okuma machinery works BL-D50A e4809-770-015-b motor
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The Okuma BL‑D50A is a 50 A brushless AC servo drive (part E4809‑770‑015‑B) used primarily on Z‑axis drives in CNC machines with OSP5000/5020 controls. Common failure modes include burned or failed MOSFETs, damaged gate drivers, and insulation breakdown between the power stages; overheating is often caused by inadequate cooling or overcurrent conditions. For first‑check diagnostics, verify that the 200 VAC three‑phase supply is within spec, confirm that all input signals (speed, torque, position) are present and clean, and inspect the drive board for visible burn marks or cracked components before reviewing any fault codes via the OSP interface.[oss-gpt-20b] |
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okuma machinery works BL-D50A e4809-770-015-b motorContact Us
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
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Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
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