3.10 Fine Tuning during Test Runs (Adjust the Control Function)
YASKAWA
TOEPYAIHV6002A HV600 Drive Programming
569
◆
Open Loop Vector Control for PM Motors
Table 3.16 Parameters for Fine Tuning the Drive (
A1-02 = 5[OLV/PM]
)
Issue
Parameter Number
Possible Solutions
Default
Recommended Setting
Unsatisfactory motor performance
E1-xx parameters, E5-xx
parameters
•
Check the settings for
E1-06,
E1-04 [Base Frequency,
Maximum Output Frequency]
.
•
Check the
E5-xx
and make sure
that all motor data has been set
correctly.
Note:
Do not set
E5-05 [PM Motor
Resistance (ohms/phase)]
to a
line-to-line resistance value.
•
Do Auto-Tuning.
-
-
Unsatisfactory motor torque and
speed response
n8-55 [Motor to Load Inertia
Ratio]
Adjust to match the load inertia
ratio of the motor and machine.
0
Near the actual load inertia ratio.
n8-45 [Speed Feedback Detection
Gain]
Decrease the setting value in
increments of 0.05.
0.80
-
C4-01 [Torque Compensation
Gain]
Adjust the setting value.
Note:
Setting this value too high can
cause overcompensation and
motor oscillation.
0.00
1.00
•
Oscillation when the motor
starts.
•
Motor stalls.
n8-51 [Pull-in Current @ Accel/
Decel]
Increase the setting value in
increments of 5%.
50%
-
•
b2-02 [DC Injection Braking
Current]
•
b2-03 [DC Inject Braking Time
at Start]
Use DC Injection Braking at start.
Note:
This can cause the motor to
rotate in reverse for
approximately 1/8 of a turn at
start.
•
b2-02: 50%
•
b2-03: 0.00 s
•
b2-02: Adjust as necessary.
•
b2-03: 0.5 s
n8-55 [Motor to Load Inertia
Ratio]
Increase the setting value.
Note:
When operating a single motor
or with a minimum amount of
inertia, setting this value too
high can cause motor
oscillation.
0
Near the actual load inertia ratio.
There is too much current during
deceleration.
n8-79 [Pull-in Current at
Deceleration]
Set
n8-79
<
n8-51
.
50%
Note:
When
n8-79 = 0
, the drive will
apply the
n8-51
setting to the
pull-in current during
deceleration.
Decrease in increments of 5%.
Stalling or oscillation occurs when
load is applied during constant
speed
n8-47 [Pull-in Current Comp Filter
Time]
Decrease the setting value in
increments of 0.2 s.
5.0 s
-
n8-48 [Pull-in/Light Load Id
Current]
Increase the setting value in
increments of 5%.
30%
-
n8-55 [Motor to Load Inertia
Ratio]
Increase the setting value.
Note:
When operating a single motor
or with a minimum amount of
inertia, setting this value too
high can cause motor
oscillation.
0
Near the actual load inertia ratio.
Hunting or oscillation
n8-45 [Speed Feedback Detection
Gain]
Increase the setting value in
increments of 0.05.
0.80
-
The drive detects
STPo [Motor
Step-Out Detected]
fault when the
load is not too high.
•
E5-09 [PM Back-EMF Vpeak
(mV/(rad/s))]
•
E5-24 [PM Back-EMF L-L
Vrms (mV/rpm)]
•
Adjust the setting value.
•
Examine the motor code on the
motor nameplate or the data
sheet, then set correct values for
E5-09
or
E5-24
.
•
Yaskawa motor
Set the motor code from the
motor nameplate.
•
Motor from another
manufacturer
Set the values from the test
report.
The drive detected stalling or
STPo
[Motor Step-Out Detected]
at high
speed and maximum output
voltage.
n8-62 [Output Voltage Limit
Level]
Set to a value lower than the actual
input voltage.
•
200.0 V
•
400.0 V
-
*1
The default setting changes when the settings for
E5-01 [Motor Code Selection]
and
o2-04 [Drive Model (KVA) Selection]
change.
