Auto-Tuning - YASKAWA iQpump Micro CIMR-PW Series User Manual

4.9

Auto-Tuning

Stationary Auto-Tuning
u
Type
Stationary Auto-
Tuning
for Line-to-Line T1-01 = 2
Resistance (V/f and
OLV Control)
Note:
Auto-Tuning cannot be performed on permanent magnet motors (IPM, SPM, etc.).
Before Auto-Tuning the Drive
u
Check the items below before Auto-Tuning the drive.
Basic Auto-Tuning Preparations
n
• Auto-Tuning automatically determines the electrical characteristics of the motor. This is fundamentally different from other
types of Auto-Tuning features used in servo systems.
• Auto-Tuning requires the user to input data from the motor nameplate. Make sure the information written on the nameplate
is available before Auto-Tuning the drive.
• For best performance, be sure the drive input supply voltage equals or exceeds the motor rated voltage.
Note:
Performance can be enhanced by using a motor with a base voltage that is 20 V (40 V for 400 V class models) lower than the input supply
voltage. This may be of special importance when operating the motor above 90% of base speed, where high torque precision is required.
• Auto-Tuning is not possible with permanent magnet motors.
• To cancel Auto-Tuning, press the OFF key on the LCD operator.
• Table 4.17 describes digital input and output terminal status during Auto-Tuning.
Auto-Tuning Type
Stationary Auto-Tuning for Line-to-Line Resistance
WARNING! Sudden Movement Hazard. 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.
Notes on Stationary Auto-Tuning for Terminal Resistance Only
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• If the motor cable lead length has been significantly modified after Auto-Tuning has already been performed, perform
Stationary Auto-Tuning with the new cables.
• Perform when using motor cables longer than 50 m with V/f Control.
WARNING! Electrical Shock Hazard. When executing stationary Auto-Tuning for line-to-line resistance only, the motor does not rotate,
however, power is applied. Do not touch the motor until Auto-Tuning is completed. Failure to comply may result in injury from electrical
shock.
u 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 be displayed on the digital operator.
A – Normal Auto-Tuning Display
Figure 4.17 Auto-Tuning Interruption Display (Standard Digital LED Operator)
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
Setting Application Conditions and Benefits
For use when:
• The motor cable exceeds 50 m
• The motor cable length has been modified after Auto-Tuning has
been previously performed
• When motor capacity and drive capacity differ
Table 4.17 Digital Input and Output Operation During Auto-Tuning
A
Digital Input
Not available Maintains the status at the start of Auto-Tuning
B
B – Auto-Tuning Interrupted
4.9 Auto-Tuning
Control Mode
V/f Control
Digital Output
4
101