Saj Three Phase Ac Drives Frequency Inverter - Ip20 Protection, 220/380v Supply Voltage | High Start Torque, Stable Running Performance, Speed Sensorless Vector Control

We manufacture, export and supply SAJ Three Phase AC Drives Frequency Inverter in Guangzhou, Guangdong, China.

Introduction:
Based on 8000 series and S350 series standard AC drive,8000B series AC drive is a brand new product developed by SAJ according to technical development direction of future VFD. 8000B series AC drive adopts brand new parameter sets with speed sensor less vector control and V/F control to realize high performance control to motor. Its application is highly improved.

A.Stable 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 running.
2. 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 power. Accessory power (main component module, rectifier bridge, capacitance are more than 2.5 times) and temperature resistance(-40-85A C) grade is highly improved to ensure stable running.

B. Strong Performance
1. Performance
a. 0.5Hz has 150% start torque output; able to realize fluent running by simple adjustment.
b. over current capability:150% for 1 minute;180% for 10 seconds;200% for moment.
2.functions:
a. speed tracking: to ensure steady start of big large