4.10 Fine Tuning during Test Runs (Adjust the Control Function)
YASKAWA
SIEPC71061737B GA800 Drive Technical Reference
203
*4
Recommended settings are for 200 V class drives. Multiply the voltage by 2 for 400 V class drives.
*5
In Closed Loop V/f Control, ASR only controls the output frequency. You cannot make a high-gain as in Closed Loop Vector control.
◆
Open Loop Vector Control Method
In Open Loop Vector Control, keep
C4-01 [Torque Compensation Gain]
at its default setting (1.00).
If you cannot get speed precision during regeneration in Open Loop Vector Control, set
C3-04 = 1 [Slip
Compensation @ Regen Select = Enabled above 6 Hz]
.
Table 4.18 Parameters for Fine Tuning the Drive (
A1-02 = 2[OLV]
)
Issue
Parameter Number
Possible Solutions
Default
Recommended Setting
•
Unsatisfactory motor torque
and speed response
•
Hunting or oscillation at mid-
range speeds (10 Hz to 40 Hz)
n2-01 [SpdFeedbackDetectCtr
(AFR) Gain]
•
To increase the speed of torque
or speed response, decrease the
setting value in increments of
0.05.
•
If hunting or oscillation occur,
decrease the setting value in
increments of 0.05.
1.00
0.50 - 2.00
n2-02 [SpdFeedbackDetCtr(AFR)
TimeConst1]
•
To increase the speed of torque
or speed response, decrease the
setting value in increments of
10 ms and examine the
response.
•
If hunting or oscillation occur
or if the load inertia is too
much, increase the setting value
in increments of 50 ms and
examine the response.
Note:
Make sure that this parameter
setting is:
n2-02 ≤ n2-03
[Automatic Freq Regulator
Time 2]
holds true.
When you adjust
n2-02
, you
must also increase the
C4-02
[Motor 1 Torque Comp Delay
Time]
value by the same ratio.
50 ms
50 ms to 2000 ms
ov [overvoltage]
occurs when the
drive stops accelerating, starts to
decelerate, or when there are large
changes in the load.
n2-03 [SpdFeedbackDetCtr(AFR)
TimeConst2]
•
If
ov
occurs, increase the setting
value in increments of 50 ms
and examine the response.
•
If the response is not sufficient,
decrease the setting value in
increments of 10 ms and
examine the response.
Note:
Make sure that this parameter
setting is:
n2-02 [Automatic
Freq Regulator Time 1] ≤ n2-
03
. When you adjust
n2-03
you
must also increase the
C4-06
[Motor 2 Torque Comp Delay
Time]
value by the same ratio.
750 ms
750 ms to 2000 ms
C4-06 [Motor 2 Torque Comp
Delay Time]
•
If
ov
occurs, increase the setting
value in increments of 10 ms
and examine the response.
•
If the response is not sufficient,
decrease the setting value in
increments of 2 ms and
examine the response.
Note:
Make sure that this parameter
setting is:
C4-02 [Torque
Compensation Delay Time] ≤
C4-06
.
When you adjust
C4-06
, you
must also increase the
n2-03
[SpdFeedbackDetCtr(AFR)
TimeConst2]
value by the same
ratio.
150 ms
150 ms to 750 ms
Содержание GA800 Series
Страница 2: ...This Page Intentionally Blank 2 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 20: ...i 3 Warranty Information 20 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 30: ...1 3 Features and Advantages of Control Methods 30 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 58: ...2 9 Installation Methods 58 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 144: ...4 4 Start up Procedures 144 YASKAWA SIEPC71061737B GA800 Drive Technical Reference Figure 4 8 Basic Steps before Startup...
Страница 268: ...5 6 Safe Disable Input 268 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 306: ...6 3 MEMOBUS Modbus Communications 306 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 370: ...7 10 Troubleshooting Without Fault Display 370 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 426: ...8 7 Storage Guidelines 426 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...