Parameter Details
12
12.9 n: SPECIAL
SIEPCYEUOQ2V01A Q2V Technical Manual 691
■ n8-76: Id Switching Filter Time
No.
(Hex.)
Name Description
Default
(Range)
n8-76
(05CD)
Expert
Id Switching Filter Time
Sets the filter time constant for the d-axis current reference. Usually it is not necessary to change
this setting.
200 ms
(0 - 5000)
■ n8-77: Hvy Load Iq Level
No.
(Hex.)
Name Description
Default
(Range)
n8-77
(05CE)
Expert
Hvy Load Iq Level
Set n8-49 [Heavy Load Id Current] to the percentage of load current (q-axis current) that you will
apply, where E5-03 [PM Mot Rated Current (FLA)] = a setting value of 100%.
90%
(0 - 255%)
Note:
The change is linear between n8-75 [Mid Load Iq Level (Low)] and n8-77 and the level of the pull-in current from n8-78 [Mid Load Id
Current] to n8-49 [Heavy Load Id Current].
■ n8-78: Mid Load Id Current
No.
(Hex.)
Name Description
Default
(Range)
n8-78
(05F4)
RUN
Expert
Mid Load Id Current
Sets the level of the pull-in current as a percentage, where E5-03 [PM Mot Rated Current (FLA)]
= 100%.
0%
(0 - 255%)
■ n8-79: Pull-In Curr@Deceleration
No.
(Hex.)
Name Description
Default
(Range)
n8-79
(05FE)
Pull-In Curr@Deceleration
Sets the pull-in current that can flow during deceleration as a percentage of the E5-03 [PM Mot
Rated Current (FLA)].
50%
(0 - 200%)
If overcurrent occurs during deceleration, slowly decrease the setting in 5% increments.
Note:
When n8-79 = 0, the drive will use the value set in n8-51 [Ac/Dec Pull-In Current].
■ n8-84: Polarity Det Current
No.
(Hex.)
Name Description
Default
(Range)
n8-84
(02D3)
Expert
Polarity Det Current
Sets the current that the drive uses to estimate the initial motor magnetic pole as a percentage
where E5-03 [PM Mot Rated Current (FLA)] = 100%.
100%
(0 - 150%)
WARNING! Sudden Movement Hazard. Make sure that the polarity is correct before you send a Run command. If the drive
incorrectly detects the polarity, the drive can rotate in the direction opposite of the Run command and cause serious injury or
death.
When you use a Yaskawa motor, check the motor nameplate for an “Si” value and set this parameter ≥ "Si × 2".
Consult the motor manufacturer for information about maximum setting values.
Find the Polarity of Magnetic Poles
When you start operation, the drive estimates the magnetic poles and finds the polarity of the magnetic poles.
Use U6-57 [n8-84: PoleDis IdDifVal] to make sure that the magnetic pole estimate was correct.
When you do High Frequency Injection Auto-Tuning, the drive automatically sets n8-84.
■ n8-87: O/P VoltLim Method
No.
(Hex.)
Name Description
Default
(Range)
n8-87
(02BC)
O/P VoltLim 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
(0, 1)
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