XD4000 55kW(HD)/75kW(ND) 415V Three-Phase Variable Frequency Drive | xD4000 Series VFD

XD4000-145P-4C2221 — 55kW(HD)/75kW(ND) Three-Phase Variable Frequency Drive (415V)

The Lauritz Knudsen xD4000 XD4000-145P-4C2221 is a 55kW(HD)/75kW(ND) 415V VFD — a heavy-industrial, general-purpose variable frequency drive built for crane/hoist duty, pump & PID process control, and general OEM/process automation applications. Every xD4000 drive ships with a built-in DC reactor and a built-in EMC filter (C2/C3 compliant), and is part of the flagship Lauritz Knudsen range. Explore the full Lauritz Knudsen variable frequency drives collection on Stockhai.

55kW(HD)/75kW(ND) 415V VFD – Control & Motor Compatibility

The XD4000-145P-4C2221 supports open-loop V/F control (5-point), slip compensation and Sensorless Vector Control (SVC), plus closed-loop vector control with encoder feedback for asynchronous motors, and native control laws for permanent magnet (PM) and reluctance motors. It delivers 150% overload (Heavy Duty) / 120% overload (Normal Duty) of rated current for 1 minute, an output frequency range of 0.1–599 Hz, and efficiency up to 98.6% at full load — giving reliable torque and speed control across induction, PM and reluctance motor types.

55kW(HD)/75kW(ND) 415V VFD – Crane & Hoisting Features

For crane, hoist and material-handling duty, the XD4000-145P-4C2221 provides dedicated brake control with brake feedback and separate brake-release current settings for hoisting and lowering, high-speed hoisting (adapting motor speed to load so an empty hook can travel faster), rope slack detection, external load measurement via a weight sensor, dynamic load / load-variation detection, open- and closed-loop torque control for winder applications, and positioning by limit switches or sensors — with a built-in braking transistor standard up to 160kW HD.

55kW(HD)/75kW(ND) 415V VFD – Pump, PID & Oil-Field Features

For pumping and process applications the drive includes a built-in PID controller with 4 preset references, sleep/wake-up and sleep-boost modes, and pre-PID predictive frequency. The ENA (Energy Adaptation) / Sucker-Rod function supports progressive cavity pumps (PCP) in oil & gas duty, allowing operation without a braking resistor while reducing mechanical stress and energy use, complemented by Backspin Control for PCP pumps. Feedback monitoring covers pipe break, fire-hydrant-opened, mechanical breakdown and water-leakage conditions, and pump cycle monitoring tracks start counts to avoid unwanted aging.

55kW(HD)/75kW(ND) 415V VFD – Master-Slave, MultiDriveLink & Connectivity

Using the onboard Ethernet port, one master XD4000-145P-4C2221 drive can coordinate up to 10 slave drives via MultiDriveLink for speed synchronisation or torque/load sharing in common-shaft applications such as dual-motor kilns, tandem or grab cranes, long belt conveyors and parallel-chain textile stenters, wired in daisy-chain, star or redundant-ring (RSTP) topology over standard Ethernet cabling. Communication is built-in via Modbus RTU / Modbus TCP / Ethernet IP (1 RJ45 port for Modbus plus 2 RJ45 ports for Modbus TCP/Ethernet IP), with optional PROFIBUS-DP, PROFINET, DeviceNet, CANopen, EtherCAT and POWERLINK cards, all managed from the advanced 8-line, IP65, 2-colour graphical LCD keypad.

55kW(HD)/75kW(ND) 415V VFD – Applications

The XD4000-145P-4C2221 is well suited to DRI kiln ID/bag-filter fans, tandem & grab cranes, wire drawing tower wheels, AS/RS systems, primary/secondary jaw crushers, large centrifugal pumps, paper mill fans & compressors, and sugar mill grooved roller feeders, and other applications across water & wastewater, chemical & petrochemical, food & beverage, building/HVAC, metal & mining, paper and OEM segments.

Technical Specifications

Why Buy From Stockhai?

Stockhai is an authorised online partner for Lauritz Knudsen Electrical & Automation, offering genuine XD4000-145P-4C2221 drives at the best price with fast, reliable delivery across India. Every unit is 100% authentic, backed by manufacturer warranty, and supported by our technical team for selection, sizing and after-sales assistance — so you can order with confidence and get your project moving without delay.

Frequently Asked Questions

Is the XD4000-145P-4C2221 capable of crane or hoist duty?
Yes. It includes brake control with brake feedback, rope slack detection, high-speed hoisting and dynamic load detection, making it suitable for crane, hoist and winder applications.

Can the XD4000-145P-4C2221 run pump/PID applications?
Yes. It has a built-in PID controller with sleep/wake-up modes, plus ENA (Energy Adaptation) and Backspin Control for progressive cavity (sucker-rod) pumps in oil & gas duty.

Does the XD4000-145P-4C2221 support master-slave torque sharing?
Yes, via MultiDriveLink over the onboard Ethernet port, allowing 1 master drive to synchronise speed or share torque/load with up to 10 slave drives.

Summary

The Lauritz Knudsen xD4000 XD4000-145P-4C2221 (55kW(HD)/75kW(ND) 415V VFD) is a flagship heavy-industrial VFD combining crane-grade hoisting control, pump/PID intelligence, Master-Slave MultiDriveLink connectivity and a rugged built-in DC reactor and EMC filter — all in a compact S5 frame. Buy it genuine, at the best price, only on Stockhai.