270
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.
(Refer to page 260.)
Check point
--------------
Corrective action
Press
for 2s to release lock.
Operation Panel
Indication
Er1
Name
Write disable error
Description
1. You attempted to make parameter setting when
Pr. 77 Parameter write selection
has been set to disable
parameter write.
2. Frequency jump setting range overlapped.
3. Adjustable 5 points V/F settings overlapped
4. The PU and inverter cannot make normal communication
Check point
1. Check the setting of
Pr. 77 Parameter write selection (Refer to
page 172.)
2. Check the settings of
Pr. 31 to 36 (frequency jump). (Refer to
page 77.)
3. Check the settings of
Pr. 100 to Pr. 109 (Adjustable 5 points V/F)
.
(Refer to
page 81.)
4. Check the connection of the 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
1. Check the
Pr. 77
setting.
(Refer to
page 172.)
2. Check that the inverter is not operating.
Corrective action
1. Set "2" in
Pr. 77
.
2. 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 162.)
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
1. Check that operation mode is "PU operation mode".
2. Check the
Pr. 77
setting.
(Refer to
page 172.)
3. Check the
Pr. 551
setting.
Corrective action
1. After setting the operation mode to the "PU operation mode", make parameter setting.
(Refer to page
172.)
2. After setting "2" in
Pr. 77
, make parameter setting.
3. Set
Pr.551
= "2 (initial setting)".
(Refer to
page 184.)
Operation Panel
Indication
rE1
Name
Parameter read error
Description
An error occurred in the EEPROM on the operation panel side during parameter copy reading.
Check point
--------------
Corrective action
· Make parameter copy again.
(Refer to page 263.)
· Check for an operation panel (FR-DU07) failure. Please contact your sales representative.
Summary of Contents for F700
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Page 340: ...331 MEMO ...
