Hitachi SJ-FB manual Data setting related to speed control

Chapter 7 FUNCTIONS

7.1.2 Data setting

Data setting related to speed control

Setting item	Function code	Setting Range, Setting Contents
Orientation speed setting (Note 1)	P015	0.00∼99.99 / 100.0∼120.0 (Hz)
Orientation direction setting (Note 2)	P016	0:Forward / 1:Reverse

(Note 1) : In order to stop the motor for setting position. (Motor takes 2 rotation to stop setting position)Don’t set high frequency to the orientation speed setting. Otherwise it will be over-voltage protection trip.

(Note 2) : Turn direction of the motor while orientation is done based on the setting of P016. Data setting related to position control

Setting item	Function	Setting range, setting contents
	code
Orientation stop position(Note 3)	P014	0. ∼4095.
Completion range setting	P017	0∼9999. / 1000 (10,000) (pulses)
		(Setting four times fairly of the encoder pulses)
Completion delay time (Note 4)	P018	0.00∼9.99
Position loop gain(Note 5)	P023	0.00∼99.99 / 100.0 (rad/s)

(Note 3) : The orientation stop position is to be set as 4096 of division (0∼4095) per 1 turn toward

	forward from the original point. (It is 4096 division irrespective of the pulse number
	of the encoder.) The original point is where the pulse has input to EZP-EZN.
	Stoppage goal position is like shown in Figure 7-2 irrespective of the turn direction.
(Note 4)	: It depends on what type of main body combines with the SJ-FB, the setting value
	conversion is different. Please refer to the (Note 3) of the “5.3 Items regarding the
	feed back board of the inverter main body“.
(Note 5)	: To improve the positioning accuracy.	Increase position loop gain (G).
	When the motor is unstable.	Decrease position loop gain.

Z pulse Position

(Reference point) 0

Motor Shaft viewed from the load side

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Figure 7-2 Concept of Orientation setting Position

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