User Constants - YASKAWA VS-626M5 Instruction Manual

Control Constants

10.1 User Constants

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