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E6581090
D-2
4
4.1 How to set parameters
The standard default parameters are programmed before the unit is shipped from the factory.
Parameters can be divided into three major categories. Select the parameter to be changed or to be
searched and retrieved.
Setup parameters : Parameters necessary for specifying a logic for control input signals
and a base frequency for the motor when turning on the inverter for
the first time.
This parameter setting is needed only for the VFNC1 (S)-□□□□P‐W.
Basic parameters : Parameters necessary for operating the inverter.
Extended parameters : Parameters necessary for using various extended functions.
Special parameters :
Parameters necessary for using special functions. Three special
parameters are included in the basic parameters of the VF-nC1.
Setting monitor mode
★Adjustment range of parameters
JK:An attempt has been made to assign a value that is higher than the programmable range. Or,
as a result of changing other parameters, the programmed value of the parameter that is now
selected exceeds the upper limit.
NQ:An attempt has been made to assign a value that is lower than the programmable range. Or,
as a result of changing other parameters, the programmed value of the parameter that is now
selected exceeds the lower limit.
If the above alarm is flashing on and off, no setting can be done of values that are equal to or greater
than JK or equal to or lower than NQ.
While these codes are flashing on and off, no change can be made to any parameter.
*1: Three special parameters
CWH :Calls up only functions necessary to meet the user’s needs and, sets up the inverter.
CWJ : Displays the five parameters changed last in reverse order of change. This parameter comes
in very handy when readjusting inverter, using the same parameters.
ITW: Displays parameters whose settings are different from the factory default settings. Use this
parameter to check settings you made or you want to change.