Hydraulic System Solutions for Plastics Processing ... - Bosch Rexroth

18Fieldbus Technology – Decentralized Intelligencefor More Flexibility in Modular Machine SystemsFieldbus technology – componentswith fieldbus communication offerhigh flexibility in modern systemsPumpThe DFEC offers all the advantagesof DFE control plus the benefits ofdigital electronics and fieldbustechnology. With the CANopencommunication protocol all controlinformation shown below on themachine or PLC is accessible. Theresult is improved axis control andgreater flexibility.ValvesThe IAC valve family from Rexrothoffers extensive control functionalitiesin a very confined space,specially optimized for hydraulicaxes. The directly connected sensors(analog/digital) also reduce cablingin the machine.Pump and valve functionalities• Parameter sets are available forindividual optimization of theindividual axes:– Optimization of each axis– Greater accuracy– And thus faster and moreaccurate transitions– Shorter cycle times• Selection of available parametersets in real-time• Power limiters can be switchedon or off.• Leakage compensation can beswitched on or off.• Simplified switching of masterslavepump systems• Switching between multiple pressuretransducers for improvedcontrol quality• Easy transmission of settings toother systems• Auto-calibration function– Offset of pressure transducers– Valve zero point– Swivel angle zero point– Swivel angle gain• Real-time diagnostics– Diagnostics of pump/valvestatus– Changes in system behaviorcan be diagnosed and rectified• Improved monitoring– CAN communication– Controller error– Cable break in valve, swivelangle transducer, pressuretransducer– Temperature– Supply voltage