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Example: Presetting the rocking function
The present example makes use of the rocking function to show how it is
possible to preset servos via configuration variables. You will be able to per-
form other presettings on the servos by following the same principle.
The rocking function allows you to add to barriers or gates that are
moved using servos a rocking motion during the opening and shutting
procedure, which will impart them a very realistic motion. Whenever a
servo reaches a hold position, it will subsequently perform cyclic damp-
ened oscillations. The rocking motion can be adjusted via the rocking
time and the amplitude of oscillation.
TIP
ADVICES:
Whenever you use the rocking function, the servo will only be able to
go to the hold positions of the first address. It can no longer go to the
hold positions of the second address.
If you set the CV of the rocking amplitude to the values 0 or 127 (mini-
mum and maximum values), the rocking function will not be performed.
In the present example we assume that a servo has been connected to
the »Servo 1« port of the Servo Control.
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On the digital control unit select the function by means of which you
can preset configuration variables.
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Using CV no. 122 preset the first hold position of the servo (hold posi-
tion “red”), giving it the value “40” for instance.
X
Using CV no. 123 preset the second hold position of the servo (hold
position “green”), giving it the value “100” for instance.
X
Using CV no. 125 preset the amplitude of oscillation of the first hold posi-
tion of the servo (hold position “red”), giving it the value “35” for instance.
X
Using CV no. 126 preset the rocking time of the first hold position of
the servo (hold position “red”), giving it the value “90” for instance.
X
Using CV no. 127 preset the amplitude of oscillation of the second hold posi-
tion of the servo (hold position “green”), giving it the value “70” for instance.
X
Using CV no. 128 preset the rocking time of the second hold position of
the servo (hold position “green”), giving it the value “125” for instance.
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Transfer the values so preset to the Servo Control.
The presettings are saved.
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