Product Overview

The FR-D720S-070SC-EC belongs to the renowned Mitsubishi Electric FR-D700-SC series, representing the pinnacle of ultra-compact drive technology for industrial motor control. This single-phase 200V class inverter delivers a robust 1.5kW output, specifically engineered to optimize the performance of induction motors in space-constrained environments. By implementing advanced General-Purpose Magnetic Flux Vector Control, the unit ensures high starting torque and superior speed stability even at low frequencies. This model integrates essential safety features, including Safe Torque Off (STO), providing a hardware-based solution to prevent accidental motor restarts. Its architecture balances high-frequency PWM control with thermal efficiency, making it an ideal choice for conveyors, pumps, and sophisticated packaging machinery where precision and reliability are non-negotiable.

Core Technical Advantages

Advanced Vector Control & Performance

This inverter utilizes General-Purpose Magnetic Flux Vector Control to achieve a starting torque of 150% at just 1Hz. This capability allows the drive to handle heavy load startups with ease, ensuring smooth acceleration for friction-heavy industrial applications.

Safety and Compliance Integration

The "SC" designation indicates the inclusion of Safe Torque Off (STO) functionality. This integrated safety circuit complies with EN ISO 13849-1 Cat 3 / PLd and IEC 61508 SIL2, eliminating the need for dual magnetic contactors and significantly reducing cabinet wiring complexity and costs.

Reliable Communication Architecture

Equipped with a standard RS-485 interface, the unit supports the Modbus-RTU protocol natively. This allows for seamless integration into existing PLC networks, enabling remote monitoring of drive parameters, frequency commands, and real-time fault diagnostics without additional communication modules.

Technical Specifications

Installation and Maintenance Guide

For optimal heat dissipation, mount the FR-D720S-070SC-EC vertically on a flat surface, ensuring at least 50mm of clearance above and below the unit. Use the built-in spring clamp terminals for control circuit wiring to guarantee vibration-resistant connections, which is particularly critical in high-vibration conveyor environments.

When configuring the Safe Torque Off (STO) function, remove the jumper between terminals S1, S2, and PC only when connecting to an external safety relay. For electrical protection, install a molded case circuit breaker (MCCB) or fuse on the input side to prevent drive damage from surge currents. Regularly inspect the internal cooling fan and clear any dust buildup from the heatsink fins to maintain the 10-year design life of the internal capacitors.

Engineering Advantages

Compact Footprint & Side-by-Side Mounting

The D700 series features a highly efficient thermal design that allows for side-by-side mounting. This reduces the total enclosure width required for multi-drive systems, lowering panel costs while maintaining safe operating temperatures.

Longevity and Diagnostics

Mitsubishi Electric utilizes high-grade components designed for a service life exceeding 10 years. The drive includes sophisticated aging diagnostics for the main circuit capacitors and the cooling fan, alerting operators before a component failure leads to unplanned downtime.

Seamless Modernization

As the FR-D700 series approaches its lifecycle transition, this model provides a stable, proven platform for existing systems while offering a clear migration path to the FR-E series for future-proofing high-demand automation lines.

Delivery and Logistics

Delivery Time: 3-5 days when payment finish.

Shipping Partners: BY DHL / FEDEX / UPS.

Stock Status: Original Factory Sealed Stock.

Technical FAQs

Q1: What is the benefit of the "EC" suffix in this model?

A1: The "EC" suffix identifies the European/Global version, which features a sink/source logic switch for digital inputs and utilizes spring clamp terminals for faster, more reliable wiring compared to traditional screw terminals.

Q2: Can I use this drive with a 3-phase 200V input?

A2: No, the FR-D720S-070SC-EC is specifically designed for single-phase 200-240V AC input. It converts this to 3-phase output for the motor. For 3-phase input requirements, the FR-D720 (without the "S") series should be used.

Q3: How does the Safe Torque Off (STO) function improve my system?

A3: STO provides a hardware-level safety shutoff that prevents the drive from generating power to the motor. It is a faster and more reliable safety method than using software-based stops or mechanical contactors, meeting international safety standards.

Q4: What is the maximum cable length supported for the motor connection?

A4: For this 1.5kW model, a motor cable length up to 50 meters is supported. However, if using long cables, ensure the carrier frequency is adjusted to prevent nuisance overcurrent trips caused by stray capacitance.