The Promicon Systems 6630.4196‑W1 is a servo power module designed to supply regulated DC bus voltage for industrial servo drives. Common failure modes in this class include overheating of the internal MOSFET array, degradation of the bridge rectifier or filter capacitors, and loss of protection circuitry (over‑current/over‑temperature). Initial diagnostics should verify that the input mains is within spec, check the output bus voltage against the module’s rating, inspect for visible signs of burn or capacitor bulging, and review any fault codes from the connected drive. If the module fails to supply power or shows erratic voltage, replace damaged components and re‑calibrate the protection thresholds.[oss-gpt-20b]