Mitsubishi Electric FR-A840-00620-2-60 FR-A800 Series Inverter

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Produsen: Mitsubishi Electric
Nomor Produk: FR-A840-00620-2-60
Negara asal:Amerika Serikat
Jenis Produk: Variable Frequency Drives
Pembayaran: T/T, Western Union
Berat: 16000g
Dimensi: 400 mm x 250 mm x 190 mm
Pelabuhan pengiriman: Xiamen
Garansi: 12 bulan

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Description

Engineered for high-performance motor control in demanding industrial environments, the Mitsubishi Electric FR-A840-00620-2-60 variable frequency drive delivers exceptional vector control accuracy within the FR-A800 Series architecture. This three-phase inverter is optimized for constant torque applications, providing reliable speed and torque regulation for heavy-duty machinery. With its integrated 6K-step PLC and advanced safety functionalities, the drive simplifies system architecture by eliminating the need for external controllers in localized automation loops.

Features

Real Sensorless Vector (RSV) Control: Achieves high-precision speed and torque control up to 400 Hz without requiring a dedicated encoder feedback loop.
Integrated Safety Architecture: Built-in compliance with SIL2 and PLd safety standards ensures safe torque-off (STO) functionality directly at the drive level.
Embedded Automation Logic: Built-in Mitsubishi L-Series PLC functionality allows for customized control programming up to 6,000 steps.
Energy Optimization: Optimum Excitation Control technology continuously tunes the motor flux to minimize losses, yielding up to an additional 12% energy savings over standard V/f control.
Diagnostic Maintenance: Internal thermal sensors and component life diagnostics track the degradation of main circuit capacitors, cooling fans, and inrush currents.

Applications

Winding and Tensioning Systems: Direct tension control and dancer feedback loops for paper, film, and wire lines.
Cranes and Hoists: Smooth brake sequence control and high-torque generation at zero speed for lifting mechanisms.
Machine Tool Spindles: High-speed orientation and rapid acceleration/deceleration performance under variable loads.
Heavy Conveyors: Master-slave torque sharing configurations for multi-drive bulk material handling systems.

Technical Specifications Table

Parameter	Specification Value
Manufacturer	Mitsubishi Electric
Model Number	FR-A840-00620-2-60
Series	FR-A800
Input Voltage Rating	3-Phase 380 to 500V AC (50Hz / 60Hz)
Output Capacity (ND / Heavy Duty)	22 kW
Rated Output Current (ND)	44 A
Control Modes	V/F, Advanced Magnetic Flux Vector, Real Sensorless Vector, Closed-Loop Vector
IP Protection Rating	IP20 (Open Type)
Cooling Method	Forced Air Cooling
Brake Chopper	Built-in (requires external resistor for high duty cycles)
Shipping Weight (Calculated)	16.0 kg
Physical Dimensions (H x W x D)	400 mm x 250 mm x 190 mm

Connections and Interfaces

Terminal Designation	Function / Assignment
R/L1, S/L2, T/L3	Three-phase AC power input connections
U, V, W	Three-phase AC output connections to motor
P/+, PR	External braking resistor connection terminals
P/+, N/-	Direct DC bus connection link for common-bus sharing
S1, S2, SC	Dual-channel Safety stop input terminals (STO)

Empirical Engineering Insights

Alternative Models & Compatibility

The FR-A840-00620-2-60 is fully backwards compatible with the legacy FR-A740-00620 series parameters. By utilizing the FR-Configurator 2 software suite, users can migrate parameters without manual re-entry. Note, however, that physical footprint and terminal block locations differ slightly; ensure mounting panels accommodate the depth variance of 190 mm.

Application Pitfalls & Engineering Notes

When deploying this drive in constant-torque configurations at low frequencies (below 6 Hz), standard self-cooled motors will experience high heat generation due to reduced fan speed. In these scenarios, a motor with an independent cooling fan (forced ventilation) is required. Ensure the drive enclosure maintains a 100 mm top and bottom clearance for unrestricted heat sink airflow.

Commissioning & Wiring Tips

For reliable RS-485 or SSCNet communication, control wiring must use twisted-pair shielded cables separate from the power cables. Keep the control wiring separated from the main circuit wiring by at least 10 cm to prevent high-frequency electromagnetic interference. Connect the shield braid directly to the ground plate rather than using a pigtail connection.

Installation Guidelines

CRITICAL WARNING

Hazardous voltages remain present in the internal DC bus capacitors even after mains power is disconnected. Wait a minimum of 10 minutes after complete de-energization, and verify with a multimeter that the DC bus voltage (terminals P/+ to N/-) has discharged below 50VDC before initiating physical contact with terminal wiring.

Mount the inverter vertically on a flat, non-flammable vertical wall using M6 size mounting bolts. Avoid tilted installations to ensure optimal thermal chimney-effect dissipation.

Connect the protective earth (PE) ground wire to the designated ground terminal before routing primary three-phase lines to the R/L1, S/L2, and T/L3 terminals.

Ensure the terminal cover is securely locked back into place before switching on the primary input breaker to perform initial parameters verification.

Key Features:

#FR-A800 Inverters #Variable Frequency Drives

Can the FR-A840-00620-2-60 run a PM motor instead of an induction motor?

Yes. This drive supports sensorless vector control of permanent magnet (PM) motors in addition to standard induction motors, enabling high-performance operation on modern high-efficiency PM machines.

How long must I wait for the DC bus to discharge after turning off power?

You must wait at least 10 minutes and verify that the voltage between terminals P/+ and N/- is below 50VDC with a voltmeter before executing any service work.

Does this unit require an external 24VDC supply for the control card?

An external 24VDC supply is optional. It can be connected to terminals +24 and SD to power the control circuit and safety circuits while the main power supply is switched off, enabling diagnostics and communication.

What is the built-in PLC program step capacity for this model?

The integrated Mitsubishi L-Series PLC engine accommodates programs up to 6,000 steps, which can be managed directly via the FR-Configurator 2 software.

Pengiriman Ekspres Global

Pengiriman Standar: 4-6 Hari Kerja melalui DHL, FedEx, dan UPS.
Pengiriman Ekspres: Pengiriman hari yang sama untuk pesanan dalam stok yang dilakukan sebelum pukul 2:00 PM (GMT+8).
Cakupan Seluruh Dunia: Melayani lebih dari 150 negara, termasuk pengiriman cepat ke Arab Saudi dan UAE.

Pengembalian & Garansi

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TECHNICAL SPECIFICATIONS

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Mitsubishi Electric FR-A840-00620-2-60 FR-A800 Series Inverter