194 YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual5.5 E: Motor Parameters5.5 E: Motor ParametersE parameters cover V/f pattern and motor data settings.◆ E1: V/f Pattern for Motor 1■ E1-01: Input Voltage SettingSet the input voltage parameter to the nominal voltage of the AC power supply. This parameter adjusts the levels of someprotective features of the drive (overvoltage, Stall Prevention, etc.).NOTICE: Set parameter E1-01 to match the input voltage of the drive. Drive input voltage (not motor voltage) must be set in E1-01 forthe protective features to function properly. Failure to set the correct drive input voltage will result in improper drive operation.E1-01 Related ValuesThe input voltage setting determines the undervoltage detection level as well as DC bus levels used by the KEB functionand the overvoltage suppression function.Note: The braking transistor operation levels are valid for the drive internal braking transistor. If an external CDBR braking chopper isused, refer to the instruction manual of that unit.■ V/f Pattern Settings (E1-03)The drive uses the V/f pattern that has been set to adjust the output voltage relative to the frequency reference. There are15 different preset V/f patterns (setting 0 to E) to select from, each with varying voltage profiles, saturation levels(frequency at which maximum voltage is reached), and maximum frequencies. Additionally, one custom V/f pattern isavailable (setting F). The custom V/f pattern requires the user to create the pattern using parameters E1-04 through E1-10.■ E1-03: V/f Pattern SelectionThe user can select the V/f pattern for the drive and motor from 15 predefined patterns, or create a custom V/f pattern.Setting a Predefined V/f Pattern (Setting 0 to E)Choose the V/f pattern that best meets the application demands from the table below. 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. Parameter E1-03 is not reset when the drive is initialized.Table 5.21 Predefined V/f PatternsNo.<1> The setting range and default value shown here are for 200 V class drives. Double this for 400 V class units.Parameter Name Setting Range DefaultE1-01 <1> Input Voltage Setting 155 to 255 V 200 VVoltage Setting Value ofE1-01(Approximate Values)Uv Detection Level(L2-05)Desired DC Bus Voltage duringKEB (L2-11)ov Suppression /Stall Prevention Level(L3-17)200 V Class All settings 190 V 260 V 375 V400 V Class setting ≥ 400 V 380 V 500 V 750 Vsetting < 400 V 350 V 460 V 750 VNo. Parameter Name Setting Range DefaultE1-03 V/f Pattern Selection 0 to F <1><1> Parameter setting value is not reset to the default value during drive initialization (A1-03).F <2><2> Settings 0 through E are not available when using any of the vector control modes.Setting Specification Characteristic Application0 50 HzConstant torque For general purpose applications. Torque remains constant regardless ofchanges to speed.1 60 Hz2 60 Hz (with 50 Hz base)3 72 Hz (with 60 Hz base)
