HSD DPL150 Inverter

HSD DPL150 is a high‑speed servo drive inverter that uses an IGBT bridge protected by internal over‑voltage, over‑current, and short‑circuit circuitry. Common failure modes include burned or tripped IGBTs, blown gate driver ICs, damaged protection diodes, and phase‑to‑ground shorts caused by insulation breakdown. Start diagnostics by verifying the 48 V DC bus voltage, checking for any fault LEDs or error codes on the drive panel, inspecting the IGBT board for visible burn marks or swollen capacitors, and testing the gate driver outputs with an oscilloscope to confirm proper PWM signals.[oss-gpt-20b]

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