Buy Mitsubishi FR-D720S-0.75K-CHT FR-D700 Inverter Spare Part

Executive Summary & Overview

The Mitsubishi Electric FR-D720S-0.75K-CHT variable frequency drive serves as a compact 0.75kW motor controller within the micro-drive category. Built on the reliable FR-D700 technology platform, this unit converts single-phase 200–240V AC line power into a controlled three-phase 200–240V output. Control system designers rely on the FR-D720S-0.75K-CHT drive for stable speed control, dynamic torque response, and low-speed torque delivery down to fractions of a hertz.

Engineers value the FR-D720S-0.75K-CHT micro drive for its high power density and reliable thermal management inside small control enclosures. The FR-D700 series design simplifies cabinet layout, reduces wiring time, and delivers continuous motor control across demanding light-industrial automation applications.

Engineering Specifications Matrix

• Model Designation: FR-D720S-0.75K-CHT
• Brand Manufacturer: Mitsubishi Electric
• Inverter Series: FR-D700 Series Variable Frequency Inverter
• Motor Power Rating: 0.75 kW (1.0 HP)
• Continuous Rated Output Current: 4.2 A
• Input Voltage & Phase: Single-phase 200V AC to 240V AC (50Hz / 60Hz)
• Output Voltage & Phase: Three-phase 200V AC to 240V AC
• Overload Capability: 150% for 60 seconds, 200% for 0.5 seconds (inverse-time)
• Power Capacity Rating: 2.3 kVA
• Degree of Protection: IP20 enclosed housing (JEM1030 compliant)
• Thermal Management: Natural convection self-cooling system
• Unit Net Weight: 1.1 kg
• Physical Footprint: Extremely compact frame for panel mounting

Global PLC Spare HUB's Insight

According to Global PLC Spare HUB's Insight, the FR-D720S-0.75K-CHT inverter excels in applications requiring single-phase input to three-phase motor conversion without oversized transformers. Field engineers frequently specify the FR-D700 series drive for small OEM machine builds where cabinet footprint remains restricted.

In automated packaging lines, replacing standard motor starters with the FR-D720S-0.75K-CHT drive eliminates mechanical shock on drive belts, extends gearbox operational life, and reduces overall line maintenance costs.

Target Equipment & Application Scenarios

• Material Handling Conveyors: Regulates belt acceleration to protect light parcel handling equipment.
• Centrifugal Pumps & Blowers: Optimizes flow control and saves energy in commercial fluid systems.
• Packaging & Bottling Lines: Controls small rotary indexing tables and feed screws with precision.
• Machine Tool Auxiliary Drives: Powers coolant pumps, chip conveyors, and automatic door actuators.
• Commercial HVAC Fans: Adjusts air volume output while maintaining low electrical noise levels.

Diagnostic Capabilities & Fault Analysis

The integrated digital dial display on the FR-D720S-0.75K-CHT inverter provides real-time operational feedback and diagnostic trip monitoring. When system abnormalities occur, the drive locks out and outputs clear diagnostic codes on the panel.

• E.OC1 / E.OC2 / E.OC3: Indicates overcurrent conditions during acceleration, constant speed, or deceleration phases.
• E.OV1 / E.OV3: Signals regenerative overvoltage caused by excessive load inertia or short deceleration ramps.
• E.THT / E.THM: Triggers electronic thermal relay protection to prevent motor or drive over-temperature damage.
• E.UVT: Identifies instantaneous main power supply voltage drop or input phase loss conditions.

Global Shipping & Warranty Terms

• Warranty Coverage: Includes a full 12-month factory defect replacement warranty.
• Dispatch Lead Time: Express order processing within 24 to 48 hours from order confirmation.
• Logistics Partners: Worldwide express delivery handled via FedEx, UPS, and DHL network services.

Frequently Asked Questions (FAQ)

Q1: Can the FR-D720S-0.75K-CHT inverter accept a three-phase power supply directly?

A1: The FR-D720S-0.75K-CHT drive is engineered specifically for single-phase 200-240V AC power input while generating a variable three-phase 200-240V output for three-phase induction motors.

Q2: What cable sizes and circuit protection devices suit this 0.75kW drive?

A2: Use 2.0 mm² copper power wiring with a 15A molded case circuit breaker (MCCB) or fast-acting fuse on the input side to protect the internal power stage.

Q3: How does the self-cooling design impact panel thermal calculations?

A3: Because the FR-D720S-0.75K-CHT unit relies on natural convection self-cooling without an internal fan, engineers must ensure adequate vertical clearance (at least 5cm above and below) inside the electrical enclosure.

Q4: What parameter adjustment prevents overvoltage trips during fast stopping cycles?

A4: Increase the deceleration time parameter (Pr. 8) or activate the regeneration avoidance function (Pr. 665) to stop high-inertia loads safely without tripping on internal DC bus overvoltage.

Q5: How do I select between the FR-D700 series and higher-tier inverter families?

A5: Choose the FR-D720S-0.75K-CHT drive for straightforward V/F speed control applications under 0.75kW. Select vector-control series like the FR-E700 or FR-A800 when closed-loop encoder feedback, position control, or internal braking transistors are required.

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