Schneider Altivar ATV71 repair and refurbishment.
Component-level repair for the Altivar ATV71 high-performance drive. Bench diagnostics, engineer-led, tested before return.
Altivar ATV71 repair and refurbishment
The Altivar ATV71 is a high-performance drive supporting both open-loop and closed-loop vector control, covering 0.75 kW to 800 kW. Its more complex control architecture — including encoder feedback options and multi-drive topology support — demands careful fault diagnosis to avoid misidentifying the cause of failure.
Common Altivar ATV71 faults we fix
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IGBT power module failure in the inverter section — a common ATV71 fault presenting as OCF or SCF alarms, often after a supply transient
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Power supply board faults causing control card resets or drive inhibit conditions without a primary power stage fault
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Brake chopper circuit failure causing OBF (brake fault) alarms during deceleration on high-inertia applications
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Encoder feedback option board failure causing closed-loop instability, speed oscillation, or drive inhibit on high-performance applications
How it works
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1
Send details
Share the drive model, fault symptoms, and any photos or error codes.
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2
Diagnostics
Bench diagnostics isolate the fault and scope the repair.
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3
Repair, Refurbish & Test
Component-level repair and thorough refurbishment with outcomes tested before return.
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4
Return to service
Confirmed results and return logistics for your drive.
Why Electron Lab
- Engineer-led bench diagnostics
- Component-level repair and rework
- Tested Before Return
- Clear, fast quoting
Altivar ATV71 repair FAQs
My ATV71 shows an InF fault — what does this indicate?
InF (internal fault) codes on the ATV71 can indicate a range of internal hardware faults. The specific sub-code is important for diagnosis — we carry out a full bench assessment to identify the root cause.
Can you repair an ATV71 with a failed encoder option card?
Yes. Encoder feedback option card failure is within our diagnostic scope. We identify the failed card, source a compatible replacement, and verify closed-loop operation before return.
Do you repair ATV71 drives used in crane and hoist applications?
Yes. Hoist and crane applications place specific demands on the brake chopper and motor holding functions. We advise on the specific repair scope relevant to these high-safety applications.