Yaskawa G5HHP Drive - Manual (Page 278)

User Constants
8.2.2 Autotuning Constants: C
8 - 12
Constant
Number
Page
Control Methods
Change
during
Opera-
tion
Factory
Setting
Setting
Range
Description
Name
Constant
Number
Page
Flux
Vector
Open
Loop
Vector
V/f
with
PG
V/f
Change
during
Opera-
tion
Factory
Setting
Setting
Range
Description
Display
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 x x x A x ---- C3 05
Flux Select
pensation.
1: Flux is calculated based on the
output frequency before com-
pensation.
0, 1 0 x x x A x ----
* When the control method is changed, the Inverter reverts to factory settings. (The open loop vector control factory settings will
be displayed.)
J
Torque Compensation: C4
C t t
Name
S tti F t
Change
Control Methods
Constant
Number Display
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
V/f
V/f
with
PG
Open
Loop
Vector
Flux
Vector
Page
C4-01
Torque compensation
gain
Sets torque compensation gain as a
ratio.
;
Usually setting is not necessary.
Adjust in the following circum-
stances:
S When the cable is long; increase
the set value.
S When the motorcapacity is small-
er than the Inverter capacity
0.00 to
2 50
1.00 f B B B x 7 - 52 C4 01
Torq Comp Gain
er than the Inverter capacity
(Max. applicable motor capac-
ity), increase the set values.
S When the motor is oscillating, de-
crease the set values.
Adjust the output current range at
minimum speed rotation so that it
does not exceed the Inverter rated
output current.
2.50
1.00 f B B B x 7 - 52
C4-02
Torque compensation
time constant
The torque compensation delay
time is set in ms units.
;
Usually setting is not necessary.
Adjust in the following circum-
stances:
S Wh th t i ill ti i
0 to
10000
20 * x A A A x 7 - 52 C4 02
Torq Comp Time
S When the motor is oscillating, in-
crease the set values.
S When the responsiveness of the
motor is low, decrease the set val-
ues.
10000
20 x A A A x 7 - 52
* When the control method is changed, the Inverter reverts to factory settings. (The open loop vector control factory settings will
be displayed.)
8