YASKAWA
SIEPC71061737B GA800 Drive Technical Reference
723
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C4-04: Torque Compensation @ REV Start
No.
(Hex.)
Name
Description
Default
(Range)
C4-04
(0218)
Torque Compensation @
REV Start
Sets the amount of torque reference for reverse start as a percentage of the motor rated torque.
0.0%
(-200.0 - 0.0%)
The drive uses the time constant set in
C4-05 [Torque Compensation Time]
to do the torque compensation function.
This is available only when you start the motor with the reverse Run command.
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C4-05: Torque Compensation Time
No.
(Hex.)
Name
Description
Default
(Range)
C4-05
(0219)
Torque Compensation Time
Sets the starting torque constant to use with
C4-03 and C4-04 [Torque Compensation @ FWD/REV
Start]
.
10 ms
(0 - 200 ms)
■
C4-06: Motor 2 Torque Comp Delay Time
No.
(Hex.)
Name
Description
Default
(Range)
C4-06
(021A)
Motor 2 Torque Comp Delay
Time
Sets the value if
ov [Overvoltage]
occurs with sudden changes in the load, at the end of acceleration,
or at the start of deceleration.
150 ms
(0 - 10000 ms)
Sets the time constant used during Speed Search or during regenerative operation when
ov
occurs.
Adjust this parameter in the following circumstances.
•
Gradually reduce the setting in 10 ms increments and check the performance to improve motor torque speed
response when
ov
occurs.
Note:
•
Ensure that
C4-06 ≥ C4-02 [Torque Compensation Delay Time]
.
•
Increase the setting value of
n2-03 [Automatic Freq Regulator Time 2]
proportional to
C4-06
.
■
C4-07: Motor 2 Torque Compensation Gain
No.
(Hex.)
Name
Description
Default
(Range)
C4-07
(0341)
RUN
Motor 2 Torque
Compensation Gain
Sets the gain for motor 2 torque compensation function when using the Motor Switch function.
1.00
(0.00 - 2.50)
In V/f Control or CL-V/f Control, adjust the value in 0.05 unit increments for these conditions:
•
When torque is not sufficient during low-speed operation of 10 Hz or less, increase the setting value
•
When there is vibration in the motor or when the motor hunts when operating the drive with a light load, decrease
the setting value
•
When you use a long motor cable, increase the setting.
Note:
•
Adjust
C4-07
and make sure that the output current is not more than the drive rated current during low-speed operation.
•
When
A1-02 = 2 [Open Loop Vector]
, usually it is not necessary to change this setting. If you change this parameter in that control method,
it can decrease the torque precision.
■
C4-19: Torque Ripple Suppress Min Freq
No.
(Hex.)
Name
Description
Default
(Range)
C4-19
(0B8D)
RUN
Expert
Torque Ripple Suppress Min
Freq
Adjust this if slow oscillation occurs at low speeds. Increase this parameter in 1.0 Hz increments
when current ripples and torque ripples occur during low-speed operation. Set this parameter to 0.0 to
disable the function if increasing the value does not fix the problem. Usually it is not necessary to
change this setting.
0.1 Hz
(0.0 - 10.0 Hz)
V/f
CL-V/f
OLV
CLV
AOLV
OLV/PM
OLV/PM AOLV/PM CLV/PM
EZOLV
V/f
CL-V/f
OLV
CLV
AOLV
OLV/PM
OLV/PM AOLV/PM CLV/PM
EZOLV
V/f
CL-V/f
OLV
CLV
AOLV
OLV/PM
OLV/PM AOLV/PM CLV/PM
EZOLV
V/f
CL-V/f
OLV
CLV
AOLV
OLV/PM
OLV/PM AOLV/PM CLV/PM
EZOLV
V/f
CL-V/f
OLV
CLV
AOLV
OLV/PM
OLV/PM AOLV/PM CLV/PM
EZOLV
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...