Varispeed G7 Control Modes; Control Modes And Features - Omron VARISPEED G7 Instruction Manual

Varispeed G7 Control Modes

Details of the Varispeed G7-Series Inverter control modes and their features are provided in this section.

Control Modes and Features

Varispeed G7-Series Inverters support the following five control modes, allowing the selection of a control
mode to suit the required purpose. Table 10.1 provides an overview of the control modes and their features.
Control Mode
Constant Setting
Basic Control
Main Applications
PG Speed Control Card
(Option)
Speed Control
*1
Range
Speed Control
Accuracy
Basic Speed
Perfor-
Response
mance
Maximum
Output Fre-
quency
Starting
Torque
-2
10
Table 10.1 Overview and Features of Control Modes
V/f Control with- V/f Control with
out PG
A1-02 = 0
Voltage/frequency
fixed ratio control
Voltage/frequency
fixed ratio control
pensation using a
Variable speed
control, particu-
larly for control of
multiple motors
with a single control using a PG
Inverter and for
replacing existing
Inverters
Required (PG-A2
Not required.
1:40
±2 to 3%
*2
Approx. 1 Hz
*3
400 Hz
150%/3 Hz
*4
Open-loop Vec-
PG tor Control 1
A1-02 = 2
A1-02 = 1
(factory setting)
Current vector
with speed com- control without a
PG
PG
Variable speed
control, applica-
Applications tions requiring
requiring high- high performance
precision speed without a PG on
the motor side,
on the machine and for replacing
side open-loop vector
control of the pre-
vious VS-616G5.
Not required.
or PG-D2).
1:40 1:100
±0.03% ±0.2%
Approx. 1 Hz 5 Hz
400 Hz 400 Hz
150%/3 Hz 150%/1 Hz
Flux Vector Con- Open-loop Vec-
trol tor Control 2
A1-02 = 3 A1-02 = 4
Current vector
control without a
PG using a high-
Current vector
performance mag-
control with a PG
netic flux and
speed estimator
(software)
Very high-perfor-
mance control
Very high-perfor- without a PG on
mance control the motor side
with a PG on the (such as simple
motor side (sim- servodrives,
ple servodrives, torque control, and
high-precision torque limiting),
speed control, and function appli-
torque control, and cations between
torque limiting) flux vector and
open-loop vector 1
control.
Required (PG-B2
Not required.
or PG-X2).
1:1000
1:200
±0.02% ±0.2%
40 Hz 10 Hz
400 Hz
60 Hz
−1
150%/0.3 Hz
150%/0 min
*13
*13