Selec ATSEL FD300 User Manual Download Page 81

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Figure 6-34 Schematic diagram of curve 4 and curve 5

Note that when setting curve 4 and curve 5, the minimum input voltage of

the curve, the inflection point 1 voltage, the inflection point 2 voltage, and the
maximum voltage must be increased in turn. AI curve selection F4-33 is used
to determine how the analog inputs AI1~AI3 are selected among the 5 curves.

A6-24

AI1 sets the jump point

-100.0%

〜

100.0%

Default

：

0.0%

AI1 sets the jump range

0.0%

〜

100.0%

Default

：

0.5%

AI2 sets the jump point

-100.0%

〜

100.0%

Default

：

0.0%

AI2 sets the jump range

0.0%

〜

100.0%

Default

：

0.5%

AI3 sets the jump point

-100.0%

〜

100.0%

Default

：

0.0%

AI3 sets the jump range

0.0%

〜

100.0%

Default

：

0.5%

A6-25

A6-26

A6-27

A6-28

A6-29

The inverter analog input AI1~AI3 has the set value jump function. The

jump function is to fix the analog amount corresponding set value to the value
of the jump point when the analog amount is set to change in the upper and
lower sections of the jump point.
E.g.: The voltage of analog input AI1 fluctuates around 5.00V, the fluctuation
range is 4.90V~5.10V, the minimum input of AI1 is 0.00V corresponding to
0.0%, and the maximum input of 10.00V corresponds to 100%, then the
detected AI1 is set at. Fluctuations between 49.0%~51.0%.

Set AI1 to set jump point A6-24 to 50.0%, and set AI1 to set jump width A6-

25 to 1.0%. When AI1 is input, after hopping function processing, the
corresponding AI1 input corresponding setting is fixed to 50.0%. AI1 is
transformed into a stable input that eliminates fluctuations.

AC: AIAO Correction

AI1 measured voltage 1

-10.00V

〜

+10.00V

factory reset

AI1 display voltage 1

0.500V

〜

4.000V

AI1 measured voltage 2

6.000V

〜

9.999V

AI1 display voltage 2

6.000V

〜

9.999V

AI2 measured voltage 1

0.500V

〜

4.000V

AI2 display voltage 1

0.500V

〜

4.000V

AI2 measured voltage 2

6.000V

〜

9.999V

AI2 display voltage 2

6.000V

〜

9.999V

AI3 measured voltage 1

-9.999V

〜

10.000V

AI3 display voltage 1

-9.999V

〜

10.000V

AI3 measured voltage 2

-9.999V

〜

10.000V

AI3 display voltage 2

-9.999V

〜

10.000V

AC-00

factory reset

AC-01

AC-02

AC-03

AC-04

AC-05

AC-06

AC-07

AC-08

AC-09

AC-10

AC-11

factory reset

This set of function codes is used to correct the analog input AI to

eliminate the effects of zero offset and gain on the AI input. The function
parameters of this group have been corrected at the factory. When the
default is restored, it will be restored to the factory-corrected value. Generally
no correction is required at the application site.

The measured voltage refers to the actual voltage measured by a

measuring instrument such as a multi-meter. The display voltage refers to
the voltage display value sampled by the inverter. See the U0 group AI
correction voltage (U0-21, U0-22 and U0-23) display.

For the case where the user's given voltage does not match the actual

sampling voltage of the inverter, the field calibration method can be used to
make the sampling value of the inverter consistent with the expected set
value. Take AI1 as an example. The field calibration method is as follows:
Given AI1 voltage signal (about 2V)

During calibration, input two voltage values for each AI input port, and

respectively input the value measured by the multi-meter and the value read
by the U0 group into the above function code, the inverter will automatically
perform the zero offset of the AI. Correction of the gain.

Actual measurement of AI1 voltage value, stored in function parameter

AC-00 View U0-21 display value, stored in function parameter AC-01;

Analog input

Corresponding setting

analog input

Corresponding setting

amount

AI maximum input

Corresponding setting

AI curve infection point 1

Corresponding setting

OV (0mA)