11.10 n: SPECIAL
478 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual
◆ n7: SIMPLE VECTOR TUNING
No.
(Hex.)
Name Description
Default
(Range)
Ref.
n7-01
(3111)
Expert
LoFreq Damping Gain
Sets the oscillation suppression gain for the low speed range.
1.0
(0.1 - 10.0)
817
n7-05
(3115)
Expert
TrqCtrl Response Gain
Sets the response gain related to changes in the load.
1.00
(0.10 - 10.00)
817
n7-07
(3117)
Expert
Speed Calc.Gain1
Sets the speed calculation gain during usual operation.
Usually it is not necessary to change this setting.
15.0 Hz
(1.0 - 50.0 Hz)
817
n7-08
(3118)
Expert
Speed Calc.Gain2
Sets the speed calculation gain during a speed search.
25.0 Hz
(1.0 - 50.0 Hz)
817
n7-10
(311A)
Expert
Pull-in SwitchSpeed
Sets a speed range proportional to the rated frequency that enables pull-in current
commands. Drive rated frequency = 100% value. If there is a large quantity of
oscillation when you operate in the low speed range, increase the setting value.
10.0%
(0.0 - 100.0%)
817
n7-11
(311B)
Expert
DrvModeSwitchHystere
sis Band
Usually it is not necessary to change this setting. Sets the hysteresis level for Switching
Speed set in n7-10 [Pull-in Current Switching Speed].
When the speed is lower than n7-10 + n7-11 during acceleration, the drive enables pull-
in current.
Note:
• When the drive accelerates, it enables these settings:
–Motor speed ≤ n7-10 + n7-11: n8-51 [Ac/Dec Pull-In Current]
–Motor speed > n7-10 + n7-11: b8-01 [eSave Ctrl Selection]
• If there is a large quantity of oscillation when you operate in the low speed range,
increase the setting value.
• When it is most important to save energy in the low speed range, decrease the
setting value.
5.0%
(1.0 - 20.0%)
818
n7-13
(311D)
Expert
DrvMethSwitchTime
Sets a time to enable the pull-in current commands.
If there is a large quantity of oscillation at speeds around n7-10 [Pull-in SwitchSpeed],
decrease the setting in 20 ms decrements.
100 ms
(0 - 1000 ms)
818
n7-17
(3122)
Resist.Temp.
Compensation
Sets the function to adjust for changes in the motor resistance value caused by changes
in the temperature.
1 : Invalid
2 : Valid (1 Time)
3 : Valid (Every Time)
2
(1 - 3)
818
◆ n8: PM MOTOR CONTROL TUNING
No.
(Hex.)
Name Description
Default
(Range)
Ref.
n8-01
(0540)
Expert
PolPos Detection
Current
Sets the Initial Rotor Position Estimated Current as a percentage where E5-03 [PM Mot
Rated Current (FLA)] = 100%. Usually it is not necessary to change this setting.
50%
(0 - 100%)
818
n8-02
(0541)
Expert
Pole Align Current Level
Sets the current at the time of polar attraction as a percentage where motor rated current
= 100%. Usually it is not necessary to change this setting.
80%
(0 - 150%)
818
n8-03
(0542)
Current Start Time
Sets the length of the Current Starting Time, which is used for Z Pulse Offset Tuning.
Usually it is not necessary to change this parameter.
1.5 s
(1.5 - 5.0 s)
819
n8-04
(0543)
Expert
Pole Align Time
Sets the length of the Polar Attraction Time, which is used for Z Pulse Offset Tuning.
Usually it is not necessary to change this setting.
1.5 s
(1.5 - 5.0 s)
819
n8-11
(054A)
Observ.Calc Gain2
Sets the gain for speed estimation. Usually it is not necessary to change this setting.
Determined by n8-72
(0.0 - 1000.0)
819
n8-14
(054D)
Expert
Polar Comp Gain3
Sets the gain for speed estimation. Usually it is not necessary to change this setting.
2.000
(0.000 - 20.000)
819
n8-15
(054E)
Expert
Polar Comp Gain4
Sets the gain for speed estimation. Usually it is not necessary to change this setting.
2.000
(0.000 - 20.000)
819
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