S-Curve Acceleration/Deceleration: C2; Motor Slip Compensation: C3 - YASKAWA VARISPEED-616G5 Instruction Manual

User Constants
8.2.2 Autotuning Constants: C
Name
Con Con-
stant
Num-
Display
ber
S-curve charac-
teristic time at ac-
C2-01
celeration start
SCrv Acc @ Start
S-curve charac-
teristic time at ac-
C2-02
celeration end
SCrv Acc @ End
S-curve charac-
teristic time at de-
celeration start
C2 03 C2-03
SCrv Dec @
Start
S-curve charac-
teristic time at de-
C2-04
celeration end
SCrv Dec @ End
C Constant
Number
Slip compensation
gain
C3 01 C3-01
Slip Comp Gain
8
Slip compensation
primary delay time
C3 02 C3-02
Slip Comp Time
Slip compensation
limit
C3-03 C3 03
Slip Comp Limit
Slip compensation
selection during re-
generation
C3-04
Slip Comp Regen

S-curve Acceleration/Deceleration: C2

J
Description
All sections of the S-curve characteristic All sections of the S-curve characteristic
time are set in seconds units.
:When the S-curve characteristic time is
set, the accel/decel times will increase
by only half of the S-curve characteris-
tic times at start and end tic times at start and end.
Run com- Run com-
ON ON
mand
Output frequency
C1-02
C1-01 C1-01

Motor Slip Compensation: C3

J
Name
Description
Display
Used to improve speed accuracy
when operating with a load.
:Usually setting is not necessary.
When actual speed is low, in-
crease the set value.
Wh When actual speed is high, de- t l
crease the set value.
In flux vector control mode this
function becomes gain to com-
pensate for slip caused by tem-
perature variation.
Slip compensation primary delay
time is set in ms units.
:Usually setting is not necessary.
Adjust when slip compensation
responsiveness is low, or speed
is not stabilized is not stabilized.
When responsiveness is low, de-
crease the set value.
When speed is not stabilized, in-
crease the set value.
Sets the slip compensation limit as
a percentage of motor rated slip a percentage of motor rated slip.
0: Disabled.
1: Enabled.
:When the slip compensation
during regeneration function
has been activated, as regenera-
tion capacity increases momen- tion capacity increases momen-
tarily, it may be necessary to
use a braking option (braking
resistor, Braking Resistor Unit
or Braking Unit.)
Setting S Factory
Range Setting
0.0 to
0.20
2.50 2.50
0.0 to
0.20
2.50 2.50
OFF OFF
0.00 to
C1-03 C 03 0.20 0.20
2 50 2.50
C1-04 C1-04
0.00 to
Time
0.00
2.50 2.50
S Setting Factory
Range Setting
0.0 to
1.0 * 1.0
2.5 2 5
d i hi h d
0 to
200 200 *
10000 10000
0 to 250 0 to 250 200 200
0, 1 0
8 - 12
Control Methods
Change Change
during
V/f
Open
Opera-
V/f with
Loop
tion Vector
Vector
PG
A A A
×
A A A
×
A A A A A A
× ×
A A A
×
Control Methods
Change Change
during
V/f
Open
Opera-
V/f with
Loop
tion Vector
Vector
PG
B B B B
× ×
f f
A A A A
× × × ×
A A A A
× × × ×
A A
× ×
Page
Flux
A
7 - 52
A 7 - 52
A A
7 - 52 7 52
A 7 - 52
Page
Flux
7 - 34
B B
7 - 53 7 53
7 54 7 - 54
× ×
7 54 7 - 54
× ×
7 - 54
×