Omron EasySpeed 3G3JE, Руководство пользователя

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Chapter 3
3-15
Operation
3-5-3 Selecting the Application (Setting V/f Patterns)
• Set the V/f pattern so that the motor output torque is adjusted to the required load torque.
• With the 3G3JE, either of the two patterns below can be selected as the pattern for V/f characteris-
tics.
• The 3G3JE has an automatic torque boost function. The suitable torque characteristics can be
obtained by simply selecting the load application.
None Use the Increment and Decrement Keys to dis-
play
dec
on the data display.
None When the Enter Key is pressed, the present set
value will be displayed.
None Set the deceleration time using the Increment
and Decrement Keys. The data display will
flash.
None Pressing the Enter Key will enter the set value.
When the data displays stops flashing, the
adjustment item name will again appear on the
data display.
LOD Application selection Changes during
operation No
Selected item CNV/FAN Default setting CNV
Selected item Characteristics and
application
Description
CNV (
cnv
) Constant torque character-
istics (for conveyers) Select for applications such as conveyers, where the load
torque is uniform regardless of the rotation speed and the
load moment of inertia is high.
FAN (
fan
) Gradual decrease torque
characteristics (for fan) Select for applications such as fans and pumps, where the
load torque is lower when the rotation speed is slower.
Key sequence Indicator Display example Explanation
dec
10.0
20.5
dec
0
Output voltage (V)
Frequency (Hz)
Constant torque
characteristics
Gradual decrease
torque characteristics