Rowan Elettronica 280SI95 3-phase drive

The Rowan Elettronica 280SI95 is a three‑phase voltage‑regulated drive that uses SCRs and a tachometer feedback loop to maintain constant motor speed. Common failures on this model include phase‑loss due to insulation breakdown, SCR or diode burnout from overcurrent or overheating, and tachometer generator faults leading to erratic speed control. Initial checks should verify the input power supply voltage and current limits, inspect the drive’s PCB for burnt components or cracked solder joints, and review any diagnostic error codes displayed on the panel or via serial interface.[oss-gpt-20b]

Need your Rowan Elettronica repaired or tested?

We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

⚙️ Fast Diagnostics – Same-day evaluation available
🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
🧰 Expert Technicians – Decades of board-level experience
✅ 1-Year Warranty – Every repair fully guaranteed

📞 Call Now: 1 (336) 969-0110

Free Estimates • Industrial-grade testing • Nationwide Service

⚡ Call to Purchase AI Services — help us build the next Grace Blackwell GX10 node.

Industrial AI Hardware Recovery — Free Diagnostic • Pay Return Shipping Only

[oss-gpt-20b]

We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.