11.12 n: Special Adjustment
432 YASKAWA SIEPC71061753C GA500 Technical Manual
No.
(Hex.)
Name Description
Default
(Range)
Ref.
n8-39
(0566)
HFI LPF Cutoff Freq
Sets the low-pass filter shut-off frequency for high frequency injection.
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.
250 Hz
(0 - 1000 Hz)
748
n8-41
(0568)
Expert
HFI P Gain
Sets the response gain for the high frequency injection speed estimation.
Note:
• Set n8-35 = 1 [Initial Pole Detection Method = High Frequency Injection] or n8-
57 = 1 [HFI Overlap Selection = Enabled] to enable this parameter.
• When A1-02= 6 [Control Method Selection = AOLV/PM] and you do High
Frequency Injection Auto-Tuning, the drive automatically sets this parameter .
2.5
(-10.0 - +10.0)
749
n8-42
(0569)
Expert
HFI I Time
Sets the integral time constant for the high frequency injection speed estimation.
Usually it is not necessary to change this setting.
0.10 s
(0.00 - 9.99 s)
749
n8-45
(0538)
Speed Feedback
Detection Gain
Sets the internal speed feedback detection reduction unit gain as a magnification value.
Usually it is not necessary to change this setting.
0.80
(0.00 - 10.00)
749
n8-47
(053A)
Pull-in Current Comp
Filter Time
Sets the time constant the drive uses to align the pull-in current reference value with the
actual current value. Usually it is not necessary to change this setting.
5.0 s
(0.0 - 100.0 s)
749
n8-48
(053B)
RUN
Pull-in/Light Load Id
Current
On the basis that parameter E5-03 [Motor Rated Current (FLA)] is the 100% value, this
parameter sets the d-axis current that flows to the motor during run at constant speed as
a percentage.
30%
(0 - 200%)
749
n8-49
(053C)
RUN
Expert
Heavy Load Id Current
Sets the d-axis current to that the drive will supply to the motor to run it at a constant
speed with a heavy load. Considers E5-03 [PM Motor Rated Current (FLA)] to be
100%. Usually it is not necessary to change this setting.
Determined by E5-01
(-200.0 - +200.0%)
750
n8-50
(053D)
Expert
Medium Load Iq Level
(High)
Sets the load current level at which heavy load control starts where E5-03 [Motor Rated
Current (FLA)] is 100%. Usually it is not necessary to change this setting.
80%
(50 - 255)
750
n8-51
(053E)
Pull-in Current @
Acceleration
Sets the pull-in current allowed to flow during acceleration/deceleration as a percentage
of the motor rated current.
Note:
Parameter A1-02 [Control Method Selection] selects which parameter is the motor
rated current.
• A1-02 = 5 [OLV/PM]: E5-03 [PM Motor Rated Current (FLA)]
• A1-02 = 8 [EZOLV]: E9-06 [Motor Rated Current (FLA)]
Determined by A1-02
(0 - 200%)
750
n8-54
(056D)
Expert
Voltage Error
Compensation Time
Sets the time constant that the drive uses when adjusting for voltage errors.
1.00 s
(0.00 - 10.00 s)
750
n8-55
(056E)
Motor to Load Inertia
Ratio
Sets the ratio between motor inertia and machine inertia.
0 : Below 1:10
1 : Between 1:10 and 1:30
2 : Between 1:30 and 1:50
3 : Beyond 1:50
0
(0 - 3)
751
n8-56
(056F)
Expert
PM High Performance
Selection
Sets the high efficiency control method for IPM motors. Usually it is not necessary to
change this setting.
0 : Disabled
1 : Enabled (Vd)
2 : Enabled (Vd & Vq)
1
(0 - 2)
751
n8-57
(0574)
HFI Overlap Selection
Sets the function that detects motor speed with high frequency injection.
Note:
When you set n8-57 = 1, do High Frequency Injection Auto-Tuning.
0 : Disabled
1 : Enabled
0
(0, 1)
751
n8-62
(057D)
Expert
Output Voltage Limit
Level
Sets the output voltage limit to prevent saturation of the output voltage. Usually it is not
necessary to change this parameter.
200 V Class: 200.0 V,
400 V: 400.0 V
(200 V Class: 0.0 to
230.0 V, 400 V Class:
0.0 to 460.0 V)
752
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