Product Description:

The 175Z4009 is an AC frequency converter manufactured by Danfoss for the VLT 5000 Frequency Converters series. Installed between the line supply and a three-phase induction motor, it modulates output frequency so automated equipment can match torque and speed to process demand. By providing variable-speed operation, the unit helps adjust flow, pressure, or positioning accuracy without mechanical throttling in pumps, fans, and material-handling systems.

A compact IP20 enclosure allows cabinet mounting in clean indoor locations while leaving the heat sinks exposed to airflow. The input section accepts a 200–240 V three-phase supply, making the drive suitable for low-voltage industrial networks common in light manufacturing. In applications that permit brief operation at 10% overtorque, the inverter can deliver 7.5 kW to the motor shaft; this rating supports appropriate fuse sizing and thermal management. Closed-loop routines run on a process control card, giving the controller direct access to analog feedback and PID functions for flow or tension regulation. Conducted emissions are limited by an integrated Class A1 and B filter, which reduces high-frequency noise so the installation can meet typical plant EMC requirements without external line chokes.

To maintain high component density, the power assemblies use uncoated circuit boards, so the drive should be kept away from corrosive atmospheres and excessive airborne contamination. A front-mounted keypad with a supplied display supports parameter entry, local start and stop commands, and real-time status messages, removing the need for a separate programming tool. The drive has no preinstalled fieldbus option, so hardwired I/O or a compatible bus module must be used when remote network control is required. For high-torque startups such as agitators, the drive provides a sustained output of 5.5 kW when the application demands 160% torque, supporting heavy-duty load profiles without excessive thermal stress.