Parameter List
1
1.12 n: Special Adjustment
YASKAWA TOEPYAIGA5002A GA500 Programming 81
No.
(Hex.)
Name Description
Default
(Range)
Ref.
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%)
420
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)
420
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 [Motor Rated Current (FLA)]
• A1-02 = 8 [EZOLV]: E9-06 [Motor Rated Current (FLA)]
Determined by A1-02
(0 - 200%)
420
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)
420
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)
421
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)
421
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.
Note:
When A1-02 = 8 [Control Method Selection = EZOLV], the default settings are:
• 200 V class: 230.0 V
• 400 V class: 460.0 V
200 V Class: 200.0 V, 400
V: 400.0 V
(200 V Class: 0.0 to 240.0
V, 400 V Class: 0.0 to
480.0 V)
422
n8-63
(057E)
Expert
Output Voltage Limit P
Gain
Sets the proportional gain for output voltage control. Usually it is not necessary to change
this setting.
1.00
(0.00 - 100.00)
422
n8-65
(065C)
Expert
Speed Fdbk Gain @ oV
Suppression
Sets the gain of internal speed feedback detection suppression while the overvoltage
suppression function is operating as a magnification value. Usually it is not necessary to
change this parameter.
1.50
(0.00 - 10.00)
422
n8-69
(065D)
Expert
Speed Observer Control P
Gain
Usually it is not necessary to change this setting. Sets the Proportional gain that the drive
uses for speed estimation.
1.00
(0.00 - 20.00)
422
n8-72
(0655)
Expert
Speed Estimation Method
Select
Selects the speed estimation method. Usually it is not necessary to change this setting.
0 : Method 1
1 : Method 2
1
(0, 1)
422
n8-74
(05C3)
Expert
Light Load Iq Level
Set n8-48 [Pull-in/Light Load Id Current] to the percentage of load current (q-axis current)
that you will apply, where E5-03 [Motor Rated Current (FLA)] = a setting value of 100%.
30%
(0 - 255%)
423
n8-75
(05C4)
Expert
Medium Load Iq Level
(low)
Set n8-78 [Medium Load Id Current] to the percentage of load current (q-axis current) that
you will apply, where E5-03 [Motor Rated Current (FLA)] = a setting value of 100%.
50%
(0 - 255%)
423
n8-77
(05CE)
Expert
Heavy Load Iq Level
Set n8-49 [Heavy Load Id Current] to the percentage of load current (q-axis current) that
you will apply, where E5-03 [Motor Rated Current (FLA)] = a setting value of 100%.
90%
(0 - 255%)
423
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