1. Basic Information

• Model: JANCD-MM14D REV.C (also labeled REV.C-01)

• Manufacturer: Yaskawa Electric (Japan)

• Type: Volatile CMOS RAM memory board

• Applicable Controllers: Motoman XRC, ERC series

• Form Factor: 3U standard industrial board

• Weight: Approx. 0.29 kg (0.64 lbs)

• Status: Discontinued / EOL

2. Technical Specifications

• Memory Size: 512 KB CMOS RAM

• Bus Interface: Dedicated parallel bus for XRC/ERC backplane

• Power: 5 VDC ±5% (backplane-powered), typical 450 mA

• Operating Temp: 0 °C to +40 °C (no condensation)

• Storage Temp: −10 °C to +60 °C

• Humidity: 5%–80% RH (non-condensing)

• LED Indicator: 1× red LED (power/access activity)

3. Key Functions

• Provides high-speed, large-capacity volatile memory for complex jobs, multi-task programs, and motion data.

• Pairs with MM13/MM13B ROM (firmware storage) for full controller memory system.

• Supports online editing, large program caching, high-speed I/O buffering.

• Ideal for complex lines and multi-station robots (512KB, same as standard MM14D).

4. Revision & Compatibility

• Revisions:

  • MM14B: 128 KB

  • MM14C: 256 KB

  • MM14D REV.C: 512 KB (this board)

• Compatibility: Fully interchangeable on XRC/ERC; not compatible with MRC, MX2, DX series or non-Yaskawa equipment.

5. Installation & Safety

• Power off the controller completely before installation/removal; no hot swapping.

• Wear a grounded anti-static wristband to prevent ESD damage.

• Align connector, insert into 3U slot, and tighten screws for vibration resistance.

• Keep away from moisture, dust, oil, and impact; do not disassemble.