Yaskawa CIMR-UU4A0216F [328/644] Fine tuning advanced open loop vector control for pm motors

Yaskawa CIMR-UU4A0040A [328/644] Fine tuning advanced open loop vector control for pm motors
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Fine-Tuning Advanced Open Loop Vector Control for PM Motors
Table 6.5 Parameters for Fine-Tuning Performance in AOLV/PM
Problem Parameter No. Corrective Action Default
Suggested
Setting
Poor torque or speed
response
Motor hunting and
oscillation
ASR Proportional
Gain 1
(C5-01)
ASR Proportional Gain 2
(C5-03)
Gradually increase the setting in increments of 5 if motor torque
and speed response are too slow.
Reduce the setting if motor hunting and oscillation occur.
Only adjust parameter C5-03 when C5-05 > 0.
10.00
5.00 to 30.00
<1>
Poor torque or speed
response
Motor hunting and
oscillation
ASR Integral Time 1
(C5-02)
ASR Integral Time 2
(C5-04)
Reduce the setting if motor torque and speed response are too
slow.
Increase the setting if motor hunting and oscillation occur.
Only adjust parameter C5-04 when C5-05 > 0.
0.500 s
0.300 to
1.000 s
<1>
Difficulty maintaining the
ASR proportional gain or
the
integral time at the low
or high end of the speed
range
ASR Gain Switching
Frequency (C5-07)
Switch the drive between two different ASR proportional gain and
integral time settings based on the output frequency.
0.0%
0.0 to
Max r/min
Motor hunting and
oscillation
ASR Primary Delay
Time Constant (C5-06)
Increase the setting if the load is less rigid and subject to oscillation. 0.010 s
0.016 to
0.035 s
<1>
Motor stalling makes
normal operation
impossible
Motor parameters
(E1-oo, E5-oo)
Check the motor parameter settings. - -
<1> Optimal settings will differ between no-load and loaded operation.
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Fine-Tuning Closed Loop Vector Control for PM Motors
Table 6.6 Parameters for Fine-Tuning Performance in CLV/PM
Problem Parameter No. Corrective Action Default
Suggested
Setting
Poor torque or speed
response
Motor hunting and
oscillation
ASR Proportional Gain 1
(C5-01)
ASR Proportional Gain 2
(C5-03)
Gradually increase the setting in increments of 5 if motor torque
and speed response are too slow.
Reduce the setting if motor hunting and oscillation occur.
Perform ASR Gain Auto-Tuning if possible
20.00
10.00 to
50.00
<1>
Poor torque or speed
response
Motor hunting and
oscillation
ASR Integral Time 1
(C5-02)
ASR Integral Time 2
(C5-04)
Reduce the setting if torque and speed response are too slow.
Increase the setting if motor hunting and oscillation occur.
0.500 s
0.300 to
1.000 s
<1>
Difficulty maintaining the
ASR proportional gain or
the integral time at the
low or high end of the
speed range
ASR Gain Switching
Frequency (C5-07)
Switch the drive between two different ASR proportional gain and
integral time settings based on the output frequency.
0.0%
0.0 to
Max r/min
Motor hunting and
oscillation
ASR Primary Delay
Time Constant (C5-06)
Increase the setting if the load is less rigid and subject to oscillation. 0.016 s
0.004 to
0.020 s
<1>
Motor stall makes normal
operation impossible
Motor parameters (E1-
oo, E5-oo)
Check the motor parameter settings. - -
Overshoot or undershoot
at speed changes with
high inertia load
Feed Forward Control
Selection (n5-01)
Inertia Auto-Tuning
(T2-01 = 8)
Set parameter n5-01 to 1 to Enable Feed Forward then perform
Inertia
Tuning.
Manually
set parameters C5-17, C5-18, and n5-03
if Inertia Tuning is not possible.
0 1
<1> Optimal settings will differ between no-load and loaded operation.
6.2 Motor Performance Fine-Tuning
328
YASKAWA ELECTRIC SIEP C710636 04C U1000 Industrial MATRIX Drive Technical Manual

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