Engineered to deliver high-performance motor control in demanding industrial environments, the Mitsubishi Electric FR-A740-1.5K-CHT variable frequency drive operates as a robust 3-phase speed and torque controller. Incorporating advanced vector control algorithms, this drive ensures exceptional dynamic response and steady-state speed accuracy for induction motors. The FR-A740-1.5K-CHT is built to withstand rigorous operating conditions, featuring integrated safety functions, a built-in programming terminal, and regional optimization parameters that streamline integration within standard automation systems.
| Parameter | Value / Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | FR-A740-1.5K-CHT |
| Inverter Series | FR-A700 Series |
| Applicable Motor Capacity | 1.5 kW |
| Rated Output Current | 4.0 A |
| Rated Output Voltage | 3-phase, 380 to 480 V AC |
| Input Voltage Class | Three-phase 400V class |
| Permissible AC Voltage Fluctuation | 325 to 528 V AC (50Hz / 60Hz) |
| Overload Capacity | 150% for 60 seconds, 200% for 3 seconds (at 50 degC) |
| Enclosure Rating | IP20 (Open Type) |
| Cooling System | Forced Air Cooling |
| Control Circuit Terminal Screws | M3 x 35 mm |
| Shipping Weight (Calculated) | 5.0 kg |
| Package Dimensions (Calculated) | 270 x 190 x 180 mm |
| Terminal Marker | Function Description |
|---|---|
| R/L1, S/L2, T/L3 | Main 3-phase AC power input |
| U, V, W | 3-phase AC motor output connections |
| P/+, PR | Brake resistor external connection terminals |
| STF, STR | Forward and Reverse start signal inputs |
| SD | Common terminal for contact input signals |
| 10, 2, 5 | Analog input terminals for voltage speed setting |
The "CHT" designation identifies models specifically optimized for Asian market profiles. It offers full physical and functional interchangeability with standard EU/US versions like the FR-A740-1.5K-NA. When migrating from older FR-A540 series systems, ensure parameter adaptations are executed to align with the higher resolution of the FR-A740 control loop.
In low-speed operations under heavy loads (less than 20 Hz), standard self-cooled motors cannot dissipate heat efficiently. For continuous low-speed operations, configure thermal motor protection parameter Pr. 9 for a constant-torque motor or deploy an auxiliary blower. Keep enclosure internal temperatures below 50 Celsius to prevent premature thermal derating of the internal DC bus capacitor banks.
To eliminate stray capacitive leakage currents in installations with cable runs exceeding 30 meters, reduce the carrier frequency using parameter Pr. 72. Ground the inverter separately using a dedicated grounding line with a resistance of 10 ohms or less, and run signal wires separate from the main power lines by at least 10 cm to prevent electrical noise coupling.
Mount the inverter vertically against a non-combustible steel panel to allow optimal convection airflow over the rear heatsinks.
Connect ground lines to the PE terminal before establishing main line power routing to U, V, and W output stages.
Torque all power terminal block connections securely to the specified OEM torque limits to mitigate high-resistance thermal junctions.
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Manufacturer: Mitsubishi Electric
Product No.: FR-A740-1.5K-CHT
Country of origin:United States
Product Type: Variable Frequency Drives
Payment: T/T, Western Union
Weight: 5000g
Dimensions: 270 x 190 x 180 mm
Shipping port: Xiamen
Warranty: 12 months
Engineered to deliver high-performance motor control in demanding industrial environments, the Mitsubishi Electric FR-A740-1.5K-CHT variable frequency drive operates as a robust 3-phase speed and torque controller. Incorporating advanced vector control algorithms, this drive ensures exceptional dynamic response and steady-state speed accuracy for induction motors. The FR-A740-1.5K-CHT is built to withstand rigorous operating conditions, featuring integrated safety functions, a built-in programming terminal, and regional optimization parameters that streamline integration within standard automation systems.
| Parameter | Value / Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | FR-A740-1.5K-CHT |
| Inverter Series | FR-A700 Series |
| Applicable Motor Capacity | 1.5 kW |
| Rated Output Current | 4.0 A |
| Rated Output Voltage | 3-phase, 380 to 480 V AC |
| Input Voltage Class | Three-phase 400V class |
| Permissible AC Voltage Fluctuation | 325 to 528 V AC (50Hz / 60Hz) |
| Overload Capacity | 150% for 60 seconds, 200% for 3 seconds (at 50 degC) |
| Enclosure Rating | IP20 (Open Type) |
| Cooling System | Forced Air Cooling |
| Control Circuit Terminal Screws | M3 x 35 mm |
| Shipping Weight (Calculated) | 5.0 kg |
| Package Dimensions (Calculated) | 270 x 190 x 180 mm |
| Terminal Marker | Function Description |
|---|---|
| R/L1, S/L2, T/L3 | Main 3-phase AC power input |
| U, V, W | 3-phase AC motor output connections |
| P/+, PR | Brake resistor external connection terminals |
| STF, STR | Forward and Reverse start signal inputs |
| SD | Common terminal for contact input signals |
| 10, 2, 5 | Analog input terminals for voltage speed setting |
The "CHT" designation identifies models specifically optimized for Asian market profiles. It offers full physical and functional interchangeability with standard EU/US versions like the FR-A740-1.5K-NA. When migrating from older FR-A540 series systems, ensure parameter adaptations are executed to align with the higher resolution of the FR-A740 control loop.
In low-speed operations under heavy loads (less than 20 Hz), standard self-cooled motors cannot dissipate heat efficiently. For continuous low-speed operations, configure thermal motor protection parameter Pr. 9 for a constant-torque motor or deploy an auxiliary blower. Keep enclosure internal temperatures below 50 Celsius to prevent premature thermal derating of the internal DC bus capacitor banks.
To eliminate stray capacitive leakage currents in installations with cable runs exceeding 30 meters, reduce the carrier frequency using parameter Pr. 72. Ground the inverter separately using a dedicated grounding line with a resistance of 10 ohms or less, and run signal wires separate from the main power lines by at least 10 cm to prevent electrical noise coupling.
Mount the inverter vertically against a non-combustible steel panel to allow optimal convection airflow over the rear heatsinks.
Connect ground lines to the PE terminal before establishing main line power routing to U, V, and W output stages.
Torque all power terminal block connections securely to the specified OEM torque limits to mitigate high-resistance thermal junctions.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
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