INVT GD350A Series VFD
INVT GD350 IP55 Series – High Performance Variable Frequency Drive.
GD350 IP55 is a multipurpose VFD designed for demanding industrial environments. The IP55 protection rating ensures reliable performance in dusty and outdoor installations.
Description
INVT GD350 IP55 Series – High Performance Variable Frequency Drive.
GD350A takes advantage of dedicated processor for motor control. It enhances scalability and usability with SVC, VC, STO, LCD keypad, etc. The unity of G/P models can accommodate most operational requirements. Besides, GD350A supports mobile APP operation and has secondary development function.
GD350A integrates versatile functions into drive, to meet various load and diversified needs.
Key Features:
• High-performance vector control
• IP55 protection for harsh environments
• Stable torque control
• Energy-saving operation
• Advanced motor protection
Applications:
• Outdoor pump systems
• Industrial machinery
• Heavy-duty automation systems
• Process control applications
Feature :
1. Strong drive capability, compatible with multiple motor types
– Capable of driving permanent magnet synchronous motors (PMSM), asynchronous motors, and synchronous reluctance motors (customized software required), including direct-drive motors, PMSM, motor spindles, asynchronous servo motors, standard asynchronous motors, synchronous reluctance motors, and servo motors.
– Supports multiple control algorithms: V/F, open-loop vector, and closed-loop vector control.
2. Powerful motor control performance with high precision
– Speed and torque control performance: closed-loop vector dynamic speed drop <0.25%, speed overshoot <5%, torque response <5ms.
– Low-speed control performance: speed regulation ratio over 1:200 for PMSM; 100% torque motor-generator ride-through; 150% zero-speed (short-term) hovering.
– Synchronous reluctance control (currently supported via customized software): supports open-loop control (speed regulation ratio 1:100) and closed-loop vector control; dynamic current distribution with optimal vector angle automatically matched for different speed and torque conditions.
3. Strong adaptability to synchronous motors
– One-key motor parameter auto-tuning and loop parameter self-adaptation for commissioning-free startup.
4. G/P integration for flexible model selection
– Supports G/P integration, making inventory management more convenient and enhancing competitiveness in light-load application scenarios.
5. Strong expansion capability with flexible configuration
– Optional I/O cards for additional digital/analog inputs and outputs, and relay output terminals.
– Optional power supply cards for external 24V power, simplifying on-site commissioning.
– Optional communication expansion cards: PROFINET, CANOPEN, PROFIBUS-DP, Ethernet/IP, Modbus TCP, EtherCAT, etc.
6. Functional safety
– Built-in Safe Torque Off (STO) function compliant with SIL2 level.
7. Supports motor temperature detection for enhanced motor protection
– AI/AO interfaces support direct connection to PT100, PT1000, KTY84, and PTC sensors for monitoring motor temperature and implementing protection measures. No need for a separate transmitter, simplifying applications.
8. Supports user-programmable secondary development
– Optional programmable expansion card with support for instruction language, ladder diagram, sequential function chart, and 16K-step program storage, enabling secondary development and lowering system cost.
9. Energy saving
– Supports energy-saving control (MTPA), reducing motor losses.
– VF and vector control support new algorithms, reducing light load current by 30%.
– Lower current harmonics (<7%), reducing motor heating; random PWM modulation for quieter operation.
10. Versatile firmware upgrades
– Remote upgrade via RS485, local serial port, or 4G expansion card.
– Local upgrade via USB flash drive.
11. User-friendly HMI
– Standard multi-function LCD keypad with user-friendly design prioritizing user experience.
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