Weldlogic G3660-2C4 Weld Control

The G3660‑2C4 is a Weldlogic weld control module that manages power delivery, welding parameters, and safety interlocks for automated arc welding systems. Common failure points on this class of units include degraded power supply rails (±12 VDC), burned or tripped MOSFETs in the current regulation circuit, shorted or cracked signal traces on the PCB, and failed watchdog timers causing loss of control signals. First‑check diagnostics: verify all input voltages to the board with a multimeter, inspect for visible burn marks or component damage, and review any error codes displayed on the system’s HMI or log output; if possible, perform an I/O continuity test between the controller and welding power supply.[oss-gpt-20b]

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