invt GD350 Series High Performance Multi Function Vfd

Product Information

Specifications:

• Integrates speed, torque, and position control
• Extensible and flexible with PG card, PLC card, communication card, and IO card
• Designed for mid & high-end OEM market
• Applicable to synchronous and asynchronous motors
• Features motor auto-tuning, DC braking, rotating speed tracking, and high torque at low speed

Product Usage Instructions

Installation:
Follow the installation dimensions provided in the manual to ensure proper setup of the VFD.

Configuration:
Choose the appropriate type selection based on your motor type. Install optional parts like PG card, PLC card, communication card, or IO card as needed.

Motor Control:
Utilize the VFD for speed, torque, and position control of motors. Ensure proper wiring and connections for efficient operation.

Performance Optimization:
Utilize features like motor auto-tuning, DC braking, rotating speed tracking, and high torque at low speed to enhance motor performance.

FAQ:

• Q: What industries is the Goodrive350 Series VFD suitable for?
  A: The VFD is mainly suitable for industries like printing, packaging, winding, etc.
• Q: How can I improve stability when controlling multiple motors simultaneously?
  A: Use the rotating speed tracking method provided by the VFD to minimize current shock and improve stability.
• Q: What is the speed regulation range of the Goodrive350 VFD?
  A: The speed regulation range is 1:1000.

Introduction

GD350 is a brand new high-performance VFD which integrates the speed, torque, and position control. It is widely applicable to control over synchronous and asynchronous motors. It is highly extensible and flexible with PG card, PLC card, communication card and IO card, meeting the demands of various industries. It’s oriented for mid&high end OEM market, mainly covering printing, packaging, winding, etc.

Features

• Support SVC and VC(Closed loop) control for both asynchronous and synchronous motors.
• Enable high precision of speed, position, torque control and fast speed response. Support Ethernet/IP, Profinet, CAN Master/Slave, etc.
• Accept plug-in of three expansion cards simultaneously (only two cards≤ 5.5kW(10HP). Integrate safety function-STO(Safe Torque OFF, SIL2).
• Unique I/F control and online transition with other control modes are very suitable for the situation where the Asynchronous motor has low speed with high torque and the speed accuracy is not high.
• Multi-function LCD keypad.
• Support optional Bluetooth card and WIFI card.

Product Advantage

Full motion and all-round

• Performance improvement
  Compared with the products of last generation, the performance is significantly improved
• Motor auto-tuning
  Asynchronous motor‒‒Eliminates the impact of the skin effect, improving the auto-tuning precision. Synchronous motor‒‒Performs auto-tuning on the counter-electromotive force, effectively avoids the impact of the initial value of the counter-electromo-tive force.
• High torque at low speed
  Special I/F control, featuring constant current source, highly applicable to scenarios where multiple motors are to be driven simultaneously and high torque is required at low speed.
• DC braking
  The current change is smoother in the process of the motor entering DC braking from rotating, the current shock is weak, and the current response is faster.
• Rotating speed tracking
  In any of the control modes, the rotating speed tracking method brings the least current shock, and thus significantly improves the stability.

Data measured on a construction machinery site

Control performance

• New-type flux linkage observer, improving the stability of the high-speed control.
• New-type speed/current regulator, improving the current control result in quick start and reducing speed overshoot. New-type phase-locked loop, improving the stability of high-torque control.
• Compensation for output voltage phases and amplitude, improving the stability of high- and low-speed carriers. Adding the synchronous motor VF control mode based on reactive current control. The output current adapts to the load and the oscillation suppression algorithm.

Drive multiple motors

Applicable to drive various motors

Combine different controls
More precise, stronger torque, speed, and position control over motors

Keep running when power down
When the grid encounters a momentary power outage, the VFD can keep running by using the fed-back energy within a certain period of time.
It is highly applicable to chemical fiber and textile production lines and other scenarios where the device is Required to run continuously.

