YASKAWA L1000A Quick Start Manual page 74

4 Start-Up Programming & Operation
Flowchart D: PG Encoder Offset Auto-Tuning
■
The flowchart below covers Rotational and Stationary Auto-Tuning procedures used to automatically set up the PG
encoder offset. PG encoder Offset Tuning should be performed when the PG encoder offset (T2-17) is unknown, when a
PG encoder offset value has been set but problems with the speed feedback occur, or when the PG encoder is replaced.
Has all motor and PG
encoder data been
set correctly?
Set terminals H1-HC and H2-HC if Safe Disable function is used.
Set the Baseblock input (H1-
Close the motor contactor(s).
Select Initial Magnet Pole Search Parameter Auto-Tuning T2-01 = 3.
Press the Up key until "Tuning Ready" is displayed.
Press the Run key on the digital operator and wait until
Auto-Tuning is finished.
Successful?
Yes
(Stationary PG Encoder Offset
Auto-Tuning possible)
Select Stationary Encoder Offset Auto-Tuning
T2-01 = 4.
Press the Up key until "Tuning Ready" is
displayed.
Press the Run key on the digital operator
and wait until Auto-Tuning is finished.
Successful?
Yes
Open the motor contactor.
Open the Baseblock input (H1-
Open terminals H1-HC and H2-HC if used during the normal sequence.
Recouple the motor (ropes) to the load if decoupled for tuning.
FINISH
<1> If an LED operator is used, the display shows "
<2> If an LED operator is used, the display shows "
72
START
No
Yes
= 8/9) if used.
<1>
No - "Er-22"
Rotational PG Encoder Offset Auto-Tuning necessary
Tuning
<1>
Refer to
No
Auto-Tuning Fault Detection
Tuning
on page 140
Remove the Fault/Alarm source
and repeat Auto Tuning.
= 8/9) if used.
".
Figure 37 PG Encoder Offset Auto-Tuning
Set the motor and PG encoder data manually or
perform motor data Auto-tuning.
<2>
Uncouple motor and the mechanical system
of the elevator (remove ropes).
Select Rotational PG Encoder Offset
Press the Up key until "Tuning Ready" is
Press the Run key on the digital operator
.
and wait until Auto-Tuning is finished.
".
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
necessary for driving the motor.
Change the PG option card and
use an absolute PG Encoder
No
Absolute PG
encoder used?
(PG-X3, Incremental
PG encoder used)
Yes
(EnDat, ...)
Auto-Tuning T2-01 = 10.
displayed.
<1>
Release the brake.
Apply the brake.
No
Auto-Tuning Fault Detection
Tuning
Successful?
Remove the Fault/Alarm source
and repeat Auto Tuning.
Yes
YEA_comm
on
Absolute PG encoder
(EnDat, ...).
Refer to
.
on page 140