Instruction manual

110
PARAMETERS
4.2.31 Parameter write disable selection (Pr. 77)
Pr. 77 "parameter write disable selection"
You can select between write-enable and disable for parameters. This function is used
to prevent parameter values from being rewritten by incorrect operation.
<Setting>
Parameter Number Factory Setting Setting Range
77 0 0, 1, 2
Pr. 77
Setting
Function
0
Parameter values may only be written during a stop in the
PU operation mode. (Note 1)
1
Write disabled. (Note 2)
Values of Pr. 22, Pr. 75, Pr. 77 and Pr. 79 "operation
mode selection" can be written.
2
Write enabled even during operation. (Note 3)
Setting is enabled independently of the operation mode.
Note:1. The shaded parameters in the parameter list (page 62) can be set at any
time.
2. By setting "1" in Pr. 77, the following clear operations can be inhibited:
• Parameter clear
• Parameter all clear
3. If Pr. 77 = 2, the values of Pr. 23, Pr. 66, Pr. 71, Pr. 79, Pr. 80, Pr. 83, Pr. 84,
Pr. 96, Pr. 180 to Pr.183 and Pr. 190 to Pr. 192 cannot be written during
operation. Stop operation when changing their parameter settings.
Pr. 79 "operation mode selection"
Related parameters
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