Copley Controls Corp. 220 MASTER DC Power Amplfier Module

The Copley Controls Corp. 220‑Master DC Power Amplifier Module (model 220‑10) is a high‑current, low‑voltage amplifier used in precision motion control systems such as servo drives and motor controllers. Common failure points for this class of modules include burnt or swollen electrolytic capacitors on the input/output rails, damaged MOSFETs or IGBT packages from over‑temperature or voltage spikes, and degraded PCB traces due to thermal cycling. Begin diagnostics by verifying that the supply rail (20 VDC–85 VDC) is within spec and stable under load; check all I/O connections for continuity and proper polarity; then inspect the board visually for cracked components, discoloration, or residue from overheating.[oss-gpt-20b] Post Comment

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