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Operation Selection Function Parameters
3.6.5 Parameter write disable selection (Pr. 77)
<Setting>
You can select between write-enable and disable for parameters. This function
is used to prevent parameter values from being rewritten by incorrect operation.
Parame
ter
Name
Factory
Setting
Setting
Range
77
Parameter write disable
selection
00, 1, 2
Pr. 77 Setting Function
0
Parameter values may only be written during a stop in the PU operation
mode.*
1
• Write disabled.
(Values of Pr. 22, Pr. 75, Pr. 77 and Pr. 79 can be written.)
• Parameter clear and all parameter clear are also inhibited.
2
• Write enabled even during operation.
(Values of Pr. 17, Pr. 60 to Pr. 65, Pr. 71, Pr. 79, Pr. 505, Pr. 506 and Pr.
507 cannot be written during operation. These values can be changed only
during a stop.)
• Write enabled regardless of the operation mode.
CAUTION
•*The parameters * screened in the parameter list can be set at any time. Note
that the Pr. 72 value may be changed during PU operation only.
REMARKS
The user parameters (Pr. 510 to Pr. 529) can be set any time independently of Pr. 77.