Total Time Equations - Advanced Micro Controls Inc. SMD23E2 User Manual

SMD23E2 and SMD24E2 User's Manual
Constant Acceleration Equations (continued)
Continuing the example from table R3.2, assume a total travel distance of 300,000 steps.
D +
A
300,000 steps
300,000 steps
300,000 steps
300,000 steps
300,000 (200,000)

60,000.18
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9
Once you have calculated the maximum speed, you can substitute this value into the time and distance formu-
las in table R3.1 to calculate time spent and distance traveled while accelerating and decelerating.

Total Time Equations

For Trapezoidal Profiles you must first determine the number of counts that you are running at the Pro-
grammed Speed. This value, (D
You can then calculate your total profile time, (T
D = (Total Number of Steps) – (D
P
T = T + T
P A D
For Triangular Profiles, the total time of travel is simply:
T = T + T
P A D
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2 2 2 2
V – V V – V
M S M S
D = ------------------- - + ------------------- -
D
2a 2d
2 2 2
V – 141 V – 141
M M
= ------------------------ - + ------------------------ -
  
2 20,000 2 25,000
2 2
V – 20,000 V –
M M
= ----------------------------- - + ----------------------------- -
40,000 50,000
2
 
V – 20,000
5 4
M
 
-- - ----------------------------- - -- -
= +
 
5 40,000 4
2
5V – 100,000 4V
M
= ----------------------------------- - + -------------------------------- -
200,000
2
= 9V – 180,000
M
6
10 2
= V
M
V = 81,650 steps/sec
M
below), is equal to your D
P
+ D
A
+ D /V
P P
C
ALCULATING
2

20,000
2
 
V – 20,000
M
 
----------------------------- -
 
50,000
2
– 80,000
M
200,000
and D
A D
below), from the second equation.
P
)
D
M
OVE
values subtracted from your total travel.
P
ROFILES
45