Mitsubishi MELSEC-Q Series User Manual page 214

11
AUXILIARY FUNCTION
1) Target
2) Speed
3) ACC/DEC
time
9) Actual ACC/DEC time
Control contents
OPR control
Positioning control
JOG operation
11
- 16 11.6 ACC/DEC Process Function
11.6.1 Calculating the actual ACC/DEC time
[Calculation example 2: "9. Actual ACC/DEC time" is shorter than "3. ACC/DEC time"]
V
speed
at start
When "1. Target speed" is 100000pps, "2. Speed at start" is 100pps, "3. ACC/DEC
time" is 1000ms and pulse unit is 25 ("4. Speed limit value (
Actual ACC/DEC time" is calculated by the following formula.
(1) Target speed
5) Acceleration
3) ACC/DEC time
6) Actual acceleration = 32
7) Difference (difference between
acceleration and actual acceleration
when using acceleration as the base.)
8) Actual ACC/DEC time
Set "speed at start", "target speed", and "ACC/DEC time" to each control individually.
(For details, refer to "CHAPTER 4 DATA USED FOR POSITIONING CONTROL".)
Parameter set as "target
OPR speed
Pr.13 Pr.10
Command speed
Da.4
JOG speed
JOG.1
2) Speed at start)
Pulse unit*
5) Acceleration
6) Actual acceleration
31.968 32
32
0.1( )
7) Difference
3) ACC/DEC time
100
0.1
1000 1000
100
999 (ms)
Parameter set as "speed
speed"
Creep speed
Pr.14
Bias speed at start
Pr.5
Bias speed at start
Pr.5
3) ACC/DEC
time
9) Actual ACC/DEC time
) is 100000pps), "9.
Pr.4
8 (100000 100) 8
1000 25
6) Actual acceleration
100
100
3) ACC/DEC time
Parameter set as "ACC/
at start" DEC time"
ACC/DEC time at
Pr.15
OPR
ACC/DEC time
Da.3
JOG ACC/DEC time
JOG.2
t
31.968