PaceMaster MPS-04343 controller

PaceMaster MPS‑04343 is a rugged DC motor drive controller (1/4 – 2 HP range) designed for single‑phase 115/230 V AC operation with linear speed control and built‑in EMI suppression. Common failure modes on this model include power supply board degradation (brown‑out, capacitor leakage), overheating of the main MOSFET or gate driver due to improper heat sinking, and firmware corruption that triggers “drive fault” alarms. Initial checks should verify input voltage stability, inspect the power supply PCB for bulging capacitors or burnt traces, and confirm motor wiring continuity; then review any error codes displayed on the controller’s panel and perform a short‑circuit test of the output terminals.[oss-gpt-20b]

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