Mitsubishi FR-A840-5.5K-1 A800 Series 5.5kW VFD Inverter Crane Control

Description

The Mitsubishi FR-A840-5.5K-1 is a high-performance 5.5kW (7.5 HP) Variable Frequency Drive (VFD) from Mitsubishi Electric’s flagship A800 Series. Built to handle heavy-duty motor applications, this frequency inverter combines precise real-time vector control with exceptional torque output across the entire speed range.

Featuring Mitsubishi’s specialized crane control algorithms and original anti-sway technology, the FR-A840-5.5K-1 actively suppresses suspended object swinging without needing manual adjustments from the crane operator. For factories, engineering projects, and industrial automation facilities across Bangladesh, this VFD provides high energy efficiency, maximum operational safety, and minimum downtime.

Key Features

• Original Anti-Sway Control: Eliminates suspended load oscillation automatically during crane traverse, hoist, and stop operations.
• Real-time Sensorless Vector Control: Guarantees peak starting torque and precise velocity control under heavy dynamic loads.
• Built-in Safety Architecture: Features integrated Safe Torque Off (STO) functionality to meet stringent industrial safety standards.
• Integrated PLC Functions: Supports internal programmable sequence control, reducing external control system complexity.
• Advanced Communication Interfaces: USB, RS-485, and network options enable seamless configuration and real-time monitoring via Mitsubishi diagnostics software.

Technical Advantages

• High Efficiency: Superior semiconductor design reduces harmonic distortion and heat output, maximizing energy transformation.
• Durable Construction: Protective conformal PCB coating guards internal electronics against airborne dust, humidity, and chemical vapor.
• Safety Protection: Integrated safeguards protect against overcurrent, overvoltage, output short-circuits, phase loss, and thermal overload.
• Energy Saving: Dynamic energy-saving control optimizes motor excitation currents during light load conditions.
• Easy Maintenance: Detachable fan assemblies and diagnostic maintenance alarms enable quick servicing without extended production stoppage.

Applications

• Industrial & Crane Systems: Overhead traveling cranes, gantry cranes, tower cranes, hoists, and material transfer cars.
• Factory Automation: High-load conveyors, packaging lines, textile machinery, and heavy industrial processing equipment.
• Commercial & Facilities: Large HVAC ventilation fans, industrial blowers, and booster pump panels.
• Project Installation: Custom automation power panels engineered by local system integrators.

Why Choose This Product?

• Reliability: Engineered by Mitsubishi Electric for continuous 24/7 industrial duty under demanding thermal loads.
• Performance: Advanced crane algorithms optimize material movement, increasing throughput while preventing mechanical wear.
• Cost Effectiveness: Significantly reduces operational electricity expenses while extending overall machinery service life.
• After-Sales Value: Supported in Bangladesh by Loop Shop with reliable technical guidance, verified product sourcing, and parameter configuration support.

Technical Specification Table

Features List

✓ Proprietary anti-sway crane control technology

✓ High-torque sensorless vector control

✓ Built-in Safe Torque Off (STO) safety integration

✓ Conformal-coated PCBs for harsh industrial environments

✓ Low acoustic noise and optimized thermal management

Benefits For Customers

• Reduces Electricity Cost: Optimizes current draw to minimize factory utility expenses during varying motor loads.
• Improves Operational Reliability: Eliminates sudden mechanical shocks, protecting crane cables, gears, and motor drive shafts.
• Saves Maintenance Cost: Built-in self-diagnostics inform operators of potential motor or line faults before critical equipment failures occur.
• Suitable for Bangladesh Environment: Heavy-duty internal engineering withstands ambient humidity, high room temperatures, and power variations.

Installation & Maintenance Guide

Installation Requirements:

• Mount vertically inside an IP54-rated, well-ventilated electrical control panel to shield against ambient dust and oil mist.
• Retain minimum vertical and horizontal clearances surrounding the inverter housing for unrestricted cooling airflow.
• Ensure dedicated 3-phase earth grounding and use shielded power lines to minimize electromagnetic interference (EMI).

Maintenance Tips:

• Clean heat sink fins and cooling fans periodically using dry, low-pressure compressed air.
• Inspect electrical terminal connection screws at scheduled intervals to counteract vibration-induced loosening.
• Track fault diagnostic codes via the digital keypad panel to correct parameter irregularities early.

Safety Instructions:

• Always disconnect incoming 3-phase AC power lines and wait at least 10 minutes for internal DC bus capacitors to discharge fully before touching wiring terminals.
• Installation, commissioning, and parameter tuning must be performed by certified electrical engineers or automation technicians.

Frequently Asked Questions (FAQ)

Q: What is the price of Mitsubishi FR-A840-5.5K-1 5.5kW VFD in Bangladesh?

A: Pricing depends on import logistics and stock availability. Please check the current updated price directly on loopshop.com.bd or contact our sales department.

Q: Where can I buy original Mitsubishi FR-A840-5.5K-1 VFD in Bangladesh?

A: You can purchase genuine Mitsubishi Electric automation equipment online directly from Loop Shop Bangladesh at loopshop.com.bd.

Q: What warranty does this product have?

A: It carries a standard supplier/manufacturer warranty. Details are available on the Loop Shop warranty policy page during checkout.

Q: Is this VFD suitable for Bangladesh climate conditions?

A: Yes, the FR-A840 series features conformal PCB coatings designed to operate reliably in high ambient humidity and elevated local temperatures.

Q: How to install this product?

A: Mount vertically inside a protective electrical enclosure. Connect 3-phase input lines, motor lead outputs, and ground lines according to official Mitsubishi wiring schematics.

Q: Can this 5.5kW VFD drive applications other than cranes?

A: Yes. While optimized for crane and hoisting equipment, it works exceptionally well for industrial pumps, fans, extruders, and conveyor systems.

Q: What horsepower rating corresponds to this 5.5kW VFD?

A: A 5.5kW rating corresponds to a standard 7.5 HP 3-phase AC induction motor.

Q: How does Mitsubishi anti-sway control work?

A: The firmware calculates suspended load dynamics and automatically dampens object swinging during starting, stopping, and speed adjustments.

Q: Does Loop Shop supply VFDs across all districts in Bangladesh?

A: Yes, Loop Shop delivers industrial automation equipment to Dhaka, Chittagong, Gazipur, Narayanganj, Sylhet, and all districts nationwide.

Q: Can I get parameter configuration support from Loop Shop?

A: Yes, Loop Shop provides technical guidance and parameter setup assistance for industrial buyers in Bangladesh.