1. General Description

2. Basic Information

• Model: JANCD-MM14B (MM14B, Rev. B)

• Manufacturer: Yaskawa Electric (Japan)

• Type: Volatile CMOS RAM memory board

• Compatible Controllers: Motoman XRC, ERC series

• Weight: ~0.3–0.4 kg (0.66–0.88 lbs)

• Status: Discontinued / EOL

3. Specifications

• Memory: 128 KB CMOS RAM (Rev. B standard)

• Interface: Proprietary XRC/ERC backplane parallel bus

• Form Factor: 3U rack-mount PCB (160 × 100 mm approx.)

• Power: 5 VDC ±5% from backplane; ~300 mA typical

• Operating Temp: 0 °C to +40 °C (non-condensing)

• Storage Temp: −10 °C to +60 °C

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

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

4. Key Functions

• Provides volatile RAM for active robot programs and real-time motion data.

• Pairs with JANCD-MM13/MM13B (ROM board) for full system memory (ROM + RAM).

• Supports online editing, program caching, and I/O data buffering on XRC/ERC.

• Lower capacity than MM14C/MM14D; for smaller job sets in older systems.

5. Compatibility & Revisions

• MM14B = Rev. B: 128 KB, basic functionality, earliest MM14 revision.

• MM14C: 256 KB, component upgrade, Rev. C.

• MM14D: 512 KB, highest capacity, Rev. D.

• Not compatible with MRC, MX2, DX100/200, YRC1000.

6. Installation & Safety

1. Power OFF controller before insertion/removal (no hot-swap).

2. Use ESD protection (grounded wristband) to avoid static damage.

3. Align edge connector, insert into vacant 3U slot, tighten screws.

4. Avoid moisture, dust, oil, and vibration.

5. Do not disassemble; warranty void if opened.