Omron EasySpeed 3G3JE, User Manual

Page: 67 / 133

Chapter 3
3-7
Operation
■
No-load Motor Operation
Before performing operation with the mechanical system actually connected, operate the motor with
no load (i.e., not connected to the mechanical system) using the Digital Operator keys.
• Check that no faults have occur in the Inverter during operation.
• Check that the directions of rotations match. If operation is in the wrong direction, reverse any two
of the motor output wires.
• The Increment and Decrement Keys can be used to change the frequency when the
@
Hz set indi-
cator is lit.
• Refer to 3-4-3 Changing the Frequency Reference for information on changing the frequency refer-
ence.
Key sequence Indicator Display example Explanation
1 s min.
None Press the Mode Key for at least 1 s to move to Ini-
tial Settings Mode.
None Use the Increment or Decrement Key to display
p01
.
None Press the Enter Key to display the value currently
set in P01.
None Use the Increment or Decrement Key to set the
rated motor current for the motor that is to be used.
The display will flash while the value is being set.
None Press the Enter Key to enter the set value. The
data display will stop flashing and
p01
will be dis-
played.
5 No-load Operation
Key sequence Indicator Display example Explanation
@
Hz set Go to RUN mode and press the Mode Key to light
the
@
Hz set indicator. The present frequency
reference will be displayed on the data dis-
play.
@ Hz set Set the frequency using the Increment and Decre-
ment Keys.(It is recommended that the test run be
first conducted at low frequency.)
@ Hz set
@ RUN
Press the RUN Key.
The
@ RUN Indicator will be lit.
@
Hz set
@
RUN
The frequency can be changed using the Incre-
ment and Decrement Keys.
p01
p01
2.0
1.8
p01
10.0
12.3
RUN
12.3
20.0