Overview
The SL 2 Series Frequency Converter is a versatile solution designed for speed and torque control of three-phase motors in mid-power industrial applications. Engineered with advanced VFD technology and robust construction, this converter offers a balance of precision, efficiency, and durability, ideal for pumps, compressors, and conveyor systems requiring reliable operation.
Features
Balanced Performance:
Power range: 2.2-75kW, supporting both scalar control (V/f) and advanced flux vector control (for motors ≥4kW), achieving torque accuracy ±10% without encoder.
Wide frequency range (0-200Hz), with torque boost (150% at 0Hz) for heavy starting loads like compressors and extruders.
Energy & Space Optimization:
High-efficiency IGBT modules (98.5% power conversion) and compact heat sink design, reducing energy loss by 15% and panel space by 25%.
ECO mode automatically adjusts voltage/frequency for low-load conditions, saving up to 30% energy in fans and pumps.
Robust Protection:
IP55-rated enclosure (NEMA 3R) with sealed terminals, resisting dust, water jets, and oil mist in harsh factory environments.
Advanced protection: short-circuit (4x rated current), overvoltage (±15%), and motor thermal protection (PTC thermistor input).
Flexible Integration:
Supports MODBUS RTU, CANopen, and Profibus DP, integrating with PLCs (Allen-Bradley, Schneider) and SCADA systems.
Dual-loop PID control for pressure/temperature regulation, ideal for closed-loop systems like water treatment and HVAC.
Application
Ideal for mid-power industrial systems, the SL 2 Series is used in:
Manufacturing Plants: Controls conveyor belts and mixing tanks, with quick response to load changes (≤100ms) in food and beverage production.
Construction Machinery: Drives hydraulic pumps in concrete mixers and cranes, with shock resistance (50G, 11ms) for mobile applications.
HVAC&R Systems: Regulates chiller compressors in commercial buildings, maintaining optimal COP (Coefficient of Performance) ≥3.5.
Renewable Energy: Integrates with wind turbines (small-scale) and solar pumps, supporting variable speed operation in off-grid systems.
Why Choose Us
Versatility Advantage: Single model covers 2.2-75kW, reducing inventory needs by 40% for distributors.
Adaptability: Wide input voltage range (380-480V ±10%), suitable for unstable grid conditions in emerging markets.
Serviceability: Removable control panel and modular design, enabling 15-minute component replacement during maintenance.
Compliance: CE, UL, and CSA certified, with RoHS 3.0 compliance, ensuring safety and environmental responsibility.
