Yaskawa SGMAV-08ADK-HA21 Servo Drive — Sigma-V 0.75kW MRO Replacement

Yaskawa · Sigma-V / Sigma-II · 0.75kW AC Servo Amplifier · In stock

The SGMAV-08ADK-HA21 is a 0.75kW (750W) AC servo drive from the Yaskawa Sigma-V and Sigma-II family, designed for direct drop-in replacement of legacy SERVOPACK amplifiers on packaging, semiconductor, robotics and machine-tool lines. The HA21 suffix indicates the analog / pulse-train command interface variant (not MECHATROLINK or EtherCAT), which is the most common configuration found on mature MRO work orders where the original controller still issues ±10V or step/direction references. Pairs natively with Yaskawa SGMJV / SGMAV / SGMSV servo motors and is commissioned from a Windows PC using Yaskawa’s SigmaWin+ Motion Tool. This listing is written for the maintenance engineer who needs a stand-alone replacement drive — not a multi-axis machine builder — so the tone below is intentionally practical: wiring, parameter restore, alarm reset, hand- jogging.

1. Key Technical Specifications & Overview

The SGMAV-08ADK-HA21 sits in the lower-power band of the Yaskawa Sigma-V lineup, which is the company’s mainstream rotary-servo platform used across most factory-automation OEMs that have standardised on Yaskawa motion since the early 2010s. It accepts 200V single-phase or 3-phase input, drives a 750W-class rotary servo motor to 3000 rpm (or 4500 rpm on constant-velocity fields), and reads absolute position from the connected motor’s 17-bit serial encoder. The HA21 command interface makes it functionally interchangeable with the older Sigma-II SGDM and SGDH series for MRO work — the parameter numbering differs but the wiring pin-out and encoder protocol are field-replaceable in most cabinets. Cross-brand context: Siemens Sinamics V60/V80 and Mitsubishi MR-J2S / MR-J3 sit in the same power band; engineers migrating cabinets between brands should compare encoder resolution, regen-resistor sizing and command-signal scaling before assuming pin-for-pin drop-in.

2. Application Scenarios & Where It Fits

This drive is the right pick when a cabinet already speaks analog or pulse commands and you are not retrofitting a fieldbus. It is the unit MRO buyers reach for on the following lines:

• Semiconductor back-end equipment — die-bonders, wire-bonders, pick-and-place where a 750W rotary axis positions a tool head under ±10V command from a supervisory PLC.
• Packaging machinery — horizontal form-fill-seal, vertical form-fill, label applicators and cartoning heads running step/direction from a controller in the Allen-Bradley or Omron ecosystem.
• Printing and labelling — web-tension control and registration axes where torque-mode operation of the SGMAV-08ADK-HA21 holds back-pressure on rewinds.
• Machine tools and small CNC retrofits — tool-changer axes, ATC arms, chip-conveyor drives and parts-loader arms typically paired with a Fanuc or Mitsubishi CNC.
• Robotics and AGV cells — small SCARA arms and AGV steering/auxiliary axes in mixed-brand lines that also carry Schneider Lexium or Panasonic Minas drives on the larger axes.
• Food & beverage indexing conveyors — cam-style electronic gearing where the SGMAV-08ADK-HA21 follows a master encoder in speed mode.
• Vision-inspection stations — stage drives in KEYENCE CV-5000 / XG-7000 lines that move the part under a fixed camera.

Browse the full Yaskawa servo and motion-control lineup at KOEED or the complete multi-brand catalogue if you are comparing this drive against equivalent models from Siemens, Mitsubishi, Omron, Fanuc, Schneider, Panasonic, KEYENCE or Allen-Bradley.

