YASKAWA GA800 Series, Техническое описание

Страница: 969 / 1016

Parameter
Details
12
12.10 n: Special Adjustment
YASKAWA SIEPC71061737B GA800 Drive Technical Reference 969
■
n8-47: Pull-in Current Comp Filter Time
No.
(Hex.)
Name Description
Default
(Range)
n8-47
(053A)
Pull-in Current Comp Filter
Time
Sets the time constant the drive uses to align the pull-in current reference value with the actual
current value. Usually it is not necessary to change this setting.
5.0 s
(0.0 - 100.0 s)
Adjust this parameter in these conditions:
•
If the time for the reference value of the pull-in current to align with the target value is too long, increase the setting
value.
• If vibration or hunting occur, decrease the setting value in 0.2 unit increments.
• If the motor stalls during run at constant speed, decrease the setting value in 0.2 unit increments.
■
n8-48: Pull-in/Light Load Id Current
No.
(Hex.)
Name Description
Default
(Range)
n8-48
(053B)
Pull-in/Light Load Id
Current
On the basis that parameter E5-03 [Motor Rated Current (FLA)] is the 100% value, this parameter
sets the d-axis current that flows to the motor during run at constant speed as a percentage.
30%
(0 - 200%)
Adjust in the following situations.
•
Slightly reduce this value if there is too much current when driving a light load at a constant speed.
•
Increase the setting value in steps of 5% when hunting or vibration occurs during run at constant speed.
•
Increase the setting value in steps of 5% if the motor stalls during run at constant speed.
■
n8-49: Heavy Load Id Current
No.
(Hex.)
Name Description
Default
(Range)
n8-49
(053C)
Heavy Load Id Current
Sets the d-axis current to that the drive will supply to the motor to run it at a constant speed with a
heavy load. Considers
E5-03 [PM Motor Rated Current (FLA)] to be 100%. Usually it is not
necessary to change this setting.
Determined by E5-01
(-200.0 - +200.0%)
When you use an IPM motor, you can use the reluctance torque of the motor to make the motor more efficient and
help conserve energy.
When you operate an SPN motor, set this parameter to 0.
Adjust this parameter in these conditions:
•
If the load is large and motor rotation is not stable, decrease the setting value.
•
If you change the E5 parameters [PM Motor Settings] , set n8-49 = 0 , then adjust this parameter.
■
n8-50: Medium Load Iq Level (High)
No.
(Hex.)
Name Description
Default
(Range)
n8-50
(053D)
Medium Load Iq Level
(High)
Sets the load current level to start high efficiency control as a percentage of E5-03 [PM Motor Rated
Current (FLA)] . Usually it is not necessary to change this setting.
80%
(50 - 255%)
■
n8-51: Pull-in Current @ Acceleration
No.
(Hex.)
Name Description
Default
(Range)
n8-51
(053E)
Pull-in Current @
Acceleration
Sets the pull-in current allowed to flow during acceleration/deceleration as a percentage of the motor
rated current.
Determined by A1-02
(0 - 200%)
Adjust in the following situations.
• When the motor does not smoothly because of large loads, increase the setting value in 5% increments.
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