Product Description:

The 178B0732 is an AC frequency converter produced by Danfoss for the VLT 5000 Frequency Converters series. It converts fixed three-phase mains power into a variable-frequency output that regulates motor speed and load torque in pumps, fans, and material-handling equipment. The unit integrates gate-drive electronics, protection functions, and a control card inside a single chassis, allowing motor performance to be matched to process demands while reducing mechanical stress. Its internal product type is VLT 5000, consistent with the series name.

For installation, the drive accepts a nominal input from a 380–500 V three-phase supply, which aligns with common industrial distribution systems. Power capability is split across two overload classes. At 110% continuous torque, the converter delivers up to 30 kW, while the heavier 160% short-term torque mode is limited to 22 kW. These ratings support the selection of a suitable motor and duty cycle for the intended process. Signal integrity is supported by coated control boards, which have an insulating film that protects against humidity and airborne contaminants. To limit conducted and radiated emissions, the integrated filter provides Class A1 and B filtering for industrial environments.

Control functionality is organized around a process control card, which executes signal scaling, PID algorithms, and alarm handling without external modules. The cabinet uses standard hardware, so specialized heat sinks or mechanical adaptations are not required. The option bay has no built-in option, leaving space available for a compatible future extension. Human interaction is handled through the supplied display, which provides direct access to operating parameters and status information. The converter has no fieldbus option, but it can operate through discrete input and output signals or accept a compatible communication option. This arrangement allows the communication method to be selected according to the control system used in the application.