Tuning Constants: C - YASKAWA CIMR-MC5A20P4 Instruction Manual

7.3.2 Tuning Constants: C

S-curve Characteristic Function: C2-01 to C2-04
J
Using the S-curve characteristic function for acceleration and deceleration can reduce shock to the ma-
D
chinery when stopping and starting.
With the Inverter, S-curve characteristic times can be set respectively for beginning acceleration, end-
D
ing acceleration, beginning deceleration, and ending deceleration.
User User
Constant
Number
C2-01
C2-02
C2-03
C2-04
The relation between these constants is shown in Figure 7.11.
D
Run command
Output
frequency
Fig
When the S-curve characteristic time is set, the acceleration and deceleration times will be lengthened
D
as follows:
Acceleration time =
Selected acceleration time + (S-curve at beginning of acceleration + S-curve at end of acceleration)
/ 2
Deceleration time =
Selected deceleration time + (S-curve at beginning of deceleration + S-curve at end of decelera-
tion) / 2
Change
during during
Name
Opera-
tion
S-curve characteristic
time at acceleration start
S-curve characteristic
time at acceleration end
S-curve characteristic
time at deceleration start
S-curve characteristic
time at deceleration end
ON
C2-02
C2-01
Setting S-curve Characteristics
7.11
- 21
Setting Setting Factory Factory
Unit
Open Loop
Range Setting
0.00 to 2.50 s 0.20
0.00 to 2.50 s 0.20
0.00 to 2.50 s 0.20
0.00 to 2.50 s 0.00
OFF
C2-03
7.3 C ommon Functions
Valid Access Levels
Flux Vector
Vector
A A
A A
A A
A A
C2-04
Time
7