NEXTSTEP 2027 Kollmorgen
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The Kollmorgen NEXTSTEP 2027 is a single axis microstepping drive from the NEXTSTEP Microstepping Drives series. It features an optically isolated command interface, a maximum pulse rate of 2 MHz, and supports standard resolutions up to 50000 steps per revolution. The drive operates with a 2-phase hybrid permanent magnet motor type and has dimensions of 5.4 by 2.5 by 5.4 inches.
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Product Description:
The NEXTSTEP 2027 is a single-axis microstepping drive manufactured by Kollmorgen for the NEXTSTEP Microstepping Drives series. Designed to excite two-phase hybrid permanent-magnet stepper motors, the unit converts high-speed pulse and direction commands from motion controllers into finely incremented phase currents. By dividing the native 1.8-degree full step into selectable microstep resolutions, it enables smoother low-speed motion, reduced acoustic noise, and improved positioning accuracy in pick-and-place heads, indexing tables, and laboratory instruments.
The drive fits inside compact control enclosures because its housing measures 5.4 inches high × 2.5 inches wide × 5.4 inches deep. An optically isolated command interface shields internal logic from ground loops while accepting step inputs up to 2 MHz. Each step pulse must be present for at least 250 ns. Direction information must precede the first pulse by 0.4 µs to ensure proper phasing. Power devices commutate at 20 kHz, moving the switching frequency beyond the audible range and limiting motor torque ripple. Standard output resolutions range from 5,000 to 50,000 steps per revolution, while low-resolution modes extend down to 200 steps per revolution. Onboard switches allow the required output resolution to be selected for the connected motor and motion profile.
The drive operates at a maximum ambient temperature of 50 °C and at elevations not exceeding 2,540 m. A fault collector transistor is provided to transmit alarm signals to an external controller. The transistor can sink or source signals at a maximum of 50 mA and 30 VDC, allowing the controller to react to overtemperature, overcurrent, or loss-of-step conditions. When microstepping is not required, the controller can revert to the fundamental full-step increment of 1.8°. This full-step mode supports legacy motion profiles and simple test routines without requiring microstep commands. The optically isolated input and fault output also help separate the motion controller from electrical noise generated by motor switching.
