Mitsubishi FR-CV-H30K Regenerative Converter

Mitsubishi FR-CV-H30K Regenerative Converter for FR-CV Automation

The Mitsubishi FR-CV-H30K is a 30kW regenerative converter unit engineered for high-demand industrial automation environments where energy recovery, drive efficiency, and production continuity are mission-critical. As part of Mitsubishi Electric’s FR-CV series, this unit is designed to work in tandem with FR-A800 and FR-F800 series variable frequency drives, enabling bidirectional power flow that captures regenerative braking energy and feeds it back to the DC bus or the AC supply grid — dramatically reducing net operating load across motor-driven production lines.

In facilities running continuous conveyor systems, hoisting equipment, centrifuges, or high-inertia press lines, deceleration events generate substantial braking energy that conventional resistor-based braking units simply dissipate as heat. The FR-CV-H30K eliminates this waste by converting that energy into usable power, improving overall system power factor and reducing peak demand charges on the facility’s electrical infrastructure.

Product Specification Table

System Compatibility and Application

The FR-CV-H30K does not operate in isolation — its full operational-efficiency potential is realized when integrated into a coherent automation architecture. In a typical high-efficiency drive system, the converter sits at the front end of a shared DC bus configuration, where multiple FR-A800 series inverter drives draw and return power dynamically. When one axis decelerates, the regenerated energy is immediately available to an accelerating axis on the same bus, reducing the total power drawn from the grid at any given moment.

For precise motor torque and speed control, the FR-CV-H30K pairs naturally with Mitsubishi MR-J4 series servo amplifiers and MR-J4W multi-axis servo drives, which handle high-response positioning tasks while the regenerative converter manages bulk energy flow. On the control side, a Mitsubishi MELSEC iQ-R series PLC — such as the R04CPU or R08CPU — coordinates drive commands, monitors operating load data, and executes operational-efficiency logic sequences based on production schedules and load profiles.

Real-time power monitoring is handled through Mitsubishi ME96NSR or ME110SSR power monitoring units, which measure active power, reactive power, and harmonic distortion at the panel level. These meters feed data back to the MELSEC iQ-R controller via CC-Link IE Field Network, enabling closed-loop maintenance planning where the PLC can dynamically adjust drive output frequency, torque limits, and regenerative thresholds based on live consumption data.

For facilities using GOT2000 series HMI terminals — such as the GT2710-VTBA — operators gain a real-time dashboard of energy flow, drive status, fault history, and production throughput. This visibility is essential for identifying inefficient operating windows and scheduling predictive maintenance before unplanned downtime occurs. The FR-CV-H30K’s built-in fault detection and diagnostic output signals integrate directly with the MELSEC I/O modules, such as the QX40 or RX40C7 input modules, ensuring that any converter anomaly triggers an immediate PLC response without operator intervention.

In distributed automation architectures, the FR-D700 series compact inverters handle auxiliary motor loads — cooling fans, pumps, and feeders — while the FR-CV-H30K manages the primary high-power regenerative axis. This layered approach ensures that maintenance planning is applied across the full power spectrum of the production line, not just the main drive.

Maintenance and Replacement Notes

Consider a stamping and forming line running three 30kW servo press axes in a continuous cycle. Without regenerative capability, each deceleration phase dumps braking energy into resistor banks, generating heat that must be removed by additional HVAC load — compounding the unplanned downtime. With the FR-CV-H30K installed, that braking energy is recovered and redistributed within the DC bus, reducing the facility’s peak demand by an estimated 15–25% depending on duty cycle and inertia characteristics.

In hoisting and crane applications, the regenerative converter captures the potential energy of descending loads — a scenario where conventional drives simply burn off energy as heat. The FR-CV-H30K converts this into grid-quality power, measurably reducing energy cost per lift cycle. Over a three-shift operation running 250 days per year, the cumulative savings can offset the unit’s acquisition cost within 12 to 18 months.

For HVAC-driven industrial facilities, the FR-F800 series drives paired with the FR-CV-H30K manage large fan and pump loads with variable torque profiles. During low-demand periods, the system reduces motor speed via frequency control, and during deceleration, the converter recovers energy rather than wasting it. This combination — variable speed control plus regenerative recovery — delivers the highest possible energy efficiency for continuous-duty rotating equipment.

Predictive maintenance is further supported by the FR-CV-H30K’s internal diagnostics, which log operating hours, thermal stress cycles, and fault events. When integrated with the MELSEC iQ-R platform and a SCADA or MES system, maintenance teams receive early warnings of capacitor degradation, cooling fan wear, or abnormal harmonic levels — allowing scheduled intervention rather than reactive repair. This reduces mean time to repair (MTTR) and improves overall equipment effectiveness (OEE) across the production line.

Every FR-CV-H30K unit supplied by ZYPLC undergoes full functional testing prior to shipment, including load simulation, regenerative energy flow verification, and communication protocol handshake testing. Units are shipped with a 12-month warranty covering manufacturing defects and operational failures under normal industrial use conditions. Stock is maintained for immediate dispatch, with global shipping available to support urgent replacement and commissioning timelines.

Product Sourcing FAQ

Q1: How much energy can the FR-CV-H30K realistically save in a production environment?
Actual savings depend on the application’s duty cycle, load inertia, and deceleration frequency. In high-inertia applications such as hoisting, press lines, and centrifuges, energy recovery rates of Actual operating results depend on the installed system, load profile, and commissioning parameters. The unit’s ≥98% regenerative efficiency ensures minimal conversion loss during energy recovery.

Q2: Is the FR-CV-H30K compatible with existing Mitsubishi FR-A800 or FR-F800 installations?
Yes. The FR-CV-H30K is designed for direct integration with the FR-A800 and FR-F800 series inverter drives via a shared DC bus connection. It is also compatible with FR-E800 series drives in appropriate configurations. Existing installations can be retrofitted without replacing the inverter units, making it a cost-effective upgrade path for maintenance planning.

Q3: What is the recommended replacement or upgrade path if the existing braking resistor unit is being decommissioned?
The FR-CV-H30K is the direct functional replacement for resistor-based braking units in 30kW drive systems. The installation requires a shared DC bus configuration and appropriate AC line reactor sizing. ZYPLC’s technical team can advise on compatible line reactors, fusing, and panel layout requirements to ensure a compliant and efficient installation.

Q4: What does the 12-month warranty cover, and what is the testing process before shipment?
The 12-month warranty covers all manufacturing defects and component failures under normal operating conditions. Prior to shipment, each FR-CV-H30K unit undergoes a full functional test including power-on verification, regenerative energy flow simulation, fault output signal testing, and communication protocol validation. A test report is available upon request. Warranty claims are processed directly through ZYPLC with replacement or repair turnaround prioritized to minimize production downtime.

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