Low speed with great torque; Scalable remote module Especially suitable for Barren Wells,Thick Wells,Gradient Wells and Hori Performance characteristics of Control system Input voltage range: 380V±15% Input frequency range: 47~63Hz Control mode: Vector control with PG (VC), sensorless vector control (SVC), V/F control. Speed accuracy: ±0.1%~±1% Environmental temperature:-45°C-65°C, Ultra-low ...