YASKAWA L1000A Quick Start Manual page 23

• If the value in U1-05 is negative, alter the setting of parameter F1-05.
Note:
Always set the motor rotation direction prior to the encoder rotation direction. Refer to
page 22.

Digital Operator Display Unit Selection
The drive allows to choose between different display units for speed related parameters and monitors, acceleration and
deceleration ramps and jerk settings. The units can be selected using parameter o1-03 like shown below.
o1-03 Setting
0
1 (default)
2
3
4
5
When using setting 4 or 5 certain mechanical data have to be programmed to the drive prior to changing o1-03. Perform
the following steps.
1.
Make sure motor data are set up correctly. Verify the setting of the maximum output frequency in parameter E1-
04 and the setting for the number of motor poles in parameter E2-04 or E5-04.
2.
Set the traction sheave diameter in units of mm to parameter o1-20.
3.
Set the correct roping to parameter o1-21.
4.
If a mechanical gear is used, set the gear ratio (n
make sure o1-22 is set to 1.0.
5.
Change parameter o1-03 to setting 4 or 5. The unit and setting values of related parameters will be changed
automatically.
Refer to Parameter Table on page 37

Motor Data and Encoder Auto-Tuning

Auto-Tuning Types
Auto-Tuning automatically programs the drive's motor and motor control related parameters. Select between Auto-
Tuning methods listed below.
Motor Data Tuning Modes for Induction Motors (A1-02 = 0, 2, or 3)
Type
Rotational Auto-
Tuning
Stationary Auto-
Tuning 1
Stationary Auto-
Tuning for Line-to-
Line Resistance
Stationary Auto-
Tuning 2
YASKAWA ELECTRIC TOEP C710616 33G AC Drive L1000A - Quick Start Guide
Speed Setting/Monitors
(d1-, U1-02, U1-02,...)
0.01 Hz
0.01%
1 rpm
User defined
0.01 m/s
0.01 m/s
for details.
Setting
• Rotational Auto-Tuning gives the most accurate results, and is therefore
highly recommended if possible.
T1-01 = 0
• Motor must run freely or with light load (<30%), i.e. ropes have to be
removed.
• Automatically calculates motor parameters needed for vector control.
T1-01 = 1 • Use if ropes cannot be removed. Note that the accuracy is less then with
Rotational Auto-tuning.
• Used for V/f Control or in vector control modes when the drive was set up
T1-01 = 2
properly before and the motor cable has changed.
• A motor test report is available. The no-load current and the rated slip have
must be entered from the test report, all other motor-related parameters are
T1-01 = 4 calculated automatically.
• Use if ropes cannot be removed and if slip and no-load current data are
available.
Display Unit
Accel/Decel Ramps
(C1-)
0.01 s
0.01 m/s 2
/n ) to parameter o1-22. If a gearbox is not used,
Motor Traction Sheave
Requirements and Benefits
Motor Rotation Direction Setup on
Jerk Settings
(C2-)
0.01 s
0.01 m/s
Control Mode (A1-02)
V/f (0) OLV (2) CLV (3)
No
No
Yes
No
5 Start Up
3
Yes Yes
Yes Yes
Yes Yes
Yes Yes
EN 23