Delivering precise speed and torque regulation for heavy-duty industrial machinery, the Mitsubishi Electric FR-A840-22K-1 is a high-performance three-phase 400V class variable frequency drive designed for motors up to 22 kW. As part of the flagship FR-A800 series, this inverter features an integrated FM pulse train output terminal (Terminal FM) for exact system monitoring and coordination. Equipped with advanced Real Sensorless Vector Control and built-in PLC capabilities, this drive optimizes motor performance in demanding dynamics across complex automation networks.
| Manufacturer | Mitsubishi Electric |
| Model Reference | FR-A840-22K-1 |
| Applicable Motor Capacity | 22 kW |
| Output Capacity | 34 kVA |
| Rated Output Current | 44 A |
| Output Rated Voltage | Three-phase 380 to 500 V |
| Input Voltage Class | Three-phase 400 V class (380 to 500 V, 50/60 Hz) |
| Monitoring Terminals | Terminal FM (Pulse train output) |
| Serial Communications | RS-422, RS-485, RS-232 (RJ45 connection) |
| Safety Certification | CE, UL, cUL, RoHS compliant |
| Product Dimensions | 400 mm (H) x 250 mm (W) x 190 mm (D) |
| Shipping Weight | 16.0 kg |
| Terminal Group | Function & Terminal Assignment |
|---|---|
| Power Input | R/L1, S/L2, T/L3: Connects to three-phase commercial AC power supply. |
| Inverter Output | U, V, W: Direct connection to three-phase induction or PM motors. |
| Analog Control | Terminal 10 (DC 10V supply), Terminal 2 (0-5V / 0-10V input), Terminal 4 (4-20mA input), Terminal 5 (Analog common). |
| Pulse Output | Terminal FM: High-speed transistor pulse train output mapped to operational variables. |
| Digital Inputs | STF (Forward rotation start), STR (Reverse rotation start), SD (Contact input common). |
The FR-A840-22K-1 directly succeeds the older FR-A740-22K series. It shares similar mounting footprint spacing; however, check clearance depth due to the cooling fan assembly design. If migrating parameters using FR Configurator2 software, note that Parameter 54 (FM terminal function selection) must be carefully calibrated as the pulse train output characteristic curve may require scaling adjustments to match legacy analog panel meters.
When running this drive in low-speed, high-torque configurations (such as continuous extrusion or winding), motor overheating is possible due to reduced native fan cooling. Under these conditions, specify an inverter-duty motor with independent force-cooling and configure Parameter 9 (Electronic thermal O/L) to match the external cooling profile. Additionally, if the system triggers E.OV3 (Overvoltage during deceleration) faults during cycling, ensure a dynamic braking resistor is installed and Parameter 30 (Regenerative function selection) is enabled.
To avoid electromagnetic interference with low-voltage sensor cables, ensure the motor cables are shielded and correctly grounded via a 360-degree high-frequency ground clamp at the cabinet entry plate. If establishing multi-drop RS-485 control via the integrated RJ45 ports, toggle the termination resistor slide switch (located behind the main control panel) to the "100 ohm" position only on the final physical node of the network bus.
Isolate all primary three-phase electrical input feeds before attempting installation or terminal wiring. Internal DC bus capacitors contain lethal residual charge. Wait at least 10 minutes after disconnecting incoming mains power and verify the voltage across terminals P/+ and N/- is under 45 VDC using a calibrated multimeter before initiating maintenance operations.
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Manufacturer: Mitsubishi Electric
Product No.: FR-A840-22K-1
Country of origin:United States
Product Type: Variable Frequency Drives
Payment: T/T, Western Union
Weight: 16000g
Shipping port: Xiamen
Warranty: 12 months
Delivering precise speed and torque regulation for heavy-duty industrial machinery, the Mitsubishi Electric FR-A840-22K-1 is a high-performance three-phase 400V class variable frequency drive designed for motors up to 22 kW. As part of the flagship FR-A800 series, this inverter features an integrated FM pulse train output terminal (Terminal FM) for exact system monitoring and coordination. Equipped with advanced Real Sensorless Vector Control and built-in PLC capabilities, this drive optimizes motor performance in demanding dynamics across complex automation networks.
| Manufacturer | Mitsubishi Electric |
| Model Reference | FR-A840-22K-1 |
| Applicable Motor Capacity | 22 kW |
| Output Capacity | 34 kVA |
| Rated Output Current | 44 A |
| Output Rated Voltage | Three-phase 380 to 500 V |
| Input Voltage Class | Three-phase 400 V class (380 to 500 V, 50/60 Hz) |
| Monitoring Terminals | Terminal FM (Pulse train output) |
| Serial Communications | RS-422, RS-485, RS-232 (RJ45 connection) |
| Safety Certification | CE, UL, cUL, RoHS compliant |
| Product Dimensions | 400 mm (H) x 250 mm (W) x 190 mm (D) |
| Shipping Weight | 16.0 kg |
| Terminal Group | Function & Terminal Assignment |
|---|---|
| Power Input | R/L1, S/L2, T/L3: Connects to three-phase commercial AC power supply. |
| Inverter Output | U, V, W: Direct connection to three-phase induction or PM motors. |
| Analog Control | Terminal 10 (DC 10V supply), Terminal 2 (0-5V / 0-10V input), Terminal 4 (4-20mA input), Terminal 5 (Analog common). |
| Pulse Output | Terminal FM: High-speed transistor pulse train output mapped to operational variables. |
| Digital Inputs | STF (Forward rotation start), STR (Reverse rotation start), SD (Contact input common). |
The FR-A840-22K-1 directly succeeds the older FR-A740-22K series. It shares similar mounting footprint spacing; however, check clearance depth due to the cooling fan assembly design. If migrating parameters using FR Configurator2 software, note that Parameter 54 (FM terminal function selection) must be carefully calibrated as the pulse train output characteristic curve may require scaling adjustments to match legacy analog panel meters.
When running this drive in low-speed, high-torque configurations (such as continuous extrusion or winding), motor overheating is possible due to reduced native fan cooling. Under these conditions, specify an inverter-duty motor with independent force-cooling and configure Parameter 9 (Electronic thermal O/L) to match the external cooling profile. Additionally, if the system triggers E.OV3 (Overvoltage during deceleration) faults during cycling, ensure a dynamic braking resistor is installed and Parameter 30 (Regenerative function selection) is enabled.
To avoid electromagnetic interference with low-voltage sensor cables, ensure the motor cables are shielded and correctly grounded via a 360-degree high-frequency ground clamp at the cabinet entry plate. If establishing multi-drop RS-485 control via the integrated RJ45 ports, toggle the termination resistor slide switch (located behind the main control panel) to the "100 ohm" position only on the final physical node of the network bus.
Isolate all primary three-phase electrical input feeds before attempting installation or terminal wiring. Internal DC bus capacitors contain lethal residual charge. Wait at least 10 minutes after disconnecting incoming mains power and verify the voltage across terminals P/+ and N/- is under 45 VDC using a calibrated multimeter before initiating maintenance operations.
Global Express Shipping
Returns & Warranty
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| Country of origin |
United States
|
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