⑴ Adopting military high-speed DSP central processing unit
High feedback efficiency, accurate control precision, good stability, few harmonics, strong anti-interference ability
⑵ Adopting SVPWM modulation technology
SVPWM modulation technology can achieve DC to AC conversion, perfectly restore three-phase output voltage, and output perfect current waveform through the superposition effect of filters and three-phase power grids
⑶ Adopting LC filtering technology
Effectively suppress harmonics and electromagnetic interference, with current and voltage THD<5%, ensuring feedback of clean electrical energy
⑷ Adopting phase sequence automatic recognition technology
The phase sequence of a three-phase power grid can be freely connected without the need for manual distinction of phase sequence
⑸ Built in fuse
Short circuit protection is in place to ensure safe operation of the elevator
⑹ Can automatically disconnect from faults to ensure the normal operation of the elevator
It is redundant with the original control system of the elevator and does not change the original control mode of the elevator,
⑺ Adopting multiple research and development technologies, compatible with all brands of elevator frequency converters
Significant energy-saving effect, with a comprehensive energy-saving efficiency of 20-50%
The efficiency of regenerative energy recovery is as high as 97.5%
(10) Easy installation, debugging, and operation, convenient maintenance and upkeep
⑾ Adopting self diagnostic technology to ensure accurate output voltage, prevent current backflow, and ensure that the frequency converter is not affected in any way.
Model Specifications
| Model | Grid Voltage (Vac) | Power Rating (kW) | Dimensions (mm) L*W*H | Mounting Hole Pitch (mm) L*W | Hole Diameter (mm) | ||
| Asynchronous Motor | PMSM (Geared) | PMSM (Gearless) | |||||
| PFE4DN-VR01 | 380 | 7.5 - 15 | 7.5 - 11 | 7.5 | Control Box: 235*163*249 Filter Box: 238*163*269 | 220 * 140 | 7 |
| PFE4DN-VR02 | 380 | 18.5 - 30 | 15 - 22 |
Technical Parameters
| Category | Item | Specifications |
| Power Supply | Grid Voltage | Three-phase 380 ~ 460Vac |
| Grid Frequency | 45Hz ~ 65Hz | |
| Control | Current Control Mode | Vector Control, THD < 5% @ 100% Load |
| Output Control Mode | DC Bus Voltage Predictive Control | |
| Feedback Start Voltage | 617Vdc (380V class) ± 120Vdc adjustable | |
| Fan Control | ON at 43℃, OFF at 40℃; or ON when feedback starts, OFF when feedback stops. | |
| Overheat Protection | 81℃ (IGBT internal temperature) | |
| Display | Status Indication | Power indicator, Fault indicator, Feedback status indicator, etc. Parameters adjustable via keypad. |
| Installation Environment | Installation Site | Indoor, altitude ≤ 1000m (derate by 10% for every 1000m increase), no direct sunlight, no conductive dust or corrosive gases. |
| Ambient Temperature | -10 ~ 40℃, well-ventilated | |
| Ambient Humidity | Below 90% RH (non-condensing) | |
| Vibration | Below 0.5g | |
| Air Quality | Free of dust, direct sunlight, corrosive/flammable gases, oil mist, steam, water bodies, etc. No excessive salt content. | |
| Storage Environment | Ambient Temperature | -40 ~ 70℃ |
| Ambient Humidity | 5 ~ 95% RH | |
| Air Quality | Free of dust, direct sunlight, corrosive/flammable gases, oil mist, steam, water bodies, etc. No excessive salt content. |
