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Subchart A-2: High Performance Operation Using OLV or CLV
Flowchart A2 in Figure 4.6 describes the setup procedure for high-performance with Open Loop Vector Control or Closed
Loop Vector Control, which is appropriate for applications requiring high starting torque and torque limits.
Note: Although the drive sets parameters for the PG encoder during Auto-Tuning, sometimes the direction of the motor and direction of the PG
get reversed. Use parameter F1-05 to switch the direction of the PG so that it matches the motor direction.
Is the load less than
30% of the rated load
for the motor?
YES
NO
From
Flowchart
A
Possible for motor to
rotate during tuning? <1>
<2>
Motor test report/
data sheet available?
Perform Stationary
Auto-Tuning 2 (T1-01 = 4)
Perform Rotating
Auto-Tuning (T1-01 = 0)
NO
YES
Is there a PG
encoder on the
motor?
Feed Forward
KEB 2
Perform Inertia Tuning
(T1-01 = 8)
<4>
Should the
drive set ASR gain
automatically?
Return to
Flowchart
A
Run the motor without load; check the rotation direction and operation.
Verify external signal commands to the drive work as desired.
Run the operation in test mode for Auto-Tuning 3.
Connect the load to the motor.
Perform ASR gain tuning.
(T1-01 = 9)
<5>
Run the machine and check for desired operation.
NO
NO
YES
YES
YES
YES
NO
Does the application require
any of the following drive functions?
Perform Stationary
Auto-Tuning 1 (T1-01 = 1)
Perform Stationary
Auto-Tuning 3 (T1-01 = 5)<3>
YES
NO
NO
Is the load less than
30% of the rated load
for the motor?
Figure 4.6 Flowchart A2: High Performance Operation Using OLV or CLV
<1>
Decouple the load from the motor to properly perform Rotational Auto-Tuning.
<2> Rotational Auto-Tuning can still be performed if the load is 30% or less, though Stationary Auto-Tuning may yield better control
performance.
<3> Make sure the motor and load can run freely (i.e., if a brake is mounted, make sure it is released).
<4> ASR Gain Tuning automatically performs Inertia Tuning and sets parameters related to Feed Forward and the KEB Ride-Thru
function.
4.3 Start-Up Flowcharts
130
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
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