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FR-D800 Series Inverters

Leading the way in energy innovation

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  • Feature
  • Specification
  • Standards
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Contents

FR-D800 controlling Mitsubishi Electric's PM motors slash energy consumption

Deploying energy-efficient motors lowers emissions and cuts operating costs

Using IE5 Ultra-Premium Efficiency motorsNEW

Compared to our IE1 class SF-JR motors, EM-A motors cut power consumption by approximately 9%. Even against our IE3 class SF-PR motors, an approximate 2% reduction is achieved. This directly translates to lower power consumption and reduced carbon emissions versus traditional motors, significantly impacting operating costs.

Comparison of power consumption (MWh/year) and CO2 emission (t/year)

Optimize efficiency with staged upgrades

High efficiency motor and VFD CombinationsVer.UP

Phased upgrades to IE3 induction or PM motors and associated inverters deliver maximum energy savings. This approach allows for step-by-step replacement of existing equipment, providing flexibility to upgrade inverters first, then motors, avoiding the need for a costly full system overhaul.

Inverter-based monitoring delivers real-time energy savings and CO2 emission data

Energy saving monitor and CO2 emission reduction monitorVer.UP

Inverter-integrated monitoring provides real-time and cumulative energy and CO2 emission data via operation panel, analog output, or RS-485, for operational insight (not billing).*1

  • *1: This function cannot be used as a meter to certify electricity billings.

Optimizing the output voltage

Load pattern selection

Optimal output characteristics (V/F characteristics) for application or load characteristics can be selected.

Energy savingFor variable-torque load (Pr.14 = "1")

For variable torque loads (like fans or pumps), a square V/F curve reduces output voltage proportionally to the square of the frequency. This optimizes power delivery by lowering the V/Hz ratio at reduced speeds, ensuring maximum energy savings.

For constant-torque load(Pr.14 = "0")

For constant torque loads (e.g., conveyors, extruders), a linear V/Hz curve is employed to maintain a constant voltage-to-frequency ratio. This ensures consistent magnetic flux within the motor, enabling it to deliver its rated torque efficiently across the entire speed range up to the base frequency.

Enhanced efficiency with variable frequency drives

Advanced optimum excitation control NEW

Advanced Optimum Excitation Control delivers high starting torque and rapid acceleration without the need for complex parameter adjustments. This ensures maximum motor efficiency across all operations, including significant energy savings during constant-speed running. This feature is available when Advanced Magnetic Flux Vector Control is employed.

Optimized VFD cooling, via fan-less or PWM fans designsNEW

VFDs 2 Hp or lower now feature fan-less designs, boosting reliability and eliminating fan maintenance concerns. For higher capacity units, PWM-controlled fans adjust RPM based on cooling demand, ensuring quiet operation and significant energy savings by only running at high speed during peak loads or overloads.

Boosting energy savings with regeneration options

Power regeneration function (optional)

During deceleration or when driven by an overhauling load (e.g., a descending elevator), the motor acts as a generator. Instead of dissipating this energy as heat through braking resistors, the regenerative option converts it back into electrical power and returns it to the main power supply or to other connected loads on a common DC bus, significantly enhancing system efficiency and cutting energy costs.