Mitsubishi Electronics FR-S500 instruction manual Write errors

Errors (Alarms)

(4) Write errors

Operation Panel Indication	Er1		FR-PU04	Control Mode
Name	Write disable	error

	• Write was performed with "1" (write disable) set in Pr. 77
Description	"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 108.)
	• Check the settings of Pr. 31 to 36 (frequency jump). (Refer to
Corrective action	page 80.)
	• 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
	• Write was performed during operation.
Description	• 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.

Corrective action • After setting the operation mode to the "PU operation mode",

make parameter setting. (Refer to page 109.)

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 82.)

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