MAY-JUN 2018

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INTECH MAY/JUNE 2018 47 The AMP8000 distributed servo drive system integrates a servo drive directly into a servomotor. By relocating the power elec- tronics directly into the machine, a control cabinet can house a single coupling module and supply power to multiple servo drives with a single cable via the distribution module. With the AMP8000, space requirements for drive technology inside electrical cabinets are reduced to a single coupling mod- ule. Via EtherCAT P technology, which provides EtherCAT signals and power over one cable, a coupling module can control up to five distributed AMP8000 servo drives via an IP 67–protected AMP8805 distribution module. Because the entire AMP8000 system can be cascaded, companies can implement complex motion systems. The power module is located at the back end of the motor shaft, so the attachment dimensions of the distributed servo drives are identical to those of standard AM8000 series servo - motors. The only dimensional change is to the overall servo- motor length, which is extended by approximately 7 cm. The AMP8000 distributed servo drive system is available in flange sizes F4 and F5. Various models are available with power ratings from 0.61 kW to 1.23 kW and standstill torque ratings from 2.00 Nm to 4.8 Nm (F4) or power ratings from 1.02 kW Distributed servo drive Hot Stuff for the Automation Market | products & resources Stepper drives The family of STR stepper drives has two new AC-powered units for use in industrial applications. Offering the benefits to 1.78 kW and standstill torque ratings from 4.10 Nm to 9.7 Nm (F5). STO and SS1 safety functions are integrated into the AMP8000 series by default, and a range of additional safe mo tion functions are in preparation. Beckhoff Automation, of low noise, smooth motion, and high torque over wide speed ranges, the STRAC stepper drives bring motion control to basic step and direction applications. Units are suitable for larger motors and applications requiring maximum power. Like their DC-powered counterparts, the stepper drives have microstepping performance and current control with antiresonance that improves motor smoothness and torque over a wide speed range. Units operate on AC supply volt- ages of 90 VAC to 240 VAC and wire directly to 120 VAC or 220 VAC line voltages to eliminate DC power supply re quirements. The drives internally convert AC line voltages to high DC bus voltages to drive large step motors at maxi- mum power. Available in two models, the STRAC2 provides up to 2.2 A per phase, while the STRAC8 provides up to 8.0 A per phase. Every stepper drive in the STR series operates in step and di- rection or pulse/pulse control mode. Select between the two modes by moving a jumper located under the drive cover or via a dip switch on the front panel. Each drive microsteps to 25,000 steps/rev with a 1.8° step motor (1/125 step) even when command pulses are low resolution—thanks to the proprietary step smoothing filter. Users can set up drive pa- rameters—including motor selection, current, and step reso- lution—using dip or rotary switches. No software is required. Applied Motion Products,

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