Product Description:

The FC-102P1K1T4E20H2XG is an AC variable frequency drive manufactured by Danfoss. The product converts fixed mains power into a variable-frequency output that allows building automation systems to adjust fan and pump motors directly. This speed control improves airflow or water circulation without relying on mechanical throttling. By integrating with BACnet- or Modbus-based controllers, the drive functions as a regulated actuator that supports precise temperature and pressure control in industrial facilities and large commercial buildings. Its control capabilities also allow motor output to respond to changing demand instead of continuously operating at full speed.

The power section accepts a nominal supply of 380–480 VAC, allowing installation on common low-voltage distribution systems. The drive uses three-phase power, enabling the inverter to deliver balanced torque to standard three-phase induction motors without phase conversion. Its IP20 chassis protection guards against accidental contact with internal components while allowing installation in a ventilated electrical enclosure. Conducted emissions are attenuated by the built-in RFI filter, which helps reduce radio-frequency interference in sensitive building environments. Parameters are configured through the detachable graphical local control panel, a backlit keypad that displays real-time speed, current, operating status, and alarm information. The removable panel also provides direct access to drive settings when communication with the building controller is unavailable.

The unit is supplied with no brake chopper, so regenerative energy produced during rapid deceleration must be managed elsewhere in the system. It supports normal cabinet mounting for A, B, and C frames, simplifying alignment with standard enclosure layouts and reducing sharp cable bends. Within the VLT HVAC Drive product group, the unit carries the internal code 102. This product group supports HVAC functions such as PID airflow control and automatic energy optimization. The cabinet arrangement provides access to power, motor, and control connections while preserving the ventilation space required around the chassis. Its network compatibility allows operating commands, feedback values, and alarm states to be exchanged with a central building automation controller.