Hardware and Engineering DF6-340-... Frequency ... - Moeller.com.tr

Setting Parameters01/02 AWB8230-1413GBAutomatic voltage regulation (AVR)The AVR function stabilizes the motor voltage if there arefluctuations on the DC bus voltage. These deviations result from,for example• unstable mains supplies or• DC bus voltage dips or peaks caused by short acceleration <strong>and</strong>deceleration times.A stable motor voltage provides a high level of torque, particularlyduring acceleration.Regenerative motor operation (without AVR function) results in arise in the DC bus voltage in the deceleration phase (particularlywith very short deceleration times), which also leads to acorresponding rise in the motor voltage. The increase in the motorvoltage causes an increase in the braking torque. For deceleration,you can therefore deactivate the AVR function under PNU A081.PNU Name Adjustable in RUN mode Value Function WENormalExtendedA081A082Characteristicof the AVRfunctionMotor voltagefor AVRfunction– – 00 AVR function active during entire operation. 02– – 380, 400, 415,440, 460, 48001 AVR function is not active.02 AVR function active during operation except for deceleration.Voltage threshold for activation the AVR function 400If the mains voltage is higher than the rated motor voltage, enterthe mains voltage under PNU A082 <strong>and</strong>, under PNU A045 reducethe output voltage to the rated motor voltage.Example: At 440 V mains voltage <strong>and</strong> 400 V rated motor voltage,enter 440 under PNU A082 <strong>and</strong> 91 % (= 400/440 x 100 %)under PNU A045.Energy-saving modeEnergy-saving mode is intended especially for pump <strong>and</strong> fanapplications with reduced torque characteristics. In this mode, theoutput voltage is automatically adapted to the motor load, therebydrawing no more energy from the mains than required foroperation.When you enter the value 01 under PNU A085, you can adapt theresponse time of the energy-saving mode under PNU A086. Ashort response time achieves more accurate, <strong>and</strong> a long responsetime less accurate voltage matching.PNU Name Adjustable in RUN mode Value Function WENormalExtendedA085 Energy-saving – – 00 Energy-saving mode not active 00mode01 Energy-saving mode activeA086 Response time j j 0 to 100 s Response time for voltage matching 50.0128