Omron SYSDRIVE 3G3FV, User Manual, Page: 146 / 400

5-24
5-3-2 V/f Pattern Selection (E1-03)
Set the V/f pattern with parameter E1-03. This parameter 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
E1-03 V/f Selection 0 to F --- F Quick-start, Basic,
or Advanced Not applicable.
The V/f pattern settings can be divided into two categories: the 15 preset patterns (settings 0 through E)
and custom user-set patterns (setting F). The factory default setting for E1-03 is “F” (user-defined V/f
pattern), but the contents of this setting are actually the same as setting “1.”
H
Selecting a Preset V/f Pattern (Settings “0” through “E”)
Refer to the following table when selecting one of the 15 preset patterns.
Characteristics Applications Setting Specifications
General-purpose These patterns are for general-purpose
applications
0 50 Hz
applications.
Use these patterns when there is a
1 60 Hz
Use these atterns when there is a
roughly proportional relationship
between the rotational speed and load
2 60 Hz, Voltage saturation at 50 Hz
between the rotational speed and load,
such as in straight-line conveyors.
3 72 Hz, Voltage saturation at 60 Hz
Variable torque Use these patterns when there is a
d i bi l i hi b
4 50 Hz, cubic q
quadratic or cubic relationship between
the rotational speed and load such as
5 50 Hz, quadratic
the rotational speed and load, such as
in fans or pumps.
6 60 Hz, cubic
in fans or um s.
7 60 Hz, quadratic
High starting (Normally it isn’t necessary to use these
b i i
8 50 Hz, low starting torque
g g
torque
( y y
patterns because starting torque is
ensured by automatic torque boost
9 50 Hz, high starting torque
ensured by automatic torque boost
functions.)
A 60 Hz, low starting torque
functions.)
b 60 Hz, high starting torque
High-speed
operation These patterns are for applications that
must rotate at frequencies greater than C 90 Hz, Voltage saturation at 60 Hz
operation must rotate at frequencies greater than
60 Hz. A fixed voltage is applied at
d 120 Hz, Voltage saturation at 60 Hz
60 Hz. A fixed voltage is a lied at
frequencies greater than 60 Hz.
E 180 Hz, Voltage saturation at 60 Hz
Note 1. Select a high starting torque V/f pattern only in the following cases:
S
The wiring distance between the Inverter and motor is relatively large (greater than 150 m).
S
A large torque is required at startup (such as heavy axis loads).
S
An AC or DC reactor is connected to the Inverter’s input or output.
Note 2. The parameter settings for E1-04 through E1-10 will be changed automatically when one of
these patterns is selected. There are three possible settings for these parameters depending
on the Inverter’s capacity: a 0.4 to 1.5 kW V/f pattern, a 2.2 to 45 kW V/f pattern, and a 55 kW
V/f pattern.
Note 3. The characteristics for these patterns are shown in the diagrams on the following pages. The
voltages in these graphs are for 200-V class Inverters. Double the voltage for 400-V class
Inverters.
Basic Operation
Chapter 5