Parameter List
11
11.12 n: Special Adjustment
YASKAWA SIEPC71061737D GA800 Drive Technical Reference 631
No.
(Hex.)
Name Description
Default
(Range)
Ref.
n8-49
(053C)
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%)
1028
n8-50
(053D)
Medium Load Iq Level
(High)
Sets the load current level to start high efficiency control as a percentage of E5-03 [PM
Motor Rated Current (FLA)]. Usually it is not necessary to change this setting.
80%
(50 - 255%)
1029
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%)
1029
n8-52
(053F)
Expert
ACR P Gain
Sets the proportional gain of the current regulator. Usually it is not necessary to change this
setting.
10.0
(-100.0 - 100.0)
1029
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)
1029
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)
1029
n8-56
(056F)
Expert
PM High Performance
Selection
Usually it is not necessary to change this setting. Sets the high efficiency control method
for IPM motor.
0 : Disabled
1 : Enabled (Vd)
2 : Enabled (Vd & Vq)
1
(0 - 2)
1030
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)
1030
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 = 7, 8 [Control Method Selection = CLV/PM EZOLV], this parameter is
available in Expert mode.
• 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 Class: 400.0 V
(200 V Class: 0.0 to 240.0
V, 400 V Class: 0.0 to
480.0 V)
1031
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)
1031
n8-64
(057F)
Expert
Output Voltage Limit I
Time
Sets the integral time for output voltage control. Usually it is not necessary to change this
setting.
0.040 s
(0.000 - 5.000)
1031
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)
1031
n8-66
(0235)
Expert
Output Voltage Limit
Filter Time
Sets the filter time constant for output voltage control. Usually it is not necessary to change
this setting.
0.020 s
(0.000 - 5.000)
1031
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)
1032
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