5.2 b: Application166 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual b3-25: Speed Search Wait TimeSets the wait time between Speed Search restarts. Increase the wait time if problems occur with overcurrent, overvoltage,or if the SEr fault occurs. b3-26: Direction Determining LevelSets the level that determines the direction of motor rotation. Increase this value if the drive fails to detect the direction ofthe motor correctly.Note: This parameter is available in models CIMR-A4A0930 and 4A1200. b3-27: Start Speed Search SelectSelects a condition to activate Speed Search Selection at Start (b3-01) or External Speed Search Command 1 or 2 fromthe multi-function input.Setting 0: Triggered when a Run command is issued (normal).Setting 1: Triggered when an external baseblock is released. b3-29: Speed Search Induced Voltage LevelThere is normally no need to change this parameter from the default value.Lower this value in small increments if changes are necessary. However, setting this value too low will prevent the drivefrom performing Speed Search.Note: This parameter is not available in models CIMR-A4A0930 and 4A1200. b3-33: Speed Search Selection when Driving Instruction is Input in UvActivates or deactivates the speed search at start in accordance with whether or not a Run command was issued during anundervoltage (Uv) if operation during a momentary power loss (L2-01 = 1 or 2), the speed search at start (b3-01 = 1), andcoasting to a stop (b1-03 = 1) are enabled.Note: This parameter is not available in models CIMR-A4A0930 and 4A1200.Setting 0: Speed Search disabledSetting 1: Speed Search enabled b4: Delay TimersThe timer function is independent of drive operation and can be used to delay the switching of a digital output triggeredby a digital input signal. An on-delay and off-delay can be separately set. The delay timer can help to get rid of chatteringswitch noise from sensors.To enable the timer function, a multi-function input must be set to “Timer input” (H1-=18) and a multi-functionoutput must be set to “Timer output” (H2-=12). One timer can be used only.No. Name Setting Range Defaultb3-25 Speed Search Wait Time 0.0 to 30.0 s 0.5 sNo. Name Setting Range Defaultb3-26 Direction Determining Level 40 to 60000 Determined by C6-01 ando2-04No. Name Setting Range Defaultb3-27 Start Speed Search Select 0, 1 0No. Name Setting Range Defaultb3-29 Speed Search Induced Voltage Level 0 to 10% 10%No. Name Setting Range Defaultb3-33 Speed Search Selection when Driving Instruction is Input in Uv 0 or 1 0
