4-2 Function Mode •If control gain switching is not selected in multi-function inputs 1 to 8 (C001 to C008), the gain setting conforms to the status in which the signal is turned off. UP/DOWN Function •This function allows you to change the Inverter output frequency using the UP and DWN terminals of the multi-function inputs. 4 Functions Note: Do not turn on/off the UP/DWN terminal after shutting off the power. Otherwise, the Inverter may not store data correctly. •Allocate "27" (UP) and "28" (DWN) to any of multi-function inputs 1 to 8 (C001 to C008). •This function is enabled only when frequency reference selection A001 is set to "01" or "02".
If "01" (terminal) is selected, however, this function is enabled for multi-step speed operation only. •When you use an external analog input as frequency reference input, or when you set the jogging operation frequency, this function is disabled. •While the UP/DWN terminal is turned on, the acceleration/deceleration time depends on F002, F003/F202, F203/F302, and F303. To switch between the 1st/2nd/3rd controls, allocate 08 (SET)/ 17 (SET3) to the desired multi-function input and then turn on/off the SET terminal. •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 a multi-function input and turning on/off the UDC terminal, you can clear or store the frequency reference setting adjusted at UP/DOWN. RUN command (FW, RV) U DW Acceleration/Deceleration does not occur if the UP and DWN terminals turn on simultaneously. Output 4-87 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.
Available input terminals C001 to C008 Parameter No. Data Description C101 00 Does not store the frequency reference adjusted at UP/DWN. After restoring the power, returns to the value set before UP/DWN adjustment. 01 Stores the frequency reference adjusted at UP/DWN. After restoring the power, maintains the set value after UP/DWN adjustment.