Variable Frequency Drive Control Solution – FUJI G11-CPCB SA529591-08 | Frenic G11 Series
When a variable frequency drive loses its control CPU board, the entire production line stops. Motors cannot receive speed commands, protection logic goes offline, and operators face unplanned downtime that costs thousands of dollars per hour. The FUJI G11-CPCB SA529591-08 is the OEM-specified Control CPU Board for the Frenic G11 series of AC drives — the exact component that restores full drive intelligence and gets your process running again.
Where This Product Is Used
The G11-CPCB SA529591-08 is deployed across a wide range of heavy-duty industrial environments where the Frenic G11 drive platform is the standard of choice:
- Steel & Metal Processing: Rolling mills, coil winding lines, and continuous casting machines rely on G11 drives for precise torque control. The CPU board manages all closed-loop feedback and speed regulation.
- Paper & Pulp Mills: Multi-section dryer drives and winder/unwinder systems use G11 drives in coordinated line-speed control. A failed CPU board disrupts synchronization across the entire paper machine.
- Water & Wastewater Treatment: Pump stations and blower systems running on Frenic G11 drives depend on this board for PID control, flow regulation, and remote SCADA communication.
- Mining & Quarrying: Conveyor drives, crusher motors, and ventilation fans in underground operations use G11 drives for their robustness. The CPU board handles fault logging and safety interlocks.
- Chemical & Petrochemical Plants: Agitator drives, compressor controls, and pump systems in hazardous-area installations require reliable CPU logic for safe operation.
- HVAC & Building Automation: Large central air-handling units and chiller pump systems use G11 drives for energy-efficient variable-speed operation.
Technical Specifications
| Attribute | Detail |
|---|---|
| Part Number | G11-CPCB SA529591-08 |
| Compatible Drive Series | FUJI Frenic G11 (FRN□□□G11□-□) |
| Board Function | Main Control CPU Board |
| Manufacturer | Fuji Electric Co., Ltd. |
| Board Type | PCB Assembly – Control Logic |
| Weight | Approx. 4.46 kg (packaged) |
| Condition | New / Refurbished (specify on inquiry) |
| Warranty | 12 months (Konmask standard) |
Note: All specifications are based on OEM documentation. Do not substitute with non-OEM boards — firmware compatibility is model-specific.
Why Engineers Specify This Model
- Exact OEM Firmware Match: The SA529591-08 revision carries the specific firmware version required by G11-series drives. Using a different revision can cause parameter incompatibility or protection faults.
- Integrated Communication Logic: This board manages RS-485 Modbus, optional fieldbus (PROFIBUS, DeviceNet) interface coordination, and keypad (TP-G1) communication — all on a single PCB.
- Advanced Motor Control Algorithms: Supports V/f control, dynamic torque vector control, and encoder-based closed-loop vector control — critical for high-performance applications.
- Comprehensive Protection Functions: Overcurrent, overvoltage, undervoltage, overtemperature, ground fault, and phase-loss detection are all managed by this CPU board.
- Direct Drop-In Replacement: Designed to mount directly into the G11 drive chassis with no mechanical modification required.
Complete System Bill of Materials
When servicing a Frenic G11 drive, the following companion parts are commonly replaced alongside the G11-CPCB SA529591-08:
- G11-PPCB (Power PCB / Gate Driver Board)
- G11-IPCB (Interface PCB)
- G11-DCCT (DC Current Sensor)
- TP-G1 (Remote Keypad / Operator Panel)
- G11 Series Cooling Fan Assembly
- G11 Series Capacitor Bank
Contact Konmask.com to source a complete G11 drive repair kit — we can supply multiple line items in a single order.
Compliance & Industry Standards
- Manufactured to IEC 61800-3 (Adjustable Speed Electrical Power Drive Systems)
- Compatible with CE and UL marked G11 drive assemblies
- Suitable for use in ISO 9001-certified maintenance programs
- RoHS-compliant PCB materials (OEM specification)
Quality Assurance & Sourcing
At Konmask.com, every control board goes through a structured verification process before shipment:
- Visual Inspection: PCB surface, solder joints, connectors, and component markings checked against OEM reference.
- Functional Bench Test: Where applicable, boards are powered and tested for communication response and logic output.
- Anti-Static Packaging: All PCBs are shipped in ESD-safe bags with foam cushioning inside double-wall cartons.
- Traceability: Each unit is logged with a serial/batch reference for post-sale support.
How to Source This Part
- Submit your inquiry via the Contact / RFQ form on this page.
- Provide your drive nameplate data (model number, kW rating, serial number) for compatibility confirmation.
- Receive a formal quotation with lead time and shipping options within 24 business hours.
- Confirm order — we accept T/T bank transfer, PayPal, and other B2B payment methods.
- Shipment via DHL / FedEx / UPS with full tracking provided.
Application-Specific FAQ
Q: Is the G11-CPCB SA529591-08 compatible with all G11 drive ratings?
A: The SA529591-08 revision is used across a range of G11 drive kW ratings, but compatibility depends on the specific drive model and production date. Always provide your full drive model number when inquiring.
Q: Can I use this board in a G9 or G7 series drive?
A: No. The G11-CPCB is designed exclusively for the Frenic G11 platform. G9 and G7 series use different CPU board architectures and are not interchangeable.
Q: Do I need to re-initialize parameters after replacing the CPU board?
A: Yes. After installing a new CPU board, a full parameter initialization and recommissioning procedure is required per the Frenic G11 service manual. Konmask can provide technical guidance upon request.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. For sourced units, typical lead time is 7–15 business days. Contact us for real-time availability.
Q: Do you offer a warranty?
A: Yes — all parts supplied by Konmask.com carry a 12-month warranty against manufacturing defects under normal operating conditions.
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