Yaskawa MP940 Reference Manual - Manual (Page 208)

Parameter Setting MotionSuite™ MP940 Machine Controller Reference Manual
6-8
Saving Parameters
Select File > Save in the Parameters menu.
Click the Yes button in the message box.
Click Y in the message box.
Modified parameters cannot be saved if bit 1 (during servo drive operation)
of the current value is ON in parameter No. 2 Servo drive operation
command on the Setup Parameter tab. The save operation is possible after
setting bit 1 to OFF.
The fixed parameters for all servo axes whose numbers are currently
displayed, are saved upon executing the save function. The error detection
message box is displayed if the save fails. Remove the cause of the error and
repeat the save operation after referring to the Error Message List.