Larsen & Toubro C*2000 Series, Руководство пользователя

Страница: 103 / 183

Chapter 7 Basic Functions
7-22
Cx2000 AC Drive
Skip frequency operation
Group Code Item Set value Range Initial Unit
Function group 2
H10 Skip frequency selection 1 0 ~ 1 0
H11 Skip frequency low limit 1 - 0.10 ~ 400.00 10.00 Hz
~ ~
H16 Skip frequency high limit 3 - 0.10 ~ 400.00 35.00 Hz
Set H10 to 1 (using skip frequency function).
The operating frequency can‟t be set at H11~H16. The frequency value of low-number parameter can
not be higher that of high-number parameter.
Skip frequency is settable within max frequency (F21) and start frequency (F23).
 The skip-frequency function is to prevent that motor operates in the range of resonance frequency in the
mechanical system. However, during acceleration or deceleration the motor can run through the skip-
frequency range but can‟t run at a certain speed.
 When Accel is made, if the frequency setting value (setting via voltage, current, RS-485 communication or
keypad) is within the skip-frequency range, the frequency setting shall maintain at the skip-frequency low
limit, it starts to be increased beyond the range.
 When Decel is made, if the frequency setting value (setting via voltage, current, RS-485 communication or
keypad) is within the skip-frequency range, the frequency setting shall maintain at the skip-frequency low
limit, it starts to be decreased beyond the range.
R u n
C o m m a n d
F re q .
H 1 1
H 1 2
H 1 3
H 1 4
H 1 5
H 1 6
V 1 (V o lta g e in p u t)
0
2 0m A
1 0V
I (C u rre n t in p u t)
F re q. U p se ttin g
F re q. D o w n
se ttin g