Siemens MICROMASTER 440 Operating Instructions Manual

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Contents

Issue 10/06 6 CommissioningMICROMASTER 440Operating Instructions (Compact) 516.4.17.1 Sensorless vector control (SLVC)Control mode20 Closed-loop Vector control – speed without encoderSLVC can provide excellent performance for the following types of application:• Applications which require high torque performance• Applications which require fast respond to shock loading• Applications which require torque holding while passing through 0 Hz• Applications which require very accurate speed holding• Applications which require motor pull out protectionFilter time for act. freq (SLVC)Sets time constant of PT1 filter to filter the frequency deviation of speed controller inoperation mode SLVC (sensorless vector control).Decreasing the value leads to a higher dynamic of the speed regulation. Instability is seenif the value is to low (or to high). p1452 = 2 can be set for most applications.Gain speed controller (SLVC)Enters gain of speed controller for sensorless vector control (SLVC).Integral time n-ctrl. (SLVC)Enters integral time of speed controller for sensorless vector control (SLVC).r1438r1084–Kp Tnp1470 p1472r0064p1496 p0341 p0342p1489p1488p1452Act. frequencyfrom observer modelr0063r1170–PrecontrolFreq. setpointTorquesetpointDroop150 msr1518p1492r149001 0r0079r1508*)*) only active, if pre-control is enabled(p1496 > 0)Continuous torque boost (SLVC)Sets continuous torque boost in lower frequency range of SLVC (sensorless vector control).Value is entered in [%] relative to rated motor torque r0333.p1610 is only effective in the open-loop mode between 0 Hz and approx. ±p1755.Acc. torque boost (SLVC)Sets acceleration torque boost in lower frequency range of SLVC (sensorless vectorcontrol). Value is entered in [%] relative to rated motor torque r0333.p1611 is only effective in the open-loop mode between 0 Hz and approx. ±p1755.In opposite to p1610 the acceleration torque boost p1611 is only in operation duringacceleration/deceleration.0P1300=20P1452 = ...P1470 = ...P1472 = ...P1610 = ...P1611 = ...4 ms3.0400 ms50.0 %0.0 %