Hitachi SJ-FB manual Stat

Chapter 7 FUNCTIONS

(Note 3) : N/D must be given as the ranges of 1/50 ≤ (N/D) ≤ 20.

(N: Electronic gear ratio numerator, D: Electronic gear ratio denominator) (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“.

Data setting of input-output terminals

	Input-output terminal	With terminal assignment	Contents
Input	The pulse train position	Set ‘48’ to one of
	command input		Pulse train position command
	permission signal.	C001∼C008	input is valid while ON.
	(STAT)
Output	Positioning completion	Set ‘23’ to one of	Output when it entered into the
	signal.(POK)	C021∼C025	positioning completion range

Set ‘48’ (the pulse train position command input permission signal (STAT)) to one of C001∼C008. Pulse train position command input is valid only in the case that the STAT terminal is turned ON. In the case that the STAT terminal is OFF or unestablished, pulse train position command input is invalid.

Below the example of the proportion of the slave side turn number to the master side turn number by the setting of P019～P021 is shown. (Yet, the encoder pulse number of the master side and slave side are same and be in the case of 1024 pulses. )

Position selection for electronic gear (P019)								01	01	00 (FB)	00 (FB)
								(REF)	(REF)
Numerator	of	ration		setting	for	electronic	gear	1024	2048	1024	2048
(P020)
Denominator		of	ratio	setting	for	electronic	gear	2048	1024	2048	1024
(P021)
Slave side	turn		number to the master side				turn	1/2	2	2	1/2
number

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