6-14
LED
Data Factory Customer
Display Setting Description Setting Setting
*F_35 0.00 GAIN FOR FREQUENCY SETTING SIGNAL 100.0%
to This sets the size (gradient) of the output frequency
250 corresponding to the analog frequency setting as a
percentage of the maximum frequency.
[Example: for 70% gain] [Example for 200% gain]
*The gain setting is only active when F_01 = 1
Example:
If the bias frequency function (F_34) and the gain for
frequency setting signal function (F_35) are used together,
the gain for frequency setting signal has priority, and the
bias is applied to the frequency with gain already applied.
The bias frequency fbias and setting frequency gain at
this time can be calculated by the following formulas.
f1 – f2
fbias = f1 – x V1
V1 – V2
1000 x (f1 – f2)
Gain =
100 x (V1 – V2) + f1 x V2 – f2 x V1
Example:
If the analog frequency setting voltage is 1 to 5Vdc
and the output frequency is weighted to 0 to 100% then:
(V1, f1) = ( 1, 0) , (V2, f2) = ( 5,100), so that
[V] [%] [V] [%]
fbias = –25% and gain = 200%