OVERVIEW

Official designation: HITACHI WJ200-015SF (WJ200, AC Variable Frequency Drive)

The WJ200-015SF is a compact AC VFD designed for 1.5 kW motor control using 240V AC single-phase power. It features sensorless vector control and a built-in dynamic braking circuit for improved stop performance.

KEY SPECS SUMMARY

Power: Input 200-240V AC 1-phase; Output 1.5 kW

Interfaces / Ports: RS-485 Modbus, Control terminals

Indicators: 5-digit LED display and status lights

Operating Temp: -10 to 50 degrees C

Platform / Compatibility: Induction and permanent magnet motors

Limit: Output current 8 A (continuous)

Lifecycle: Active/Current series

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the main control method utilized by the Hitachi WJ200-015SF VFD?

A: The VFD primarily uses sensorless vector control for high starting torque and precise speed regulation.

Wiring & Installation:

Q: Does the WJ200-015SF require an external dynamic braking resistor?

A: The drive has a built-in dynamic braking circuit, but an external resistor may be needed for higher duty cycles.

Troubleshooting & Compatibility:

Q: Which communication protocol is integrated into the WJ200 series drives?

A: The drive features a built-in RS-485 port supporting the standard Modbus RTU protocol.

Replacement & Upgrades:

Q: Is the WJ200 series considered a current generation Hitachi AC drive platform?

A: Yes, the WJ200 is an active product series and is generally available.