SINAMICS S120 Functi.. - Gregbotos.com

InfeedLine contactor control1.4 Line contactor controlDescriptionThis function can be used to control an external line contactor. Opening and closingthe line contactor can be monitored by evaluating the feedback contact in theline contactor. The line contactor is used for the electrical isolation of the DC linkfor the energy supply network.The line contactor can be controlled using the following drive objects:Via bit r0863.1 of drive object INFEEDVia bit r0863.1 of drive object SERVO/VECTORNoteFor more information on the line connection, see the Equipment Manuals.Example of commissioning line contactor controlAssumption: Line contactor control via a digital output of the Control Unit (DI/DO 8) Line contactor feedback via a digital input of the Control Unit (DI/DO 9) Line contactor switching time less than 100 msLine connectionL1L2L3Line contactorclosedAs output DI/DO 8p728.8 = 1 X122.7r0863.1 p0738 = 0863.1Line contactor energizedDI/DO 9Line contactorfeedbackX122.8p0860 = 0723.9 r0723.9 1p0861 =100 ms24 VActive Line ModuleT 0Fault=1 F7300”Line contactorfeedbackmissing”&& The current capacity of theoutputs must be observed.An auxiliary contactormay have to be used.Fig. 1-9Line contactor control1-38© Siemens AG 2006 All Rights ReservedSINAMICS S120 Function Manual, 03/2006 Edition