4-2 Function Mode PID Enable/Disable and PID Integral Reset The PID enable/disable function disables the PID function temporarily through terminal input. This overrides the A071 setting to control the motor frequency. Also, the PID integral reset function clears the PID integral value that has until then been integrated through terminal input. This helps stop the motor when the frequency control is shifted to the PID control. For details on the PID function, refer to "PID Function" (page 4-20). 4 Functions UP/DOWN Function This function changes the Inverter output frequency using UP and DWN terminals of the multi- function inputs.
•While the UP/DWN terminal is turned on, the acceleration/deceleration time depends on F002, F003/F202, and F203. •You can store a frequency set value after UP/DWN adjustment. Choose whether to store the value with C101. Also, you can clear the stored frequency set value by allocating 29 (UDC) to the desired multi- function input and turning on/off the UDC terminal. 4-59 Data Symbol Function name Status Description 23 PID PID enabled/disabled ON Disables the PID function. OFF Does not affect the PID function. 24 PIDC PID integral reset ON Forcibly sets the PID integral value to zero.
OFF Does not affect the PID function Related functions C001 to C005 Required settings A071=01 Data Symbol Function name Status Description 27 UP UP/DWN function accelerated ON Increases the current speed during the signal input period. OFF Keeps the current speed. 28 DWN UP/DWN function decelerated ON Decreases the current speed during the signal input period. OFF Keeps the current speed. 29 UDC UP/DWN function data clear ON Clears the stored UP/DWN speed. OFF Keeps the stored UP/DWN speed. Related functions C001 to C005 Required settings A001 = 02, C101