YASKAWA L1000A Technical Manual page 143

Setting 0: V/f Control for Induction Motors
Use this mode for simple speed control and for multiple motor applications with low demands to dynamic response or
speed accuracy. This control mode is also used when the motor parameters are unknown and Auto-Tuning cannot be
performed. The speed control range is 1:40.
Setting 2: Open Loop Vector Control
Use this mode for general, variable-speed applications with a speed control range of 1:200 that require precise speed
control, quick torque response, and high torque at low speed without using a speed feedback signal from the motor.
Setting 3: Closed Loop Vector Control
Use this mode for general, variable-speed applications that require precise speed control down to zero speed, quick torque
response or precise torque control, and a speed feedback signal from the motor. The speed control range is up to 1:1500.
Setting 7: Closed Loop Vector Control for PM Motors
Use this mode for high-precision control of a PM motor in constant torque or variable torque applications. The speed
control range reaches 1:1500. A speed feedback signal is required.
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A1-03: Initialize Parameters
Resets parameters back to the original default values. After initialization, the setting for A1-03 automatically returns to 0.
No.
A1-03
Setting 0: No initialization
Setting 1110: User Initialize
Drive parameters are reset to values selected by the user as User Settings. User Settings are stored when parameter o2-03
is set to "1: Set defaults".
Note: User Initialization resets all parameters to a user-defined set of default values previously saved to the drive. Set parameter o2-03
to 2 to clear the user-defined default values.
Setting 2220: 2-Wire Initialization
Resets all parameters back to their original default settings with digital inputs S1 and S2 configured as Forward run and
Reverse run, respectively.
Setting 5550: oPE04 Reset
An oPE04 error appears on the digital operator when a terminal block with settings saved to its built-in memory is
installed in a drive that has edited parameters. Set A1-02 to 5550 to use the parameter settings saved to the terminal block
memory.
Notes on Parameter Initialization
The parameters shown in Table 5.1
Although the control mode in A1-02 is not reset when A1-03 is set to 2220 or 3330, it may change when an application
preset is selected.
No.
A1-00
A1-02
E1-03
E5-02
E5-03
E5-04
E5-05
E5-06
E5-07
E5-09
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
Parameter Name
Initialize Parameters
will not be reset when the drive is initialized by setting A1-03 = 2220 or 3330.
Table 5.1 Parameters not Changed by Drive Initialization
Setting Range
0, 1110, 2220, 5550
Parameter Name
Language Selection
Control Method Selection
V/f Pattern Selection
Motor Rated Capacity (for PM)
Motor Rated Current (for PM)
Motor Poles (for PM)
Motor Stator Resistance (for PM)
Motor d-Axis Inductance (for PM)
Motor q-Axis Inductance (for PM)
Motor Induction Voltage Constant 1 (for PM)
5.1 A: Initialization
Default
0
5
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