Product Description:

The Danaher’s API series servo drive P325 is designed for hybrid stepper motors with six or eight leads. Its supply requirement is 115 V AC at 60 Hz and it integrates a cooling heatsink for thermal management. The drive weighs about 5 lbs, with a size of 4.25 x 5.0 x 10.0 inches and its case temperature limit is under 65°C during operation.

The P325 drive provides motor currents adjustable from 0.9 to 4.0 A/phase and its supported motors must have a minimum inductance of 0.5 mH. It supports NEMA 17 to NEMA 42 motors and its typical torque range is 15 to 800 oz.in. The unit matches the motor’s winding resistance and rated bifilar current through DIP switch settings. Its current increments can be set in steps of 0.1 to 1.6 A above the base level of 0.9 A. It offers micro-step resolutions from 200 to 25600 steps per revolution and it allows step angles from 1.8 degrees down to 0.014 degrees. This P325 drive accepts step input pulses up to 1 MHz of frequency and its required minimum pulse width of 1 microsecond. Its direction input requires a stable state before the first pulse and the provided enable input switch instantly on/off the current of motor. The unit’s low power input reduces holding current to 25% - 33% with the VCO option.

The P325 drive provides onboard velocity control with ramping feature that is adjustable between 100 ms to 5 seconds and its ramp ratio is selectable up to 50:1. It comes with a 3-pin and 7-pin connector for power input and motor output, respectively. The unit offers an 8-pin logic input for step, direction, enable and low power functions. It requires a +5 V logic supply for opto input and its fault transistors protects from over current, over temperature and under voltage conditions.