ABB TST-FU3P-BP Drive Control Board

TST‑FU3P‑BP is a 3‑phase drive control main board (400–460 VAC, 5 A) used in gate/door and industrial motor applications. Common failure modes include power supply or rectifier faults, burnt MOSFETs or IGBTs, relay contact wear, and firmware errors that trigger fault codes. First‑check diagnostics: verify the input AC voltage and DC bus levels; visually inspect for scorch marks or blown components on the board; confirm all I/O signals and status LEDs are functioning and review any stored error codes in the controller’s diagnostic log.[oss-gpt-20b]

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