MITSUBISHI ELECTRIC FR-S520E - Manual (Page 178)

168
Errors (Alarms)
(4) Write errors
Operation Panel Indication Er1 FR-PU04 Control Mode
Name Write disable error
Description
• 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.
Corrective action
• Check the setting of Pr. 77 "parameter write disable selection".
(Refer to page 112.)
• Check the settings of Pr. 31 to 36 (frequency jump). (Refer to
page 84.)
• 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.
Operation Panel Indication Er2 FR-PU04
In PU/EXT Mode
OPERATOR ERR
Name Write-while-running error/mode designation error
Description
• 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.
Corrective action
• After stopping operation, make parameter setting.
• After setting the operation mode to the "PU operation mode",
make parameter setting. (Refer to page 113.)
Operation Panel Indication Er3 FR-PU04 Incr I/P
Name Calibration error
Description Analog input bias and gain calibration values are too close.
Corrective action
Check the settings of C3, C4, C6 and C7 (calibration functions).
(Refer to page 86.)