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Product Description
The Mitsubishi FRA221E55KUL, a 75 HP FREQROL FR-A2 series variable frequency drive, operates on 230V three-phase power, delivering up to 215 A output current for efficient motor control in demanding applications. It supports constant and variable torque functions with a 15 kHz switching frequency and 2.5 kHz carrier frequency, tolerating 150% overload for 60 seconds. Designed for -10C to 50C environments, it uses forced air cooling, achieves 98% efficiency, and features a 24 V control voltage. Weighing 21.5 kg, its IP00 rating necessitates indoor use or enclosure for protection.
Is Your Device Showing These Signs?
The Mitsubishi FRA221E55KUL frequently experiences failures related to the electrolytic capacitors on the main control board, leading to over-voltage faults and drive trips. IGBT failures within the inverter section are common, resulting in short circuits and blown fuses. Parameter corruption in the EEPROM necessitates reprogramming for proper motor control. Cooling fan malfunctions cause overheating and premature component degradation. Communication errors on the RS485 Modbus network require troubleshooting of wiring and configuration settings.
Technical specifications
The Mitsubishi FRA221E55KUL is a 75 HP, 230V three-phase VFD with 215 A output, suitable for constant/variable torque applications. It features 15 kHz switching, 2.5 kHz carrier frequency, 150% overload tolerance (60s), -10C to 50C operating range, forced air cooling, 98% efficiency, 24 V control voltage, weighs 21.5 kg, and has an IP00 rating.
Our Repair Process for the
FRA221E55KUL
Our repair process for the Mitsubishi FRA221E55KUL begins with a comprehensive evaluation to confirm the reported fault and identify all failed components. We replace all electrolytic capacitors on the main control board to address over-voltage faults and prevent future failures. All IGBTs within the inverter section are inspected and replaced as a set if any failure is detected, ensuring balanced performance and preventing short circuits. The EEPROM is reprogrammed with the correct parameters to restore proper motor control functionality. The cooling fan is inspected and replaced if malfunctioning to prevent overheating. Finally, the RS485 Modbus communication network is thoroughly tested, and wiring/configuration settings are corrected to eliminate communication errors.
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