Bonfiglioli ACTION 401/201 Inverter Engineering Integration Guide

Bonfiglioli ACTION 401/201 Series Inverter Engineering Deployment and System Integration Comprehensive Guide

In the field of industrial automation, variable frequency drives are not only the power source of motors, but also the core execution and feedback node of the entire control system. The ACTION 401/201 series frequency converter launched by Bonfiglioli provides a flexible and high-performance drive platform for system integrators and field engineers with its wide power coverage from 0.55 kW to 65 kW, modular hardware architecture, and rich built-in PLC and bus communication functions. This article will systematically explain the deployment points and technical details of this series of drivers in practical engineering from the dimensions of hardware selection, mechanical installation, electrical integration, software configuration, and common problem handling.

Key points for product positioning and selection

The ACTION series is divided into two sub series: ACT201 (230V level, single-phase/three-phase input) and ACT401 (400V level, three-phase input), which correspond to different application scenarios of power grid systems.

1. Power range and model selection

ACT201 covers 0.55 kW to 3.0 kW and is suitable for low-power applications such as small mechanical equipment, conveyors, pumps, etc. Supports 200-240V ± 10% single-phase or three-phase input, compatible with TN and IT power grids.

ACT401 covers from 0.55 kW to 65 kW (with a total of 6 chassis sizes ranging from 1 to 6) and is suitable for 360-480V ± 10% three-phase industrial power grids. The new Size 6 expands the high-power range of 37-65 kW, filling the gap of the previous generation product.

2. Selection and matching principles

This series is selected one-to-one according to the motor power, for example, a 7.5 kW motor directly corresponds to the ACT401-21 model (Size 3). This simplified model reduces the risk of selection errors.

Capacity needs to be confirmed based on application overload requirements: The standard provides the ability to withstand 150% overload for 60 seconds and 200% overload for 1 second, suitable for heavy-duty startup or impact load scenarios.

Mechanical installation and heat dissipation engineering

Correct installation is the foundation for ensuring the long-term reliable operation of the frequency converter. The ACTION series offers a variety of mechanical installation kits to adapt to different cabinet environments.

1. Standard installation and optional kits

The standard configuration includes MSTD installation kit (backplane fixation).

Optional MPSV through installation (suitable for high protection levels or enhanced heat dissipation, by threading the heat sink out of the cabinet to achieve heat dissipation).

Optional MNVIB anti vibration installation (used for installation on equipment that generates strong mechanical vibrations, such as presses and crushers).

Optional MDIN DIN rail installation (limited to Size 1 and Size 2, maximum 4 kW, for fast modular assembly).

2. Rating reduction and environmental adaptability

Temperature derating: When the ambient temperature exceeds 40 ℃, a derating of 2.5%/K is required, with a maximum allowable temperature of 55 ℃.

Altitude derating: When the installation altitude exceeds 1000 meters, the derating will be reduced by 5%/1000 meters, with a maximum of 4000 meters.

Cold Plate Option: For high protection level requirements (such as cabinets with IP54 or higher), the Cold Plate cooling version can be selected to export heat through the cabinet backplane, avoiding dust inhalation caused by internal fan cooling.

Switching frequency: All models do not require derating at a switching frequency of 8 kHz, which reduces motor noise while maintaining rated output capacity. This is an important engineering advantage of this series.

Electrical Connection and Power Terminal Design

1. Power supply and motor wiring

Plug in power terminals: 4 kW and below models use plug-in power terminals for quick replacement and maintenance, without the need to re crimp cables.

DC bus connection: All models provide DC link terminals, supporting multiple frequency converters to share DC bus power supply, achieving energy sharing and regenerative braking energy feedback, suitable for frequent start stop or lifting applications.

Built in braking transistor: The standard configuration includes a braking unit, which only requires an external braking resistor to achieve energy-efficient braking, reducing system costs and cabinet space.

2. Control terminal and signal isolation

Standard configuration includes 6 digital inputs, 1 multifunctional input (configurable as analog/pulse/digital), 1 digital output, 1 multifunctional output, and 1 relay output.

The control terminal also adopts a plug-in design, which facilitates the disconnection of the control circuit during debugging and maintenance without affecting the power wiring.

Multi functional input supports multiple signal types such as ± 10V, 0-20mA, 4-20mA, etc., and can flexibly connect various sensors and upper computer commands.

Expansion module selection and system integration

The maximum engineering flexibility of the ACTION series comes from its three slot modular architecture (slot A/B/C), which supports plug and play for I/O expansion, speed sensor interfaces, and fieldbus communication modules.