Reer Aus X Series Use And Maintenance

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CONTROL UNIT SERIES AUS X30 8540643 - 26/08/2016 Rev.13K1K2 FEEDBACK inputUsing the K1 and K2 auxiliary safety contactors with guided contactsafety type, it is necessary to connect the +24Vdc to thethrough the series of the K1-1 e K2-1 N.O. controlcontacts. The control of the correct switching of K1 and K2 isperformed with a delay of 300ms after the real command.When the K1-1 e K2-1 N.O. control contacts are not used (or no controlis provided) it is mandatory to connect the terminal 20( ) to the terminal 21 ( ).SYSTEM STATUS outputThe SYSTEM STATUS output reports exactly the output safety relays status : When the output relays are opened, the SYSTEM STATUS reports 0VDC. When the output relays are closed, the SYSTEM STATUS reports+24VDC.INSTALLATION AND ELECTRICAL CONNECTIONS Install the AUS XM control unit in an environment with a protection rating ofat least IP54. If more modules AUS XM must be installed in the same board panel, in orderto avoid overheatings, maintain between them one minimal distance of 2cm. The AUS XM control unit must be supplied with a 24Vdc 20. The external power supply must comply with the standard EN 60204-1. During the installation of the AUS XM control unit be sure to avoid shortcircuits between the contacts 17 and 18.Characteristics of the output circuit.For the output circuit, the control unit uses two guided contact safetyrelays.These relays are rated by the manufacturer for voltage and currentvalues above those indicated in the technical data; however, to assurecorrect insulation and to avoid damage or premature aging, protecteach output line with a 4A slow-blow fuse and check that loadcharacteristics comply with the indications given in the table below.Minimum switching voltage 18 VdcMinimum switching current 20 mAMaximum switching voltage 250VacMaximum switching current 2A