Mitsubishi Electronics FR-V500 instruction manual

Easy gain tuning

4.5.5Easy gain tuning-related parameter operation

Refer to the following table for the param eter/gain read/write operation using Pr. 819 "easy gain tuning selection".

		Pr. 819=0	Pr. 819=1	Pr. 819=2
			With inertia estimation, with gain	Inertia as set in Pr. 880, with gain
		Without tuning
			calculation	calculation
	Read	Setting is	Inertia estimation result is	Setting is displayed.
		displayed.	displayed from the RAM.
Pr. 880
			Load inertia estimation result is
"load inertia"		Setting can be
	Write		written. (Write is enabled only	Setting can be changed.
		changed.
			during a stop.)
			•Every hour after power-on
Timing of writing load			•When the Pr. 819 setting is	When the Pr. 819 setting is
			changed to other than "1".	changed to "2"
inertia ratio and control	—	Not written	•When the vector control mode is	When Pr. 880 "load ineritia ratio" or
gains into E2PROM			changed to other drive systems	Pr. 818 "easy gain tuning response
			due to the Pr. 800 "control system	level setting" is changed
			selection" setting change.
Control gains	Read	Settings are	Gain calculation results (RAM) are	Settings are displayed.
		displayed.	displayed.
(Pr. 820, Pr. 821,
		Settings can be
Pr. 828, Pr. 422)	Write		Write disabled (operation error)	Write disabled (operation error)
		changed.

CAUTION

RAM data is erased when the power is not supplied or the inverter is reset.

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