29
LT360 Precision Turntable
DLL Programming Manual
■ Class Set (out)
■ Identifier lt_SetAccelFunc
■ Hex Value 0x28
■ Call LT360LIB_CmdValue(Handle, lt_SetAccelFunc, 'n');
■ Parameter Function Number 0..4
Description
This command sets the acceleration function which the LT360 will use
during step or goto commands. The acceleration profile is an important
feature of the LT360 which enables heavy loads to be moved with minimum
disturbance.
The parameter string must contain a numeric value such as '1' with allowable
values from 0..4. There are five acceleration functions numbered 0,1,2,3,4.
The names of these profiles are:
0 - Impulse
1 - Flat
2 - Ramp
3 - Sin2
4 - Sin3
For most typical applications acceleration function 1 - FLAT will provide
excellent performance. Because the LT360 controls the acceleration and
deceleration so precisely, very heavy loads can be rotated with ease.
The 0 - IMPULSE function provides the fastest rise time from zero to con-
stant velocity. However it also greatly reduces the maximum load which the
LT360 can rotate, due to its higher acceleration. The acceleration of this
function is about 10X that of the others.
The graphs on the following page show the velocity and acceleration profile
curves for the five different LT360 functions.
2.13 Set Acceleration Function
To Next Page
Loading...
