S curve Acc/Dec mode can smooth acceleration
and deceleration, suitable for application like lift,
conveyer belt.
Acc time is the time taken for the motor to
accelerate from 0Hz to the maximum frequency (as
set in A0.08), see t
2
in Fig.6-12. Dec time is the time
taken for the motor to decelerate from maximum
frequency (A0.08) to 0Hz, see t
2
in Fig.6-12.
CV100 define three kinds of Acc/Dec time, and the
drive’s Acc/Dec time 1~4 can be selected by
different combinations of control terminals, refer to
the introductions of A6.00~A6.04 for the definitions
of terminals used to select Acc/Dec time.
A4.07 S curve
acceleration starting
time
10.0%~50.0% (Acc time)
A4.07+ A4.08≤90【20.0%】
A4.08 S curve
acceleration ending time
10.0%~70.0% (Acc time)
A4.07+ A4.08≤90【20.0%】
A4.09 S curve
deceleration starting
time
10.0%~50.0% (Dec time)
A4.09+ A4.10≤90【20.0%】
A4.10 S curve
deceleration ending time
10.0%~70.0% (Dec time)
A4.09+ A4.10≤90【20.0%】
A4.07~A4.10 is only valid when A4.00 is set as 1 (S
curve Acc/Dec mode),and it must make sure
A4.07+A4.08≤90%, A4.09+ A4.10≤90%,as shown
in Fig.6-14.
Fig.6-14 Acc/Dec starting time and ending time
A4.22 Switch frequency
for Acc/Dec time 1 and
Acc/Dec time 2.
It will use Acc/Dec time 2 when output frequency is
lower than A4.22.
A5.00 Speed/Torque
control mode
0:Speed control mode
1:Torque control mode
A5.07 ASR1/2 switching
frequency
The parameters A5.00 ~ A5.07 are only valid for
vector control mode.
Under vector control mode,it can change the speed
response character of vector control through
adjusting the proportional gain P and integral time I
for speed regulator.
1.The structure of speed regulator (ASR) is shown
in Fig.6-13.In the figure, K
P
is proportional gain P. T
I
is integral time I.
Fig.6-13 Speed regulator
When integral time is set to 0 (A5.02=0,A5.05=0),
then the integral is invalid and the speed loop is just
aproportional regulator.
2. Tuning of proportional gain P and integral time I
for speed regulator(ASR).