N8: Pm Motor Control Tuning - YASKAWA A1000 Series Technical Manual

Setting 0: Disabled
Setting 1: Line-to-line resistance tuning
This setting enables line-to-line resistance online tuning. This procedure is effective for speed values up to 6 Hz and
improves the overload capacity in the low speed range by adjusting the value set for the motor resistance.
Setting 2: Voltage correction
The drive adjusts the output voltage during run to improve overload tolerance and minimize the effects of high
temperatures on speed accuracy.
Note: This setting can only be selected if the Energy Saving function is disabled (b8-01 = 0).
n6-05: Online Tuning Gain
■
Sets the compensation gain for the voltage correction in the Online Tuning function (n6-01 = 2). Normally there is no
need to adjust n6-05, but increase the set value in steps of 0.1 if an overload fault occurs during voltage correction.
No.
n6-05

◆ n8: PM Motor Control Tuning

These parameters are available in the vector control modes for permanent magnet motors and can be used to adjust the
control performance.
n8-01: Initial Rotor Position Estimation Current (AOLV/PM)
■
Sets the current used for the initial rotor position estimation. The value is set as a percentage of the motor rated current.
No.
n8-01
n8-02: Pole Attraction Current (AOLV/PM)
■
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.
No.
n8-02
n8-35: Initial Rotor Position Detection Selection (AOLV/PM, CLV/PM)
■
Selects how the rotor position is detected at start.
Note: 1. 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.
2. High Frequency Injection and pulse injection for rotor position detection (n8-35 = 1 or 2) can be used with IPM motors only. When
using a 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.
Setting 2: Pulse injection
A pulse signal is injected into the motor in order to detect the rotor position.
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Name
Online Tuning Gain
Name
Initial Rotor Position Estimation Current
Name
Pole Attraction Current
Name
Initial Rotor Position Detection Selection
5.9 n: Special Adjustments
Setting Range Default
0.10 to 5.00
Setting Range Default
0 to 100%
Setting Range Default
0 to 150%
Setting Range Default
0 to 2
1.00
50%
80%
5
1
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