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The Inovance MD500ET11G is an 11 kW high-performance current vector AC drive from the MD500E series, specifically engineered for precise speed and torque regulation of three-phase asynchronous motors and permanent magnet synchronous motors (PMSM). As a direct technical upgrade from the MD380E series, the MD500E platform integrates advanced sensorless vector control (SVC) and flux vector control (FVC) algorithms, delivering high starting torque at low frequencies, rapid dynamic response, and excellent overload capability.
11 kW (15 HP) heavy-load rating with 150% overload for 60 seconds
Sensorless vector control (SVC) for PM motors without an encoder
Built-in dynamic braking unit as standard (B-suffix models)
Built-in PID, Modbus-RTU (RS485), and multiple expansion options
CE certified; IP20 enclosure
Compact T3 frame design, approximately 30% smaller than previous generation
| Parameter | Specification |
| Model | MD500ET11G |
| Rated Power (Heavy Load) | 11 kW (15 HP) |
| Input Voltage | Three-phase 380-480 VAC, -15% to +10% |
| Actual Voltage Range | AC 323 V - 528 V |
| Input Frequency | 50/60 Hz, 卤5% (actual: 47.5-63 Hz) |
| Rated Input Current | 32.2 A |
| Rated Output Current | 25.0 A |
| Output Voltage | Three-phase 0 V to input voltage |
| Max. Output Frequency | 500 Hz (adjustable via parameter) |
| Carrier Frequency | 0.8 kHz - 8.0 kHz (auto-adjustable based on load) |
| Overload Capacity | 150% rated current for 60 s |
| Power Capacity | Approx. 33.4 kVA |
| Heat Dissipation | Approx. 0.355 kW |
1. PM Synchronous Motor Ready - Specifically designed for permanent magnet synchronous motor control, enabling high-efficiency operation without an encoder in open-loop SVC mode
2. High Starting Torque - 150% at 0.25 Hz (SVC) / 180% at 0 Hz (FVC)
3. Built-in EMC Filter - Compliant with CE, UL, cUL, and RoHS standards, ready for global export
4. Built-in Braking Unit - Standard on B-suffix models, eliminating the need for external braking hardware
5. Compressor-Optimized Functions - PID control, sleep/wake function, constant pressure mode
6. Compact Design - Approximately 30% smaller than the previous MD380E series
The MD500ET11G is widely deployed in medium-power industrial applications requiring high reliability and continuous operation:
Water & Wastewater: Constant-pressure water supply with PID closed-loop control; pump station energy saving
HVAC & Ventilation: Centrifugal fans, induced draft fans, supply air fans
Material Handling: Belt conveyors, roller conveyors, hoists
Packaging & Food: Packaging machines, mixers, food processing lines
Machine Tools: Spindle drives, CNC auxiliary axes
Textile & Paper: Winding machines, wire drawing machines
The MD500E series delivers 10-30% energy savings in pump and fan applications compared with fixed-speed operation.
