Mitsubishi MELSEC-Q Series User Manual page 212

11
AUXILIARY FUNCTION
(2) Calculation example of "5.Acceleration" and "9.Actual ACC/DEC time"
"
Pr.4
Pulse unit
V
6)" Actual acceleration
(When 5) is rounded up)
Speed
at start
9)" Actual ACC/DEC time
9)' Actual ACC/DEC time (When 5) is rounded off)
11
- 14 11.6 ACC/DEC Process Function
11.6.1 Calculating the actual ACC/DEC time
Calculating formula for "5. Acceleration" is shown below.
(1) Target speed
5) Acceleration
3) ACC/DEC time
* Pulse unit changes according to the value set to "4. Speed limit value (
1 to 8000
Speed limit value"
1-pulse unit
"6. Actual acceleration" is a value rounds "5. Acceleration" to the nearest whole
*
number .
Therefore, "9. Actual ACC/DEC time" and "3. ACC/DEC time" may differ as shown
below.
* However, if "5. Acceleration" is less than 1, "6. Actual acceleration" is rounded up to 1.
6)' Actual acceleration
(When 5) is rounded off)
5) acceleration
9)"
(When 5) is rounded up)
3) ACC/DEC time
2) Speed at start)
Pulse unit*
8001 to 32000
4-pulse unit
3) 9)' 3)
8
)" as the table below.
Pr.4
32001 to 64000 64001 to 100000
8-pulse unit 25-pulse unit
Target speed
t