YASKAWA A1000 Quick Start Manual page 22

5 Start Up
Control Mode
Open Loop Vector Control
for PM
<1>
Advanced Open Loop
Vector Control for PM
<1>
Closed Loop Vector
Control for PM
<1>
<1> For explanations of these control modes, refer to the Technical Manual.
Normal / Heavy Duty Selection (C6-01)
The drive supports two ratings, Normal Duty and Heavy Duty. Both have different output current ratings (refer to the
catalog or the Technical Manual). Set the Duty mode in accordance with the application.
Mode
C6-01
Application
Overload capability (OL2)
L3-02 Stall Prevention during
Acceleration
L3-06 Stall Prevention during
Run
Default carrier frequency
Auto-Tuning (T1-
Auto-Tuning automatically sets up the motor data relevant drive parameters. Three different modes are supported.
Type Setting
Rotational Auto-
T1-01 = 0
Tuning
Stationary Auto-
T1-01 = 1
Tuning 1
Stationary Auto-
T1-01 = 4
Tuning 2
Stationary Auto-
Tuning for Line-to-
T1-01 = 2
Line Resistance
22
Parameter
Derated torque-load applications employing permanent magnet motors (SPM, IPM) and energy
A1-02 = 5
savings.
A1-02 = 6 This control mode can be used to operate an IPM motor for constant torque applications.
• This mode can be used for high precision control of a PM motor in constant torque or variable
A1-02 = 7 torque applications.
• A speed feedback signal is required.
Heavy Duty Rating (HD)
0
Applications with a constant torque like extruders,
conveyors and cranes. High overload capability
might be needed.
150% of drive rated current for 60 s
150%
150%
2 kHz
)
Application Conditions and Benefits
• Motor can be decoupled from the load and rotate freely
while Auto-Tuning is performed.
• Motor and load can not be decoupled but the motor load
is below 30%.
• Rotational Auto-Tuning gives the most accurate results,
and is therefore highly recommended if possible.
• Motor and load can not be decoupled and the load is
higher than 30%.
• A motor test report listing motor data is not available.
• Automatically calculates motor parameters needed for
vector control.
• Motor and load can not be decoupled and the load is
higher than 30%.
• A motor test report is available. Once the no-load current
and the rated slip have been entered, the drive calculates
and sets all other motor-related parameters.
• The drive is used in V/f Control and other Auto-Tuning
selections not possible.
• Drive and motor capacities differ.
• Tunes the drive after the cable between the drive and
motor has been replaced with a cable over 50 m long.
Assumes Auto-Tuning has already been performed.
• Should not be used for any vector control modes unless
the motor cable has changed.
YASKAWA ELECTRIC TOEP C710616 27D YASKAWA AC Drive - A1000 Quick Start Guide
Main Applications
Normal Duty Rating (ND)
Applications where the torque increases with the speed
like fans or pumps. High overload tolerance is normally
not needed.
120% of drive rated current for 60 s
120%
120%
2 kHz Swing PWM
Control Mode (A1-02)
V/f w/PG
V/f (0)
(1)
N/A N/A
N/A N/A
N/A N/A
YES YES
1
OLV (2) CLV (3)
YES YES
YES YES
YES YES
YES YES