Other Precautions - Omron CJ Series Operation Manual

4 Installation and Wiring

4-4-7 Other Precautions

Power Supply Errors
The location of power supplies and the grouping of Slave Units should be considered 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 consider the way Slave Units should be grouped when
supplying power.
Cost Considerations
Also consider the power supply methods from the point of view of the total cost, including the following
items:
Capacity and number of power supplies
Cable thickness (allowable current) and length (voltage drop)
System safety
Wiring work.
4-44 CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)