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Product Description
The Mitsubishi FR-D720-3.7K, a 3.7 kW inverter drive from the FREQROL FR-D700 series, offers precise motor speed control up to 400 Hz in three-phase, 200 V applications. It accepts 200-240 VAC input at 50/60 Hz, delivers 16.5 A output, and features an IP20-rated enclosure suitable for clean industrial environments.
Is Your Device Showing These Signs?
The Mitsubishi FR-D720-3.7K frequently exhibits issues stemming from capacitor degradation, necessitating replacement to resolve over-voltage faults and maintain stable DC bus voltage. Parameter corruption within the EEPROM is a common cause of erratic motor control, requiring memory reprogramming. IGBT failures within the inverter section lead to over-current trips and complete drive failure, demanding module replacement. Cooling fan malfunctions cause overheating, triggering thermal overload protection and reduced drive lifespan; fan replacement is mandatory. Communication errors via Modbus RTU or other protocols arise from faulty RS485 transceivers, necessitating component level repair or communication module replacement.
Technical specifications
The Mitsubishi FR-D720-3.7K is a 3.7 kW inverter drive for three-phase, 200 V motor speed control up to 400 Hz. It accepts 200-240 VAC input, outputs 16.5 A, and has an IP20-rated enclosure.
Our Repair Process for the
FR-D720-3.7K
Our repair process for the Mitsubishi FR-D720-3.7K begins with a comprehensive diagnostic evaluation to confirm the reported issues. Capacitor degradation is addressed through complete capacitor bank replacement, ensuring stable DC bus voltage and preventing over-voltage faults. Parameter corruption is rectified by reprogramming the EEPROM with verified factory settings, restoring proper motor control. IGBT failures necessitate the replacement of the faulty IGBT module within the inverter section, eliminating over-current trips and drive failure. Cooling fan malfunctions are resolved by replacing the fan unit, preventing overheating and thermal overloads. Communication errors are corrected by repairing or replacing the RS485 transceiver or communication module, restoring proper Modbus RTU or other protocol functionality.
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