Download  Print this page

Causes And Corrective Actions - Mitsubishi Electric FR-F720P-0.75K Instruction Manual

Fr-f700p series.
Hide thumbs

Advertisement

Causes and corrective actions

6.3 Causes and corrective actions
(1) Error Message
A message regarding operational troubles is displayed. Output is not shut off.
Operation Panel
Indication
Name
Operation panel lock
Description
Operation lock mode is set. Operation other than
Check point
Corrective action
Press
Operation panel
indication
Name
Password locked
Description
Password function is active. Display and setting of parameter is restricted.
Check point
Enter the password in Pr. 297 Password lock/unlock to unlock the password function before operating. (
Corrective action
Chapter 4 of the Instruction Manual (Applied)).
Operation Panel
Indication
Name
Write disable error
· You attempted to make parameter setting when Pr. 77 Parameter write selection has been set to disable
· Frequency jump setting range overlapped.
Description
· Adjustable 5 points V/F settings overlapped.
· The PU and inverter cannot make normal communication.
· Appears if IPM parameter initialization is attempted in the parameter setting mode while Pr.72 = "25."
· Check the setting of Pr. 77 Parameter write selection (
· Check the settings of Pr. 31 to 36 (frequency jump). (
Check point
· Check the settings of Pr. 100 to Pr. 109 (Adjustable 5 points V/F). (
· Check the connection of the PU and inverter.
· Check the Pr.72 PWM frequency selection setting. A sine wave filter cannot be used under IPM motor
Operation Panel
Indication
Name
Write error during operation
When parameter writing was performed during operation with a value other than "2" (writing is enabled
Description
independently of operating status in any operation mode) is set in Pr. 77 and the STF (STR) is ON.
· Check the Pr. 77 setting. (
Check point
· Check that the inverter is not operating.
· Set "2" in Pr. 77.
Corrective action
· After stopping the operation, make parameter setting.
Operation Panel
Indication
Name
Calibration error
Description
Analog input bias and gain calibration values are too close.
Check the settings of C3, C4, C6 and C7 (calibration functions). (
Check point
Manual (Applied).)
118
HOLD
for 2s to release lock.
LOCd
Er1
parameter writing.
(Applied).)
(Applied).)
Manual (Applied).)
control.
Er2
Er3
is invalid. (Refer to page 49.)
--- ------ -----
--- --- ---- --- -
Refer to Chapter 4 of the Instruction Manual
Refer to Chapter 4 of the Instruction Manual
Refer to Chapter 4 of the Instruction Manual (Applied).)
Refer to
Refer to Chapter 4 of the Instruction
Refer to Chapter 4 of the Instruction

Advertisement

Table of Contents

   Also See for Mitsubishi Electric FR-F720P-0.75K

Comments to this Manuals

Symbols: 0
Latest comments: