Key Identifiers

• Part Number: DF8203830‑C0 (Rev. C0)

• Standard Model: JANCD‑MM14D / JANCD‑MM13B

• Manufacturer: Yaskawa Electric (Japan)

• Type: System Memory PCB

• Status: Obsolete (only new surplus, refurbished, or used available)

Specifications

Electrical

• Power: +5 V DC (from backplane)

• Memory Type: DRAM/ROM for system firmware & user programs

• Data Bus: 16‑bit parallel

Mechanical & Environmental

• Mounting: Slot‑mount in controller rack

• Operating Temp: 0 °C to +55 °C

• Cooling: Natural convection

• Weight: ~0.5 kg

Core Functions

• System Storage: Holds CNC/robot OS, motion programs, and user parameters

• Data Retention: Preserves critical configuration during power‑off

• CPU Communication: Exchanges data with main CPU board via backplane

• Firmware Execution: Supports boot‑up and runtime system operations

Compatibility (J300/J500 & XRC)

• CPU: JANCD‑CP11 (DF8203078‑B0/D0)

• I/O Backplane: JANCD‑1003E (DF8203498‑C0)

• Control Board: JANCD‑CG31‑1 (DF8203626‑C0)

• Servo Amplifier: JANCD‑SV03B (DF8203661‑B0)

• Aux I/O: JANCD‑(DF8203751‑A0)

Applications

• Motoman XRC robots (UP6, HP20, etc.)

• Yasnac J300/J500 CNC machine tools

• Legacy automation lines (spare replacement)

Maintenance & Replacement

• Handle with ESD protection to avoid static damage

• Common issues: Data corruption, boot failures, or communication errors

• Replace only with exact part DF8203830‑C0 (JANCD‑MM14D/MM13B Rev. C0)

• Backup all parameters before removal to prevent data loss