Sensorless Parameters Estimation of VFD Based Cascade Centrifugal Pumping System Using Automatic Pump Curve Adaption MethodAutomatic pump adaptationCentrifugal pumpsEnergy efficiencyParameter estimationVariable frequency drives (VFD)Sensor-lessSustainable development goal (SDG)...
V/F control or Vector control Rated Power 30~75kw Nominal Voltage 380v power phase number Three phase Other attributes Place of Origin Anhui, China Brand Name ZONCN Model Number ZONCN Z2000 series Type Frequency Inverter Product name...
V/F Control V/F curve (voltage frequency characteristic) The reference frequency can be set arbitrarily between 5 and 600Hz, the multi-point V/F curve can be set arbitrarily, and various fixed curves such as constant torque, low reduction torque 1, low reduction torque 2, and square...
V/F Control V/F curve (voltage frequency characteristic) The reference frequency can be set arbitrarily between 5 and 600Hz, the multi-point V/F curve can be set arbitrarily, and various fixed curves such as constant torque, low reduction torque 1...
V/F curve User defined V/F curves, linear V/F curves, and three reduced torque characteristic curves Automatic voltage adjustment (AVR) The duty ratio of output PWM signal is adjusted automatically based on the fluctuation of bus voltage, to reduce the influence of grid voltage fluc...
0.5 ~3000Hz, and the multi-point V/F curve is arbitrarily set. You can also choose constant torque, reduced torque 1, reduced torque 2, square torque and other fixed curves Torque boost Manual setting: 0.0 ~30.0% of rated output Au...
There are mechanical needs such as kVA vs. kW on pumps, fans, and motors during mechanical checkout. Commissioning may require a check of that pump curve. It may be in KW. Ask the mechanical commissioning guru for their needs. If there is network, assure that these requirements are a par...
The longer the S curve time period the smoother the transition between speeds. 01 - 22 Modulation Index Factory Setting: 1.00 Settings 0.90~1.20 Unit: 0.1 This parameter sets the ratio of the Maximum Output Voltage to the input voltage. The Maximum Output Voltage (Pr.01-02) is normally ...
V/F curve 1:linear curve;2:quadratic;3:user defined V/F curve Automatic energy-saving operation Auto optimize V/F curve according to the load changes to realize the energy saving operation . Built-in PID This can form a convenient closed-loop control system...
V/F curve(volt. frequency characteristic)Set rating frequency randomly at range of 5~650Hz,can choose constant torque, degressive torque 1,degressive torque 2,degressive torque 3,user defined V/F curve in total 5 kinds of curve acceleration and deceleration...