Frequency Inverter DF51... - Moeller.com.tr

Setting parameters04/07 AWB8230-1541GBMotor dataThe motor’s ratings plate contains the data you will need toparameterize the frequency inverter.hNote about PNU H004/H204:The number of poles is determined by the motor’s physicaldesign and must be even as the poles are arranged inpairs consisting of a North and a South pole.PNU H007The motor speed is determined by the relationship betweenfrequency and rotor speed:PNU H003230 / 400 V 4.0 / 2.3 A0,75 kW cos ϕ 0.671410 min-1 50 Hzn =fpn: Speed [r.p.m.]f: <strong>Frequency</strong> [Hz]p: Number of pole pairs (numberof poles/2)In the above example, the resulting value for PNU H004 is 4. (Theslight error is caused by the slip – a deviation between stator fieldand rotor speed – inherent to asynchronous motors.)Figure 66:PNU H004Parameters from motor’s ratings platep =fn=150 Hz x 60 Hz xmin Q 21430 r.p.m.Number of poles = p x 2 = 4PNU Designation RUN b031= 10Value Function DSH003 Motor –assigned ratingH203[kW]/{HP} atrated voltage(U e )H004H204Motor –number ofpolesH006 Motor –H206stabilizationconstant– – 0.2; 0.4; 0.55;0.75; 1.1; 1.5;2.2; 3.0; 4.0;5.5; 7.5; 11.0{0.2; 0.4; 0.75;1.5; 2.2; 3.7;5.5; 7.5; 11.0}Defaultdepends onrated voltageand typerating.The default setting (DS) is the assigned motor rating here, for example0.4 = 0.37 kW. The connected motor rating should be only one orderlower (for example 0.25 kW connected to a DF51-…-037). If theconnected load is too small, the motor may suffer thermal overload.– – 2, 4, 6, 8 Number of motor poles (a Note) 4j j 0…255 0 = function is not enabledIf the motor runs unstably, you can improve its operation withPNU H006. Check first whether the set motor rating (PNU H003) andnumber of poles (PNU H004) correspond with the connected motor. Ifthe motor’s rating is higher than the frequency inverter’s output power,reduce the stability constant. If the motor is not running smoothly, youcan also reduce the pulse frequency (PNU b083) or change the outputvoltage (PNU A045).–10066