8-9
Section
Acceleration/Deceleration
198
times (i.e., the times taken to go between the initial speed and the target speed)
can be calculated from these settings. Details of these calculations for memory
operation are given below.
8-9-1 Calculation of Basic Acceleration/Deceleration Times
The method for calculating actual acceleration and deceleration times when
performing INDEPENDENT START operation or operation where the comple-
tion code of the positioning sequence is terminating, speed control, or interrupt
feeding is given below.
The actual acceleration time T
1
, and actual deceleration time T
2
are determined
according to the following equations.
Actual acceleration time, T
1
= (V
1
-- V
0
)/(V
MAX
-- V
0
)
×
Ta
Actual deceleration time, T
2
= (V
1
-- V
0
)/(V
MAX
-- V
0
)
×
Td
•
The following axis parameter settings are used:
•
Maximum speed, V
MAX
(pps)
•
Initial speed, V
0
(pps)
•
The following data, specified by data number in the positioning sequence, is
used:
•
Position
•
Speed, V
1
(pps)
•
Acceleration time, Ta (ms)
•
Deceleration time, Td (ms)
Speed
Maximum speed
V
MAX
specified with
parameters
Speed V
1
Maximum speed
V
0
specified with
parameters
Actual
acceleration
time T
1
Actual
deceleration
time T
2
Time
Acceleration
time Ta
Deceleration
time Td
Note
If override is enabled (i.e., the Override Enable Bit is ON), the speed will be as
follows:
Speed designation = Positioning sequence’s speed setting
×
Operating data
area’s override setting
÷
100.
8-9-2 Calculation of Acceleration/Deceleration Times for Continuous
Positioning
The method for calculating actual acceleration and deceleration times when
performing continuous operation where the completion codes of the positioning
sequences are set to continuous is given below.
Summary of Contents for CS1W-NC113 - REV 02-2008
Page 1: ...CS1W NC113 213 413 133 233 433 Position Control Units ...
Page 2: ...iv ...
Page 4: ...vi ...
