Check first when you have troubles
Troubleshooting
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7.6.13
Unable to write parameter setting
Check points Possible Cause
Countermeasures
Refer to
Page
Input signal
Operation is being performed (signal STF
or STR is ON).
Stop the operation.
When Pr. 77 = "0" (initial value), write is
enabled only during a stop.
Parameter
Setting
You are attempting to set the parameter in
the External operation mode.
Choose the PU operation mode.
Or, set Pr. 77 = "2" to enable parameter
write regardless of the operation mode.
Parameter is disabled by the Pr. 77
"Parameter write selection" setting.
Check Pr. 77 "Parameter write selection"
setting.
Key lock is activated by the Pr. 161 "Fre-
quency setting/key lock operation selec-
tion" setting.
Check Pr. 161 "Frequency setting/key lock
operation selection" setting.
Operation mode and a writing device do
not correspond.
Check Pr. 79, Pr. 338, Pr. 339 and Pr. 551,
and select an operation mode suitable for
the purpose.
Summary of Contents for FR-D720S SC EC
Page 2: ......
Page 4: ......
Page 24: ...Description of the case Product checking and part identification 1 4 ...
Page 108: ...Operation panel Operation 4 20 ...
Page 436: ...Setting for the parameter unit and operation panel Parameter 6 286 ...
Page 484: ...Measurements on the main circuit Maintenance and inspection 8 14 ...
Page 504: ...Specification change Appendix A 20 ...
Page 505: ......
Page 506: ......
Page 510: ...Index Appendix A 24 ...
Page 511: ......