YASKAWA GA700 Technical Manual page 895

Note:
• If the condition n8-74 [LghtLoadCurLvl 1] ≤ n8-75 is not met, oPE08 [Parameter Selection Error] is displayed.
• Between n8-74 and n8-75 and the level of the pull-in current from n8-48 to n8-78 [MedLoad Id Level], the change is linear.
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n8-77: IPM HiEffCtrLev2
No.
Name
(Hex.)
n8-77 IPM HiEffCtrLev2
(05CE)
Note:
Between n8-75 [LghtLoadCurLvl 2] and n8-77 and the level of the pull-in current from n8-78 [MedLoad Id Level] to n8-49 [d-Axis Cur
forHighEfficiencyCont], the change is linear.
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n8-78: MedLoad Id Level
No.
Name
(Hex.)
n8-78 MedLoad Id Level
(05F4)
■
n8-84: InitPolarityEstimationTimeoutCur
No.
Name
(Hex.)
n8-84 InitPolarityEstima
tionTimeoutCur
(02D3)
If using a Yaskawa motor, and the motor nameplate has an "Si" item, set a value equivalent to Si × 2.
Determining Polarity of Magnetic Poles
When starting operation (only the first time when set to A1-02 = 7 [Control Method Selection = PM Closed Loop
Vector Control]), initial estimation of the magnetic poles is carried out, and the polarity of the magnetic poles is
determined.
To check whether or not the polarity of magnetic poles has been recognized correctly as a result of the initial
estimation of the magnetic poles, use the monitor parameter U6-57 [PoleDis IdDifVal].
n8-84 is set automatically when Stationary Auto-Tuning or Rotational Auto-Tuning is carried out.
Note:
The motor may rotate in the direction that is opposite that of the direction of the Run command if the polarity direction is detected
mistakenly.
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n8-94: Selection of Recognition Criteria
No.
Name
(Hex.)
n8-94 Selection of
Recognition Criteria
(012D)
0 : Softstarter
1 : Speed feedback
Effective when n8-57 = 1 [High Frequency Injection = Enabled]. Improves the stability during times of sudden
changes in speed or load, such as with rapid acceleration/deceleration or impact loads.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
V/f CL-V/f OLV CLV AOLV
Set n8-49 [d-Axis Cur forHighEfficiencyCont] to the level of the load
current (q-axis current) to be applied.
V/f CL-V/f OLV CLV AOLV
Sets the level of the pull-in current for midrange loads.
V/f CL-V/f OLV CLV AOLV
Sets, as a percentage, the current for processing an estimation of the initial
motor magnetic pole, assuming that the E5-03 [PM Motor Rated Current
(FLA)] is the 100% value.
V/f CL-V/f OLV CLV AOLV
Choose the criteria for recognizing changes in speed or load. Normally there
is no need to change this setting.
11.10 n: Special Adjustment
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Default Setting
(Range)
90%
(0 - 255%)
Default Setting
(Range)
0%
(0 - 255%)
Default Setting
(Range)
100%
(0 - 150%)
Default Setting
(Range)
Determined by d5-01
(0, 1)
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