Mitsubishi FR-A840-00126-2-60 FREQROL‑A800 3.7kW 400V 3‑Phase AC Drive with Conformal Coating

Mitsubishi Electric FREQROL‑A800 FR‑A840‑00126‑2‑60 is a high‑performance frequency inverter for three‑phase induction and permanent magnet motors. Rated output 3.7 kW (ND) at 380‑500 V, 3‑phase. Advanced real sensorless vector control and V/F control methods. Built‑in STO (Safe Torque Off) safety function, RS‑485 Modbus‑RTU communication, USB port, Ethernet port, CC‑Link IE Field Basic, and integrated PLC function (6K steps). Circuit board conformal coating (IEC60721‑3‑3 3C2/3S2) and CA terminal (0‑20 mA analog current output). IP20 enclosure, forced air cooling.

Applications:

• Pump and fan speed regulation

• Conveyor and material handling systems

• Packaging machinery and food processing

• Crane hoisting and elevator drive

• General heavy‑duty industrial machinery

Technical Specifications:

• Input voltage: 3‑phase 380‑500 V AC, 50/60 Hz (permissible fluctuation 323‑550 V)

• Output voltage: 3‑phase 380‑500 V AC (max.)

• Output frequency range: 0.2‑590 Hz

• Control methods: V/F control, Advanced magnetic flux vector control, Real sensorless vector control, Vector control, PM sensorless vector control

• Starting torque: 200% at 0.5 Hz (vector control)

• Brake transistor: built‑in (100% torque, 2% ED)

• Safety function: STO (Safe Torque Off) – SIL2/PLd

Advanced Specifications:

I/O & Interfaces

• Digital inputs: 12

• Digital outputs (transistor): 5

• Digital outputs (relay): 2

• Analog inputs: 3

• Analog outputs: 2 (one CA analog current output 0‑20 mA, one AM analog voltage output 0‑±10 V)

• Terminal block type: Spring clamp

• Built‑in display: 5‑digit LED (FR‑DU08, 12‑segment)

Communication & Functions

• Communication interfaces: RS‑485 (Modbus‑RTU, Mitsubishi inverter protocol), USB (mini‑B), Ethernet (RJ45), CC‑Link IE Field Basic, Modbus TCP, SLMP, iQSS

• Integrated PLC function: 6K steps program memory

• Functions: PID control, multi‑speed operation (16 speeds), auto‑tuning, stall prevention, regeneration avoidance, slip compensation, droop control, password protection

Protection & Environment

• Circuit board conformal coating: IEC60721‑3‑3 3C2/3S2 (‑60 suffix)

• EMC filter: built‑in (EN 61800‑3 2nd Environment Category C3)

• Protection rating: IP20

• Cooling method: Forced air cooling

• Operating temperature: –10 °C … +50 °C

• Storage temperature: –20 °C … +65 °C

• Weight: approx. 3.6 kg

• Dimensions (W × H × D): 220 mm × 90 mm × 87 mm (approx.)

Standards & Compliance:
CE, UL/cUL, RoHS, UKCA, KC, EAC compliant. Shipping approvals: ABS, BV, DNV GL, LR, NK. Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• FR‑DU08 – 5‑digit LED operation panel (included)

• FR‑A8AP – Vector control option board for encoder feedback

• FR‑HEL – DC reactor (optional, for harmonic suppression)

• FR‑ABR series – Braking resistors (external, for higher regenerative capacity)

• FR Configurator2 – Setup software for FR‑A800 series