Leadshine 3DM883 3-Phase Microstepping Driver: High-Performance Industrial Automation Solution
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One Leadshine 3DM883 microstep driver, version MS31A, is documented with its carton and terminal layout. The photographed case specifies a 20–80 V DC supply and a maximum current-table setting of 8.3 A peak / 5.9 A RMS. The entry dated 14 March 2026 gives a one-year warranty but does not explicitly classify the unit as new or used.
Identification and delivery details
The unit label and carton agree on 3DM883 and MS31A. The carton says 1 PC and MADE IN CHINA; the supply record also names China, but the packaging statement is not a separate provenance verification. A finned rear heatsink, guarded cooling fan, green terminal blocks and ten-position switch bank are visible.
The printed current table distinguishes peak and RMS values: its lowest row is 2.2 A peak / 1.6 A RMS and its highest is 8.3 A peak / 5.9 A RMS. The earlier description's 8.3 A RMS claim is contradicted by the photographed table. SW1–SW3 select the listed current rows, while SW4 is labelled idle current, ON 90% / OFF 50%.
The case lists motor terminals U, V and W, power GND and VDC, inputs PUL+/PUL−, DIR+/DIR− and ENA+/ENA−, and outputs BR+/BR− and ALM+/ALM−. The pulse/revolution table spans listed choices from 200 through 25,600; SW9 is labelled Step/Dir versus CW/CCW and SW10 smoothing mode. These are case instructions, not evidence of a powered motion test or the correct configuration for a particular motor.
| Item | Evidence |
|---|---|
| Identity / revision | Leadshine 3DM883; MS31A |
| Case supply marking | 20–80 V DC |
| Current-table limits | 2.2–8.3 A peak; paired RMS values 1.6–5.9 A |
| Current selectors | SW1–SW3; SW4 idle current ON 90% / OFF 50% |
| Motor connections | U / V / W; NC position also printed |
| Control inputs | PUL± / DIR± / ENA± |
| Outputs | BR± / ALM± |
| Pulse settings | Listed choices 200–25,600 pulses/revolution |
| Cooling / quantity | Finned heatsink and guarded fan; one unit |
| Condition / warranty / date | Condition unstated; one year; 14 March 2026 |
| Origin / record weight | China in supply entry and carton wording; 0.5 kg field |
Swipe or scroll horizontally to read the full table.
Electrical values and switch functions come from the clear case photograph. The maximum output setting is 8.3 A peak and 5.9 A RMS, not 8.3 A RMS. Version and quantity agree between unit and carton. No loaded-motor test is documented.
Matching this part
Match 3DM883 and MS31A, then provide motor phase arrangement, rated current and controller signal details. Select a supported current setting with peak and RMS kept distinct.
Confirm power-supply margin, signal-voltage selection, pulse mode and cooling clearance against the applicable instructions before connecting. Request functional testing and condition confirmation for the offered driver.
Photos and recorded media
Recorded inspection clip. The clip is retained as delivery evidence; no performance measurement is inferred from it.
Related records and products
The Siemens motor-protection breaker record covers separate protection hardware; it does not establish compatibility with this DC stepper-driver supply. Contact KOEED with your motor and controller details.
Request this part
Send 3DM883 MS31A, motor data, supply voltage and control-signal requirements. Confirm condition, functional-test scope and the one-year warranty.
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