The Heckert FW400 circuit board is the control logic module for a WMW‑Heckert vertical mill, handling spindle drive, axis motion and interlock functions. Common failure points on this class of industrial drives include power supply decoupling capacitor degradation, burnt I/O driver chips, and worn stepper motor drivers that cause erratic axis behavior or loss of spindle control. First‑check steps: verify the 24 V DC rail voltage and look for brownouts, inspect the board for burn marks or swollen electrolytics, and test the input/output signals with an oscilloscope or logic probe to confirm proper communication with the motor drives and safety interlocks.[oss-gpt-20b] |
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Heckert FW400 Circuit BoardIndustrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
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No walk-ins accepted.