Guangzhou Sanjing Electric Co. Ltd

Model Number: 8000B VFD 0.75kw-400kw Brand Name: SAJ Key Specifications/Special Features: 8000B series enhanced AC drive is the best choice for high performance speed control of general machinery, suitable for common draught fan, pump, especially for circumstance with high load and quick response demandsStable running:1. Software control improvement: precise motor algorithm with high improvement to calculating speed, current control performance, over current suppression (automatic current limiting, excavator characteristics, oscillation suppression) and decrease to trip times to realize stable running2. Hardware redundancy design, switch power supply load capacity is highly improved (24V up to 200mA, 10V up to 30mA) adopts duel channel power supply (between power supply board and control board) to ensure stability of control powerAccessory power (main component module, rectifier bridge, capacitance are more than 2.5 times) and temperature resistance (-40 to 85°C) grade is highly improved to ensure stable runningStrong performance:1. Performance:① 0.5Hz has 150% start torque output able to realize fluent running by simple adjustment
② over current capability: 150% for 1 minute, 180% for 10 seconds, 200% for moment
2. Functions:
① Speed tracking: to ensure steady start of big large inertia load
② Short circuit protection: to decrease frequency broken caused by external device faults
③ Current leakage protection: to decrease current leakage probability, only connects motor shell to ground terminal of frequency converter and make sure that potential difference is below 30V
Cost saving:
1. Good bottom motor algorithm and optimized default parameter value to ensure strong torque output and decrease debugging time
2. Self-definition function of output relay: to let end-user define output function to simplify circuit design and save costs
Humanized design:
1. Automatic control to fan to decrease VFD standby power and decrease running noise
2. 3-resisting lacquer spray and nickel plating to copper row of internal circuit board to increase environmental adaptation of VFD
3. Wide voltage design of input power supply, works normally between 300-480V AC to increase geographic adaptation of VFD