5430

5430 is a Pacific Scientific drive in the 5000 Stepper Drives series. It uses a two-phase bipolar chopper topology to regulate current through a two-phase stepper motor. The rated full-step current is 5 A per phase, and the finest step resolution is 1/125 of a full step for precise incremental motion. Its maximum full-step pulse rate is 40,000 pulses per second, while the minimum step pulse width is 2.25 µs. A minimum ramp time of 50 ms supports controlled acceleration and deceleration.

The drive accepts single-phase, 120 V AC input power at 60 Hz, with a maximum input current of 5 A RMS. Its nominal DC bus voltage is 65 V DC, which supplies the drive’s power stage. The nominal chopper frequency is 20 kHz for motor-current regulation. Optical isolation separates signal inputs from the drive circuitry, helping protect control equipment from electrical interference.

Idle current reduction lowers the motor current by 50% when motion is not required, reducing motor heating and power consumption. The unit is cooled by natural convection without forced-air cooling. It can deliver full current at operating temperatures up to 50ºC.