H
CJ1H-CPU66H
20
1
CJ1M-CPU13
CJ1M-CPU23
30
2
CJ1G-CPU42H
CJ1G-CPU43H
10
0
CJ1M-CPU12
CJ1M-CPU22
10
0
CJ1M-CPU11
CJ1M-CPU21
Input Voltage 100 to 240 VAC 24 VDC
System Power and Expansion
B-109
Programmable Controller
CJ1
System Configuration
J Basic Configuration
A CJ1 Series basic configuration consists of a CPU, Power Supply U nit, Basic I/O Modules, Special I/O Modules, CPU
Bus M odules, and an End Cover. Add up the current consumption of all the modules and the CPU according to the
formula on the following page and then select the Power Supply Unit right for the application.
Basic Configuration
Power
Supply
Unit
Memory Card
CPU
Configuration Modules
(Basic I/O Modules,
Special I/O Modules,
CPU Bus Modules)
End Cover
J CPU and Expansion Racks
If the number of modules per rack exceeds 10 or the current consumption is greater than the capacity of the Power Supply
Units, use the CPU and Expansion Rack configuration. This divides the load from the modules across two Power Supply
Units. To ensure communication and automatic channel assignment in programming, order an I/O Control Module for the
CPU Rack and an I/O Interface Module on each Expansion Rack.
CPU Rack
Expansion Rack
(Up to 3 Expansion
Racks Allowed)
Power
Supply
Unit
Memory Card
CPU
I/O Control Module
Configuration Modules
(Basic I/O Modules,
Special I/O Modules,
CPU Bus Modules)
End Cover
Power
Supply
Unit
I/O Connecting Cable
I/O Interface Module
Configuration Modules
(Basic I/O Modules,
Special I/O Modules,
CPU Bus Modules)
End Cover
System Power and Expansion
B-110
Programmable Controller
CJ1
Current Consumption
Calculate All Aspects of Current Consumption
J Calculating Maximum Current Consumption
A. Calculate Maximum Current Supply (See the table below.)
• Current required at 5 VDC by all Modules in column (A) ≤ Maximum current consumption shown in table
• Current required at 24 VDC by all Modules in column (B) ≤ Maximum current consumption shown in table
• Current required at 24 VDC for service power supply in column (C) ≤ Maximum current consumption shown in table
B. Calculate Maximum Total Power Supply (See the table below.)
• A × 5VDC+B× 24 VDC + C × 24 VDC ≤ Maximum total power consumption shown in column (D)
• The amount of current/power that can be supplied to the Modules mounted in a Rack is limited by the capacity of the
Power Supply Unit.
• Design the system so that the total current consumption of the Modules does not exceed the maximum current for
each voltage group and the total power consumption does not exceed the maximum for the Power Supply Unit.
Reference Table for Maximum Current Consumption
The following table shows the maximum currents and power that can be supplied by Power Supply Units on CPU Racks
and Expansion Racks.
Power Supply Unit Maximum current consumption (D) Maximum total
t
i
p
p
y
(A) 5-V group (B) 24-V group
relay driver power supply
(C) 24-V group
service power supply
(
)
power consumption
CJ1W-PA205R 5.0 A 0.8 A None 25 W
CJ1W-PA202 2.8 A 0.4 A None 14 W
CJ1W-PD025 5.0 A 0.8 A None 25 W
Note:1. When calculating current/power consumption in a CPU Rack — be sure to include the power required by the
CPU itself. When expanding the configuration, be sure to include the power required by the I/O Control Module.
2. When calculating current/power consumption in an Expansion Rack — be sure to include the power required by
the I/O Interface Module itself.
J Example Calculations
In this example, the following modules are mounted to a CJ1 Series CPU Rack with a CJ1W-PA205R Power Supply Unit.
Module Model Quantity 5VDC 24 VDC
CPU CJ1G-CPU45 1 0.910 A —
I/O Control Module CJ1W-IC101 1 0.020 A —
Input Modules
CJ1W-ID211 2 0.080 A —
p
CJ1W-ID231 2 0.090 A —
Output Modules CJ1W-OC201 2 0.090 A 0.048 A
Special I/O Module CJ1W-DA041 1 0.120 A —
CPU Bus Module CJ1W-CLK21 1 0.350 A —
Current
consumption
Calculation
0.910+0.020+0.080×2+0.090×2+
0.090×2+0.120+0.350
0.048 A×2
Result
1.92 A (≦5.0 A) 0.096 A (≦0.8 A)
Power consumption
Calculation
1.92×5V=9.60W 0.096 A×24 V = 2.304 W
p
Result
9.60+2.304 = 11.904 W (≦25 W)
P1-P3P4-P6P7-P9P10-P10

CJ1G-CPU43H

Mfr. #:
Buy CJ1G-CPU43H
Manufacturer:
Omron Automation and Safety
Description:
Controllers CPU CJ1 20k PRO G 64k DATA
Lifecycle:
New from this manufacturer.
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