DCN4-TR4 Omron, DCN4-TR4 Datasheet - Page 123

• Manufacturer Part Number: DCN4-TR4
• Description: Std. Flat Cbl Trunk Line Press
• Manufacturer: Omron

Specifications of DCN4-TR4

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Supplying I/O Power
from Multiple Sources
3-5-7
Power Supply Errors
Cost Considerations
Power Supply Wiring
Other Precautions
Power supply
(24 VDC)
Supplying I/O power from multiple power supplies instead of from one power
supply enables reducing the line current, reducing the voltage drop, and
decreasing the size of the cable. Using multiple power supplies should also be
considered to increase system safety when power supply errors occur.
The location of power supplies and the grouping of Slave Units should be con-
sidered based on whether the overall system is to be stopped when a power
supply error occurs.
If it is necessary to prevent the overall system from stopping to ensure system
safety, consider placing power supplies in more than one location and con-
sider the way Slave Units should be grouped when supplying power.
Also consider the power supply methods in light of the total cost, including the
following items:
The capacity and number of power supplies, Cable thickness (allowable cur-
rent) and length (voltage drop), System safety, and Wiring work.
Power supply
(24 VDC)
1
I
1
Slave
2
I
2
Load
Slave
Slave
Slave
3
Power supply
(24 VDC)
I
3
Load
Slave
Slave
If a stable power supply voltage cannot sup-
plied to the end load, place the power supply
in the middle of the network.
4
I
4
Load
Slave
Design the wiring so that a sta-
ble power supply voltage is sup-
plied to the end load.
Slave
Power supply
(24 VDC)
Load
Section 3-5
99