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C: Tuning
C parameters are used to adjust the acceleration and deceleration times, S-curves, slip and
torque compensation functions and carrier frequency selections.
No. Name Description Range Def.
Mode
Addr.
Hex
Pg.
V/f
C1: Acceleration and Deceleration Times
Use C1 parameters to configure motor acceleration and deceleration.
C1-01
<22>
Acceleration
Time 1
Sets the time to accelerate from 0 to maximum
frequency.
0.0 to
6000.0
10.0 s
S 200 92
C1-02
<22>
Deceleration
Time 1
Sets the time to decelerate from maximum frequency
to 0.
S 201 92
C1-03
<22>
Acceleration
Time 2
Sets the time to accelerate from 0 to maximum
frequency when Accel/Decel times 2 are selected by
a digital input.
O 202 92
C1-04
<22>
Deceleration
Time 2
Sets the time to decelerate from maximum frequency
to 0 when Accel/Decel times 2 are
selected by a digital
input.
O 203 92
C1-09
Fast-Stop
Time
Sets the time to decelerate from maximum frequency
to 0 for the multi-function input fast-stop function.
Note: This parameter is also used by selecting “Fast-
Stop” as a Stop Method when a fault is detected.
O 208 —
C2: S-Curve Characteristics
Use C2 parameters to configure S-curve operation.
C2-01
S-Curve
Characteristic
at Accel Start
The S-curve can be controlled in the four points shown
below.
Run
command
Output
frequency
Time
C2-01
C2-04
C2-02
C2-03
ON
OFF
S-curve is used to further soften the starting and
stopping ramp. The longer the S-curve time, the softer
the starting and stopping ramp.
0.00 to
10.00
0.20 s O 20B —
C2-02
S-Curve
Characteristic
at Accel End
0.00 to
10.00
0.20 s O 20C —
C2-03
S-Curve
Characteristic
at Decel Start
0.00 to
10.00
0.20 s O 20D —
C2-04
S-Curve
Characteristic
at Decel End
0.00 to
10.00
0.00 s O 20E —
C3: Slip Compensation
Use C3 parameters to configure the slip compensation function.
C3-01
<22>
Slip
Compensation
Gain
Sets the slip compensation gain. Decides for what
amount the output frequency is boosted in order to
compensate the slip.
Note: Adjustment is not normally required.
0.0 to
2.5
0.0 O 20F —
C3-02
Slip
Compensation
Primary Delay
Time
Adjusts the slip compensation function delay time.
Decrease the setting when the slip compensation
response is too slow, increase it when
the speed is not
stable.
Disabled when Simple V/f Control with PG (H6-01 =
3) is used.
0 to
10000
2000
ms
O 210 —
B.2 Parameter Table
YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
201
B
Parameter List
2/6/2008-14:44
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