YASKAWA CIMR-G5A Series User Manual

6.3.2 V/f Pattern Selection: E1-03
6-22
6.3.2 V/f Pattern Selection: E1-03
User
Change
during
Setting
Factory
Valid Access Levels
User
Constant
Number
Name
g
during
Opera-
tion
Setting
Range
Unit
Factory
Setting
V/f
Control
V/f with
PG
Open
Loop
Vector
Flux
Vector
E1-03
V/f pattern selection
×
0toF − F
Q Q
× ×
D
The V/f pattern can be set to any of the following:
• One of 15 preset patterns (settings 0 through E)
• A custom user-set pattern (setting F)
D
The factory setting for E1-03 is “F” (user-defined V/f pattern), but the default contents of this setting
are the same as setting “1.”
J
Selecting a Preset V/f Pattern: E1-03 = “0” through “E”
D
Refer to the following table to set one of the 15 preset patterns.
Characteristics Applications Setting Specifications
These patterns are for general-purpose
applications
0 50 Hz
Fixed
torque
applications.
Use these
p
atterns when the load tor
q
ue
1 60 Hz
Fixed torque
Use
these
patterns
when
the
load
torque
is to remain constant for any rotational
speed
such
as
in
straight
-
line
convey
-
2 60 Hz, Voltage saturation at 50 Hz
spee
d
, suc
h
as
i
n stra
i
g
h
t-
li
ne convey-
ors.
3 72 Hz, Voltage saturation at 60 Hz
U
th
tt
h
th
i
4 50 Hz, cubic
V
ariable
torque
Use these patterns when there is a qua-
dratic or cubic relationshi
p
between the
5 50 Hz, quadratic
Variable torque
dratic
or
cubic
relationship
between
the
rotational speed and load, such as in
fans
or
pumps
6 60 Hz, cubic
f
ans or pumps.
7 60 Hz, quadratic
Select a high starting torque V/f pattern
only in the following cases:
S
The
wiring
distance
between
the
In
8 50 Hz, low starting torque
High starting
S The wiring distance between the In-
verter and motor is relatively large
(greater than 150 m).
S
A
lar
ge
torque
is
required
at
startup
9 50 Hz, high starting torque
High
starting
torque*
S A large torque is required at startup
(such as for heavy axis loads).
S An AC or DC reactor is connected to
the
Inverter
’
s
input
or
output
A 60 Hz, low starting torque
the Inverter ’s input or output.
S A motor less than the maximum appli-
cable motor is being used.
b 60 Hz, high starting torque
These patterns are for applications that
C 90 Hz, Voltage saturation at 60 Hz
High-speed op-
eration
These
patterns
are
for
applications
that
must rotate at frequencies greater than
60
Hz.
A
fixed
voltage
is
applied
at
fre
-
d 120 Hz, Voltage saturation at 60 Hz
eration
60
H
z.
A
fi
x
ed
v
oltage
is
applied
at
fre
-
quencies greater than 60 Hz.
E 180 Hz, Voltage saturation at 60 Hz
* Normally it isn’t necessary to use these patterns because starting torque is ensured by auto-
matic torque boost functions.
D
The constant settings for E1-04 through E1-10 will be changed automatically when one of these pat-
terns is selected. There are three possible settings for these constants depending on the Inverter’s ca-
pacity:
• A 0.4 to 1.5 kW V/f pattern
• A 2.2 to 45 kW V/f pattern
• A 55 to 300 kW V/f pattern
D
The characteristics for these patterns are shown in the diagrams on the following pages.
6

YASKAWA CIMR-G5A Series Specifications

General

Brand	YASKAWA
Model	CIMR-G5A Series
Category	Inverter
Language	English