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Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

PFSK162 3BSE015088R1 Channel control card

Control functions (Watchdog) The control board has an internal watchdog. The watchdog trip has the following effects: - Thyristor firing control is reset and disabled. - Digital outputs are forced to '0 V'.The DCS 400 converter has an build-in three-phase field exciter with the following features: • smoothed field voltage - better commutation of the motor - increased brush life • less heat generation in the motor • less effort of cabling Remark: The DC link capacitor of the IGBT based field exciter serves as an overvoltage protection for the armature converter. Overloading of the DC link capacitor is prevented by the connected motor field winding. The energy of glitches caused by the commutation of the armature converter is no longer waste energy but is used by the field exciter. The overvoltage protection only works if a field winding is connected. Therefore DCS400 can not be used with disconnected field.Important note: Nominal field voltage and field current of the motor has to be within the field controller operating range. For application with constant field it is easy to check: Transfer values of field current and field voltage to the diagram and check that the point of intersection is within the operating range.

Continual parameter writing destroys the FlashProm

 Parameter are saved automatically in a background routine. This is done approx. every 5 seconds, when: • parameters are altered by means of the control panel. • parameters are transmitted by means of PC Tool Drive Window Light, irrespective of whether the content of the parameter has changed. • parameters are transmitted by means of PLC communication via one of the three serial ports Field bus adapter or RS232-Port or PanelPort, irrespective of whether the parameter’s content has changed. Continual transmission of a parameter with the same content will entail continual saving in the background routine, i.e. even if the value of the parameter does not change, the save routine will still be activated. A FlashProm of the present-day generation can be written on and erased up to 100,000 times. This means 100,000 x 5 seconds = approx. 6 days.Macros are pre-programmed parameter sets. During start-up, the drive can be configured easily without changing individual parameters. The functions of all inputs and outputs and of allocations in the control structure are influenced by the selection of a macro. Any allocation which can be set manually with a “selector” (parameter) is preset by the selection of a macro. The means, whether the drive is speed-controlled or torque-controlled, whether supplementary references are processed, which actual values are available at the analog outputs, which reference value sources are used, etc. is already defined in the macro.