GD350A Series High-performance Multifunctional VFD GD350A-004G-4
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.
Detail
1. 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. 2. Strong adaptability to synchronous motors - One-key motor parameter auto-tuning and loop parameter self-adaptation for commissioning-free startup. 3. G/P integration for flexible model selection - Supports G/P integration, making inventory management more convenient and enhancing competitiveness in light-load application scenarios. 4. 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. 5. Functional safety - Built-in Safe Torque Off (STO) function compliant with SIL2 level. 6. 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. 7. 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.
