Hitachi NB616X instruction manual Outline of SJ-FB

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

M

EC

NOTE: Not vector control (ACR control)

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