4.7 Auto-Tuning
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 121
Start-Up Programming
& Operation
4
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 feed
back detection.
Table 4.23 Types of Auto-Tuning for Permanent Magnet Motors
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 Subchart A-3: Operation with Permanent M
agnet Motors on page 112 for details on the
tuning mode selection and
the tuning process.
Figure 4.15
Figure 4.16 Example of Motor Nameplate
PG Number of pulses per
revolution
T1-08 – YES
<1> YES <1> N/A N/A YES <1> YES <1>
Motor no-load current T1-09 A N/A YES N/A N/A YES YES
Motor rated Slip T1-10 Hz N/A N/A N/A N/A YES N/A
Motor iron loss T1-11 W N/A N/A N/A YES N/A N/A
<1> Input data is needed for CLV/PM only.
Type Setting Application Conditions and Benefits
Control Mode
OLV/PM AOLV/PM CLV/PM
PM Motor Parameter Settings
T2-01 = 0
• Motor does not rotate during Auto-Tuning
• Motor test report or motor data like listed in Tab le 4.24 are available.
YES YES
YES
PM Stationary Auto-Tuning
T2-01 = 1
• A motor test report listing motor data is
not available. Drive
automatically calculates and sets motor parameters.
YES YES
YES
PM Stationary Auto-Tuning for
Stator Resistance
T2-01 = 2
• Useful to tune the drive when the mot
or 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.
YES YES
YES
Z Pulse Offset Tuning
T2-01 = 3
• PG encoder has been replaced. Calculates the Z pulse offset.
• Requires the motor to rotate with no or very low load.
N/A N/A
YES
Back EMF Constant Tuning T2-01 = 11
• Use if a motor test is not available.
• Tunes the motor induction voltage only.
• Should be performed after motor data a
re set and the encoder offset is
adjusted.
• The motor must be uncoupled from t
he mechanical system (remove
loads).
N/A N/A
YES
High Frequency Injection
Parameter Tuning
T2-01 = 13
• 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 i
njection control (n8-57 = 1) in AOLV/PM.
• Faults, such as the motor rotating in revers
e, occurred when the power
was turned on during initial startup in CLV/PM.
N/A YES
YES
PM Rotational Auto-Tuning T2-01 = 14
• A motor test report listing motor data is not available.
• Motor can be decoupled from the l
oad and rotate freely while
Auto-Tuning is performed. Drive automatically calculates and sets motor
parameters.
• PM Rotational Auto-Tuning gives more ac
curate results than Stationary
Auto-Tuning.
YES YES YES
Input Value
Input
Parameter
Unit
Tuning Type (T1-01)
0
Standard
1
Stationary 1
2
Line-to-Line
Resistance
3
Rotational for
V/f Control
4
Stationary 2
5
Stationary 3
'5,9( 233
(1'
(1'
667
(
6L
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