4.11 Fine Tuning during Test Runs (Adjust the Control Function)
134
SIEPCYEUOQ2V01A Q2V Technical Manual
◆
Fine-Tuning Open Loop Vector Control for PM Motors
Table 4.19 Parameters for Fine Tuning the Drive (
A1-02 = 5 [PM OLVector]
)
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, Max
Output Frequency]
.
•
Check the
E5-xx
and make sure that all motor data has been
set correctly.
Note:
Do not set
E5-05 [PM Mot Resistance (Ohms/Phase)]
to a
line-to-line resistance value.
•
Do Auto-Tuning.
-
-
Unsatisfactory motor torque and speed
response
n8-55 [Load Inertia] Adjust to match the load inertia ratio of the motor and machine.
0
Near the actual load
inertia ratio.
n8-45 [SpdFbck
Det.Gain]
Decrease the setting value in increments of 0.05.
0.80
-
C4-01 [Trq Comp
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 [Ac/Dec Pull-
In Current]
Increase the setting value in increments of 5%.
50%
-
•
b2-02 [DCI
Braking Current]
•
b2-03 [DCInj
Time@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 [Load Inertia]
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
Curr@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
Comp.Time
Constant]
Decrease the setting value in increments of 0.2 s.
5.0 s
-
n8-48 [Pull-In
Current (for PM
Motors)]
Increase the setting value in increments of 5%.
30%
-
n8-55 [Load Inertia]
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 [SpdFbck
Det.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
BackEMF Vpeak
(mV/(rad/ s))]
•
E5-24 [PM
BackEMF 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 Volt
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 [PM Mot Code Selection]
and
o2-04 [Drive KVA Selection]
change.
Summary of Contents for Q2V Series
Page 2: ...This Page Intentionally Blank 2 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 12: ...12 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Page 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Page 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...