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System Supply • 31AlignmentWAGO-I/O-SYSTEM 750INTERBUSAttentionResetting the system by switching on and off the system supply, must takeplace simultaneously for all supply modules (coupler/controller and 750-613).2.7.2.2 AlignmentRecommendationA stable network supply cannot be taken for granted always and everywhere.Therefore, regulated power supply units should be used in order to guaranteethe quality of the supply voltage.The supply capacity of the coupler/controller or the internal system supplymodule (750-613) can be taken from the technical data of the components.Internal current consumption*) Current consumption via system voltage:5 V for electronics of the bus modules andcoupler/controllerResidual current for busterminals *)Available current for the bus modules. Provided bythe bus power supply unit. See coupler/controllerand internal system supply module (750-613)*) cf. catalogue W4 Volume 3, manuals or internetExample Coupler 750-301:internal current consumption:350 mA at 5 Vresidual current forbus modules: 1650 mA at 5 Vsum I (5V) total : 2000 mA at 5 VThe internal current consumption is indicated in the technical data for each busterminal. In order to determine the overall requirement, add together thevalues of all bus modules in the node.AttentionIf the sum of the internal current consumption exceeds the residual currentfor bus modules, then an internal system supply module (750-613) must beplaced before the module where the permissible residual current wasexceeded. |
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