YASKAWA GA800 Programming Manual page 502

2.10 n: Special Adjustment
■
n8-28: ACR d Lim @PoleEst
No.
Name
(Hex.)
n8-28 ACR d Lim @PoleEst
(055B)
Expert
■
n8-35: Initial Pole Detection Method
No.
Name
(Hex.)
n8-35 Initial Pole Detection
Method
(0562)
When you set A1-02 = 7 [Control Method Selection = CLV/PM], the initial motor magnetic pole detection operates
the first time after you energize the drive. After that, the drive uses the encoder signal to calculate the rotor position
and the drive saves the value until you de-energize the drive. If you use an absolute value encoder, the initial motor
magnetic pole detection will not operate.
Note:
• When you operate an SPM motor, set n8-35 = 0. When you operate an IPM motor, you can set n8-35 = 0 to 2.
• When you set n8-35 = 1, do High Frequency Injection Auto-Tuning.
• When you set n8-35 = 0 or 2, you must examine the drive and machinery setup that you use for the application. If the drive incorrectly
detects the polarity, the drive can rotate in the direction opposite of the Run command.
0 : Pull-in
Starts the rotor with pull-in current.
1 : High Frequency Injection
Injects high frequency to detect the rotor position. This setting can cause a loud excitation sound when the motor
starts.
Note:
When you set this to 1, do High Frequency Injection Auto-Tuning.
2 : Pulse Injection
Inputs the pulse signal to the motor to detect the rotor position.
■
n8-36: HFI Frequency Level for L Tuning
No.
Name
(Hex.)
n8-36 HFI Frequency Level for L
Tuning
(0563)
Note:
• Set n8-35 = 1 [Initial Pole Detection Method = High Frequency Injection] or n8-57 = 1 [HFI Overlap Selection = Enabled] to enable this
parameter.
• The drive automatically calculates this value when High Frequency Injection Auto-Tuning completes successfully.
■
n8-37: HFI Voltage Amplitude Level
No.
Name
(Hex.)
n8-37 HFI Voltage Amplitude
Level
(0564)
Expert
Note:
Set n8-35 = 1 [Initial Pole Detection Method = High Frequency Injection] or n8-57 = 1 [HFI Overlap Selection = Enabled] to enable this
parameter.
The drive automatically calculates this value when High Frequency Injection Auto-Tuning completes successfully.
502
V/f CL-V/f OLV CLV AOLV
Sets the d-axis limit of the current regulator when the drive estimates the initial pole. Usually it is not
necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets how the drive detects the position of the rotor at start.
V/f CL-V/f OLV CLV AOLV
Sets the injection frequency for high frequency injection.
V/f CL-V/f OLV CLV AOLV
Sets the high frequency injection amplitude as a percentage where 200 V = 100% for 200 V class
drives and 400 V = 100% for a 400 V class drives. Usually it is not necessary to change this setting.
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
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
Default
(Range)
100%
(0 - 150%)
Default
(Range)
Determined by A1-02
(0 - 2)
Default
(Range)
500 Hz
(200 - 1000 Hz)
Default
(Range)
20.0%
(0.0 - 50.0%)