XD1000 7.5kW 415V Variable Speed Drive – xD1000 Series VFD by Lauritz Knudsen
The Lauritz Knudsen XD1000-22P8-4B2111 is a 415V AC Variable Frequency Drive rated 7.50kW (Heavy Duty) / 11.0kW (Normal Duty) — this 7.5kW variable speed drive is part of the xD1000 AC Drive series from Lauritz Knudsen Electrical and Automation. This model steps up to Frame S4 — a physically larger chassis than the S3-frame models below it — and is now the highest-power model in the xD1000 lineup available from Konica Automation. Full technical reference: lk-ea.com/cn/XD1000-22P8-4B2111.
Motor Control Modes
The XD1000-22P8-4B2111 supports multiple control algorithms to suit different load types: V/F Control (2 Point), Pump-optimized U2/F Control, Sensorless Vector Control (SVC), and Slip Compensation for improved speed accuracy under varying load — making it suitable for fans, pumps, conveyors, and general industrial motor control applications.
Built-in Braking Chopper
This model includes an integrated dynamic braking chopper as standard, enabling fast motor deceleration and controlled stopping without the need for an external braking unit — useful in applications requiring quick stops or frequent start/stop cycles.
Forced-Fan Cooling – Frame S4
As a Frame S4 unit, the drive uses forced-fan cooling (1 fan, minimum airflow 100 m³/h — double that of the smaller S3-frame models) to manage the higher heat dissipation at this power rating, maintaining reliable operation with acoustic noise kept to approximately 50 dBA.
Built-in Modbus RTU
Integrated Modbus RTU communication (RJ45 connector, 2-wire RS485, 4800–38400 bps) allows the drive to be connected directly into a PLC or SCADA-based automation network for remote monitoring, parameter configuration, and centralized control — without requiring an external communication module.
Applications
As a 7.5kW variable speed drive, it is well suited for HVAC fans and pumps, water supply systems, compressors, conveyor systems, mixers, and general-purpose industrial motor control where a higher-power 415V drive with robust overload capacity is required.
Technical Specifications
| Parameter | Heavy Duty (HD) | Normal Duty (ND) |
|---|---|---|
| Rated Output Power | 7.50 kW | 11.0 kW |
| Rated Output Current | 17 A | 22.8 A |
| Overload Capacity | 150% for 1 min | 110% for 1 min |
| Line Input Current (380V) | 26.6 A | 29.5 A |
| Line Input Current (460V) | 22.4 A | 24.8 A |
| Apparent Power (460V) | 17.8 kVA | 19.4 kVA |
| True Power Factor (with Line Choke, 460V) | 0.80 | 0.85 |
| Efficiency at Rated Load (460V) | 98.0% | 98.0% |
| Output Frequency Range | 0.5–400 Hz | |
| Control Method | V/F (2 Point), Pump U2/F, SVC, Slip Compensation | |
| Switching Frequency | 2–12 kHz adjustable (nominal 4 kHz) | |
| Braking Chopper | Built-in | |
| Cooling | Forced fan (1 fan), min. airflow 100 m³/h | |
| Acoustic Noise | ~50 dBA | |
| Ambient Temperature | -10°C to +55°C (no derating) | -10°C to +50°C (no derating) |
| Enclosure Rating | IP20 (without blanking plate) / IP4X (top, with vent cover) | |
| Net Weight | 3.7 kg | |
| Dimensions (H x W x D) | 232 mm x 150 mm x 171 mm | |
| Recommended Power Cable | 10 mm² (7 AWG) | |
| Circuit Breaker / Main Contactor | MOG-H1M 32A / MO 32 | |
| Standards | CE, RoHS, IEC 61800-3, IEC 61800-5-1, IEC 60721-3 | |
Note: Stepping up to Frame S4 brings a larger chassis (232mm x 150mm x 171mm vs. 184mm x 140mm x 151mm on the S3 models), nearly double the net weight (3.7kg vs. 1.8kg), and a much heavier 10mm² (7 AWG) power cable requirement compared to the 4mm² (12 AWG) used on the smaller S3-frame xD1000 models.
Why source it from Konica Automation?
Konica Automation is an authorised distributor for Lauritz Knudsen Electrical & Automation and supplies genuine drives with manufacturer specifications. Our engineers help you select and size the right drive, and support you through commissioning, spares and after-sales service across India. Browse the full Lauritz Knudsen range or contact us with your application details.
FAQ
Q: Can this drive be used for pump and fan applications?
A: Yes, the built-in Pump U2/F control mode is specifically designed for variable-torque pump and fan loads.
Q: Does it need an external braking resistor unit?
A: No external chopper unit is required — the braking chopper is built into the drive; an external braking resistor (minimum 28Ω) can be added for higher braking duty if needed.
Q: What communication protocol does it support?
A: Built-in Modbus RTU is standard for integration with PLC/SCADA systems.
Summary
The Lauritz Knudsen XD1000-22P8-4B2111 is a 7.50kW(HD)/11.0kW(ND) 415V VFD on Frame S4 with built-in braking chopper, forced-fan cooling, multiple control modes, and Modbus RTU communication — currently the highest power model in the xD1000 series from Konica Automation.
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