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5.9 n: Special Adjustments
n8-02: Pole Attraction Current
■
Sets the current applied to pull the rotor into position after the initial rotor position estimations are complete. The value is
set as a percentage of the motor rated current. Increase this setting in order to increase the starting torque.
Note: This parameter is available in AOLV/PM or CLV/PM.
No.
n8-02
■
n8-11: Induction Voltage Estimation Gain 2
There is normally no need to change this parameter from the default value.
Sets the gain for speed estimation.
No.
n8-11
<1> When n8-72 is set to 0, the default setting is 50.0 and when n8-72 is set to 1, the default setting is 150.0. Refer to
Method Selection on page 330
■
n8-14: Polarity Compensation Gain 3
There is normally no need to change this parameter from the default value.
Sets the gain for speed estimation.
No.
n8-14
n8-15: Polarity Compensation Gain 4
■
There is normally no need to change this parameter from the default value.
Sets the gain for speed estimation.
No.
n8-15
n8-21: Motor Ke Gain
■
There is normally no need to change this parameter from the default value.
Sets the gain for speed estimation.
No.
n8-21
n8-35: Initial Rotor Position Detection Selection
■
Selects how the rotor position is detected at start.
Note: 1. This parameter is available in AOLV/PM or CLV/PM.
2. In CLV/PM, the drive performs a magnetic pole search the first time it starts the motor. After that, rotor position is calculated from the
PG encoder signal and saved until the drive is switched off. Parameter n8-35 determines how this initial pole search operates.
3. High Frequency Injection and pulse injection for rotor position detection (n8-35 = 1 or 2) can be used with IPM motors only. When
using an SPM motor, select the pull in method to find the initial position of the rotor (n8-35 = 0).
No.
n8-35
Setting 0: Pull in
Starts the rotor using pull-in current.
Setting 1: High Frequency Injection
High frequency is injected in order to detect the rotor position. Some noise may be generated from the motor at start.
326
Name
Pole Attraction Current
Name
Induction Voltage Estimation Gain 2
for a list of monitors.
Name
Polarity Compensation Gain 3
Name
Polarity Compensation Gain 4
Name
Motor Ke Gain
Name
Initial Rotor Position Detection Selection
Setting Range
Setting Range
0.0 to 1000.0
Setting Range
0.000 to 10.000
Setting Range
0.000 to 10.000
Setting Range
Setting Range
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
Default
0 to 150%
Default
Determined by n8-72
n8-72: Speed Estimation
Default
Default
Default
0.80 to 1.00
Default
0 to 2
80%
<1>
1.000
0.500
0.90
1
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