Basic Operation - Omron SYSDRIVE 3G3MV User Manual

Basic Operation

V/f Control Mode
This mode, which is used by conventional general-purpose inverters, is convenient
when replacing a conventional model with the 3G3MV Inverter because the Inverter in
this mode can be operated without considering the constants of the motor. Furthermore,
set the Inverter to this mode if the Inverter is connected to more than one motor or spe-
cial motors such as high-speed motors.
Control Mode Selection
n002
Setting 0, 1
range
Note This parameter is used for selecting the control mode of the Inverter.
Set Values
Value
0 V/f control mode
1 Vector control mode (open loop)
Note 1. This parameter is not initialized by setting n001 (parameter write-prohibit selec-
tion/parameter initialization) to 8 or 9 for parameter initialization.
Note 2. Each of the following parameters is initialized according to the control mode set
in this parameter. The default value varies with the control mode. Therefore, be
sure to set the following parameters after setting the control mode in n002.
Parame- Parame-
ter ter
n014 Middle output frequency
n015 Middle output frequency
voltage
n016 Minimum output frequency
n017 Minimum output frequency
voltage
n104 Torque compensation
primary-delay time constant
n111 Slip compensation gain
n112 Slip compensation
primary-delay time constant
Note 1. Values in parentheses are for 400-V models.
Note 2. For 5.5- and 7.5-kW Inverters, this value is set to 10.0 V for 200-V-class models
and to 20.0 V for 400-V-class models.
5-4
Name Name
Register 0102
Hex
Unit of 1
setting
Description
Default value
V/f control
(Set value: 0)
1.5 Hz
12.0 V (24.0 V)
(see note 2)
1.5 Hz
12.0 V (24.0 V)
(see note 2)
0.3 s
0.0
2.0 s
Chapter 5
Changes during
operation
Default setting
Vector control
(Set value: 1)
3.0 Hz
11.0 V (22.0 V)
1.0 Hz
4.3 V (8.6 V)
0.2 s
1.0
0.2 s
No
0