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VFD68 Variable Frequency Drives
61
Causes and Corrective Actions For Each Error Message
When a message regarding operational troubles is displayed, output is not shut off.
Table 38: Operation Panel Lock
Operation
Panel
Indication
HOLD
Description
Operation lock mode is set. Operation other than
is invalid.
Check Point
--------------
Corrective
Action
Press
for 2s to release lock.
Table 39: Password Locked
Operation
Panel
Indication
LOCD
Description
Password function is active. Display and setting of parameter is restricted.
Check point
--------------
Corrective
action
Enter the password in P.297
to unlock the password function before operating.
Table 40: Write Disable Error
Operation
Panel
Indication
Er1
Description
•
You attempted to make parameter setting when P. 77 has been set to disable parameter write.
•
Frequency jump setting range overlapped.
•
The PU and VFD cannot make normal communication.
Check point
•
Check the setting of P. 77.
•
Check the settings of
P. 31 to P. 36.
•
Check the connection of the PU and VFD.
Table 41: Write Error During Operation
Operation
Panel
Indication
Er2
Description
When parameter write was performed during operation with P. 77 set to other than 2
(writing is
enabled independently of operation status in any operation mode) and the SD terminal is connected
to either the STF or STR terminal.
Check Point
•
Check the P. 77 setting.
•
Check that the VFD is not operating.
Corrective
Action
•
Set the value of P. 77 to 2
.
•
After stopping operation, set the parameter.
Table 42: Calibration Error
Operation
Panel
Indication
Er3
Description
Analog input bias and gain calibration settings are too close.
Check Point
Check the settings of C 3, C 4, C 6, and C 7.