12.10 n: Special Adjustment
938 YASKAWA SIEPC71061705H GA700 Series Technical Manual
The speed control range is 1:100. It gives sufficient speed detection at low speeds.
Note:
• It is not available with an SPM motor.
• The speed control range 1:100 is the momentary operation area. When you operate the motor continuously, make sure that the drive
capacity and motor capacity are acceptable.
■ n8-62: Output Voltage Limit Level
No.
(Hex.)
Name Description
Default
(Range)
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.
200 V Class: 200.0 V,
400 V Class: 400.0 V
(200 V Class: 0.0 to 230.0
V, 400 V Class: 0.0 to 460.0
V)
Set this parameter lower than the input power supply voltage.
Note:
• When A1-02 = 7, 8 [Control Method Selection = CLV/PM, EZOLV], this parameter is available in Expert mode.
■ n8-65: Speed Fdbk Gain @ oV Suppression
No.
(Hex.)
Name Description
Default
(Range)
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)
Adjust this parameter in these conditions:
• If there is resonance or hunting when you use the overvoltage suppression function, increase the setting value.
• If motor response is low when you use the overvoltage suppression function, decrease the setting value in 0.05-
unit increments.
■ n8-69: Speed Observer Control P Gain
No.
(Hex.)
Name Description
Default
(Range)
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)
■ n8-72: Speed Estimation Method Select
No.
(Hex.)
Name Description
Default
(Range)
n8-72
(0655)
Expert
Speed Estimation Method
Select
Selects the speed estimation method. Usually it is not necessary to change this setting.
1
(0, 1)
0 : Method 1
1 : Method 2
■ n8-74: Light Load Iq Level
No.
(Hex.)
Name Description
Default
(Range)
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 [PM Motor Rated Current (FLA)] = a setting value of 100%.
30%
(0 - 255%)
Note:
• If n8-74 > n8-75 [Medium Load Iq Level (low)], the drive will detect oPE08 [Parameter Selection Error].
• The change is linear between n8-74 and n8-75 and the level of the pull-in current from n8-48 to n8-78 [Medium Load Id Current].
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