As production lines grow more automated, the drives controlling them need to do more than simply run a motor at variable speed — they need to communicate with plant-wide control systems, handle heavier loads, and adapt as machinery requirements change. The Lenze i550 inverter is built for exactly this brief, extending the i500 platform’s compact design across a far wider power range than its smaller sibling, the i510.
This article covers the i550’s technical profile, where it fits within Lenze’s drive lineup, and how to source it correctly in Bangladesh.
Overview
The Lenze i550 is part of the same i500 inverter family as the i510, sharing its space-saving footprint and zero-clearance mounting. Where it differs is scale: the i550 covers motors from 0.25 kW up to 45 kW, with higher-power variants available for larger installations. This makes it suitable both for the small auxiliary drives the i510 typically handles and for substantially larger production machinery within a single, consistent platform.
Beyond raw power range, the i550 adds functional depth. It supports vector control with feedback (not just sensorless vector), an integrated brake chopper for dynamic braking, and Safe Torque Off (STO) as a built-in safety function — features aimed at applications where precision and safety compliance matter as much as raw motor control.
Technical Specifications of Lenze i550 Inverter
| Parameter | Specification |
|---|---|
| Motor power range | 0.25 kW – 45 kW (higher-power variants available) |
| Supply voltage | 1 AC 230V / 1-3 AC 230V / 3 AC 400V (model-dependent) |
| Output current | 1.7 A – 40 A+ (frame-dependent) |
| Output frequency | 0 – 599 Hz |
| Overload capability | 150% for 60 seconds; 200% for 3 seconds |
| Enclosure rating | IP20 |
| Braking | Integrated brake chopper; dynamic braking via external resistor |
| Communication | Modbus RTU standard; CANopen, EtherCAT, EtherNet/IP optional |
| Safety technology | Safe Torque Off (STO) |
| Efficiency class | IE2 (per EN 50598-2) |
| Approvals | CE, UL, CSA, EAC, RoHS2 |
Typical Applications of Lenze i550 inverter
The wider power band and added functionality make the Lenze i550 inverter the preferred choice where the i510 would be undersized or under-featured:
- Pumps, fans, and conveyors at higher power ratings than the i510 covers
- Winding, forming, and travelling drives requiring vector control with feedback
- Machinery needing built-in safety functions (STO) without external safety relays
- Systems requiring fieldbus integration beyond basic Modbus, such as EtherCAT or EtherNet/IP
For motors under 2.2 kW with simpler control needs, the i510 remains the more cost-effective option within the same platform. For heavier textile finishing machinery such as stenter and dyeing lines, Lenze’s 8200 vector series (E82EV/E84AV) is typically the better fit.
Selecting the Correct Model
Because the Lenze i550 inverter spans a wide power and configuration range, confirming the following before ordering ensures the correct part is supplied:
- Motor nameplate power (kW) and duty cycle (standard or light-duty rating)
- Supply voltage and phase configuration at the installation site
- Fieldbus requirement — Modbus RTU, CANopen, EtherCAT, or EtherNet/IP
- Safety function requirement, if STO is needed for the application
- Braking requirement, including whether an external brake resistor is needed
Sourcing the Lenze i550 in Bangladesh
Prime Engineering supplies genuine Lenze i550 inverter across standard and higher-power configurations, alongside the i510, the 8200 vector series, SEW-EURODRIVE, E+L, Fong’s, and Setex components. Our technical team confirms part compatibility before dispatch to ensure the correct unit reaches your site the first time.
Contact:
📞 01712-987013
📧 md@primeengineeringbd.org
📍 H# 42, R#20, Sec#11, Uttara, Dhaka