254
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.
162.)
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.
Speed jump setting range overlapped.
The PU and drive unit cannot make normal communication.
Check point
Check the setting of
Pr. 77 Parameter write selection
.
Check the settings of
Pr. 31 to Pr. 36 (speed jump)
.
Check the connection of the PU and drive unit.
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 operation status in any operation mode) is set in
Pr. 77
and the STF (STR) is ON.
Check point
Check the
Pr. 77
setting.
Check that the drive unit 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)
.
Operation panel
indication
Er4
Name
Mode designation error
Description
Appears if a parameter setting is attempted in the External or NET operation mode with
Pr. 77
"2".
Appears if a parameter setting is attempted when the command source is not at the operation panel.
Check point
Check that operation mode is PU operation mode.
Check the
Pr. 77
setting.
Check if a parameter unit (FR-PU07) is connected when
Pr. 551
= "9999 (initial setting)."
Check the
Pr. 551
setting.
Corrective action
After setting the operation mode to the "PU operation mode", make parameter setting.
After setting
Pr. 77
= "2", make parameter setting.
Disconnect the parameter unit (FR-PU07), and make parameter setting.
After setting
Pr. 551
= "4", make parameter setting. (
Refer to page 177.)
Summary of Contents for FR-D720-0.2K-G
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