YASKAWA Lift Inverter L1000V, Technical Manual

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80 YASKAWA EUROPE SIEP YASKAWA AC Drive L1000V Technical Manual
4.5 Auto-Tuning
4.5 Auto-Tuning
WARNING! Sudden Movement Hazard. The drive and motor may start unexpectedly during Auto-Tuning, which could result in death
or serious injury. 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.
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.
u
Types of Auto-Tuning
The drive offers two different types of Auto-Tuning for induction motors. 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. Directions for performing Auto-Tuning are listed in
Start-Up Flowcharts on page 76 .
Note: The drive will only show Auto-Tuning parameters that are valid for the control mode that has been set in A1-02.
NOTICE: Equipment Hazard. Rotational Auto-Tuning will not function properly if a holding brake is engaged on the load. Failure to
comply could result in improper operation of the drive. Ensure the motor can freely spin before beginning rotational Auto-Tuning.
This feature automatically sets the V/f pattern and motor parameters E1- and E2- for an induction motor.
Table 4.4 Types of Auto-Tuning for Induction Motors
Table 4.5 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. Also refer to pages
76 and 79 for details on Auto-Tuning process and selections.
Table 4.5 Auto-Tuning Input Data
The number of motor poles (T1-06) is usually not found on the motor nameplate, but it can be calculated by:
p = (120 x f) / n
s
Where f is the motor rated frequency and n
s
is the motor synchronous speed.
Type Setting Requirements and Benefits
Control Mode (A1-02)
V/f (0) OLV (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 for
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
Input Value Input Parameter Unit
Tuning Type (T1-01)
0
Rotational
2
Stationary for Line-to-
Line Resistance
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