Sleep Wake PMSM VFD
Product Overview The NH860E 860E-18.5-22KW general-purpose high-performance current vector inverter is mid-power heavy-duty VFD designed to regulate speed & torque of three-phase asynchronous and permanent magnet synchronous motors. Equipped with advanced 32-bit DSP main control chip, integrated SVC open-loop vector, FVC closed-loop vector and independent torque control algorithm, it delivers stable high-precision…
Product Overview
The NH860E 860E-18.5-22KW general-purpose high-performance current vector inverter is mid-power heavy-duty VFD designed to regulate speed & torque of three-phase asynchronous and permanent magnet synchronous motors. Equipped with advanced 32-bit DSP main control chip, integrated SVC open-loop vector, FVC closed-loop vector and independent torque control algorithm, it delivers stable high-precision drive for mid-size industrial equipment.
This 18.5kw–22kw vector frequency converter maintains strong low-speed high-torque output, excellent dynamic response and robust overload resistance. It reserves full expansion interfaces for PG encoder cards, IO expansion and isolated communication modules, balancing industrial reliability and flexible function expansion. Widely deployed in mid-end manufacturing machinery: injection molding machines, screw air compressors, textile spinning equipment, medium CNC machining centers and light hoisting equipment.
Application Scenarios
Mid-power industrial equipment: injection molding machine, screw air compressor, textile looms, medium CNC machine tools, light lifting cranes, constant pressure water supply pumps, conveyor belt systems
Product Features
- Dual vector control for PM synchronous motor: SVC sensorless vector & FVC closed-loop vector with encoder feedback
- Multi-encoder compatible: ABZ incremental, UVW incremental, resolver encoder support
- Wide voltage input with AVR automatic voltage regulation; momentary power loss non-stop operation
- Multiple frequency setting channels: digital knob, analog 0–10V/0–20mA, PID, RS485 Modbus, 16-step simple PLC multi-speed
- Smooth soft start with speed tracking function; energy-saving DC bus parallel sharing supported
- Low running noise, reinforced EMC anti-interference circuit for factory harsh environment
- Heavy overload capacity: continuous 150% rated torque output for 60 seconds
- Built-in fast-response independent PID algorithm, simple parameter debugging for constant pressure/constant flow control
- 16-step speed simple PLC: timing, fixed-speed, forward/reverse logic automatic operation
- Complete multi-layer protection: overvoltage, overcurrent, phase loss, overheat, motor short-circuit, overload stall prevention
- Dual-language Chinese/English LCD/LED operation panel, pluggable detachable keypad
- Optional Profibus-DP & Modbus-RTU industrial communication protocols
- Independent vertical air duct heat dissipation, detachable cooling fan for easy maintenance
| Item | Specification | |
| Control characteristics | Output frequency | 0 – 500HZ |
| Carrier frequency | 0.8kHz ~ 12kHz. The carrier frequency can be automatically adjusted according to the load characteristics. | |
| Output frequency resolution | Digital setting: 0.01Hz | |
| Analog setting: Maximum frequency × 0.025% | ||
| Control mode | Open – loop vector control (SVC) V/F control Closed – loop vector control (FVC) |
|
| Torque characteristics | With torque compensation and slip compensation, the starting torque can reach 150% at 0.25Hz (SVC) | |
| Torque control accuracy | SVC: Above 5Hz ± 5% FVC: ± 3% | |
| Over-voltage and over-current stall prevention protection | Automatically limit the voltage and current during use to prevent frequent over – voltage and over – current tripping | |
| Speed regulation range | 1:200 (SVC) 1:1000 (FVC) | |
| Speed stabilization accuracy | ±0.5% (SVC) ±0.02% (FVC) | |
| Overload capacity | 150% of the rated output current for one minute | |
| V/F curve | Four modes: linear; multi – point; complete V/f separation; incomplete V/f separation | |
| Acceleration and deceleration curve | Linear or S – curve acceleration and deceleration modes; four acceleration and deceleration times; acceleration and deceleration time range 0.1 ~ 6500.0s |
|
| DC braking | DC braking frequency: 0.00Hz ~ maximum frequency. Braking time: 0.0s ~ 36.0s, braking action current value: 0.0% ~ 100.0% | |
| Jog control | Jog frequency range: 0.00Hz ~ maximum frequency; jog acceleration and deceleration time 0.1s ~ 6500.0s | |
| Simple PLC, multi-step speed operation | Up to 16 – step speed operation can be achieved through the built – in PLC or control terminals | |
| Built – in PID | It can easily realize the process – control closed – loop control system | |
| Automatic voltage regulation (AVR) | When the grid voltage changes, it can automatically maintain a constant output voltage | |
| Fast current – limiting function | Minimize over – current faults to the greatest extent and protect the normal operation of the frequency converter | |
| Operating characteristics | Operating command channel | Three channels: given by the operation panel, given by the control terminals, given by the serial communication port. It can be switched in various ways |
| Frequency source | Ten frequency sources: given by panel knob, given by operation panel, given by analog voltage, given by analog current, given by RS485 communication, multi – speed, PID, simple PLC, which can be switched in various ways | |
| Auxiliary frequency source | Ten auxiliary frequency sources. It can flexibly achieve auxiliary frequency fine – tuning and frequency synthesis | |
| Input terminals | Five digital input terminals, one of which can be used as a high – speed pulse input. Two analog input channels, AI1: input range 0 ~ +10V, AI2: input range 0 ~ +10V/0 – 20mA |
|
| Output terminals | One high – speed pulse output terminal, capable of outputting a square – wave signal from 0kHz ~ 50kHz, which can realize the output of physical quantities such as set frequency and output frequency. It can be selected as open – drain type One digital output terminal One relay output terminal Two analog output terminals: 0V ~ 10V/0 – 20mA, which can indicate the output of output frequency/current/voltage/frequency command/rotational speed/power factor signals |
|
| Display and keyboard operation | LED display | It is equipped with 8 function keys, a 5 – digit 7 – segment LED, and 5 status LED indicators It can perform forward rotation, reverse rotation, reset, stop, jog, as well as parameter setting and display |
| Protectioncharacteristics | Protection function | Motor short – circuit detection upon power – on, input and output phase – loss protection, over – current protection, over – voltage protection, under – voltage protection, over – heat protection, overload protection, short – circuit protection, etc |
| Othercharacteristics | Optional card | IO expansion card, communication card (isolated type), PG card |
| Multi – encoder support | Supports differential, open – drain, UVW, resolver | |
| Environment | Application place | Indoors, not directly exposed to sunlight, free from dust, corrosive gases, flammable gases, oil mist, water vapor, dripping water or salt, etc |
| Altitude | Less than 1000m | |
| Ambient humidity | – 10℃ ~ + 40℃ (When the ambient temperature is between 40℃ ~ 50℃, derating operation is required) | |
| Humidity | Less than 95%RH, without water droplet condensation | |
| Vibration | Less than 5.9m/s² (0.6g) | |
| Storage temperature | – 20℃ ~ + 60℃ | |
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