Vector Control General Purpose Inverter
Overview NH820 5.5KW-11KW general-purpose vector inverter targets medium heavy-load industrial equipment, divided into 5.5KW,7.5KW,11KW power grades, all three-phase 380V input. Upgraded DSP control chip optimizes heavy-load torque response, solving insufficient low-speed torque for wire drawing, centrifugal dehydrators and medium machine tools. Support complex composite frequency source superposition, independent S curve acceleration/deceleration for…
Overview
NH820 5.5KW-11KW general-purpose vector inverter targets medium heavy-load industrial equipment, divided into 5.5KW,7.5KW,11KW power grades, all three-phase 380V input. Upgraded DSP control chip optimizes heavy-load torque response, solving insufficient low-speed torque for wire drawing, centrifugal dehydrators and medium machine tools.
Support complex composite frequency source superposition, independent S curve acceleration/deceleration for impact-sensitive equipment, built-in complete PLC logic to save external relay control cabinets. Dual protection logic of stall control + fast current limiting greatly improves continuous operation stability for 24h production lines. Available plastic and sheet metal two structural versions for different cabinet space demands.
Application Industries
- Dual structural options: plastic compact shell / sheet metal enhanced heat dissipation shell
- Strong 0.5Hz/150% starting torque, perfect for heavy-load startup centrifugal equipment
- Multi-point V/F curve specially optimized for dehydrator, centrifuge, wire drawing fluctuating torque load
- Double heat dissipation channel design, stable operation under long-time medium overload
- 16-segment multi-speed operation via terminal or internal PLC, replace external speed controller
- AVR voltage stabilization function, adapt factory unstable grid voltage environment
- DC braking adjustable frequency, time and current, quick stop for cutting & winding equipment
| Item | Parameter |
|---|---|
| Power Grades | 5.5KW,7.5KW,11KW, 3P 380V AC Input |
| Control Mode | High-performance V/F vector drive |
| Overload Spec | G heavy load:150% rated current 60s; P light pump/fan load:130% 60s |
| Starting Torque | G-type 0.5Hz/150%; P-type 0.5Hz/100% |
| I/O Expansion | Standard high-speed pulse input/output, dual analog voltage/current input, relay signal output for fault alarm |
| Core Function | Built-in PID, simple PLC 16-speed, jog, wobble frequency, speed tracking, automatic energy-saving operation |
| Communication | RS485 Modbus, 10 main +10 auxiliary frequency source mixing adjustment |
| Braking Performance | DC braking frequency 0~max frequency, braking current 0~100%, braking time 0~36s |
Installation dimensions of the keyboard base
Diagrams of the overall dimensions and installation dimensions of the plastic structure
| Applicable models | Rated output power (kW) | Input voltage | A (mm) | B (mm) | H (mm) | W (mm) | D (mm) | Installation aperture (mm) |
|---|---|---|---|---|---|---|---|---|
| 820/860S | 0.4~2.2 | Single‑phase 220V range: -15%~ +15% |
90 | 157 | 170 | 101 | 142 | Φ5 |
| 820/860S/860E | 0.75~2.2 | Three‑phase 380V range: -15%~ +15% |
90 | 157 | 170 | 101 | 142 | Φ5 |
| 820/860S/860E | 4~5.5 | 111 | 183 | 197 | 129 | 175 | Φ5 | |
| 820/860S/860E | 7.5 | 137 | 237 | 256 | 157 | 190 | Φ5 | |
| 820 | 11 | 137 | 237 | 256 | 157 | 190 | Φ5 | |
| 820 | 15~22 | 151 | 303 | 320 | 170 | 222 | Φ5.8 | |
| 820 | 30~37 | 205 | 366 | 380 | 218 | 235 | Φ6 |
Diagrams of the overall dimensions and installation dimensions of the sheet metal structure
| Applicable models | Rated output power (kW) | Input voltage | A (mm) | B (mm) | H (mm) | W (mm) | D (mm) | Installation aperture (mm) |
|---|---|---|---|---|---|---|---|---|
| 820/860S | 0.4~2.2 | Single‑phase 220V range: -15%~ +15% |
90 | 157 | 170 | 101 | 142 | Φ5 |
| 820/860S/860E | 0.75~2.2 | Three‑phase 380V range: -15%~ +15% |
90 | 157 | 170 | 101 | 142 | Φ5 |
| 820/860S/860E | 4~5.5 | 111 | 183 | 197 | 129 | 175 | Φ5 | |
| 820/860S/860E | 7.5 | 137 | 237 | 256 | 157 | 190 | Φ5 | |
| 820 | 11 | 137 | 237 | 256 | 157 | 190 | Φ5 | |
| 820 | 15~22 | 151 | 303 | 320 | 170 | 222 | Φ5.8 | |
| 820 | 30~37 | 205 | 366 | 380 | 218 | 235 | Φ6 |
| Applicable models | Machine type (kW) |
Overall dimensions | Installation dimensions | Installation hole diameter | |||
|---|---|---|---|---|---|---|---|
| H(mm) | W(mm) | D(mm) | H1(mm) | W1(mm) | mm | ||
| 820/860S/860E | 11‑15 | 340 | 204 | 214 | 325 | 150 | Φ6 |
| 820/860S/860E | 18.5‑22 | 360 | 224 | 214 | 345 | 150 | Φ6 |
| 820/860S/860E | 30‑37 | 380 | 262 | 220 | 360 | 192 | Φ9 |
| 820 | 45 new | 480 | 270 | 250 | 465 | 190 | Φ7 |
| 820 | 45‑75 | 450 | 330 | 259 | 430 | 240 | Φ9 |
| 860S/860E | 45‑75 | 570 | 380 | 263 | 547.5 | 240 | Φ10 |
| 860S/860E | 90‑132 | 610 | 400 | 286 | 587.5 | 240 | Φ12 |
| 860S/860E | 160‑220 | 760 | 500 | 355 | 735 | 200 | Φ12 |
| 860S/860E | 250‑400 | 862 | 750 | 455 | 832 | 250 | Φ12 |
| 820/860S | 450‑560 | 1122 | 950 | 505 | 1092 | 350 | Φ12 |
| 820/860S | 630‑750 | 1045 | 1050 | 505 | 1015 | 400 | Φ12 |
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