Yaskawa VS-626 MC5 - Manual (Page 216)

User Constants
8.2.2 Autotuning Constants: C
- 8
J S-curve Acceleration/Deceleration: C2
Consta
nt
Name
Set- Facto- Change
during
Control Methods
nt
Num-
ber
Display
Description
Set
ting
Range
Facto
ry Set-
ting
g
during
Opera-
tion
Open Loop
Vector Flux Vector
Page
C2-01
S-curve charac-
teristic time at ac-
celeration start
All sections of the S-curve characteristic
time are set in seconds units
0.0 to
2.50
0.20 A A - 21
SCrv Acc @ Start
time are set in seconds units.
When the S-curve characteristic time is
2.50
C2-02
S-curve charac-
teristic time at ac-
celeration end
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.
0.0 to
2.50 0.20 A A - 21
SCrv Acc @ End
Run com- ON OFF
2.50
C2-03
S-curve charac-
teristic time at de-
celeration start
Output frequency
C1-02 C1-03
Run com-
mand ON OFF
0.00 to
2 50
0.20 A A - 21 C2 03
SCrv Dec @
Start
C1-01
C1 03
C1-04
2.50
0.20 A A - 21
C2-04
S-curve charac-
teristic time at de-
celeration end
C1-01 C1-04
Time
0.00 to
2.50 0.00 A A - 21
SCrv Dec @ End
2.50
J Motor Slip Compensation: C3
Constant
Name
Setting Factory
Change
during
Control Methods
Constant
Number Display
Description
Setting
Range
Factory
Setting
g
during
Opera-
tion
Open Loop
Vector
Flux Vector
Page
C3-01
Slip compensation
gain
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.
When actual speed is high, de-
0.0 to
2 5 1.0 * B B
- 15
22
C3 01
Slip Comp Gain
When actual speed is high, de-
crease the set value.
In flux vector control mode this
function becomes gain to com-
pensate for slip caused by tem-
perature variation. 2.5 1.0 B B
- 22
C3-02
Slip compensation
primary delay time
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.
0 to
10000 200 * A - 22 C3 02
Slip Comp Time
not stabilized.
When responsiveness is low, de-
crease the set value.
When speed is not stabilized, in-
crease the set value.
10000 200 A - 22
C3-03
Slip compensation
limit
Sets the slip compensation limit as
a percentage of motor rated slip
0 to 250 200 A - 22 C3 03
Slip Comp Limit
a percentage of motor rated slip. 0 to 250 200 A - 22
C3-04
Slip compensation
selection during re-
generation
0: Disabled.
1: Enabled.
When the slip compensation dur-
ing regeneration function has
been activated, as regeneration
capacity increases momentarily,
0 1 0 A - 23
Slip Comp Regen
capacity increases momentarily,
it may be necessary to use a
braking option (braking resistor,
Braking Resistor Unit or Braking
Unit.)
C3-05
Flux calculation meth-
od
Used to set the flux calculation
method.
0: Flux is calculated based on the
output frequency after com-
pensation
0 1 0 A ---- C3 05
Flux Select
pensation.
1: Flux is calculated based on the
output frequency before com-
pensation.
0 1 0 A ----
8