Yaskawa CIMR-AU 200V Drives - Manual (Page 326)

No.
(Addr.
Hex)
Name LCD Display Description Values Page
n8-54
(056D)
Voltage Error
Compensation Time
Constant
PM V Error CompT
Adjusts the value when hunting occurs at low speed. If hunting
occurs with sudden load changes, increase n8-54 in increments
of 0.1. Reduce this setting if oscillation occurs at start.
Default: 1.00 s
Min.: 0.00
Max.: 10.00
–
n8-55
(056E) Load Inertia
PMLoad wk2 Ratio
0: Less than 1:10
1: 1:10 to 1:30
2: 1:30 to 1:50
3: More than 1:50
Sets the ratio between motor 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
Default: 0
Min.: 0
Max.: 3
–
n8-57
(0574)
High Frequency
Injection
PM Harm Inj Sel
0: Disabled
1: Enabled
0: Disabled. Disable when using an SPM motor.
1: Enabled. Use this setting to enhance the speed control range
when using an IPM motor.
Default: 0
Range: 0, 1
–
n8-62
(057D)
Output Voltage Limit
(for PM Motors)
PM Vout Limit
Prevents output voltage saturation. Should be set just below the
voltage provided by the input power supply.
Default: 200.0
V
<4>
Min.: 0.0
Max.: 230.0
<4>
–
n8-65
(065C)
Speed Feedback
Detection Control Gain
during ov Suppression
SFdbk G @OV Supp
Sets the gain used for internal speed feedback detection during
ov suppression.
Default: 1.50
Min.: 0.00
Max.: 10.00
–
n8-69
(065D) Speed Calculation Gain SpdSrch Gain
Sets the proportional gain for PLL control of an extended
observer.
There is normally no need to change this parameter from the
default value.
Default: 1.00
Min.: 0.00
Max.: 20.00
–
n8-72
(0655)
<1>
Speed Estimation
Method Selection
Spd Est method
0: Conventional
1: A1000 method
Sets the method to be used for estimating the speed.
0: Conventional method
1: A1000 method
There is normally no need to change this parameter from the
default value.
Note: This parameter is not available in models 4A0930
and 4A1200.
Default: 1
Range: 0, 1
–
n8-84
(02D3)
Initial Polarity
Estimation Timeout
Current
Polarity Det Curr
Sets the current to determine polarity for the initial polarity
calculation as a percentage of the motor rated current.
100% = Motor rated current
Note: If an “Si” value is listed on a Yaskawa motor
nameplate, set n8-84 to “Si” value x 2.
Default: 100%
Min.: 0
Max.: 150
–
<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.
B.9 n: Special Adjustment
326 YASKAWA ELECTRIC TOEP C710616 41E YASKAWA AC Drive - A1000 Quick Start Guide