3. Integration & Wiring Notes

For a maintenance technician replacing a failed unit, the wiring is the make-or-break step. The HA21 command interface uses a 50-pin CN1 connector for I/O and a dedicated CN2 encoder port. Power lands on the L1/L2/L3 (or L1/L2 for single-phase) and the regenerative resistor is wired to B1/B2. Keep the following in mind during swap-in:

• Main power isolation. Confirm the upstream MCB or contactor is open and locked out before landing L1/L2/L3; the internal bus capacitor holds charge for several minutes after power-off and will damage the drive if shorted.
• Single-phase vs 3-phase. The SGMAV-08ADK-HA21 will accept 200V single-phase on L1/L2 for cabinets without a 3-phase feed, but derate continuous output by ~30%.
• Encoder cable. Use a shielded Yaskawa JZSP-CSPxx cable; third-party encoder cables frequently cause intermittent A.41 or A.42 alarms — search the KOEED PLC Error Code Database if the alarm repeats after the swap.
• Command signal scaling. Parameter Pn300 sets analog-command scale; Pn202 selects pulse-train format (directional + pulse, or CW/CCW pulse). On a Sigma-II replacement, copy the old drive’s Pn202/Pn300 values into the new unit before jogging.
• 24V control power. The drive has a separate 24V DC logic supply on CN1 pins 1/2 — do not back-feed from the main 200V bus or the control board will not initialise.
• Earthing. The FG terminal must land on the cabinet star-ground; floating grounds are the single most common cause of A.C1 (encoder checksum) faults on a fresh install.
• Stacking with other brands. Running Sigma-V drives in the same cabinet as Siemens Sinamics V90 or Mitsubishi MR-J4 is supported; separate the encoder cable from the power cable by at least 100 mm and route the regen resistor pigtail directly back to the drive.

4. Installation & Commissioning Tips for MRO Swaps

For a stand-alone replacement, the standard commissioning loop is short. The intent is to clone the old drive’s parameter file, perform a hand-jog, and then return the machine to production. Use KOEED AI Diagnostic if a step stalls.

1. Back up the old drive. Connect SigmaWin+ to the failed drive (if it still powers up), then File → Parameter → Save to File. If the old drive is dead, the original commissioning sheet from the OEM is the next best source.
2. Clone parameters. On the new SGMAV-08ADK-HA21, write the saved file back via SigmaWin+ and cycle control power. Confirm no A-class alarms on the 7-segment display.
3. Hand-jog. With the servo-on (S-ON) input held off, run a slow JOG command via SigmaWin+ to confirm motor rotation direction matches the encoder counting direction (no A.81 alarm).
4. Auto-tune inertia. Run the one-touch autotune (Fn001) with the mechanism unloaded. For vertical axes, add a counterbalance check before unbraking.
5. Validate the analog command. Apply 0V and 10V reference from the upstream controller and check the motor follows at the expected rpm; adjust Pn300 if scaling is off.
6. Restore S-ON and run a dry cycle. With the supervisor PLC in Manual, run one full machine cycle. Move to Auto only after the dry cycle is clean.
7. Log the parameter file. Save the new file to the machine’s documentation folder and to the KOEED BOM record so the next MRO event is one download, not a re-tune.

If the drive throws an alarm on first power-up, walk the seven-segment against Sigma-V alarm code A.00–A.99 in the KOEED error-code database; A.C1, A.41, A.42 and A.81 cover roughly 80% of MRO fault-on-install cases. For legacy Sigma-II cabinets, also see Sigma-II spare drives to keep a known-good spare on the shelf.

5. Procurement, Warranty & Lead Time

KOEED sources Yaskawa Sigma-V drives from authorised channels and the same multi-brand logistics network that covers Allen-Bradley, Siemens, Mitsubishi, Omron, Fanuc, Schneider, Panasonic and KEYENCE, so multi-line orders ship in one consignment. All units are inspected, parameter-cleared and visually verified before packing. Every SGMAV-08ADK-HA21 ships with:

• Worldwide shipping with DHL / FedEx / UPS and full export documentation.
• A written warranty statement included in the box.
• 24-hour quote turnaround on business days; most regional orders ship the same week the BOM is confirmed.
• Option to combine the drive with the matching Yaskawa SGMJV / SGMAV servo motor, encoder cable and braking resistor as a single BOM line.

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