Mitsubishi FCA65-A MELDAS 65 CNC Control Unit
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Mitsubishi FCA65-A MELDAS 65 CNC Control Unit
The Mitsubishi FCA65-A is a legacy MELDAS M65 CNC control unit for NC processing, PLC operation, program/parameter memory and machine communication. It is a CNC controller, not a standalone general-purpose PLC.
Mitsubishi documentation identifies FCU6-MU021 as the M65 control-unit set compatible with FCA65-A and FCA65-P1 systems. Installed software, memory and machine-builder data must still match the original configuration.
FCA65-A Product Information
| Brand | Mitsubishi Electric |
| Model / MPN | FCA65-A |
| Series / Type | MELDAS M65 / CNC numerical control unit |
| Compatible Control Set | FCU6-MU021, listed for FCA65-A/FCA65-P1 systems |
| Documented Cards | HR114 main CPU, HR083 24V power supply and HR171 communication card |
| Basic M65 Memory | FCU6-HR412 maintenance memory cassette |
| Power | 24VDC ±5%, 1.5A; ripple ±5% P-P |
| Interfaces | DCIN, EMG, AUX1/AUX2, CF10/CF11 and ENC2 |
| Environment | 0–55°C operation; no corrosive gas, dust or oil mist |
| Mass | Approximately 1.1kg for the documented compatible control unit |
| Condition | New, refurbished, or used 90% new; subject to variant and stock |
| Handling | Normally 1–3 business days |
| Shipping / ETA | DHL, UPS, or FedEx worldwide; typically 2–6 business days |
| Warranty | 1 year for new/refurbished; 3 months for used 90% new |
| Service / Packing | 100% tested, test video and free technical support; anti-static reinforced carton |
MELDAS M65 Control Architecture
The FCA65-A-compatible design uses the HR114 main CPU card for CNC processing, PLC execution and external I/O control. Its 64-bit RISC architecture uses DRAM for system work, FROM for system/boot ROM and SRAM for programs and parameter backup. HR171 provides operation-board, I/O-link and communication interfaces. FCU6-MU021 is high-speed program-server compatible, depending on installed options.
Replacement and System Compatibility
FCA65-A is not automatically interchangeable with FCA65-P1, FCA65S, FCA64 or FCA66. Confirm the complete unit number, installed cards, FCU6-HR412 cassette, communication type, software, parameters, PLC ladder, connectors and machine configuration. FCU6-MU021 compatibility does not make an unconfigured unit plug-and-play.
Testing and Installation Notes
REACO CNC checks the label, housing, cards, connectors, power circuit, battery/memory status, system startup, communication and I/O functions as applicable. Back up parameters, programs and PLC data before removal. The supplied card and cassette configuration should match the photos or quotation.
Related resources: Mitsubishi CNC controls and Mitsubishi CNC control repair service.
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