334
Causes and corrective actions
5.3 Causes and corrective actions
(1) Error Message
A message regarding operational troubles is displayed. Output is not shut off.
Operation Panel
Indication
HOLD
Name
Operation panel lock
Description
Operation lock mode is set. Operation other than
is invalid.
Check point
--------------
Corrective action
Press
for 2s to release lock.
Operation panel
indication
LOCD
Name
Password locked
Description
Password function is active. Display and setting of parameter is restricted.
Check point
--------------
Corrective action
Enter the password in
Pr. 297 Password lock/unlock
to unlock the password function before operating.
...
Specifications differ according to the date assembled.
to check the SERIAL number.
Operation Panel
Indication
Er1
Name
Write disable error
Description
⋅
You attempted to make parameter setting when
Pr. 77 Parameter write selection
has been set to disable
parameter write.
⋅
Frequency jump setting range overlapped.
⋅
Adjustable 5 points V/F settings overlapped
⋅
PU and inverter cannot make normal communication
Check point
⋅
Check the setting of
Pr. 77 Parameter write selection (Refer to page 191.)
⋅
Check the settings of
Pr. 31 to 36 (frequency jump). (Refer to page 88.)
⋅
Check the settings of
Pr. 100 to Pr. 109 (Adjustable 5 points V/F)
.
(Refer to page 92.)
⋅
Check the connection of PU and inverter.
Operation Panel
Indication
Er2
Name
Write error during operation
Description
When parameter write was performed during operation with a value other than "2" (writing is enabled
independently of operating status in any operation mode) is set in
Pr. 77
and the STF (STR) is ON.
Check point
⋅
Check the
Pr. 77
setting.
(Refer to page 191.)
⋅
Check that the inverter is not operating.
Corrective action
⋅
Set "2" in
Pr. 77
.
⋅
After stopping operation, make parameter setting.
Operation Panel
Indication
Er3
Name
Calibration error
Description
Analog input bias and gain calibration values are too close.
Check point
Check the settings of C3, C4, C6 and C7 (calibration functions).
(Refer to page 179.)
Operation Panel
Indication
Er4
Name
Mode designation error
Description
⋅
You attempted to make parameter setting in the NET operation mode when
Pr. 77
is not "2".
⋅
If a parameter write was performed when the command source is not at the operation panel (FR-
DU07).
Check point
⋅
Check that operation mode is "PU operation mode".
⋅
Check the
Pr. 77
setting.
(Refer to page 191.)
⋅
Check the
Pr. 551
setting.
Corrective action
⋅
After setting the operation mode to the "PU operation mode", make parameter setting.
(Refer to page 191.)
⋅
After setting "2" in
Pr. 77
, make parameter setting.
⋅
Set
Pr.551
= "2 (initial setting)".
(Refer to page 206.)
Summary of Contents for -NAFR-F720-00167-NA
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