Causes And Corrective Actions - Mitsubishi Electric FR-F 700 EC Instruction Manual

Causes and corrective actions

5.2 Causes and corrective actions

(1) Error Message
A message regarding operational troubles is displayed. Output is not shut off.
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
62
HOLD
Operation panel lock
Operation lock mode is set. Operation other than
Press for 2s to release lock.
Er1
Write disable error
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
1. Check the setting of Pr. 77 Parameter write selection (Refer to
2. Check the settings of Pr. 31 to 36 (frequency jump). (Refer to
3. Check the settings of Pr. 100 to Pr. 109 (Adjustable 5 points V/F). (Refer to
(applied).)
4. Check the connection of the PU and inverter.
Er2
Write error during operation
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.
1. Check the Pr. 77 setting. (Refer to
2. Check that the inverter is not operating.
1. Set "2" in Pr. 77.
2. After stopping operation, make parameter setting.
Er3
Calibration error
Analog input bias and gain calibration values are too close.
Check the settings of C3, C4, C6 and C7 (calibration functions). (Refer to
Er4
Mode designation error
You attempted to make parameter setting in the NET operation mode when Pr. 77 is not "2".
1. Check that operation mode is "PU operation mode".
2. Check the Pr. 77 setting. (Refer to
1. After setting the operation mode to the "PU operation mode", make parameter setting. (Refer to page
56.)
2. After setting "2" in Pr. 77, make parameter setting.
rE1
Parameter read error
An error occurred in the EEPROM on the operation panel side during parameter copy reading.
· Make parameter copy again. (Refer to page 59.)
· Check for an operation panel (FR-DU07) failure. Please contact your sales representative.
is made invalid. (Refer to page 30.)
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Instruction Manual (applied).)
Instruction Manual (applied).)
Instruction Manual (applied).)
Instruction Manual (applied).)
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Instruction Manual
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