Program features 65WARNING: The motor must be designed to absorb or dissipate the thermalenergy generated by continuous magnetization, for example by forcedventilation.SettingsParameters 06.21 Drive status word 3 (page 134), 21.01 Start mode, 21.02Magnetization time, 21.08…21.12, 21.14 Pre-heating input source and 21.16 Pre-heating current (page 203). Hexagonal motor flux patternNote: This feature is only available in scalar motor control mode (see page 22).Typically, the drive controls the motor flux so that the rotating flux vector follows acircular pattern. This is ideal for most applications. However, when operating abovethe field weakening point (FWP), it is not possible to reach 100% of the outputvoltage. This reduces the peak load capacity of the drive.Using a hexagonal motor flux vector pattern, the maximum output voltage can bereached above the field weakening point. This increases the peak load capacitycompared to the circular pattern, but the continuous load capacity in the range ofFWP … 1.6 × FWP is reduced because of increasing losses. With hexagonal motorflux active, the pattern changes from circular to hexagonal gradually as the frequencyrises from 100% to 120% of the FWP.SettingsParameters 97.18 Hexagonal field weakening and 97.19 Hexagonal field weakeningpoint (page 427).ghv Vertriebs-GmbH | Am Schammacher Feld 47 | 85567 Grafing | Telefon + 49 80 92 81 89 0 | info@ghv.de | www.ghv.de
