11.3 b: Application614 YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual• ov [DC Bus Overvoltage]• SEr [Too Many Speed Search Restarts]■ b3-26: Direction Determining LevelNo.(Hex.) Name Description Default Setting(Range)b3-26(01C7)DirectionDetermining Level Configures the level used to determine the direction of motor rotation.Increase the setting value if determination fails.1000(40 to 60000)■ b3-27: Start Speed Search SelectNo.(Hex.) Name Description Default Setting(Range)b3-27(01C9)Start Speed SearchSelect Configures the conditions used to start the speed search.0(0, 1)Executes External Speed Search command 1/2 [H1-xx = 61/62] for initial speed searches or from the MFDIterminal when the selected conditions are satisfied.0 : SS only if RUN applied before BB1 : SS regardless of RUN/BB sequence■ b3-29: Speed Search Back-EMF ThresholdNo.(Hex.) Name Description Default Setting(Range)b3-29(077C)Speed Search Back-EMF Threshold Configures the induced voltage of motors for which speed searches areperformed. Speed searches are performed when the level of the motorinduced voltage reaches the setting value. Normally there is no need tochange this setting.10%(0 - 10%)Gradually reduce the setting value to make adjustments. If the setting value is reduced too significantly, the speedsearch may not operate correctly.■ b3-31: Search Current Level 1No.(Hex.) Name Description Default Setting(Range)b3-31(0BC0)Search current Level1 Configures the current level used to restrict the output current during theCurrent Detection Speed Search.1.50(1.50 - 3.50)Configure this setting as a ratio of E2-03 [Motor No-Load Current]. Determines a current level given that E2-03is 30% of the motor rated current when E2-03 ≤ Motor Rated Current × 0.3.■ b3-32: Search Current Level 2No.(Hex.) Name Description Default Setting(Range)b3-32(0BC1)Search current Level2 Configures the current level used to complete motor speed searches.1.20(0.00 - 1.49)The Current Detection Speed Search gradually reduces the output frequency to search for the motor speed whenthe output current reaches or falls below Search current Level 2.Configure this setting as a ratio of E2-03 [Motor No-Load Current]. Determines a current level given that E2-03is 30% of the motor rated current when E2-03 ≤ Motor Rated Current × 0.3.V/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLV
