Yaskawa Servo Repair · Replacement · Sourcing
Yaskawa SGDM / SGDH Servo Drive Repair & Sourcing Support
SGDM and SGDH digital servopacks power thousands of machine tools and production lines from the Sigma-II era. With OEM service support wound down, plants need a route for repair, replacement and sourcing of these drives.
What are Yaskawa SGDM / SGDH servo drives?
SGDM and SGDH are digital servo amplifier (servopack) families from Yaskawa’s Sigma-II generation, used with Yaskawa SGMG, SGMP, SGMS and related servo motors in machine tools, injection moulding, packaging and general automation. The Sigma-II family (SGDM / SGDH / SGDP / SGDJ) has been discontinued by Yaskawa, which recommends its Sigma-7 series as the current platform.
Why repair and sourcing demand exists now
- Yaskawa’s factory support has wound down for older servopack generations — Yaskawa Singapore’s discontinued-products notice (fetched 2026-09-02) lists the Sigma-III SGDS as discontinued in 2015 with factory repair service ending 20 March 2025, and documents the phased end of support across the Sigma family.
- Specialist third-party repair houses operate dedicated SGDM / SGDH service programs because the installed base remains large.
- Repair demand for Yaskawa SGDM / SGDH drives from Indian plants is documented and ongoing.
No stock or price is claimed on this page — every option is confirmed individually.
Typical fault context
Drives arriving for evaluation commonly show alarms on power-up, trip codes during motion, or a dead display. Because each unit and application differs, Star Automations does not publish model-specific repairability claims — repairability is confirmed per unit after technical evaluation.
Your routes with Star Automations
Repair path
Submit the drive for a technical evaluation. Send the model from the nameplate (e.g. SGDM-xxAD series) plus the fault code or symptom. Evaluation determines whether repair is practical.
Sourcing path
If a unit cannot be repaired, Star Automations can look for surplus, NOS or used SGDM / SGDH modules through its sourcing network. Exact model and revision from the nameplate are required for a meaningful search.
Replacement guidance
Yaskawa’s own migration direction is its Sigma-7 series. Moving from Sigma-II to Sigma-7 is an engineering project (wiring, tuning and sometimes motor pairing), so Star Automations treats it as a guided replacement review, not a drop-in sale.
What to send for a quote or evaluation
Please send a clear photo of the drive nameplate and the exact model printed on it (SGDM-xxxx or SGDH-xxxx), plus the fault code or symptom, and your machine brand/model if known. Photos can be sent directly through WhatsApp below — no account needed.
Yaskawa SGDM / SGDH — answers
Is my SGDM / SGDH still supported by Yaskawa?
The Sigma-II family is discontinued. Yaskawa’s published direction is its Sigma-7 series; factory service for earlier generations has ended (Yaskawa Singapore documented the SGDS factory repair service ending 20 March 2025).
Can Star Automations repair my SGDM / SGDH drive?
Repair is evaluated per unit. Send the model and fault details and Star Automations will confirm whether repair is practical — no model-specific repairability is assumed.
Do you sell SGDM / SGDH drives?
Star Automations does not claim stock on this page. If you need a unit, request sourcing and it will search surplus / NOS / used supply for the exact model.
What information do you need?
The exact model from the nameplate (SGDM-xxxx / SGDH-xxxx), revision if visible, the fault code or symptom, and your application or machine model.
What if the drive cannot be repaired?
Star Automations can then pursue sourcing of an equivalent module or support a replacement review toward a current platform — each route is confirmed individually before any commitment.
Looking for another part? Search the catalogue by part number, brand or model, browse the shop home, or ask Ask Star AI for guidance.
Working with an Allen-Bradley SLC 500 system instead? See our SLC 500 (1747) sourcing & replacement support.