7.10 Troubleshooting Without Fault Display
264
SIEPCYEUOQ2V01A Q2V Technical Manual
◆
PID Output Fault
Causes
Possible Solutions
There is no PID feedback input.
•
Examine the MFAI terminal settings.
•
Make sure that
H3-02, H3-10 = F [MFAI Function Select = PID Fbk]
.
•
Make sure that the MFAI terminal settings agree with the signal inputs.
•
Examine the connection of the feedback signal.
•
Make sure that
[b5: PID CONTROL]
is set correctly.
Note:
If there is no PID feedback input to the terminal, the detected value is 0, which causes a PID
fault and also causes the drive to operate at maximum frequency.
The detection level and the target value do not agree.
Use
H3-03, H3-11 [AI1 Gain Setting, AI2 Gain Setting]
to adjust PID target and feedback signal
scaling.
Note:
PID control keeps the difference between the target value and detection value at 0. Set the
input level for the values relative to each other.
Reverse drive output frequency and speed detection. When output frequency
increases, the sensor detects a speed decrease.
Set
b5-09 = 1 [PID Output Level Selection = Reverse output]
.
◆
The Starting Torque Is Not Sufficient
Causes
Possible Solutions
Auto-Tuning has not been done in vector control method.
Do Auto-Tuning.
The control method was changed after doing Auto-Tuning.
Do Auto-Tuning again.
Stationary Auto-Tuning for Line-to-Line Resistance was done.
Do Rotational Auto-Tuning.
◆
The Motor Rotates after the Drive Output Is Shut Off
Causes
Possible Solutions
DC Injection Braking is too low and the drive cannot decelerate correctly.
•
Increase the value set in
b2-02 [DCI Braking Current]
.
•
Increase the value set in
b2-04 [DCInj Time@Stop]
.
The stopping method makes the drive coast to stop.
Set
b1-03 = 0 or 2 [Stopping Method Selection = Ramp->Stop, DC Inj->Stop]
.
◆
The Output Frequency Is Lower Than the Frequency Reference
Causes
Possible Solutions
The frequency reference is in the Jump frequency range.
Adjust
d3-01 to d3-03 [Jump Frequency 1 to Jump Frequency 3]
and
d3-04 [Jump Frequency
Width]
.
Note:
Enabling the Jump frequency prevents the drive from outputting the frequencies specified in
the Jump range.
The upper limit for the frequency reference has been exceeded.
Set
E1-04 [Max Output Frequency]
and
d2-01 [FRef Upper Limit]
to the best values for the
application.
Note:
This calculation supplies the upper value for the output frequency:
E1-04
×
d2-01
/ 100
A large load triggered Stall Prevention function during acceleration.
•
Decrease the load.
•
Adjust
L3-02 [StallP Level@Accel]
.
L3-01 = 4 [StallP Mode@Accel = ILim Mode]
has been set.
1.
Check whether the V/f pattern and motor parameter settings are appropriate, and set them
correctly.
2.
If this does not solve the problem, and it is not necessary to limit the current level of stall
during acceleration, adjust
L3-02
.
3.
If this does not solve the problem, set
L3-01 = 2 [General Purpose]
.
The motor is rotating at this speed:
b2-01 [ZSpd/DCI Threshold]
≤ Motor Speed <
E1-09 [Min Output
Frequency]
Set
E1-09 < b2-01
.
◆
The Motor Is Making an Audible Noise
Causes
Possible Solutions
100% of the rated output current of the drive was exceeded while operating
at low speeds.
If the sound is coming from the motor, set
L8-38 = 0 [Carrier Reduction Mode = Disabled]
.
Содержание Q2V Series
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Страница 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Страница 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 143: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 143 EU Declaration of Conformity...
Страница 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Страница 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Страница 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...
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