◇ wide range of FM 0-500HZ, arbitrary adjustable

 ◇ provide DC 0-5V/10V,-10V - +10 V ,0-24V  three sets of power

 ◇ 15 kinds of multi-paragraph speed control function

 ◇ pulse input 0 ~ 50KHz (the upper and lower optional)

 ◇ achieve single-Pump / Multi-pump (which requires additional annex) Constant Pressure Water Supply System

 ◇ the carrier frequency is up to 15KHZ, can minimize motor noise

 ◇ standard RS485 communication interface (optional)

 ◇ automatic energy-saving function, automatically adjust the work state of the motor according to load size,keep high efficiency energy-saving operation

 ◇ an internal counter and timer