YASKAWA LA500, Technical Manual

Page: 89 / 376

Startup
Procedure
and
T
est
Run
4
4.6 Auto-Tuning
YASKAWA SIEPYEULA5001C LA500 Technical Manual 89
4.6 Auto-Tuning
WARNING! Sudden Movement Hazard. Ensure the area surrounding the drive motor and load are clear before proceeding with
Auto-Tuning. Remove main power from the drive before servicing the drive or motor. Do not touch the motor during Auto-Tuning
The drive and motor may start unexpectedly during Auto-Tuning, which could result in death or serious injury. .
Insufficient torque can cause the elevator car to move in the direction of the load, or cause the motor to behave
erratically (reverse operation, stand still, sudden accelerations, etc.).
For more information, refer to the instruction manual included with the motor.
◆
Types of Auto-Tuning
The type of Auto-Tuning used differs based on the control mode and other operating conditions. Refer to the
tables below to select the type of Auto-Tuning that bests suits the application. For directions for performing Auto-
Tuning, refer to
Start-up Procedures on page 86 with Figure 4.11 .
The drive will only show Auto-Tuning parameters that are valid for the control method that has been set in A1-02.
Table 4.4 Status of Input/Output Terminals during Auto-Tuning
Auto-Tuning Type Parameter Requirements and Benefits
Control Method
V/f
A1-02 = 0
OLV
A1-02 = 2
Rotational Auto-Tuning T1-01 = 0
• Rotational Auto-Tuning gives the most accurate results, and is recommended if
possible.
•
Motor must run freely or with light load (<30%), i.e. ropes have to be removed.
No Yes
Stationary Auto-Tuning 1 T1-01 = 1
• A motor test report listing motor data is not available.
• Automatically calculates motor parameters needed for vector control.
• Use if ropes cannot be removed. Note that the accuracy is lower than with Rotational
Auto-Tuning.
No Yes
Line-to-Line Resistance T1-01 = 2
•
Used when the motor cable exceeds 50 m.
•
Used in V/f control if drive and motor capacities differ.
•
Perform when the ropes cannot be removed from the installation for rotational auto-
tuning.
Yes Yes
The following table lists the data that must be entered for Auto-Tuning. Make sure this data is available before
starting Auto-Tuning. The necessary information is usually listed on the motor nameplate or in the motor test
report provided by the motor manufacturer.
Table 4.5 Status of Input/Output Terminals during Auto-Tuning
Input Value Input Parameter Unit
Tuning Type
Rotational
T1-01 = 0
Stationary for Line-
to-Line Resistance
T1-01 = 2
Motor Rated Power T1-02 kW Yes Yes
Motor Rated Voltage
T1-03 Vac Yes No
Motor Rated Current T1-04 A Yes Yes
Motor Rated Frequency T1-05 Hz Yes No
Number of Motor Poles T1-06 - Yes No
Motor Rated Speed T1-07 r/min Yes No
The number of motor poles (T1-06) is usually not found on the motor nameplate, but it can be calculated by: p =
(120 × f) / n
s
. Where f is the motor rated frequency and n
s
is the motor synchronous speed.
◆
Before Auto-Tuning the Drive
WARNING! Sudden Movement Hazard. When performing Rotational Auto-Tuning for motor data or PG encoder offset, always
uncouple the motor from the mechanical system (remove ropes from traction sheave). Failure to comply can cause death or
serious injury to personnel, and damage to the equipment.
WARNING! Electrical Shock Hazard. Do not touch the motor during Auto-Tuning. Lethal voltages may be present on the motor
case. Failure to comply can cause death or serious injury.
WARNING! Electrical Shock Hazard. Do not touch the motor until Auto-Tuning is completed. When doing Stationary Auto-
Tuning, the motor does not rotate, however, power is applied. Failure to comply can result in death or serious injury.
WARNING! Sudden Movement Hazard. The holding brake must remain engaged for the entire Stationary Auto-Tuning
sequence. Ensure a brake release digital output signal cannot be issued by the drive. Failure to comply can result in death or
serious injury.