Before Auto-Tuning The Drive - YASKAWA AC Drive-A1000 Technical Manual

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Before Auto-Tuning the Drive

Check the items below before Auto-Tuning the drive.
n Basic Auto-Tuning Preparations
• Auto-Tuning requires the user to input data from the motor nameplate or motor test report. Make sure this data is available
before Auto-Tuning the drive.
• For best performance, the drive input supply voltage must be at least equal to or greater than the motor rated voltage.
Note: Better performance is possible when using a motor with a base voltage that is 60 V lower than the input supply voltage. This is particularly
important when operating the motor above 90% of base speed, where high torque precision is required.
• To cancel Auto-Tuning, press the STOP key on the digital operator.
• When using a motor contactor, make sure it is closed throughout the Auto-Tuning process.
• When using Auto-Tuning for motor 2, make sure motor 2 is connected to the drive output when performing the tuning.
Table 4.21 describes digital input and output terminal operation while Auto-Tuning is executed.
Motor Type
Rotational Auto-Tuning
Stationary Auto-Tuning 1
IM Motor Stationary Auto-Tuning 2
Stationary Auto-Tuning for Line-to-Line Resistance
Rotational Auto-Tuning for V/f Control
PM Motor Parameter Settings
PM Stationary Auto-Tuning
PM Motor
<99>
PM Stationary Auto-Tuning for Stator Resistance
Z Pulse Offset Tuning
Inertia Tuning
IM and PM
Motors
ASR Gain Auto-Tuning
<99> PM motor control modes are not available on 600 V class drives, CIMR-Ao5oooooooo.
n Notes on Rotational Auto-Tuning
• Decouple the load from the motor to achieve optimal performance from Rotational Auto-Tuning. Rotational Auto-Tuning
is best suited for applications requiring high performance over a wide speed range.
• If it is not possible to decouple the motor and load, reduce the load so it is less than 30% of the rated load. Performing
Rotational Auto-Tuning with a higher load will set motor parameters incorrectly, and can cause irregular motor rotation.
• Ensure the motor-mounted brake is fully released, if installed.
• Connected machinery should be allowed to rotate the motor.
n Notes on Stationary Auto-Tuning
Stationary Auto-Tuning modes analyze motor characteristics by injecting current into the motor for approximately one minute.
WARNING! Electrical Shock Hazard. When executing stationary Auto-Tuning, the motor does not rotate but power is applied. Do not touch
the motor until Auto-Tuning is completed. Failure to comply may result in injury or death from electrical shock.
WARNING! Sudden Movement Hazard. If installed, do not release the mechanical brake during Stationary Auto-Tuning. Inadvertent brake
release may cause damage to equipment or injury to personnel. Ensure that the mechanical brake release circuit is not controlled by the
drive multi-function digital outputs.
Stationary Auto-Tuning 1 and 2
• Perform when using a vector control mode and Rotational Auto-Tuning cannot be performed.
• Check the area around the motor to ensure that nothing will accidentally cause the motor to rotate during the Auto-Tuning
process.
• Use Stationary Auto-Tuning 1 when the motor test report is not available. Use Stationary Auto-Tuning 2 when the motor
test report is available.
Stationary Auto-Tuning for Line-to-Line Resistance and PM Motor Stator Resistance
Note: PM motor control modes are not available on 600 V class drives, CIMR-Ao5oooooooo.
• Perform when entering motor data manually while using motor cables longer than 50 m.
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
Table 4.21 Digital Input and Output Operation During Auto-Tuning
Auto-Tuning Type Digital Input
Functions the same as during normal operation
Maintains the status at the start of Auto-
Tuning
Functions the same as during normal operation
Digital input functions
Digital output functions are disabled.
are disabled.
Maintains the status at the start of Auto-
Tuning
Functions the same as during normal operation
4.7 Auto-Tuning
Digital Output
103
4