Mitsubishi Electric FR-S500E Instruction Manual page 172

Errors (Alarms)
(4) Write errors
Operation Panel Indication
Name
Description
Corrective action
Operation Panel Indication
Name
Description
Corrective action
Operation Panel Indication
Name
Description
Corrective action
Er1
Write disable error
• Write was performed with "1" (write disable) set in Pr. 77
"parameter write disable selection".
• Frequency jump setting range overlapped.
• Parameter write was performed though the operation panel does
not have the write precedence.
• Check the setting of Pr. 77 "parameter write disable selection".
(Refer to page 106.)
• Check the settings of Pr. 31 to 36 (frequency jump). (Refer to
page 78.)
• When the FR-PU04 is fitted and n17 = "0" or "1", the operation of
the operation panel is invalid.
For RS-485 connector (RS-485) communication, the operation of
the operation panel is invalid.
Er2
Write-while-running error/mode designation error
• Write was performed during operation.
• An attempt was made to change the Pr. 79 setting to the
operation mode where the operation command has been input.
• Write was performed in the external operation mode.
• After stopping operation, make parameter setting.
• After setting the operation mode to the "PU operation mode",
make parameter setting. (Refer to page 107.)
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 page 80.)
162
FR-PU04 Control Mode
In PU/EXT Mode
FR-PU04
OPERATOR ERR
FR-PU04 Incr I/P