N8: Pm Motor Control Tuning - YASKAWA CIPR-GA50C series Technical Manual

12.10 n: Special Adjustment
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n8: PM Motor Control Tuning

n8 parameters are used to make adjustments when controlling PM motors.
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n8-01: Pole Position Detection Current
No.
Name
(Hex.)
n8-01 Pole Position Detection
Current
(0540)
Expert
The drive uses the Initial Rotor Position Estimated Current to detect the initial position of rotors.
Use the "Si" value on the motor nameplate, if available.
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n8-02: Pole Alignment Current Level
No.
Name
(Hex.)
n8-02 Pole Alignment Current
Level
(0541)
Expert
The drive uses the polar pull-in current to attract the rotor after it detects the initial rotor position. When you
increase the value of n8-02, the starting torque also increases.
• If the motor does not track correctly at the time of the polar attraction, increase the value in 10% increments.
• If the motor oscillates at the time of the polar attraction, decrease the value in 10% increments.
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n8-11: Observer Calculation Gain 2
No.
Name
(Hex.)
n8-11 Observer Calculation Gain
2
(054A)
Note:
When n8-72 = 0 [Speed Estimation Method Select = Method 1], the default value is 50.0. When n8-72 = 1 [Method 2], the default value
is 150.0.
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n8-14: Polarity Compensation Gain 3
No.
Name
(Hex.)
n8-14 Polarity Compensation
Gain 3
(054D)
Expert
■
n8-15: Polarity Compensation Gain 4
No.
Name
(Hex.)
n8-15 Polarity Compensation
Gain 4
(054E)
Expert
■
n8-21: Motor Back-EMF (Ke) Gain
No.
Name
(Hex.)
n8-21 Motor Back-EMF (Ke)
Gain
(0554)
Expert
720
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets, as a percentage, the Initial Rotor Position Estimated Current, taking the E5-03 [Motor Rated
Current (FLA)] as the 100% value. Usually it is not necessary to change this setting.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the current at the time of polar attraction as a percentage where E5-03 [motor rated current]
is 100%. Usually it is not necessary to change this setting.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the gain for speed estimation. Usually it is not necessary to change this setting.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the gain for speed estimation. Usually it is not necessary to change this setting.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the gain for speed estimation. Usually it is not necessary to change this setting.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the gain for speed estimation. Usually it is not necessary to change this setting.
Description
Description
Description
Description
Description
Description
YASKAWA SIEPC71061753A GA500 Technical Manual
Default
(Range)
50%
(0 - 100%)
Default
(Range)
80%
(0 - 150%)
Default
(Range)
Determined by n8-72
(0.0 - 1000.0)
Default
(Range)
1.000
(0.000 - 10.000)
Default
(Range)
0.500
(0.000 - 10.000)
Default
(Range)
0.90
(0.80 - 1.00)