Omron SYSDRIVE 3G3FV, User Manual, Page: 99 / 400

3-19
Access Level Settings
Setting Name Function
0 Operation Only This setting allows operation mode and initialize mode to be displayed or
changed. Use this setting to prevent parameter settings from being changed.
1 User Level This setting allows only the user-selected parameters (up to 32) to be displayed
or changed. Select the desired parameters as “User Parameters” in parameters
A2-01 through A2-32.
2 Quick-start This setting allows the parameters required to start the Inverter (about 25) to be
displayed or changed.
3 Basic This setting allows the commonly used parameters to be displayed or changed.
4 Advanced This setting allows all parameters to be displayed or changed.
S
Setting the Control Mode
Use parameter A1-02 to select one of the four control modes. This parameter is not initialized by the
initialize operation and it cannot be changed during operation.
Parameter Display name Setting Units Default Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
A1-02 Control Method 0 to 3 --- 2 Quick-start, Basic, or Advanced
Control Mode Settings
Setting Name Function
0 V/f Control V/f control without pulse generator (normal V/f control)
1 V/f w/PG Fdbk V/f control with pulse generator (V/f control using a PG Speed Control Card)
2 Open Loop Vector Vector control without pulse generator
(Vector control using the Inverter’s internal speed information)
3 Flux Vector Vector control with pulse generator
(Vector control using a PG Speed Control Card)
Control Mode Characteristics
Characteristic V/f Control V/f w/PG Fdbk Open Loop Vector Flux Vector
Basic control method Voltage/frequency
control (open loop) Voltage/frequency
control with speed
compensation Current vector con-
trol without PG Current vector con-
trol with PG
Speed detector Not required Required
(pulse generator) Not required Required
(pulse generator)
Optional Speed
Detectors Not required 3G3FV-PPGA2 or
3G3FV-PPGD2 Not required 3G3FV-PPGB2 or
3G3FV-PPGX2
Speed control range 1:40 1:40 1:100 1:1,000
Starting torque 150%/3 Hz 150%/3 Hz 150%/1 Hz 150%/0 Hz
Speed control
precision
±
2 to 3%
±
0.03%
±
0.2%
±
0.02%
Torque limit Not possible Not possible Possible Possible
Torque control Not possible Not possible Not possible Possible
Example applications
•
Multiple motors
•
Simple speed
feedback control
•
Variable speed
drive applications
•
Simple servo
drives
•
Precision speed
control
•
Torque control
Preparing for Operation
Chapter 3