Yaskawa
Yaskawa Servo Amplifier Repair (Sigma / SGD / SGDH / SGDM / SGDV) — Mail-In
Component-level repair for Yaskawa servo amplifiers (Servopacks): legacy Sigma / Sigma-II (SGD, SGDM, SGDH), Sigma-5 (SGDV), and related. Free evaluation, firm quote, typical repairs $400–$900.
Coverage: SGD · SGDA · SGDM · SGDH · SGDS · SGDV (Sigma-5) · Sigma-7 evaluated
✓Fixed — or it's free
Unrepairable units are refunded; evaluations cost $0
✓24-month warranty
Every repair covered, parts and labor
✓3–5 business days bench time
Rush (1–2 day) and emergency service available
✓Program preserved
Your application and settings stay in the unit
Symptoms this repair fixes
- ✓A.10 overcurrent and power-stage alarms
- ✓A.30 / A.32 regeneration faults
- ✓Dead servopack
- ✓Encoder alarms traced to the amplifier
Honest limits
- ✕Motor/encoder-side failures (identified at evaluation)
What you get
- ▸Free bench evaluation and firm quote
- ▸IGBT/IPM power-stage replacement
- ▸Control supply and encoder-interface repair
- ▸Full recap as standard
- ▸24-month warranty
Common part numbers we see
Part-number pages for this service
What to ship
- ▸The servopack only
- ▸Alarm code + application details
Full packing guidance: mail-in instructions.
Ship your unit to
USPS
Control Board Lab
PO Box 120241
Arlington, TX 76012
UPS / FedEx
Control Board Lab
1009 Oakwood Ln # 120241
Arlington, TX 76012
Write your RMA number on the outside of the box and include it on a note inside. Units over 50 lb (large VFDs, spindle drives, industrial PCs in enclosures) ship by freight — contact us before ordering and we will arrange dock-to-dock shipping.
Frequently asked questions
Yaskawa's own factory repairs these — why send it to you?
Yaskawa runs a genuine factory-repair program and it is a fair option for current products. For legacy Sigma/Sigma-II units the factory path often routes to "replace with current generation" — a migration project. We repair the exact unit you have, keeping motors, cables, and parameters untouched.
Start with a free evaluation
Ship it in, get a firm quote, approve before any work — pay nothing if it can't be repaired.
The Fixed-or-Free Guarantee: if we can't repair it, you don't pay for the repair.
Call (817) 799-7332 · 📱 Text us a photo of your unit · Email repairs@controlboardlab.com