Model Definition

• DF9201012: Base part number of MEW02 series servo expansion board

• C0: Hardware revision (Rev. C0/C02, latest stable version)

• JANCD-MEW02-1: Official Yaskawa model designation

• Applicable Systems: Motoman robot controllers, Yasnac i80/i80M/i80B CNC platforms

Core Functions

1. Servo Axis Expansion: Adds extra servo control channels, supporting up to 2 additional axes (analog/pulse train).

2. High‑speed Motion Interface: Dedicated 12‑bit analog output channels for precise servo control.

3. System Coordination: Works with main motion boards (e.g., FC250/FC260) to offload interpolation tasks.

4. Signal Conversion & Isolation: Converts CNC/robot controller commands to servo‑compatible signals; provides electrical isolation.

5. Diagnostics & Protection: LED status indicators; overvoltage/overcurrent/short‑circuit protection.

Technical Specifications

Electrical

• Supply Voltage: 5 V DC (system bus‑powered)

• Power Dissipation: ~12 W

• Output Channels: 2‑channel 12‑bit analog (±10 V) + pulse/direction

• Servo Compatibility: Yaskawa Σ series, Motoman servo amplifiers

Mechanical & Environmental

• Cooling: Natural convection (cabinet internal)

• Protection Class: IP20

• Operating Temperature: 0 °C to +40 °C

• Storage Temperature: -20 °C to +50 °C

• Relative Humidity: ≤80% RH (non‑condensing)

• Dimensions: 110 mm × 70 mm × 20 mm

• Weight: ~0.45 kg

• Installation: Standard industrial slot (robot/CNC controller)

Application Scenarios

• Motoman multi‑axis robot systems (welding, handling, assembly)

• Yasnac i80 CNC machines requiring more than 8 axes

• High‑speed 5‑axis/6‑axis machining centers

• CNC retrofitting projects for axis expansion

• Automated production lines with complex motion requirements

Usage & Maintenance

• Use ESD protection during installation to avoid static damage.

• Confirm 5 V DC power supply stability before power‑on.

• Check LED indicators (PWR, RUN, ALM) for normal operation.

• Clean board contacts and connectors every 6 months.

• Ensure cabinet ventilation for heat dissipation.

• Back up system parameters before replacement.