Product Description
The Mitsubishi FR-D720S-0.4K is a compact (1.36 kg), single-phase 220V inverter drive with a 0.4 kW power rating, offering variable speed and frequency control (0.2-400 Hz) for diverse low-power applications. Operating at 50/60 Hz and featuring IP20 protection for controlled environments, it supports Modbus RTU communication for seamless integration with automation systems.
Is Your Device Showing These Signs?
The Mitsubishi FR-D720S-0.4K commonly experiences issues such as nuisance tripping caused by incorrect parameter settings or ground faults. Overcurrent faults are frequently traced to excessive load demands or shorted motor windings. Communication errors often stem from wiring problems with the RS-485 Modbus RTU interface or incorrect network configurations. Inadequate cooling leads to overheating and thermal overload faults, necessitating improved ventilation or heatsink maintenance. Power supply failures within the inverter module itself are also a recurring problem, requiring component-level repair or full unit replacement.
Technical specifications
The Mitsubishi FR-D720S-0.4K is a compact, single-phase 220V, 0.4 kW inverter drive providing variable speed and frequency control (0.2-400 Hz) for low-power applications. It operates at 50/60 Hz, has IP20 protection, and supports Modbus RTU communication.
Our Repair Process for the
FR-D720S-0.4K
Our repair process for the Mitsubishi FR-D720S-0.4K begins with a thorough diagnostic evaluation to pinpoint the root cause of the failure, addressing common issues such as nuisance tripping, overcurrent faults, communication errors, thermal overloads, and power supply failures. Parameter settings are verified and corrected, and ground faults are isolated and eliminated. Excessive load demands are assessed and reduced, and shorted motor windings are repaired or the motor is replaced. Wiring issues with the RS-485 Modbus RTU interface are resolved, and network configurations are validated. Ventilation is improved, and heatsink maintenance is performed to prevent overheating. Power supply failures are addressed through component-level repair or full unit replacement. The unit undergoes rigorous testing to ensure proper functionality before it is returned.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY