3 Startup Procedure and Test Run
164
YASKAWA ELECTRIC
SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
•
Speed feedback detection-use
F1-xx
(only with Closed Loop Vector Control)
Note:
Stationary Auto-Tuning is used as a replacement measure when Rotational Auto-Tuning cannot be carried out. Consequently, a large
discrepancy between the measured results and the motor characteristics could be observed when the Auto-Tuning is complete. After
performing Stationary Auto-Tuning, check the parameters for the measured motor characteristics.
Table 3.8 Types of Auto-Tuning for Induction Motors
Mode
Parame
ter
Set
tings
Application Conditions and Benefits
Applicable Control Methods
(A1-02 Value)
V/f
(0)
CL-V/f
(1)
OLV
(2)
CLV
(3)
AOLV
(4)
Rotational Auto-
Tuning
T1-01 =
0
•
When motor can be decoupled from machinery and
rotate freely while Auto-Tuning is performed
•
When running motors having fixed output
characteristics
•
When using motors requiring high-precision control
Rotational Auto-Tuning gives the most accurate
results, and is recommended if possible.
•
When motor and load cannot be decoupled but the
motor load is below 30%
-
-
x
x
x
Stationary Auto-
Tuning
T1-01 =
1
•
When motor and load cannot be decoupled and the
motor load is greater than 30%
•
When information from the motor test report or
nameplate is not available
With Stationary Auto-Tuning, the drive remains
stopped while it is energized for about 1 minute.
During this time the necessary motor parameters are
automatically measured.
•
When operating the motor with a light load after
Auto-Tuning
It is possible to have the drive automatically calculate
the motor parameter settings needed for vector
control. Set
T1-12 = 1 [Test Mode Selection = Yes]
to
perform the test run after Auto-Tuning.
-
-
x
x
x
Stationary Auto-
Tuning for Line-to-
Line Resistance
T1-01 =
2
•
After Auto-Tuning was carried out, the wiring
distance between the drive and motor changed by 50
m or more.
•
When the wiring distance is 50 m or more in the V/f
Control mode.
•
When the motor output and drive capacity are
different.
x
x
x
x
x
Input Data for Induction Motor Auto-Tuning
To perform Auto-Tuning, input data for the items marked with
“
x
”
in the following chart. Before starting Auto-
Tuning, prepare the motor test report or nameplate to check.
Table 3.9 Input Data for Induction Motor Auto-Tuning
Input Data
Parameters
Unit
Auto-Tuning Mode
(T1-01 Value)
Rotational Auto-
Tuning
(0)
Stationary Auto-
Tuning
(1)
Stationary Auto-
Tuning for Line-to-
Line Resistance
(2)
Motor Rated Power
T1-02
kW
x
x
x
Motor Rated Voltage
T1-03
V
x
x
-
Motor Rated Current
(FLA)
T1-04
A
x
x
x
Motor Base
Frequency
T1-05
Hz
x
x
-
Number of Motor
Poles
T1-06
-
x
x
-
Motor Base Speed
T1-07
min
-1
x
x
-
Encoder Pulse Count
(PPR)
T1-08
-
x
x
-