YASKAWA Varispeed-606PC3 Instruction Manual

2. DIGITAL OPERATOR (JVOP-114) (Cont'ct)SPEED SEARCH FUNCTIONWhen the motor during coasting is started duringchanging operation of commercial power supply andinverter, etc ., the motor can be operated withouttripping by using the speed search function .The speed search command is input from multi-function contact input terminals (D, @ and (5). For thefunctions of terminals 30, ® and a5 , "9" or "10" is set to32 , 33 or R.When setting to "9" : Search from maximumfrequencyWhen setting to "10" : Search from setting fre-quencyBy closing the search command during baseblockand inputting the run command, speed search is startedafter the inverter output is shut off for the minimumbaseblock time 0.5 sec .When the inverter output current is larger than the setvalue of the speed search operation level, the speedsearch operation starts . Frequency in which the inverteroutput current becomes smaller than the speed searchoperation level is judged to be the speed synchronizedpoint, and the motor starts reacceleration/redecelerationup/down to the setting frequency in the set accel/deceltime.Item Name Constant to be Set Factory PresetSpeed Search Function .32, ~a~, 34~ See page 90.Signal during Speed Search 1-3, J~", MI See page 91 .Speed Search Operation Level 150% (fixed)Minimum Baseblock Time 0.5 s (fixed)