YASKAWA GA700 Technical Manual page 676

11.2 A: Initialization Parameters
Mode Keypad Screen
Drive Mode Monitors
Parameters
User Custom
Parameters
Parameter Backup/
Restore
Programming Mode
Modified Parameters/
Fault Log
Auto-Tuning
Initial Setup Screen
Diagnostic Tools
Note:
• When you use A1-04 and A1-05 [Password Setting] to set a password, you cannot change the values set in A1-01 to A1-03, A1-06, A1-
07,or A2-01 to A2-32.
• When H1-xx = 1B [MFDI Function Select = Program Lockout], you must activate the terminal to change parameter settings.
• When you use MEMOBUS/Modbus communications, you must send the Enter command from the controller to the drive and complete
the serial communication write process before you can use the keypad to change parameter settings.
■
A1-02: Control Method Selection
No.
Name
(Hex.)
A1-02 Control Method
Selection
(0102)
Note:
• When you change the A1-02 setting, the parameter values specified by A1-02 are changed to their default values.
• To use the 2 motor switchover function, first turn OFF the terminal to which H1-xx = 16 [MFDI Function Select = Motor 2 Selection]
is set, then change the A1-02 setting. An incorrect procedure will trigger oPE08 [Parameter Selection Error].
Selects the control method for the drive application and the motor.
0 : V/f Control
Use this control method in these applications and conditions:
• For general variable-speed control applications in which a high level of responsiveness or high-precision speed
control is not necessary.
• To connect more than one motor to one drive
• When there is not sufficient data to set the motor parameters
• When it is not possible to do Auto-Tuning. The speed control range is 1:40.
1 : V/f Control with Encoder
Use this control method in these applications and conditions:
• For general applications in which a high level of responsiveness is not necessary, but high-precision speed
control is necessary.
• When there is not sufficient data to set the motor parameters
• When it is not possible to do Auto-Tuning. The speed control range is 1:40.
2 : Open Loop Vector
Use this control method for general variable-speed control applications in which high-precision speed control is
necessary. In this control method, a feedback signal from the motor is not necessary to have high torque response
and high torque when operating at low speeds. The speed control range is 1:120.
3 : Closed Loop Vector
Use this control method for general variable-speed control applications in which these qualities are necessary:
• A high level of responsiveness
• High-precision speed control up to zero speed
676
Table 11.1 Access Level and Available Keypad Screens
0
Yes
Yes
No
No
No
No
No
No
V/f CL-V/f OLV CLV
Sets the control method for the drive application and the motor.
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
A1-01 [Access Level Selection] Setting
1
Yes
Yes
Yes
No
No
No
No
No
Description
AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
2 3
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Default
(Range)
0
(0 - 8)