YASKAWA Varispeed G7 Instruction Manual page 138

Speed Control (ASR): C5
User constants for speed control are shown in the following table.
Name
Con-
stant
Num-
Display
ber
ASR pro-
portional
Sets the proportional gain of the speed
(P) gain 1
C5-01
loop (ASR.)
ASR P
Gain 1
ASR inte-
gral (I)
Sets the integral time of the speed loop
time 1
C5-02
(ASR) in 1-second units.
ASR I
Time 1
ASR pro-
portional
Usually setting is not necessary.
(P) gain 2
C5-03
Set to change the rotational speed gain.
ASR P
P, I
Gain 2
ASR inte-
gral (I)
time 2
C5-04
0
ASR I
Time 2
ASR limit Sets the upper limit for the compensa-
tion frequency for the speed control
C5-05
loop (ASR) to a percentage of the
ASR Limit
maximum output frequency.
ASR pri- Sets the filter time constant for output-
mary delay ting torque references from the speed
time control loop (ASR). It is set in 1-sec-
ond units.
C5-06
With open-loop vector 2 control, this
ASR Delay
setting is enabled only for speeds in
Time
the range 0 to 35 Hz.
Usually setting is not necessary.
ASR
switching
Set the frequency for switching
frequency
C5-07 between Proportion Gain 1, 2 and Inte-
gral Time 1, 2 in Hz units.
ASR Gain
SW Freq
ASR inte-
gral (I)
Set to a small value to prevent any rad-
limit
C5-08 ical load change. Set to 100% of the
maximum output frequency.
ASR I
Limit
ASR pri- Sets the filter time constant for output-
mary delay ting torque references from the speed
time 2 control loop (ASR). It is set in 1-sec-
ond units.
C5-10
With open-loop vector 2 control, this
ASR Delay
setting is enabled only for speeds
Time2
greater than 35 Hz.
Usually setting is not necessary.
* 1. When the control method is changed, the factory settings will change. The flux vector factory settings are given. Refer to Factory Settings that Change
with the Control Method (A1-02).
* 2. The setting range for flux vector and open-loop vector 2 controls is 1.00 to 300.00.
Setting
Description
Range
0.00 to
300.00
*2
0.000
to
10.000
0.00 to
300.00
2
*
P=C5-01
I=C5-02
P=C5-03
0.000
I=C5-04
to
E1-04 Motor speed (Hz)
10.000
0.0 to
20.0
0.000
to
0.500
0.0 to
400.0
0 to
400
0.000
to
0.500
Control Methods
Change
Open
Fac-
during
V/f Loop
tory
Opera-
V/f with Vec-
Setting
tion
PG tor
1
20.00
Yes No A No
*1
0.500
Yes No A No
s
*1
20.00
Yes No A No
*1
0.500
Yes No A No
s
*1
5.0% No No A No
0.004
No No No No
s
*1
0.0
No No No No
Hz
400% No No No No
0.010
No No No No
s
User Constant Tables
MEMO-
Open
BUS
Flux Loop
Page
Regis-
Vec- Vec-
ter
tor tor
2
4-19
A A 21BH
6-136
4-19
A A 21CH
6-136
4-19
A A 21DH
6-137
4-19
A A 21EH
6-137
No No 21FH 6-137
4-19
A A 220H
6-137
4-19
A A 221H
6-137
A A 222H 6-137
4-20
No A 231H 6-137
6-141
5-
25