Hersteller: Mitsubishi Electric
Produkt-Nr.: FR-A840-00770-2-60
Herkunftsland:Vereinigte Staaten
Produkttyp: Variable Frequency Drives
Zahlung: T/T, Western Union
Gewicht: 28000g
Versandhafen: Xiamen
Garantie: 12 Monate
Speed and torque precision across heavy-duty industrial applications are driven by the Mitsubishi Electric FR-A840-00770-2-60 variable frequency drive. Operating on a 400V class three-phase supply, this high-performance inverter from the premier FR-A800 series delivers optimized motor control utilizing advanced vector regulation algorithms. The unit features standard 3C2 conformal circuit board coating to ensure exceptional reliability in harsh, corrosive environments, paired with an integrated EMC filter (-2 CA designation) to suppress electromagnetic interference.
| Specification Parameter | Value / Rating |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | FR-A840-00770-2-60 |
| Inverter Series | FR-A800 Series |
| Voltage Class | 400 V Class (3-Phase 380V to 500V AC, 50/60Hz) |
| SLD Rated Current (Super Light Duty) | 77 A |
| LD Rated Current (Light Duty) | 62 A |
| ND Rated Current (Normal Duty) | 57 A |
| Structure & Functionality | Standard Model |
| Circuit Board Coating | Conformal Coated (3C2), Non-Plated Conductor |
| Enclosure Protection Rating | IP00 (Open Type) |
| Cooling Method | Forced Air Cooling |
| Net Weight | 23.0 kg |
| Shipping Weight (Calculated) | 28.0 kg |
| Country of Origin | Japan |
The FR-A840-00770-2-60 serves as a direct engineering upgrade for the legacy FR-A740-00770 VFD units. Control parameters and macro programs can be migrated smoothly using Mitsubishi FR Configurator2 software. However, physical terminal block profiles and dimension mounting patterns differ slightly; when retrofitting older enclosures, verify clearance depths and terminal adapter requirements.
When utilizing this drive under heavy start-stop cycles (ND ratings), thermal accumulation in the internal transistor modules can accelerate. Always size the enclosure ventilation assuming continuous output dissipation at 40 degC ambient. If operations exceed 40 degC, linear current derating curves must be strictly programmed into the thermal protection parameters.
To ensure EMC directive compliance, ensure the internal EMC filter grounding jumper is fully engaged. Grounding should utilize a flat, braided copper ground strap directly bonded to the backplate. Standard round wire conductors can exhibit high impedance to high-frequency carrier-wave noise, leading to phantom faults on nearby low-voltage analog signal lines.
CRITICAL SAFETY WARNING
Risk of electric shock and stored energy hazard. Always de-energize the incoming three-phase supply lines before handling wiring connections. Wait at least 10 minutes post-power down for the DC-bus capacitors to completely discharge. Verify the DC bus voltage reads 0V using a calibrated digital multimeter at the terminal terminals before starting work.
Mount the inverter vertically to a rigid, non-flammable vertical backplate inside an industrial panel, ensuring minimum top and bottom clearances of 100mm for optimal convection airflow.
Connect the main three-phase AC power input lines to supply terminals R/L1, S/L2, and T/L3. Connect the three-phase motor leads to output terminals U, V, and W.
Route low-voltage control signals, analog speed references, and communications through shielded twisted-pair (STP) wiring channels separate from main AC and motor cabling.
Perform initial power-up. Navigate the PU keypad controller interface to input fundamental motor parameters, maximum operating frequency, acceleration/deceleration ramps, and designated overload trip values.
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| Country of origin |
Vereinigte Staaten
|
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