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BUS датащи(PDF) 23 Page - Christian Bürkert GmbH & Co. KG |
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BUS датащи(HTML) 23 Page - Christian Bürkert GmbH & Co. KG |
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23 / 42 page ![]() Type büS Network power supply 23 9 NETWORK POWER SUPPLY 9.1 Power segments Calculate the overall power consumption of all the devices in the network. Build power segments with a maximum load of 100 W. This refers to the M12 connector (A-coded). This component has a current limit of approx. 4 A. 9.1.1 One power segment In a network with one power supply, overall power consumption is limited to 100 W. 1 m 0.3 m 5 m 0.2 m Termination resistor TR TR TR TR PS PS Power supply max. 100 W Y Y Y 0.2 m 0.5 m Fig. 22: One power segment 9.1.2 Additional power supply For higher power consumption, use additional power supplies and Y-connectors with interrupt to utilise power from a second power supply. 1 m 0.3 m 5 m 0.2 m Y Termination resistor TR TR TR TR PS PS Power supply max. 100 W 1 m 2 m 5 m 0.5 m 0.5 m 0.5 m max. 100 W Y Y Y Y-connector with interrupt Y Y Y Y Y 1 m 1 m 0.5 m 0.5 m 0.2 m Fig. 23: Additional power supply 9.2 Rule of thumb The rule of thumb is that 1 W load per metre results in a voltage drop of 1 mV. A maximum voltage drop of 5 V is allowed. Some devices will shut down if the supply voltage is lower than 19 V. Therefore, refer to the respective data sheet for more information. |
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