Winding diameter calculation setting
180
WINDING DIAMETER COMPENSATION FUNCTION
Speed control proportional gain selection (Pr.639 to Pr.644)
• Speed control proportional gain at vector control and Real sensorless vector control can be changed based on a winding
diameter calculation result.
• This function is activated when two or more settings of
Pr.641 to Pr.644 (speed control proportional gain 1 to 4)
are set.
If two or more setting are not set,
Pr.820 Speed control P gain 1
(
Pr.830 Speed control P gain 2
) is valid regardless of
the winding diameter.
• A machine operates at 33% when
Pr.639
= "9999", at 66% when
Pr.640
= "9999".
• The following graph shows the value of speed control proportional gain when two settings are made.
NOTE
• When
Pr.639
=
Pr.640
, larger gain between proportional gain 2 and proportional gain 3 becomes valid.
Speed control proportional gain disabled signal (X124 signal)
• Use the Speed control proportional gain disabled (X124) signal to disable the
Pr.641 to Pr.644
settings.
• To assign the X124 signal, set "124" in any of
Pr.178 to Pr.189 (input terminal function selection).
X1 =
((Maximum diameter - Minimum diameter)
×
Pr.639
/100) + Minimum diameter
X2 =
((Maximum diameter - Minimum diameter)
×
Pr.640
/100) + Minimum diameter
Winding diameter
calculation
X124
Speed control gain
Disabled
OFF
Pr.820/Pr.830
ON
Pr.820/Pr.830
Enabled
OFF
Pr.641 to Pr.644
ON
Pr.820/Pr.830
Pr
.
1236
(Pr
.
1238, Pr
.
1240, Pr
.
1242)
Minimum diameter
Pr
.
1235
(Pr
.
1237, Pr
.
1239, Pr
.
1241)
Maximum diameter
Small
Large
Medium
Pr.644
(Proportional gain 4)
Speed control proportional
(P) gain (%)
Pr.643
(Proportional gain 3)
Pr.642
(Proportional gain 2)
Pr.641
(Proportional gain 1)
Winding diameter (mm)
X1
X2
Pr.1236
(Pr.1238/Pr.1240/Pr.1242)
Minimum diameter
Pr.1235
(Pr.1237/Pr.1239/Pr.1241)
Maximum diameter
Small
Large
Medium
Pr.644
(Proportional gain 4)
Speed control proportional
(P) gain (%)
Pr.643
(Proportional gain 3)
Winding diameter (mm)
X1
X2
Содержание A800 Plus Series
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