HBS758S Hybrid Servo Drive: Complete Guide to Industrial Automation Control

8 luty 2026

Historical parts record: Photos and notes below belong to this record. Confirm the offered unit’s full model, condition and available test evidence before ordering.

What this delivery is: two Leadshine HBS758S AC hybrid servo drives — closed-loop stepper drives for NEMA 34-class motors — brand new and original, one per carton with the connector kits bagged inside, received 2025-10-23, 4 kg for the pair per the record, one-year warranty. The label block settles the electricals: Model HBS758S, input 1-phase 75 VAC 50/60 Hz, output 0–75 V at 8 A, with each unit carrying its own serial — 994355895732592509MS20M on one, 994356895732525059M520M on the other — and the Leadshine Technology QR code and www.leisai.com web mark.

What "hybrid servo" means here

The HBS series is Leadshine's closed-loop stepper platform: a stepper motor fitted with an encoder, the drive watching that encoder and correcting position and load angle in real time. You get stepper torque at open-loop prices with servo-style behaviour — no lost steps under load, no nuisance over-travel alarms, and the drive only pushes the current the load demands, which is why it runs cooler and quieter than an open-loop stepper drive on the same axis. The HBS758S is the 75 V AC class of the family — feed it single-phase 75 VAC (a control transformer secondary, or the 60–80 VAC supply the platform expects) and it drives the motor at up to 8 A, which pairs it with the larger NEMA 34 closed-loop motors.

Item	Value on the label / shell / record
Product	Leadshine HBS758S AC hybrid servo drive (closed-loop stepper drive)
Input	1-phase 75 VAC, 50/60 Hz (AC L/N terminals, 75Vac print)
Output	0–75 V, 8 A to the motor (A+/A−/B+/B− pluggable terminal)
Interfaces	CN1 44-pin control connector; CN2 DB15 encoder feedback; CN3 mini-USB; Charge indicator; PE ground screws
Safety print	Connect PE before use; do not touch terminals within 10 minutes of power-off; do not touch the heatsink while powered (three-language warning block)
Serials	994355895732592509MS20M / 994356895732525059M520M — one per unit
Condition / quantity / weight	Brand new, original; 2 pcs, one per carton with connector kits; 4 kg; received 2025-10-23; 1-year warranty

Wiring it into a panel

The layout is self-explanatory once you see the side: power and motor on the grey pluggable terminal (AC L, AC N, A+, A−, B+, B−), control on the 44-pin CN1 (pulse/direction or the built-in I/O set), encoder loop on the DB15 CN2, and tuning on CN3's mini-USB with Leadshine's configuration software. The three warning blocks on the label are the ones people skip: bond the PE terminal before power — the drive's filter needs it; wait the ten minutes after shutdown before touching terminals, because the bus capacitor holds charge; and the finned top plate with its fan gets hot in normal service. Both drives carry factory QC-passed stickers on the top plate and ship with their connector kits in the box.

Photos

Drive side view — One drive from the side: teal housing with the Leadshine® mark, finned silver top plate with the cooling fan, and the grey pluggable power terminal at the left.

Interface side of both drives — The interface side of both drives: CN1 44-pin control, CN2 DB15 encoder, CN3 mini-USB, the MOTOR A/B terminal print with the 75Vac AC marking, and the HBS758S AC Hybrid Servo Drive label on the black top panel.

Rating labels — The two rating labels: Model HBS758S, input 1ph 75Vac 50/60HZ, output 0~75V 8A, individual S/N lines, Leadshine Technology Co.Ltd and www.leisai.com — plus the three warning blocks below.

Video walkthrough of both drives and their kits.

Both drives in cartons — Both drives in their cartons: foam cradles top and bottom, the left unit with its accessories bag on top — connectors and crimp shells in factory packaging.

Interface side close-up — The interface side straight on: Charge indicator, AC L/N 75Vac input, MOTOR A+/A−/B+/B− print, CN1/CN2/CN3 in line, PE ground screws and the earth symbol at the foot.

Top plate with QC sticker — The top plate at an angle: QC passed sticker on the silver base, the pluggable grey terminal seated, DB15 below — factory-fresh machining lines still on the heatsink fins.

Cooling fan close-up — The cooling fan and finned heatsink on the top plate: fan guard screwed to the extrusion, fin faces clean and unburred.

Both units top view — Both units from above: identical fan-and-fin top plates, QC passed stickers on the teal base strips, pluggable terminals hanging below each.

Base and carton view — The drives with their connector-kit bags on top, cartons open — the right bag shows the DB-style connector shells and crimp contacts.

Drive base corner — The base corner in close-up: silver anodised base extrusion, teal side vents, the finned top and fan visible above.

Second unit top view — The second drive's top plate: same fan-and-fin assembly, QC passed sticker on the base strip — the pair matched in build and finish.

Rating label close-up — The rating label macro: HBS758S, 1ph 75Vac 50/60HZ input, 0~75V 8A output, the S/N line and QR code, and the DANGER / Hazardous Voltage / High Temperature warning block with its PE reminder.

Related products on KOEED

Build the axis around it: the H2-758 closed-loop servo driver in the HBS758 fitting is the drop-in alternate on the same platform, and the Leadshine 86HS85D NEMA 34 motor, 8.5 N·m is the motor class this drive's 8 A output was sized for.

Need HBS758S drives from this pair, a matched motor, or a tuning-setup check for your axis? Send the part number — we confirm stock with photos.

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