Hitachi NB616X instruction manual Set Motor constant J bigger and bigger H024/H034

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Chapter 6 OPERATION

(Note 6) : If satisfactory performance can not be obtained, please adjust the motor constant for the phenomena according to following table.

Status	of	Phenomena			Contents of adjustment	Adjusting
running		Phenomena			Contents of adjustment	parameter
running						parameter
At starting		The	shock	is	Set “Motor constant J” bigger and bigger	H024/H034
		occurred at starting			slowly until 1.2 times for preset constant.
At		Unstable	of	motor	Set speed response smaller.	H005
At		Unstable	of	motor	Set “Motor constant J” smaller for preset
deceleration		rotation			Set “Motor constant J” smaller for preset	H024/H034
deceleration		rotation			Constant.	H024/H034
					Constant.
During		Insufficient		torque	Set overload restriction level lower than torque	b021
torque limit		during torque limit at			limit level	b041-b044
		low speed
At low					Set “Motor constant J” bigger for preset
frequency		Irregular of rotation			Set “Motor constant J” bigger for preset	H024/H034
operation					constant.
operation

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Contents SJ-FB Feed-Back Board Safety Definitions and SymbolsRevision History Table Page Page Contents Inquiry and Warranty of the Unit Warranty of the unitInspection upon packing Request upon inquiryOutline of SJ-FB How to Mount the option Board Terminal assignment of the Option Board Outlook of SJ-FBFunction Explanation of the Terminal SAPTerminal connection diagram DSEIf they Position of the setting switch Feed-back board initial settingMotor Setting 21 position of specification Setting flowchart of the switch on the board Switch setting flowchartOperation Set Motor constant J bigger and bigger H024/H034 Orientation function Function outlineFunctions When the motor is unstable Decrease position loop gain Data settingData setting related to speed control Control mode setting Data setting of the input-output terminalSpeed control ASR Position control APR Electronic gear functionWiring for Synchronized Operation Data setting related to position controlPositioning completion Set ‘23’ to one Control block diagram of the electron gear function Forward pulse train + Reversion pulse train mode Pulse train mode selectionForward/Reverse command + pulse train mode Speed control P/PI switching function Speed control mode is normally controlled by proportionalResistor vs. Temperature Curves Action selection in case of option error Cause and countermeasure of the option errorProduct specification