Hopewind PV Products-Hopewind

The HV350 Series inverter is a newly developed general-purpose vector inverter by Hopewind Electric. It adopts advanced open-loop control technology, supporting asynchronous motor drive control. On the design principles of abundant software functions, better performance and higher reliability, this inverter features smaller volume with improved expandability, more communication functions and easier operation.

Performance characteristics

High Reliability

• Innovative Independent Air Duct, protecting the inverter from dust and sundries •Applying efficient and precise thermal simulation software •Adopting advanced thermal testing, validation technology, and equipment •Rigorous full-load and overload testing procedures •All products passing high-temperature load aging tests before leaving the factory •Three-proof (waterproof, dustproof, corrosion-resistant) Paint Automatic Spraying Process

High Adaptability

• Wide Voltage Range, 3-phase 380V to 480V • Built-in C3 filter • Simple and user-friendly EMC grounding design • Book-shaped design with 40% smaller volume than traditional models • Supports side-by-side installation of multiple inverters

Outstanding Performance

• Supports drive control of 3-phase asynchronous motors • Supports V/F control and open-loop vector control • Comprehensive motor auto-tuning functions, including dynamic, static, and static+dynamic auto-tuning

Various Expansion Functions

•Optional I/O terminal expansion cards •Supports PROFIBUS-DP, PROFINET IO, CANopen, Modbus TCP/IP, EtherCAT, EtherNet/IP, and other industrial bus protocols

Industry-specific Ease of Use

•Models of 22 kW and below are equipped with a standard built-in braking unit, while models from 30 kW to 560 kW include an optional one. •Supports process-specific PID control, applicable to constant temperature, pressure, and tension control •Supports wobble function for fiber and textile industry applications •Supports random PWM depth adjustment to reduce motor noise •Supports V/F half-separation and complete separation modes

Autonomous Rapid Debugging

•Supports event logging and fault recording •Provides diagnostic tools for real-time error tracking

main parameters

Item		Specification Description and Technical Data
Power input/output	Input voltage	Input voltage: 380V (-15%) to 480V (+10%) Phase: Three-phase
	Input power frequency	50Hz/60Hz ±5%
	Input voltage imbalance	≤3%
	Output voltage	0V~Input voltage
	Output frequency	0～600Hz
Master control performance	Motor type	Asynchronous motor
	Control mode	V/F, OLVC(Open-loop Vector Control)
	Speed range	1:100 V/F; 1:200 OLVC
	Starting torque	OLVC: 150%(0.25Hz)
	Torque precision	±5% (OLVC, above 5Hz)
	Torque ripple	≤±5%, in Vector control mode
	Speed stability	OLVC, 0.2%
	Torque response	≤5ms, in Vector control mode
	Acceleration/deceleration time	0.0s~3200.0s; 0.0min~3200.0min
	Torque boost	0.0%~30.0%
	Overload capacity	G type: 150% 1min/5min; 180%10s/5min; P type: 110% 1min/5min; 150% 10s/5min
	V/F curve	Straight-line type, multi-point type, V/F Half separation mode, V/F complete separation mode
	Input frequency resolution	Digital setting: 0.01Hz, Analog setting: maximum frequency ×0.025%
Main functions	Acceleration/deceleration curve	Straight line and S-curve
	Simple PLC, Multi-speed control	16 speed segments supported through control terminals
	Automatic voltage regulation (AVR)	Automatically keeps the output voltage constant when grid voltage varies within a certain range
	Fixed length control	Control with given length
	Built-in PID	Easily forms a closed-loop control system
	Multi-motor switching	Switchover between two groups of motor parameters to control the two motors
	Virtual I/O	8 groups of virtual VDI/VDO, 3 groups of AI as DI, enabling simple logic control
	Overvoltage/Overcurrent stall control	Automatic current and voltage limitation during operation preventing the inverter from tripping due to frequent overcurrent or overvoltage
	Restart after power failure	After power failure and restoration, the inverter waits for a set time before automatically running
	Quick current limiting	Avoids frequent overcurrent faults in the inverter
Power input/output	Frequency setting method	Keypad; terminal UP/DOWN; multi-reference; pulse reference; communication
	Analog input terminals	AI1; AI2: 0V~10V/ 0 (4)mA~20mA
	Digital input terminals	DI1-DI5, 5 programmable digital input terminals with opto-isolation, compatible with both sinking/sourcing inputs. DI5 supports high-speed pulse input with a maximum input frequency of 100kHz.
	Digital output terminals	Open-collector output; output voltage range: 0V~24V; current load capacity: 50mA. DO1 supports high-speed pulse output with a maximum output frequency of 100kHz.
	Analog output terminals	1-channel 0V ~ 10V/0(4)mA ~ 20mA
	Relay output	1-channel Form C contact, NO+NC
Communication	Communication protocols	Modbus RTU (standard configuration); Profibus-DP; Profinet IO; CANopen; Modbus TCP/IP; Ethercat; EtherNet/IP (optional configuration)
Ambient requirements	Altitude	≤1000m: no need for derating 1000~3000m: current derating by 1% per 100m increased
	Ambient temperature	-25℃～+40℃ (Running with derating allowed between 40~55)
	Humidity	15% ~ 95%, No condensation
	Vibration	3M3, IEC60721-3-3
	Storage temperature	−40°C~+70°C
	Installation place	Indoor, without direct sunlight, free from flammable, corrosive gases, liquids, and conductive particles.
Optional accessories		Communication expansion card, I/O terminal expansion cards
Protections		Protection against short circuit , overcurrent, overload, overvoltage, undervoltage, phase loss, overtemperature, external faults, etc.
Installation method		Installed in a cabinet
Protection rating		IP20
Cooling method		Air cooling