SIEPCYEUOQ2V01A Q2V Technical Manual
459
Figure 12.24 Speed Search after Baseblock
Note:
After you return power, the drive waits for the time set in
b3-05
. If power loss is longer than the time set in
L2-03
, the drive will start
Speed Search when the time set in
b3-05
is expired after the power recovery.
2.
Current Injection
If there is not sufficient residual voltage in the motor, the drive does Current Injection. The drive injects the
quantity of DC current set in
b3-06 [Speed Curr Lev1 for Estimation]
into the motor windings to estimate the
motor speed and direction of rotation. The drive outputs the estimated motor speed as frequency, then uses the
deceleration rate set in
L2-04
to increase the voltage. When the output voltage aligns with the V/f pattern, the
drive accelerates or decelerates the motor to the frequency reference.
Figure 12.25 Speed Search Selection at Start
Note:
Set the lower limit of the delay time to
b3-05
for when Speed Search starts.
■
Speed Search and Operation Conditions
These conditions apply to Speed Search operation. When
A1-02 = 0, 2 [Control Method = V/f Control,
OLVector]
, set
b3-24 [SpSrch Method Selection]
before you do Speed Search.
•
Do Speed Search with each Run Command
The drive ignores a Speed Search command from the external terminals.
•
Use an MFDI to do an External Speed Search Command
To use an MFDI to do Speed Search, input the Run command at the same time that terminal DIx set for Speed
Search activates, or after Speed Search activates.
Set Speed Search to
H1-xx
to do the function externally. You cannot set external Speed Search 1 and 2 at the
same time.
Table 12.11 Execute Speed Search via the Digital Input Terminals
H1-xx Setting
Name
Current Detection 2
Speed Estimation
67
SpdSrch Fmax
ON: Speed Search starts from
E1-04 [Max Output
Frequency]
.
External Speed Search commands 1 and 2 work the
same.
The drive estimates the motor speed, then starts Speed
Search from the estimated speed.
68
SpdSrch Fref
ON: Speed Search starts from the frequency reference
immediately before you input the Speed Search
command.
•
Do Speed Search with Each Auto Restart
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...