1.5 E: Motor ParametersE parameters cover V/f pattern and motor data settings.u E1: V/f Pattern for Motor 1n V/f Pattern Settings (E1-03)The drive uses a V/f pattern to adjust the output voltage relative to the frequency reference. There are 15 different predefinedV/f patterns (setting 0 to E) from which to select, each with varying voltage profiles, saturation levels (frequency at whichmaximum voltage is reached), and maximum frequencies. Additionally, one custom V/f pattern is available (setting F) thatrequires the user to create the pattern using parameters E1-04 through E1-10.n E1-03: V/f Pattern SelectionSelects the V/f pattern for the drive and motor from 15 predefined patterns or creates a custom V/f pattern.No. Parameter Name Setting Range DefaultE1-03 V/f Pattern Selection 0 to F <1> F <2><1> Settings 0 through E are not available in OLV/PM (A1-02 = 5).<2> Parameter is not reset to the default value when the drive is initialized using A1-03.Setting a Predefined V/f Pattern (Setting 0 to E)Choose the V/f pattern that best meets the application demands from Table 1.18. These settings are available only inV/f Control modes. Set the correct value to E1-03. Parameters E1-04 to E1-13 can only be monitored, not changed.Note: 1. Setting an improper V/f pattern may result in low motor torque or increased current due to overexcitation.2. Drive initialization does not reset parameter E1-03.Table 1.18 Predefined V/f PatternsSetting Specification Characteristic Application0 50 HzConstant torque For general purpose applications. Torque remains constantregardless of changes to speed.1 60 Hz2 60 Hz (with 50 Hz base)3 72 Hz (with 60 Hz base)4 50 Hz, Variable torque 1Variable torque For fans, pumps, and other applications where the requiredtorque changes as a function of the speed.5 50 Hz, Variable torque 26 60 Hz, Variable torque 17 60 Hz, Variable torque 28 50 Hz, mid starting torqueHigh starting torqueSelect high starting torque when:• Wiring between the drive and motor exceeds 150 m.• A large amount of starting torque is required.9 50 Hz, high starting torqueA 60 Hz, mid starting torqueB 60 Hz, high starting torqueC 90 Hz (with 60 Hz base)Constant output Output voltage is constant when operating at greater than60 Hz.D 120 Hz (with 60 Hz base)E 180 Hz (with 60 Hz base)F<1> 60 Hz Constant torque For general purpose applications. Torque remains constantregardless of changes to speed.<1> Setting F enables a custom V/f pattern by changing parameters E1-04 to E1-13. When the drive is shipped, the default values for parameters E1-04to E1-13 are the same as those of setting 1.The following tables show details on predefined V/f patterns.1.5 E: Motor Parameters58 YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
