RG series elevator专用能量回馈单元采用先进的矢量控制技术，实现回馈电流波形的精确控制，谐波含量更小。
The RG series elevator energy feedback unit is an intelligent energy regeneration unit used with inverters to improve elevator energy efficiency and machine-room heat dissipation. It uses high-performance IGBTs and advanced PWM control technology.
The manual covers model designation, nameplate information, standard specifications, appearance and dimensions, installation, main-circuit and auxiliary-contact wiring, LCD and simplified operation panels, maintenance, and warranty. This manual is written in Chinese.
| Maximum adapted motor power | 15, 30, 37, 45, 55, 75, 110 kW |
|---|---|
| Input grid voltage | Three-phase 380 V ±15%, phase imbalance less than 10% |
| Grid frequency | 50/60 Hz ±3 Hz |
| Feedback start voltage | Default 610 V, adjustable |
| Hysteresis voltage | 20 V |
| Feedback algorithm | Space vector PWM (SVPWM) |
| Feedback energy THD | Less than 5% |
| AC-side power factor | Greater than 0.96 |
| Braking response time | Under 2 ms |
| Overvoltage protection | DC side 780 V |
| Overcurrent protection | Over 200% of rated current |
| Protection rating | IP20 |
| Cooling method | Forced air cooling |
| Environment | Below 90% RH (non-condensing), -20 to 40 C |
| Installation | Indoor, altitude not greater than 1000 m |
| Built-in reactor | Yes |
| Built-in noise filter | Yes |
The default feedback start voltage is 610 V and it is adjustable; the minimum value must be at least 30 V above the equivalent DC voltage of the external grid.
Only the RG-4110 model has the braking unit function.
The input grid voltage is three-phase 380 V ±15%, with phase imbalance less than 10%.
The protection rating is IP20 and cooling is forced air cooling.