Model Definition

• EN4: Yaskawa board series (Electronic Network, 4th generation)

• 00387: Unique part number (revision level not explicitly marked; factory-standard)

Technical Specifications

Electrical

• Operating Voltage: 24 VDC ±15% (logic) / 5 VDC (core circuits)

• Power Consumption: ~30 W

• Signal Level: 24 VDC industrial (NPN/PNP compatible)

• Isolation: 500 VAC between field I/O and internal logic

• Protection: Onboard overvoltage, overcurrent, short-circuit protection

Mechanical & Environmental

• Mounting: Slot-mounted in controller cabinet (standard Eurocard format)

• Protection Class: IP20

• Operating Temperature: 0 °C to +50 °C

• Storage Temperature: -25 °C to +70 °C

• Humidity: 10%–90% RH (non-condensing)

• Dimensions (W×H×D): ~80 mm × 220 mm × 30 mm

• Weight: ~0.7 kg

Interfaces

• System Bus: Parallel backplane bus (to CPU board)

• Digital Inputs: 24 isolated channels (24 VDC sink/source)

• Digital Outputs: 24 isolated transistor outputs (max 0.5 A/channel)

• Safety I/O: Emergency stop, door interlock, safety relay terminals

• Diagnostic: LED status indicators + test points

• Expansion: Reserved header for I/O cascading

Core Functions

• Signal Conditioning: Converts and filters sensor/switch signals for CPU

• I/O Expansion: Extends system I/O capacity for large workcells

• Safety Routing: Manages dual-channel E‑stop and safety gate interlocks

• Logic Buffering: Buffers and distributes control signals to servo drives

• Fault Monitoring: Detects and reports I/O and wiring faults via LEDs

Applications

• Yaskawa Motoman DX100 and legacy robot controllers

• Yaskawa Yasnac 2000G / 3000G CNC controllers (Mori Seiki, etc.)

• Automation systems requiring high‑density I/O and safety integration

• Spare‑part replacement and retrofitting for installed Yaskawa equipment

Compatibility

• Cross‑references: JANCD‑EN4-00387, DF7000067‑00387

• Compatible with: DX100, Yasnac 2000G/3000G controller families

• Replaces older revisions: EN4-00386, EN4-00385

Maintenance Notes

• Keep cabinet clean, dry, and dust‑free

• Verify connector seating and terminal torque (0.8–1.2 Nm)

• Use only 24 VDC power; avoid voltage spikes

• Replace with EN4-00387 or fully compatible Yaskawa original part