Strac stepper drives feature advanced microstepping performance and current control with anti-resonance designed to improve motor smoothness and torque over a wide speed range. Units operate on ac supply voltages of 90 to 240 Vac and wire directly to 120- or 220-Vac line voltages to eliminate dc power supply requirements. The drives convert ac line voltages to high dc bus voltages internally to drive large step motors at maximum power. Available in two models, the Strac2 provides up to 2.2 A/phase, while the Strac8 provides up to 8.0 A/phase. The drives operate in step and direction or pulse/pulse control mode.
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