YASKAWA VS-656MR5

Control Constants
10-2
10.1 User Constants
The user constants are listed in the following table.
Table 10.1 User Constants
Con-
stant
No.
Name Explanation Change
*
1
Unit Standard
Setting
Upper
Limit/
Lower
Limit
C1 01
Speed Control
Proportional
Gi
(H)
Speed control proportional gain when high-speed gear is selected (i.e.,
MGR and LGR are OFF) or when high-speed winding is selected (i.e.,
CHW
i
OFF)
Ii
K
i
i idi
Y
es
%/Hz
30
255
C1-01
p
Gain (H)
K
VHN
)
gp
g
(,
CHW is OFF). Increasing K
VHN
increases rigidity
.
Torque reference P = K
VHN
×
Speed tolerance
Yes %/Hz 30
1
C1 02
Speed Control
Integral Time
(H)
Speed control integral time constant when high-speed gear is selected
(i.e., MGR and LGR are OFF) or when high-speed winding is selected
(i
CHW
i
OFF)
Rd i
ik
Y
es
ms
600
1000
C1-02
g
(H)
τ
VHN
(,
)
gp
g
(i.e., CHW is OFF). Reducing τ
VHN
quickens response.
Torque reference I = Torque reference P
×
Time/τ
VHN
Yes ms 600
5
C1 03
Speed Control
Proportional
Gain
(M,
L)
Speed control proportional gain when low-speed is selected (i.e., MGR
or LGR is ON) or when low-speed winding is selected (i.e., CHW is
ON).
Y
es
%/Hz
30
255
C1-03
Gain
(M
,
L)
K
VLN
ON)
.
Increasing K
VLN
increases rigidity.
Torque reference P = K
VLN
×
Speed tolerance
Yes %/Hz 30
1
C1 04
Speed Control
Integral Time
Constant
(M,
L)
Speed control integral time constant when low-speed gear is selected
(i.e., MGR or LGR is ON) or when low-speed winding is selected (i.e.,
CHW
is
ON).
Y
es
ms
600
1000
C1-04
Constant
(M
,
L)
τ
VLN
CHW
is
ON)
.
Reducing τ
VLN
quickens response.
Torque reference I = Torque reference P
×
Time/τ
VLN
Yes ms 600
5
C1 05
Speed Control
Proportional
Gi
(H)
Speed proportional gain when high-speed gear is selected (i.e., MGR and
LGR are OFF) or when high-speed winding is selected (i.e., CHW is
OFF)
i
d
(i
SV
i
ON)
Y
es
%/Hz
40
255
C1-05
p
Gain (H)
K
VHS
)
gp
g
(,
OFF) in servo mode (i.e., SV is ON).
Torque reference P = K
VHS
×
Speed tolerance
Yes %/Hz 40
1
C1 06
Speed Control
Integral Time
C
(H)
Speed control integral time constant when high-speed gear is selected
(i.e., MGR and LGR are OFF) or when high-speed winding is selected
(i
CHW
i
OFF)
i
d
(i
SV
i
ON)
Y
es
ms
100
1000
C1-06
g
Constant (H)
τ
VHS
(,
)
gp
g
(i.e., CHW is OFF) in servo mode (i.e., SV is ON).
Torque reference I = Torque reference P
×
Time/τ
VHS
Yes ms 100
5
C1 07
Speed Control
Proportional
Gi
(M
L)
Speed control proportional gain when low-speed gear is selected (i.e.,
MGR or LGR is ON) or when low-speed winding is selected (i.e., CHW
i
ON)
i
d
(i
SV
i
ON)
Y
es
%/Hz
40
255
C1-07
p
Gain (M, L)
K
VLS
)
p
g
(,
is ON) in servo mode (i.e., SV is ON).
Torque reference P = K
VLS
×
Speed tolerance
Yes %/Hz 40
1
C1 08
Speed Control
Integral Time
C
(M
L)
Speed control integral time constant when low-speed gear is selected
(i.e., MGR or LGR is ON) or when low-speed winding is selected (i.e.,
CHW
i
ON)
i
d
(i
SV
i
ON)
Y
es
ms
100
1000
C1-08
g
Constant (M, L)
τ
VLS
(,
)
p
g
(,
CHW is ON) in servo mode (i.e., SV is ON).
Torque reference I = Torque reference P
×
Time/τ
VLS
Yes ms 100
5
C1 09
Torque Refer-
ence
Filter
T
ime
Time constant of low-pass filter for torque reference for gear chattering
noise. Increasing the time constant may cause run-away depending on
conditions
Y
es
ms
10
5.0
C1-09
Filt
er
T
i
me
Constant
τ
T
con
diti
ons.
Yes ms 1.0
0.0
C1 10
Soft Start Time
Setting T
SFS
Setting of time required for soft starter. Variations in speed references are
suppressed according to the speed change ratio of the set time. Starting
i
f
i
bi d
fll
Y
es
sec
01
180.0
C1-10
g
S
F
S
pp
g
p
g
g
time from at rest state is obtained as follows:
Starting time = T
SFS
×
Speed reference (%)/100
Yes sec 0.1
0.1
C1 1
1
*
2
Speed Refer-
ence Offset Ad-
Offset adjustment to analog reference. Set the value of U1-15 when oper-
ating using speed reference 0 in C1-11.
Y
es
0
80
C1-11
*
2
ence
Of
fset
Ad
justment Value
SC
OFS
ating
using
speed
reference
0
in
C1 1
1.
Yes --- 0
−80
C1 12
*
2
Motor Speed
Adjustment Val-
Constant to adjust motor speed over analog speed reference. When the
value of S
ADJ
increases, speed increases, and when the value of S
ADJ
Y
es
1 0000
1.1000
C1-12
*
2
Adjustment
V
al
ue
S
ADJ
value
of
S
A
D
J
increases,
speed
increases,
and
when
the
value
of
S
A
D
J
decreases, speed decreases. Disabled when using digital speed reference.
Yes --- 1.0000
0.9000
10