YASKAWA A1000 Series Quick Start Manual page 311

No.
(Addr. Name
Hex)
Pull-In Current
n8-47 Compensation Time
(053A) Constant (for PM
Motors)
n8-48 Pull-In Current (for PM
(053B) Motors)
d-Axis Current for High
n8-49
Efficiency Control (for
(053C)
PM Motors)
Acceleration/
n8-51 Deceleration Pull-In
Current (for PM Motors) PM Pull-in I@Acc
(053E)
Voltage Error
n8-54
Compensation Time
(056D)
Constant
n8-55
Load Inertia
(056E)
n8-57 High Frequency
(0574) Injection
n8-62 Output Voltage Limit
(057D) (for PM Motors)
Speed Feedback
n8-65
Detection Control Gain
(065C)
during ov Suppression
n8-69
Speed Calculation Gain SpdSrch Gain
(065D)
n8-72
Speed Estimation
(0655)
Method Selection
<1>
Initial Polarity
n8-84
Estimation Timeout
(02D3)
Current
<1> Available in drive software versions PRG: 1018 and later.
<2> Default setting is determined by parameter n8-72, Speed Estimation Method Selection.
When n8-72 = 0, default is 50.0
When n8-72 = 1, default is 150.0.
<3> Default setting is determined by parameter E5-01, Motor Code Selection.
<4> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives.
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
LCD Display
Sets the time constant to make the pull-in current reference and
actual current value agree. Decrease the value if the motor
PM Pull-in I Tc
begins to oscillate, and increase the value if it takes too long
for the current reference to equal the output current.
Defines the d-Axis current reference during no-load operation
at a constant speed. Set as a percentage of the motor rated
PM No-load Curr
current. Increase this setting if hunting occurs while running at
constant speed.
Sets the d-Axis current reference when running a high load at
constant speed. Set as a percentage of the motor rated current.
EnergySav ID Lvl
Sets the d-Axis current reference during acceleration/
deceleration as a percentage of the motor rated current. Set to
a high value when more starting torque is needed.
Adjusts the value when hunting occurs at low speed. If hunting
occurs with sudden load changes, increase n8-54 in increments
PM V Error CompT
of 0.1. Reduce this setting if oscillation occurs at start. Increase
this setting if vibration occurs at start.
PMLoad wk2 Ratio Sets the ratio between motor and machine inertia.
0: Less than 1:10 0: Below 1:10
1: 1:10 to 1:30 1: Between 1:10 and 1:30
2: 1:30 to 1:50 2: Between 1:30 and 1:50
3: More than 1:50 3: Beyond 1:50
PM Harm Inj Sel 0: Disabled. Disable when using an SPM motor.
0: Disabled 1: Enabled. Use this setting to enhance the speed control range
1: Enabled when using an IPM motor.
Prevents output voltage saturation. Should be set just below the
voltage provided by the input power supply.
PM Vout Limit
Sets the gain used for internal speed feedback detection during
SFdbk G @OV Supp ov suppression.
Sets the proportional gain for PLL control of an extended
observer.
There is normally no need to change this parameter from the
default value.
Sets the method to be used for estimating the speed.
0: Conventional method
1: A1000 method
Spd Est method
There is normally no need to change this parameter from the
0: Conventional
default value.
1: A1000 method
Note:
Sets the current to determine polarity for the initial polarity
calculation as a percentage of the motor rated current.
100% = Motor rated current
Polarity Det Curr
Note:
Description
This parameter is not available in models
4A0930 and 4A1200.
If an "Si" value is listed on a Yaskawa motor
nameplate, set n8-84 to "Si" value x 2.
B.9 n: Special Adjustment
Values Page
Default: 5.0 s
Min.: 0.0
Max.: 100.0
Default: 30%
Min.: 20
Max.: 200
<3>
Default:
Min.: -200.0%
Max.: 0.0%
Default: 50%
Min.: 0
Max.: 200
Default: 1.00 s
Min.: 0.00
Max.: 10.00
Default: 0
Min.: 0
Max.: 3
Default: 0
Range: 0, 1
Default: 200.0 V
<4>
Min.: 0.0
<4>
Max.: 230.0
Default: 1.50
Min.: 0.00
Max.: 10.00
Default: 1.00
Min.: 0.00
Max.: 20.00
Default: 1
Range: 0, 1
Default: 100%
Min.: 0
Max.: 150
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