The Okuma E4809‑770‑015‑B is a servo amplifier control board designed for the BL‑D series AC servo drives, typically rated up to 50 A and featuring an SVC‑A architecture. Common failure points in this class of boards include burned or damaged MOSFETs/IGBTs, failed capacitors on the power input stage, and degraded gate driver ICs that can cause erratic motor behavior or drive shutdowns. Initial diagnostics should verify proper 48 V DC bus voltage, inspect the board for visible burn marks or swollen electrolytics, and check the status LEDs or error codes reported by the host controller. If the drive reports a fault code, cross‑reference it with Okuma’s service manual to isolate the specific module (e.g., over‑current, under‑voltage lockout, or communication loss).[oss-gpt-20b] |
Need your Okuma repaired or tested?
We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
📞 Call Now: 1 (336) 969-0110
Free Estimates • Industrial-grade testing • Nationwide Service
⚡ Call to Purchase AI Services — help us build the next Grace Blackwell GX10 node.
We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.
Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
Okuma BDU-30A Servo Drive
Okuma BDU-50-A Servo Drive
Okuma BDU-50-A Servo Drive
Okuma D11-A Drive
Okuma F II Absolute Encoder
Okuma BL-D 50 A Circuit Board
Okuma DC-51A DC Power Supply
Okuma BL-D 50 A Servo Drive
Okuma BL-D 50A Power Supply
Okuma DC-51A Power Supply
Okuma 20c12a24 Monitor
Okuma BL-D 50 A Servo Drive
Okuma VACA303J D6 Servo Drive
Okuma BLII-D50 Servo Drive
Okuma BL-D 50 A Servo Drive
Okuma DC-S1A DC Power Supply
Okuma BL-D 50 A Servo Drive
Okuma BDU-30A Servo Drive
Okuma BDU-75A Servo Drive
Okuma BDU-75A Servo Drive
Okuma BDU-50A Servo Drive
Okuma E4809-770-015-B Servo Amp
Okuma BL-D50A Circuit Board
Okuma MPS-10 Servo Drive
Okuma ER-JF-7200D Encoder
Okuma BLD-50 Bliid Drive
Okuma MPS-10 Servo Drive
Okuma BLII-DYD Bliid Drive
Okuma BDU-50-A Servo Drive
Okuma PPS60C E4809-747-005-E Board
Okuma MPS-10 Servo Drive
Okuma BLII-D30 Servo Drive Complete
Okuma LB15 E4809-770-015-B Servo Velocity Controller Board
Okuma BL50-A
Okuma LB15 E4809-770-015-B Board with drive unit
Okuma LB15 E4809-770-015-B Servo Velocity Controller Board
Okuma 1006-0613 drive
Okuma BL-D drive
Okuma BL-D drive
Okuma CD14JBS monitor
Okuma 1006-0613-82-05 drive
Okuma CD14JBS monitor
Okuma FA8470C driver
Okuma 1006-0615-13-05 drive
Okuma N4N5160 board
Okuma N4N5160 board
Okuma N4N5160 board
Okuma N4N5160 board
Okuma N4N5160 board
Okuma BDU-75A E4601-413-001 servo drive
Okuma 5000 LSC OSP5001.G monitorIndustrial 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
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.