YASKAWA A1000 Technical Manual page 121

Input
Input Value
Parameter
PG Number of pulses per
T1-08
revolution
Motor no-load current T1-09
Motor rated Slip T1-10
Motor iron loss T1-11
<1> Input data is needed for CLV/PM only.

Auto-Tuning for Permanent Magnet Motors
Automatically sets the V/f pattern and motor parameters E1- and E5- when a PM motor is used. In Closed Loop
Vector Control, the Auto-Tuning process will also set some F1- parameters for speed feedback detection.
Type
T2-01 = 0
PM Motor Parameter Settings
T2-01 = 1
PM Stationary Auto-Tuning
PM Stationary Auto-Tuning for
T2-01 = 2
Stator Resistance
T2-01 = 3
Z Pulse Offset Tuning
Back EMF Constant Tuning T2-01 = 11
High Frequency Injection
T2-01 = 13
Parameter Tuning
PM Rotational Auto-Tuning T2-01 = 14
Table 4.24 lists the data that must be entered for Auto-Tuning. Make sure the data is available before starting
Auto-Tuning.
The information needed is usually listed on the motor nameplate or in the motor test report provided by the motor
manufacturer. Also refer to
tuning mode selection and the tuning process.
Figure 4.15
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Unit
0
Standard
– YES
<1>
A N/A
Hz N/A
W N/A
Table 4.23 Types of Auto-Tuning for Permanent Magnet Motors
Setting Application Conditions and Benefits
• Motor does not rotate during Auto-Tuning
• Motor test report or motor data like listed in
• A motor test report listing motor data is not available. Drive
automatically calculates and sets motor parameters.
• Useful to tune the drive when the motor data were set up manually or by
motor code and the cable is longer than 50 m. Should also be performed if
the cable has changed after earlier tuning.
• PG encoder has been replaced. Calculates the Z pulse offset.
• Requires the motor to rotate with no or very low load.
• Use if a motor test is not available.
• Tunes the motor induction voltage only.
• Should be performed after motor data are set and the encoder offset is
adjusted.
• The motor must be uncoupled from the mechanical system (remove
loads).
• The motor rotated in reverse or STo fault (Motor Step-Out) occurred at
startup in OLV/PM
• Low speed and insufficient or no torque after activating the high
frequency injection control (n8-57 = 1) in AOLV/PM.
• Faults, such as the motor rotating in reverse, occurred when the power
was turned on during initial startup in CLV/PM.
• A motor test report listing motor data is not available.
• Motor can be decoupled from the load and rotate freely while
Auto-Tuning is performed. Drive automatically calculates and sets motor
parameters.
• PM Rotational Auto-Tuning gives more accurate results than Stationary
Auto-Tuning.
Subchart A-3: Operation with Permanent Magnet Motors on page 112
Figure 4.16 Example of Motor Nameplate
Tuning Type (T1-01)
2
1
Line-to-Line Rotational for
Stationary 1
Resistance
YES N/A
<1>
YES N/A
N/A N/A
N/A N/A
Table 4.24 are available.
4.7 Auto-Tuning
3
4
Stationary 2 Stationary 3
V/f Control
N/A YES
<1>
N/A YES
N/A YES
YES N/A
Control Mode
OLV/PM AOLV/PM
YES YES
YES YES
YES YES
N/A N/A
N/A N/A
N/A YES
YES YES
for details on the
5
YES
<1>
YES
N/A
N/A
CLV/PM
YES
YES
YES
YES
YES
YES
YES
4
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