Power Supply Section 2 Transmission Media and Components
54 9ARD000015-600
Power Supply
The following specifications must be followed when the user designs the power
supply or while establishing the power delivery aspects of the network, including
the device voltage regulator:
• Power Supply Specifications.
• Network Voltage Tolerance Design Stack Up.
• Network Voltage Drop Budget.
• Schottky Diode Specifications.
•DC/DC Converter.
Power Supply Specifications
Table 48 lists the specifications for the DeviceNet power supply connection. These
specifications are applicable to single supply, multiple supply, and the nodes that
provide power supply to the network.
Operating ambient
temperature
-40° C .. +70° C (158° F) with maximum
continuous power on all conductors.
De-rate linearly to 0 amps at 80° C.
Storage temperature -40° C .. +85° C
Table 48. DeviceNet Power Supply Specifications
Specification Parameter
Initial Tolerance 24 volts +/- 1% or adjustable to 0.2%
Line Regulation 0.3% maximum
Load Regulation 0.3% maximum
Table 47. Environmental Specifications for Internal Power Drop Conductor
Applicable Environmental
Characteristics
Specification
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