Parker: Stepper Drive (E-AC Series)

Low Cost, Small Package, 120VAC Microstepping Drive

Compumotor's new E-AC is a low-cost, high-performance, high-reliability microstepping drive in a small package. The design of the E-AC is based on the design of our proven Zeta and OEM750 microstepping drives. It provides up to 3.5 Amps of current to the motor and accepts 120VAC direct-online power only. All step motors are subject to mid-range instability or oscillations. The E-AC incorporates an anti-resonance circuitry that aggressively and effectively suppresses these oscillations, thus taking advantage of the full capabilities of the step motor.

Performance:

• Designed for use with motor inductance of 0.5 mH - 80 mH

• 3-state current control allows the drive and motor to run cooler and more efficiently than 2-state drives

• Selectable resolution up to 50,800 steps/rev

• Auto standby reduces motor current (and heating) at rest

• Provides 0.02 Amps to 3.5 Amps (peak)

• 95 - 132VAC power supply input

• Four predefined current waveforms to optimize smoothness

Protection:

• Optically isolated step and direction inputs

• Short circuit protection – phase-to-phase and phase-to-ground

• Auto-run feature to verify proper system operation

• Over temperature circuitry protects the drive from thermal damage

Physical:

• Status/fault LED indicators to confirm proper operation

• ASIC and surface-mount technologies minimize product footprint, overall package size and increase product reliability

• Optically isolated fault output for embedded applications

• Simplified, 2-screw mounting

• Overall dimensions: 5.35 x 4.3 x 1.9 in. (133 x 109 x 48 mm)

• Certified as UL-recognized component

• Approvals: CE (LVD), and CE (EMC)