Hitachi SJ-DG Timing AT TWO Dividing Data Input, Timing chart of two dividing data input

CHAPTER 5 FUNCTION

5.3.2 TIMING AT TWO DIVIDING DATA INPUT

Take in data in on-edge of strove signal. Let on/off time of strobe signal be more than 20ms. And let off time of strobe signal be more than 20ms,

Data definite

period

Data definite

period

Data definite

period

Dn	Normal data	Abnormal data	Normal data
(n=0-15)

More than 0ms

More than 0ms

More than 0ms

STRB	ON	ON	ON
OFF	OFF	OFF	OFF

More than	More than	More than
20ms	20ms	20ms

SEQ

(Sequence error output)

OFF

Within 20ms

More than	More than
20ms	20ms
ON

OFF

Within 20ms

At load current 20mA

Figure 5.3.2 Timing chart of two dividing data input

Precaution If Figure 5.3.2 timing chart is not satisfied, be careful because of possibility of taking in error data.

5.4 NOTICE AT DATA INPUT

While inputting the data by terminal of SJ-DG, notice the following items.

(1)Each input is possible to set within data range of the inverter in every setting item. If inputting without data range, sequence error is outputted and data input is invalid (previous data is kept).

(2)If classification code is inputted in dividing input mode, make sure to input classification code in order, higher code, and then lower code. If lower code is inputted at first, sequence error is outputted and data input is invalid (previous data is kept)

(3)Re-input of correct data, or reset of inverter, or power off carries out cancellation of sequence error. And, if two times input are correct in dividing input mode, they are cancelled just after second input.

(4)If a code without codes in table of classification is inputted, sequence error is outputted.

(5)In case of trip of inverter, data input is invalid. Make sure to reset inverter and re-input.

(6)When each command destination of inverter is not set to option board put on, do not input data.

(7)If setting frequency is input in “rate”, do the following process below.

(Example) If 75% of max frequency is set, input I in is

I in = 0.75 × M	0.75 ￿ rate
	M ￿input data full scale
	Switch type 1	Input data full scale value( M )
	BIN	65535

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