YASKAWA L1000A Quick Start Manual page 77

Auto-Tuning of PG-E3 Encoder Characteristics
This feature optimizes the drive settings for the characteristics of the PG-E3 speed-control option card for the ERN1387
encoder (manufactured by HEIDENHAIN) while rotating the motor. Perform Auto-Tuning to obtain accurate position
data from the motor rotor for driving a PM motor. This type of Auto-Tuning automatically sets the characteristics of the
PG-E3 option card for the ERN1387 encoder in parameters F1-66 to F1-81 (Encoder Adjust 1 to 16).
Note: 1. The motor rotates during execution of Auto-Tuning of PG-E3 encoder characteristics. Before starting, refer to the drive technical
manual.
2. Auto-Tuning of PG-E3 encoder characteristics adjusts the unique characteristics of the ERN1387 encoder connected to the drive by
using a PG-E3 option card. This type of tuning should be performed when setting up the drive or after replacing the encoder or drive.
The signal lines between the PG-E3 option card and the ERN1387 encoder must be connected between the R+ and R- terminals while
this type of tuning is performed.
3. The setting values of parameters F1-66 to F1-81 are reset to factory default values when A1-03 is set to 2220. The setting values of
parameters F1-66 to F1-81 are modified at completion of Auto-Tuning of PG-E3 encoder characteristics.
Auto-Tuning Interruption and Fault Codes
■
If tuning results are abnormal or the STOP key is pressed before completion, Auto-Tuning will be interrupted and a fault
code will appear on the digital operator.
Figure 34
Auto-Tuning Operation Example
■
The following example demonstrates Rotational Auto-Tuning when using OLV (A1-02 = 2).
Selecting the Type of Auto-Tuning
1. Turn on the power to the drive. The initial display appears.
2.
Press or until the Auto-Tuning display appears.
3.
Press to begin setting parameters.
4.
Press to select the value for T1-01.
5.
Save the setting by pressing
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
DIGITAL OPERATOR JVOP-180
ALM
- A.TUNE - DRV Rdy
DRV
REV DRV FOUT
Tune Proceeding
X.XX Hz/ X.XXA
FWD
During Auto-Tuning
Figure 38 Auto-Tuning Aborted Display
Step
.
4 Start-Up Programming & Operation
ALM
DIGITAL OPERATOR JVOP-180
- MODE - DRV
Er-03
STOP key
YEA_
FWD RESET
common
Auto-Tuning Aborted
Display/Result
- MODE - DRV Rdy
Speed Ref (OPR)
U1-01= 0.00%
U1-02= 0.00% RSEQ
U1-03= 0.00A LREF
FWD FWD/REV
- MODE - PRG
Auto-Tuning
AUTO
HELP FWD DATA
- A.TUNE - PRG
Tuning Mode
T1-01= 0 ∗0∗
Standard Tuning
ESC FWD DATA
- A.TUNE - PRG
Tuning Mode
T1-01= 0 ∗0∗
Standard Tuning
"0"
FWD
Entry Accepted
75
4