Hitachi J300U Series Accelera- tion time 1 Decelera, Tion time 1 Manual torque boost

Models: J300U Series

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Monitor

mode contents

Contents and display

These commands set and display Acc. time (

 

 

) and Dec. time (

 

 

).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Accelera- tion time 1 and 2

Decelera-

FUNC

 

 

1

1

 

 

Initial value

 

.

 

 

 

 

 

 

2

2

 

 

FUNC

Setting range

Period

 

 

0.01 to 9.99s

Every 0.01s

 

 

10.0 to 99.9s

Every 0.1s

 

 

100 to 999s

Every 1s

tion time 1 and 2

Manual torque boost

.

• Acceleration time 2 and deceleration time 2 are set when CH1 is connected with P24.

• When a time of more than 1,000 seconds is set by the remote operator, is displayed on the digital operator.

Set torque boost

Motor torque can be adjusted to increase the output voltage when the starting torque is not sufficient in V/F control. Pay attention not to cause the motor to burnout and

an inverter trip. Set boost value in 70 to 90 when using VP1, VP2 or VP3 in V/F control mode.

Setting is effective only when V/F control is selected.

setting

Setting method

FUNC

2

1

 

Initial value

2

 

 

1

 

 

 

 

 

 

 

FUNC

Output

 

 

 

 

voltage

 

 

 

 

100%

 

 

 

 

 

 

A

 

 

About 11.8

 

 

 

 

 

 

 

 

Output

 

 

 

 

frequency

0

5

10

25

50 Hz

 

6

12

30

60

With the remote operator (DOP, DRW, HOP, or HRW),

(V-Boost F 20.0% is set

point A in the torque boost graph can be changed within

with the remote operator.)

the range of 0% to 50% with respect to the base frequency.

 

7-11

Page 51
Image 51
Hitachi J300U Series instruction manual Accelera- tion time 1 Decelera, Tion time 1 Manual torque boost