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Variable frequency inverter (AC motor speed drive, VFD) manufacturer & supplier in China

Home » Products » AC Drive » 380 - 460V AC Drives » adjustable motor speed drive

General purpose adjustable motor speed (frequency) drive

adjustable motor speed drive


Adjustable speed drive (ASD) also knows as adjustable frequency drive (AFD) is the best solution for induction ac motor in energy saving application, we are the manufacturer & supplier in China who are very professional in variable speed (frequency) drives producing for more than 10 years with reliable quality control system.

We developed a new generation adjustable motor speed drive (ASD) called 6000 series and now are mass-produce in our factory production lines to cater customers all of the world. In single phase (1 AC) motor speed drives, 0.4kW to 2.2kW are available and 0.75kW to 630kW in three phase (3 AC). This new adjustable frequency drive (AFD) inherit all of the advantages from the old ones and integrated many new features of its own, running more stable, more silent, the entire performance of this version drives are going better and better.

Our adjustable motor speed drive (ASD) can continuous running even if the electric power off in a certain time which can be set manually, this new & advanced feature allows the machine work automatically in the unstable electric power area, even more, it can track the ac motor's speed in real time and start at the assigned speed when the power on, this makes the ac motor work more smoothly with less maintenance. Also, these kinds of adjustable frequency drive (AFD) inherited the most popular technical features, like PID control, vector control, RS 485 communication and much more.

Main features of the adjustable speed drive (ASD)

• Vector control adjustable ac motor speed drive
• Input voltage: 220V to 240V in both single phase (1 AC) and three phase (3 AC)
                       380V to 460V AC in 3 phase
                       Fluctuate range: ±15%
• Power range: 0.4kW to 2.2kW in single phase (1 AC)
                       0.75kW to 630kW in three phase (3 AC)
• Continuous running in instantaneous electric power off function
• Tracking the ac motor's speed in real time
• Built-in braking unit (for brake resistor connection) for 15kW and lower
• Built-in PID to allow both open loop & close loop control
• 32 bit high speed CPU special for AC motor control
• Simple PLC with multi-step control function
• Multi-function programmable input/output terminals
• Output low frequency in high start torque: 0.5Hz/150%
• Simple servo fixed-length control function
• Offer RS485, support MODBUS-RTU communication protocol
• Dynamic torque current control, rapid response to load's change
• Wobble frequency control special for spinning
• Load distribution control function
• Rich fault protection and operation monitoring function
• Online modify and check parameters for the adjustable ac motor speed drives.


Textile, Metal, Glass, Petrochemical, CNC machine, Fan & pump, Packaging, Chemical fiber, Plastic machining, Printing, Paper & printing

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