Delta VFD037CH23A-21 CH2000 5HP 230V Heavy Duty Drive

VFD037CH23A-21 CH2000 5HP Heavy-Duty AC Drive for Demanding Applications

Product Introduction

The Delta VFD037CH23A-21 is a member of the CH2000 series. This heavy-duty AC drive delivers 5HP (3.7kW) at 230V three-phase input. It provides 17A rated current with exceptional overload capability. The drive features sensorless vector control for superior torque response. Furthermore, it supports speed, torque, position, and synchronous control modes. This unit targets critical applications like cranes, extruders, and conveyors. Its compact IP20 enclosure suits industrial panel mounting. The drive operates reliably at 50°C ambient temperature.

Key Technical Specifications

Power Ratings
The VFD037CH23A-21 offers heavy-duty performance for demanding loads. It provides 17A continuous current with high overload capacity. The super heavy duty setting handles extreme transient conditions. This makes it suitable for shock loads and frequent starts. Consequently, you get reliable operation in the toughest applications.

Input and Output

• Input Voltage: 230V three-phase

• Output Power: 5HP (3.7kW)

• Output Current: 17A (rated)

• Frequency Range: 0 ~ 599Hz

Control Methods
This CH2000 drive supports multiple control modes. Sensorless vector control (SVC) delivers excellent low-speed torque. Additionally, the drive offers V/f control and closed-loop vector control with PG cards. The 4-quadrant torque control provides precise speed and torque regulation. This feature benefits hoisting and tension control applications.

High Performance and Overload Capability

Starting Torque
The VFD037CH23A-21 delivers high starting torque for heavy loads. It handles 150% torque at 0.5Hz for induction motors. For permanent magnet motors, it achieves full torque at 0.0Hz. Therefore, you get smooth starts even under full load conditions.

Overload Capacity
This drive offers exceptional overload capability. It provides 120% current for 60 seconds. Moreover, it supports 160% current for 10 seconds. The super heavy duty setting extends overload performance further. This rugged design suits applications with frequent torque spikes.

Noise Reduction Operation
The drive includes noise reduction features. It uses advanced PWM modulation to minimize audible noise. This creates a quieter working environment. Consequently, it suits installations in occupied spaces.

Flexible Application Modes

Speed Control
The VFD037CH23A-21 provides precise speed regulation. Sensorless vector control maintains ±0.5% speed accuracy. With a PG encoder, accuracy improves to ±0.01%. This suits applications requiring tight speed control like winding and unwinding.

Torque Control
The drive supports independent torque control mode. You can set a torque reference directly. The drive regulates output torque regardless of speed. This benefits tension control, press applications, and load testing.

Position Control
With a PG card and encoder feedback, the drive performs position control. It handles indexing, positioning, and synchronized motion. This makes it ideal for cut-to-length and material handling systems.

Synchronous Control
The built-in synchronous control function coordinates multiple drives. You can synchronize speed or torque between two motors. This is useful for master-slave configurations, paper machines, and dual-drive conveyors.

Built-in PLC Functions

The VFD037CH23A-21 includes a built-in PLC with ladder logic programming. You can create simple control sequences without an external PLC. This reduces system cost and simplifies troubleshooting. The PLC supports up to 2K steps of user program memory. You can program start/stop sequences, interlocking, and alarm handling directly in the drive.

Connectivity and I/O

Digital and Analog I/O
The drive offers comprehensive I/O capability. It includes multiple digital inputs for start/stop, multi-speed, and fault reset. Programmable digital outputs indicate running, fault, or frequency arrival. Analog inputs accept 0~10V or 4~20mA signals. These connect to pressure sensors, thermocouples, or remote potentiometers.

Communication Options
Standard communication includes RS-485 with Modbus RTU. Optional fieldbus modules expand connectivity:

• Profibus DP

• DeviceNet

• Modbus TCP

• Ethernet/IP

• CANopen

• Profinet

These modules plug into the option card slot. Consequently, the VFD037CH23A-21 integrates easily into factory automation networks.

Environmental Adaptability and Protection

Robust Design
The VFD037CH23A-21 operates at 50°C without derating. It includes a built-in DC reactor for harmonic suppression. Coated circuit boards protect against moisture and dust. This design meets critical environment requirements.

Enclosure and Cooling

• IP20 rating (finger-safe for indoor installations)

• Removable cooling fan for easy maintenance

• Hot-pluggable LCD keypad for parameter management

The removable fan simplifies cleaning and replacement. The hot-pluggable keypad allows parameter copying between drives. This speeds up commissioning for multi-drive systems.

Safety Features
The drive includes comprehensive protection functions. These cover over-current, over-voltage, under-voltage, and over-temperature. Short-circuit protection prevents damage from wiring faults. Ground fault detection ensures operator safety.

Installation and Mounting Guidance

Mechanical Dimensions

• Height: 9.84 inches (250 mm)

• Width: 5.12 inches (130 mm)

• Depth: 6.69 inches (170 mm)

• Weight: 6.4 lbs (2.9 kg)

The frame A design offers a compact footprint. Mount the drive vertically on a flat metal surface. Maintain 50mm clearance above and below for airflow. Allow 25mm side clearance for access.

Electrical Wiring
Follow the torque specifications for all power connections. Use shielded cables for analog and communication wiring. Separate control cables from power cables to reduce noise. Always connect the ground terminal properly.

Environmental Conditions

• Operating temperature: -10°C to +50°C

• Storage temperature: -40°C to +70°C

• Relative humidity: up to 95% non-condensing

• Altitude: up to 1000m without derating

Above 1000m, derate the current by 1% per 100m. The coated boards provide additional protection in humid or dusty environments.

Packaging List

• Delta VFD037CH23A-21 AC drive (1 unit)

• LCD digital keypad (1 unit, pre-installed)

• Quick-start installation guide (1 copy)

• Mounting screws and washers (1 set)

• Control terminal connector plugs (1 set)

Note: The full user manual, PLC programming guide, and communication manuals are available for download from Delta's official website.

Shipping and Delivery

All orders ship via FedEx, UPS, or DHL express services. Tracking numbers are provided within 24 hours. Typical delivery takes 3 to 7 business days. Expedited shipping options are available on request.

Frequently Asked Questions (FAQ)

1. What is the difference between CH2000 and CP2000 series drives?
CH2000 is designed for heavy-duty applications with higher overload capacity and multiple control modes (speed, torque, position). CP2000 targets pump and fan applications with HVAC-specific features.

2. Can the VFD037CH23A-21 control a permanent magnet motor?
Yes, this drive supports both induction motors (IM) and permanent magnet motors (IPM/SPM). It offers excellent low-speed torque down to 0.0Hz for PM motors.

3. What is the function of the built-in DC reactor in this drive?
The built-in DC reactor reduces harmonic distortion. It improves power factor and complies with IEEE 519 harmonic standards. This protects other equipment on the same power line.

4. How do I set up torque control mode on this drive?
Select torque control as the control mode in parameter settings. Connect an analog input for torque reference. Set the speed limit to prevent runaway. Refer to the user manual for detailed parameter configuration.

5. Does the drive support encoder feedback for closed-loop control?
Yes, with an optional PG card. The PG card accepts incremental encoder inputs. Closed-loop vector control provides ±0.01% speed accuracy. This suits high-precision applications like positioning and synchronized motion.