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Stepper drives

Next generation supports CANopen

Applied Motion Products (U.S.A.) has introduced another series of stepper drives that support a range of industrial fieldbus network protocols including CANopen.

Besides CANopen, Ethercat, Ethernet/IP, Modbus, Ethernet, and EIA-485 as well as a proprietary Serial Command Language (SCL) are supported (Photo: Applied Motion Products)

By accepting high-level commands via a network connection, STF Stepper Drives provide system designers and machine builders to control step motors using the network protocol of their choice. This could be CANopen, for example. These advanced stepper drives consolidate motion control functions into the application software of the primary logic or machine controller, rather than in individual axes.

These DC-powered micro-stepping drives also run stored programs created with Applied Motion Products’ Q Programming language. Q Programming provides a range of motion profiles, multi-tasking, math functions, conditional processing, and data register manipulation. Operators can configure drives and create Q programs using the STF Configurator software available as a free download from the company’s website.

Designed to work with a range of 2-phase step motors, the stepper drives offer current control with an anti-resonance algorithm that electronically dampens motor and system resonances. Torque ripple smoothing decreases motor noise and vibrations. The drives exist in three power ratings:

  • STF03: 12 VDC to 48 VDC input, up to 3,0 A/phase (peak-of-sine) current output. Lowest power of the series; ideal for smaller motors starting at Nema 8 frame size.
  • STF06: 12 VDC to 48 VDC input, up to a 6,0 A/phase (peak-of-sine) current output. Mid-range power within the series.
  • STF10: 24 VDC to 70 VDC input power, up to a 10,0 A/phase (peak-of-sine) current output. Highest power for largest step motors including high torque Nema 34 frame size.

All drives feature two CANopen connects ports (dual-port) for daisy-chaining of multiple drives to the host controller.

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