Delta AS Series Programming Manual page 1191

AS Ser ies Pro gra mm in g M anu al
3.
Ramp-up and ramp-down for fixed slopes
a)
The following graph shows the Y0.0 output curve diagram.
b)
Start the fixed slope flag SM469 and write the target frequency of the fixed slope into SR472.
c)
The new slope takes the place of the original slope and the DDRVI instruction performs the positioning as
shown above.
d)
The general slope is determined by the start/end frequency, target frequency, and ramp up and down time.
The fixed slope is determined by the start/end frequency, target frequency of the fixed slope, and ramp up
and down time.
e)
When the target frequency of the fixed slope is less than the target frequency, the fixed slope function is not
_6
started.
4.
Stop flag and immediately stop flag
a)
The following graphic shows the output diagram based on example 1.
6 - 9 1 2
F requency
Fixed slope
Target frequency
Target frequency
Original slope
S tart/end frequency
Ramp-up time
Ramp-down stop
Time
Ramp-down time
Immediately stop