VFD037E43A Delta 460V 3-Phase Variable Frequency Drive

VFD037E43A Delta 460V 3-Phase Variable Frequency Drive

Product Introduction

The Delta VFD037E43A belongs to the well-established VFD-E series of AC micro drives. Specifically, this model supports a 5 HP (3.75 kW) motor capacity and operates on a 460V three-phase input. Meanwhile, it delivers a rated current of 8.5 Amps and achieves a maximum output frequency of 600 Hz.

Engineered for low-horsepower constant torque applications, this drive incorporates sensorless vector control technology. Consequently, it ensures excellent starting torque and precise speed regulation across a broad speed range. Furthermore, the unit features an integrated fan cooling system and an IP20 enclosure, making it suitable for panel mounting in controlled industrial settings.

Moreover, the VFD037E43A includes a built-in PLC function that allows users to write and execute simple Ladder Logic programs directly on the drive. In addition, its modular architecture supports various extension cards, offering great flexibility for system integration. Therefore, the compact Frame B design saves valuable panel space while delivering reliable motor control.

Technical Specifications

• Manufacturer : Delta Electronics

• Input Voltage Range : 380 to 480 VAC, 3-phase

• Nominal Input Voltage : 460 VAC

• Applicable Motor Output : 3.75 kW (5 HP)

• Rated Current (CT) : 8.5 Amps

• Maximum Frequency : 600 Hz

• Motor Control Modes : Sensorless Vector (Open Loop) and V/F control

• Braking Type : DC Injection and Dynamic Braking (transistor included)

• Cooling Method : Forced air (fan cooling)

• Enclosure Rating : IP20

• Frame Size : B

This drive supports both keypad and external control via remote potentiometer or PLC signals. However, the keypad is sold separately, but an LED status indicator comes standard for monitoring drive conditions. For instance, closed-loop feedback is not supported; nevertheless, the open-loop vector control delivers outstanding performance for most general-purpose applications.

Mechanical and Environmental Parameters

• Dimensions (H x W x D) : 6.85 x 3.94 x 5.35 inches (174 x 100 x 136 mm)

• Net Weight : 2.8 kg

• Gross Weight : 3.2 kg (packaged)

• Operating Temperature : -10°C to 50°C (derating required above 40°C)

• Storage Temperature : -20°C to 60°C

• Humidity : Below 90% RH (non-condensing)

• Altitude : Up to 1000 meters without derating

The Delta VFD037E43A features a lightweight and compact frame that simplifies handling and installation. Besides, its small footprint makes it ideal for machinery with limited mounting space. Meanwhile, this drive is designed for indoor use only, protected from direct moisture, oil mist, and corrosive gases.

Installation and Mounting Guide

Correct installation ensures the reliability and service life of the VFD037E43A. For best results, follow these recommended procedures:

1. Mounting Surface : Install vertically on a flat, non-flammable mounting plate. Use the four mounting holes provided for secure attachment.

2. Clearance : Maintain at least 50 mm clearance above and below the drive for proper airflow. Additionally, side clearance of 30 mm is also required for adequate ventilation.

3. Environmental Protection : Avoid high-temperature areas, direct sunlight, or locations with excessive vibration or dust. Otherwise, performance may degrade over time.

4. Wiring Practices : Use shielded cables for control and motor connections. Moreover, separate power input and motor output wiring to minimize electromagnetic interference.

5. Grounding : Securely connect the ground terminal to the system earth ground for safety and noise reduction.

Ensure the input power is disconnected before installation. Furthermore, always verify that the motor nameplate matches the drive specifications.

Packaging and Shipping Information

Your package includes the following items for the Delta VFD037E43A :

• 1 x Delta VFD037E43A AC drive unit

• 1 x Quick start guide (printed manual)

• 1 x Mounting screws set

• 1 x Dust cover (pre-installed)

Each unit is packed securely in a protective carton with anti-static materials. Finally, we ship worldwide via FedEx, UPS, or DHL for fast and trackable delivery.

Frequently Asked Questions (FAQ)

Q1: What motor sizes can the VFD037E43A control?
A1: The VFD037E43A is rated for 5 HP (3.75 kW) motors. Specifically, it is not suitable for larger motors beyond this capacity.

Q2: Does this drive come with a keypad for programming?
A2: No, the keypad is optional and sold separately. However, an LED status indicator is included for basic diagnostics.

Q3: What is the maximum output frequency available?
A3: This drive can output up to 600 Hz, making it suitable for high-speed spindle applications.

Q4: Is dynamic braking built into this model?
A4: Yes, the dynamic braking transistor is built-in. Therefore, you simply need to connect an external braking resistor for full braking performance.

Q5: Can I use this drive on a single-phase power supply?
A5: No, the VFD037E43A requires a three-phase 460V input. In fact, single-phase operation is not supported.