Product Description:

The 175Z7031 is a variable frequency drive manufactured by Danfoss for the VLT 6000 HVAC Drives series. Designed for building automation, the unit modulates the speed of three-phase induction motors that power fans, pumps, or air-handling equipment, allowing airflow and liquid flow to track real-time load demands. By integrating speed control into a compact enclosure, the drive reduces energy consumption and mechanical stress in ventilation and chiller circuits commonly found in commercial and industrial facilities.

The electrical input is rated for 380–460 VAC, allowing direct connection to compatible distribution systems without step-up transformers. Within this voltage range, the inverter can deliver a continuous mechanical output of 18.5 kW (25 HP) to the motor. The unit has a compact IP20 enclosure with finger-safe openings but no gasketed sealing, so it is intended for installation in a clean, protected electrical room or control cabinet. Internal electromagnetic compatibility suppression is provided by a Class A1 and Class B filter, which limits conducted emissions on industrial and residential power systems. The drive includes an operator interface in the form of an LCP (Local Control Panel), providing parameter access, status indicators, and manual start and stop controls.

The drive is designed for HVAC applications and includes preset acceleration ramps and PID control functions suited to fans, pumps, dampers, and valves. Its electronics use the standard unit configuration, without additional harmonic suppression chokes or reinforced insulated-gate bipolar transistor stages. For locations where condensation and airborne chemicals are minimal, the drive uses uncoated circuit boards. The application option slot and fieldbus port have no factory-installed communication options, allowing compatible serial or Ethernet adapters to be added when the control system requires expanded connectivity. This arrangement supports stand-alone motor control through the local panel while preserving the ability to connect the drive to a larger building automation network. The compact enclosure also helps conserve cabinet space in installations containing motor starters, protection devices, and other control equipment.