Toshiba QX7 Adjustable Speed Drives – HVAC 18-Pulse Technology
The Toshiba QX7 is an advanced adjustable speed drive engineered for HVAC applications where harmonic content control is essential. Featuring patented 18-pulse design, compact footprint, and versatile communication options, the QX7 delivers superior performance, efficiency, and reliability without the need for additional filters or costly isolation transformers.
Key Points
- Patented 18-Pulse Design – Meets IEEE-519 harmonic guidelines without additional filters.
- High Efficiency – Up to 60% reduction in transformer losses and clean sinusoidal input current waveform.
- Flexible Communication – Supports Modbus, Profibus, Ethernet IP, and more for easy integration.
- Robust Construction – NEMA 1 gasketed and filtered enclosure with top/bottom cable access.
- Compact Size – Uniform 24" depth with integrated phase-shifting autotransformer saves space.
- User-Friendly Interface – Rugged LCD display with menu-driven parameters for quick setup.
- HVAC-Focused Features – Fire speed circuit, damper permissive function, and advanced PID settings.
- Wide Power Range – Available from 60 HP to 800 HP with extensive programmable options.