Multiple braking modes to enable fast stop

• Current wave in the SVPWM mode for asynchronous motors Frequency: 10Hz Breaking current: 100%
• PMSM short-circuit braking wave Acceleration time: 0.1s Deceleration time is 0.4s
• Magnetic flux braking current wave in the SVPWM mode for asynchronous motors Frequency: 50Hz Rated load: 100%

Proper voltage and current control, effectively reducing the number of VFD fault protection times

Excellent driving performance on special motors

Multi-function

Enhanced extension performance

1. Optional PLC, I/O, communication, and PG cards
2. Consistent extension card dimensions

Supporting customers’ secondary development

1. Meeting customization requirements, reducing customers’ costs, and improving the processes
2. Optional PLC card, 128 k program memory space

Supporting various industrial communication protocols
Standard Modbus communication, supporting the following communication modes based on extension cards

Adopting the digital filtering technology that improves EMC; the anti-interference performance is twice that of conventional solutions

1. Supporting pulse reference and frequency-divided output;
2. providing the fast encoder disconnection detection function to prevent the expansion of the system fault impact

Standard two HDIs that can serve as speed sources or high-speed AB pulse inputs, which can be used for simple closed-loop application

Supporting built-in brake units at a maximum of 110 kW, reducing customers’ costs and installation space

Providing built-in DC reactors for models of 18.5 kW‒110 kW

Built-in C3 input filters; optional C2 filters for 380V models
Built-in C3 input filters of 380 V in factory reduce external installation space and prevents electromagnetic interference

Note:
C2 filters: EMC performance meets civilian environments. C3 filters: EMC performance meets industrial environments.

Abundant external interfaces, meeting the requirements of most application sites

Ease of use

Wireless commissioning

1. Bluetooth/WIFI connection. You can use the mobile phone application to substitute for the traditional keypad.

Connecting through the Internet of Things (IoT), remote monitoring
Wireless access. You can easily connect to the IoT, operate the VFD through mobile phone or PC, and obtain the running state of the VFD in real time.

Standard USB interface
USB update

Providing the multi-function LCD operating panel, user-friendly design, focusing on user experience

Safe and reliable

Optimal reliability test system, ensuring that the product meets the most complicated application environments
INVT is the first manufacturer in China that has been awarded the Acceptance of Client Testing (ACT) accreditation (data accreditation) issued by TÜV SÜD, which means the technologies, test data, and test reports of INVT’s labs are accepted by TÜV SÜD.

Providing the built-in safe torque off (STO) function, reaching the international level, ensuring more safe and reliable application

1. SIL2 level
2. Can be used to set up a safety system

Application Scenarios

Technical Specification

Type Selection

Power ratings and dimension

Installation Dimension

Wall mounting installation diagram

Flange mounting installation diagram

Floor mounting installation diagram

Optional Parts

• VFDs of 380V, 37 kW or lower are equipped with built-in brake units, and VFDs of 45 kW to 110 kW can be configured with optional built-in brake units
• VFDs of 380 V, 18.5 kW to 110 kW are equipped with built-in DC reactors
• P1 terminals are equipped only for VFDs of 380 V, 132 kW or higher, which enable the VFDs to be directly connected to external DC reactors
• P1 terminals are equipped for all VFDs of the 660 V series or higher, which enable the VFDs to be directly connected to external DC reactors
• The brake units INVT’s DBU series standard brake units. For details, see the DBU operation manual

Breakers and electromagnetic contactors

Reactors

• Above options are external installation, customer need to specify them when choosing and purchasing.
• Can be flexibly adjusted according to the rated working current value.
• For reactors selection with different material requirements from the above recommended table, please refer to《Low Voltage VFD GDL Series Filter Option Brochure》.

Filters

Brake system

Extension cards

Marketing service network

Your trusted industry automation solution provider
E-mail: overseas@invt.com.cn
Website: www.invt.com
INVT Guangming Technology Building, Songbai Road, Matian, Guangming District, Shenzhen, China

Documents / Resources

invt GD350 Series High Performance Multi Function Vfd [pdf] User Guide GD350 Series High Performance Multi Function Vfd, GD350 Series, High Performance Multi Function Vfd, Performance Multi Function Vfd, Multi Function Vfd, Function Vfd, Vfd

References

• User Manual