Operation With Actual Load - Omron SYSDRIVE 3G3HV SERIES User Manual

Preparing for Operation
S Press the Mode Key until the V/F indicator is lit.
S The following two methods are available to set the V/f pattern.
S Select one of the fixed 15 V/f patterns preset with the Inverter, in which case set the V/f pattern
to 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, b, C, d, or E.
S Set the V/f pattern to F for an optional V/f pattern.
S The following are the fixed V/f patterns preset with the Inverter. Refer to 3-4 Basic Operation for
details.
Characteristic
General
purpose
Reduced
torque torque
High starting g g
torque
Constant power
o e at o operation
S Select a V/f pattern suited to the mechanical system from the above V/f patterns.
S Set the V/f pattern to F for an optional V/f pattern to be determined with n012 to n018. The optional
V/f pattern set with the Inverter before shipping is the same as the V/f pattern obtained with the set
value 1.

10. Operation with Actual Load

S Be ready to press the STOP/RESET Key for any error operation of the Inverter or the load.
S Use the Digital Operator to operate the Inverter in the same way as the operation of the Inverter
with no load.
S Set the frequency reference so that the motor will rotate at an approximately 10% of the rotation
speed of the motor in actual operation.
S Set the frequency reference according to the actual rotation speed of the motor after making sure
that the mechanical system operates correctly and smoothly.
S Change the frequency reference and the rotation direction of the motor and check that the me-
chanical system operates without error vibration or noise.
3-12
Use
These V/f patterns are mainly used for
general purposes, such as the control l h
of straight conveyor lines. Apply these of straight conveyor lines Apply these
V/f patterns to the motor if the rotation
s eed of the motor must change in speed of the motor must change in
almost direct proportion to the load
factor of the motor.
These V/f patterns are mainly used for
fan pumps. Apply these V/f patterns to fan pumps Apply these V/f patterns to
the motor if the rotation s eed of the the motor if the rotation speed of the
motor must change in square or cube
proportion to the load factor of the proportion to the load factor of the
motor.
These V/f patterns are usually
unnecessary because the Inverter has b h I
a full automatic torque boost function to a full automatic torque boost function to
su supply enough power to meet the ly enough ower to meet the
starting torque of the motor.
These V/f patterns are used to rotate
t e the motor with an output at 60 Hz or oto t a out ut at 60
more. Apply these V/f patterns to the
motor to impose a constant voltage at
60 Hz min. on the motor. 60 Hz min on the motor
Set
value
y
0 50 Hz
th t l
1 60 Hz
2 60 Hz. Voltage saturation at
50 Hz.
3 72 Hz. Voltage saturation at
60 Hz.
4 50 Hz with cube reduction.
5 50 Hz with square reduction.
6 60 Hz with cube reduction.
7 60 Hz with square reduction.
y
8 50 Hz with low starting torque.
h
9 50 Hz with high starting torque.
A 60 Hz with low starting torque.
B 60 Hz with high starting torque.
C 90 Hz. Voltage saturation at
o 60 Hz.
D 120 Hz. Voltage saturation at
60 Hz.
E 180 Hz. Voltage saturation at
60 Hz.
Chapter 3
Specification