Description

Engineered for highly dynamic industrial motor control applications, the FR-A840-00083-2-60 variable frequency drive delivers exceptional torque precision and energy efficiency. This three-phase inverter drive operates within the premium FR-A800 series architecture, offering direct backwards compatibility with older FR-A700 range systems to simplify legacy machinery retrofits. Designed with integrated high-performance real sensorless vector control and closed-loop vector control, this module provides reliable speed and torque regulation across demanding speed ranges up to 400 Hz.

The unit features built-in positioning functionality, compatibility with high-speed SSCNet communications, and a dedicated USB Type-A port for quick parameter copying and diagnostics. System engineers can supply an external 24VDC to the control circuit, enabling safe parameter configuration and industrial network communication even when the main three-phase mains power is disconnected. Optimal excitation control ensures minimal energy loss during operation, improving system efficiency by up to an additional 12% compared to standard control methods.

Features

• Advanced control algorithms supporting closed-loop vector control and real sensorless vector control up to 400 Hz.
• Backwards compatibility with the legacy FR-A700 series for straightforward drops-in replacements.
• Built-in positioning capability suitable for precise motion control tasks.
• SSCNet compatibility for seamless integration with high-speed motion networks.
• Integrated USB (Type A) interface allowing rapid parameter upload, download, and backup.
• Auxiliary 24VDC control circuit input to facilitate parameter reading and network communication during main power isolation.
• Optimum excitation control technology, driving operational energy savings of up to 10% to 12%.
• Integrated brake chopper standard on models up to 55kW.

Applications

• Winding and tensioning control machinery
• Overhead crane and hoist lifting mechanisms
• Machine tool spindles and automated indexing tables
• Heavy-duty industrial conveyor and logistics handling lines

Technical Specifications

Installation Guidelines

• Mounting: Ensure vertical installation on a flat, non-flammable surface. Keep clear space around the heatsinks to allow adequate airflow for cooling.
• Wiring: Route the high-voltage motor output cables and low-voltage control/communication cables through separate conduits to prevent electromagnetic interference.
• Grounding: Always establish a secure, low-impedance protective ground (PE) connection using the dedicated grounding terminal on the inverter chassis.
• Control Power: Connect a separate 24VDC external supply to the auxiliary control terminals if offline parameter configuration and fieldbus active status are required.