Hitachi NB616X instruction manual Outline of SJ-FB

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Chapter 2 OUTLINE OF SJ-FB

This manual describes the application board SJ-FB for a SJ300 series inverter.

This SJ-FB board, assembled in a SJ300 inverter, detected the rotation speed of a motor with the encoder and feedback the motor speed to suppress speed fluctuations for highly accurate operation. This SJ-FB board can also be used for controlling motor stop positions by entering 90 phase difference pulses, as well as for synchronized operation, orientation function, and external torque limit input function.

Figure 2-1 Function Block Diagram

						Inverter main body
LAC				Inside
				Inside		TH
				setting		TH
	Position	LAD	Speed	Torque	Current	PWM
	control	LAD	control	limiter	control	PWM
	control		control	limiter	control
PCLR
POK				Turn		SJ-FB
POK				several	Position	SJ-FB
ORT	Orientation			detection	Position
ORT	Orientation				detection	EAP,EAN
	control					EBP,EBN
						EZP,EZN
						EP5,EG5
STAT		Speed deviation	Zero speed			AP,AN
		excessive signal	detection			BP,BN
		excessive signal	detection
						SAP,SAN
						SBP,SBN
		DSE	ZS

M

EC

NOTE: Not vector control (ACR control)

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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