Application Solution
The novel filter system is equipped with compact, integrated drive systems comprising a geared motor and an intelligent frequency inverter. Depending on the size,each Dynamos system contains a number of parallel shaft geared motors – one per shaft, at up to 16 shafts – that rotate the filtration disks. In addition, every system has one or two tanks for the medium, equipped with four drive units each. Every such unit is an integrated drive solution fitted with a motor-mounted SK 200E series frequency inverter, which enables highly precise speed control with no the need for sensor feedback. Another integrated NORD drive serving the circulation pump completes the distributed drive setup.
Lower energy consumption. – The inverters’field-oriented control technology allows for adjusting magnetic flux in the motor during partial-load operation, which limits energy consumption to a fraction of the rated power. The drives provide flexible networking capabilities to accommodate the fieldbus of choice. For cost-saving networking,up to four drive units can communicate with the PLC using a technology option, with connections to each other via the inverters’integrated, CANopen-based system bus. Safety features for SIL 3 applications in accordance with EN 61508 are also available on request.
Tried and tested cooperation. – NORD and TMCI Padovan have collaborated on a number of projects over several years: NORD has previously supplied drive solutions for other TMCI Padovan machines as well, e.g. for vacuum filter systems, vegetable oil processing machines, and tunnel pasteurizers.