Nikki Denso NPST-11CS power unit

Nikki Denso NPST‑11CS is an industrial AC‑DC power supply module used to feed servo drives and motor controllers. Common failures on this model include overheating of the switching MOSFETs (often due to overcurrent or shorted output loads), failure of electrolytic capacitors in the rectifier/filter stages, and insulation breakdown in the transformer windings. First‑check diagnostics: verify input voltage and polarity at the AC terminals; inspect the output rail for correct DC level and ripple with a multimeter/oscilloscope; visually examine the board for burnt components or cracked solder joints and review any recorded fault codes from the drive’s diagnostic interface.[oss-gpt-20b]

Need your Nikki Denso 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.