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Hitachi J300U Series User Manual

Page 64

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7-24

Contents and display

Extension

function

code

1

1

FUNC

FUNC

.

.

Running
mode
selection

1

2

FUNC

FUNC

Set value

Function

0

Normal running mode

1

Energy conservation running mode

Initial value

Setting method

Select the running mode. Set the running mode to be used.

2

Fuzzy most suitable acceleration

and deceleration mode

Initial value

NOTE:

When the fuzzy most suitable acceleration and deceleration are selected and the load inertia (motor shaft
conversion) is more than about 20 times of that of the individual motor, an overvoltage trip may occur.
If this occurs, reset the mode to the normal running mode. For other precautions, refer to "Precautions for
fuzzy most suitable acceleration and deceleration" of Appendix 1.

Jogging
frequency
setting

.

2

2

,

,

,,

Set the running command so as to be inputted to the terminal.

(Set to or .)

Since jogging is a direct input operation and may be easily tripped, set the jogging frequency
to 5 Hz or less.

Setting method

Initial value

NOTE:

No frequency can be set
between 0.01 Hz and 0.09 Hz.

CM1

FW

8

3

SWFW

(REV)

SWJG

(JG)

Operation timing

SWJG

SWFW

Motor
rotation

Free run

20 msec min

The free run operation is performed immediately after
SWFW is turned OFF.

No jogging operation is performed when the set value is smaller than the start frequency .

1

2

FUNC

FUNC

Reduced
voltage
soft start
setting

Adjust reduced voltage start.

Initial value

NOTE: How to set

There is no reduced voltage. The rush
current at the start of the inverter is
increased but the motor reaction time is
decreased.

The effect of the reduced voltage is
large.
The rush current is reduced but the
motor reaction time is increased.

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