3.12 n: Special Adjustment
160 YASKAWA TOEPYAIGA5001A GA500 DRIVE MAINTENANCE & TROUBLESHOOTING
No.
(Hex.)
Name Description
Default
(Range)
n8-87
(02DA)
Output Voltage Limit
Method
Sets the method of output voltage limit. If there is vibration in the constant output range, set
Feedforward Method. Usually it is not necessary to change this setting.
0 : Feedback Method
1 : Feedforward Method
0
(0, 1)
n8-88
(02BD)
Vout Limit Switching Level Sets the current level at which output voltage limit sequence selection occurs as a percentage where
the motor rated current is 100%. Normally there is no need to change this setting.
Note:
Parameter A1-02 [Control Method Selection] selects which parameter is the motor rated current.
• A1-02 = 5, 6 [OLV/PM, AOLV/PM]: E5-03 [PM Motor Rated Current (FLA)]
• A1-02 = 8 [EZOLV]: E9-06 [PM Motor Rated Current (FLA)]
400%
(0 - 400%)
n8-89
(02BE)
Vout Limit Switching
Hysteresis
Sets the hysteresis width of the current level at which output voltage limit sequence selection occurs
as a percentage where the motor rated current is 100%. Normally there is no need to change this
setting.
Note:
Parameter A1-02 [Control Method Selection] selects which parameter is the motor rated current.
• A1-02 = 5, 6 [OLV/PM, AOLV/PM]: E5-03 [PM Motor Rated Current (FLA)]
• A1-02 = 8 [EZOLV]: E9-06 [PM Motor Rated Current (FLA)]
3%
(0 - 400%)
n8-90
(02BF)
Vout Limit Switching Speed Sets the speed level at which output voltage limit sequence selection occurs as a percentage where
the maximum output frequency is 100%. Usually it is not necessary to change this setting.
Note:
Parameter A1-02 [Control Method Selection] selects which parameter is the maximum output
frequency.
• A1-02 = 5, 6 [OLV/PM, AOLV/PM]: E1-04 [Maximum Output Frequency]
• A1-02 = 8: E9-02 [Motor Max Revolutions]
200%
(0 - 200%)
n8-91
(02F7)
Id Limit at Voltage
Saturation
Sets the limit value of feedback output voltage limit Id operation. Enabled when n8-87 = 0 [Output
Voltage Control Selection = Speed Feedback Form]. Usually it is not necessary to change this
setting.
-50%
(-200 - 0%)
n8-94
(012D)
Expert
Flux Position Estimation
Method
Sets the criteria that the drive uses to find changes in speed or load. Usually it is not necessary to
change this setting.
0 : Softstarter
1 : Speed Feedback
1
(0, 1)
n8-95
(012E)
Expert
Flux Position Est Filter Time Sets the time constant of the filter used for the recognition criteria value for speed and load changes.
Usually it is not necessary to change this setting.
30 ms
(0 - 100 ms)
◆ nA: PM Motor Control Tuning
No.
(Hex.)
Name Description
Default
(Range)
nA-01
(3129)
Expert
Observer Calc Gain 3 Sets the gain for speed estimation. Usually it is not necessary to change this setting. 30.0
(0.0 - 1000.0)
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