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Mitsubishi VFD FR-D740-120-NA 7.5HP Variable Frequency Drive W/Modbus 380-480V/3PH

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Special Price $984.42 Regular Price $1,092.71
In stock
SKU
FR-D740-120-NA
The Mitsubishi VFD FR-D740-120-NA is a 7.5HP Variable Frequency Drive with Modbus communication and designed for 380-480V, 3 phase power. It controls the speed of an AC motor by changing the frequency and voltage supplied to achieve the best energy consumption. This VFD is primarily used in HVAC systems with fans and pumps for controlling motors exactly, reducing wear and extending equipment life time. Benefits are electric stress reduction through reduced starting current, improved process control and energy savings due to adjustable speed operation. As a result, it ensures efficient operation, improved system reliability, and lower operational costs in HVAC system uses.
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HVAC Controls & Electrical, Variable Frequency Drives
Manufacturer:
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Product Questions (2)
Customer Questions
What maintenance is required for the Mitsubishi FR-D740-120-NA Variable Frequency Drive?

Regularly inspect the for dust and debris. Ensure proper ventilation and clean cooling fans. Check wiring connections for tightness and monitor error logs. Follow safety procedures when powering down for maintenance.

What are common issues with the Mitsubishi FR-D740-120-NA Variable Frequency Drive?

  • Overheating due to poor ventilation.
  • Fault codes from voltage or current irregularities.
  • Communication errors with Modbus.
  • Inconsistent motor speed or torque.

Installation Steps

Step 1: Ensure power is off and disconnect all mains and control circuits.

Step 2: Mount the drive on a clean, ventilated surface following spacing guidelines.

Step 3: Connect the input power and motor output terminals correctly.

Step 4: Wire the Modbus communication interface as required for the system.

Step 5: Verify all connections are secure and free of loose wires.

Step 6: Restore power and configure drive parameters according to motor specifications.