LG C Series - Manual (Page 78)

Chapter 9. Basic functions
z Skip frequency
Group LED display Parameter name
Set
value
Min/Max
range
Factory
defaults
Unit
H10 [Skip frequency select] 1 0/1 0
H11 [Skip frequency low limit 1] - 0/400 10.0 Hz
~ ~
Function
group 2
H16
[Skip frequency high limit
3]
- 0/400 35.0 Hz
ƒ Set H10 to 1.
ƒ Run frequency setting is not available within the skip frequency range of H11-H16.
ƒ Skip frequency is settable within the range of F21 – [Max frequency] and F23 – [Start frequency].
Run
command
Freq.
H11
H12
H13
H14
H15
H16
V1(Voltage input)
0
20mA
10V
I (Current input)
Freq. Up setting
Freq. Down
setting

When it is desired to avoid resonance attributable to the natural frequency of a
mechanical system, these parameters allow resonant frequencies to be skipped. Three
different areas of [Skip frequency High/Low limit] can be set with the skip frequencies set
to either the top or bottom point of each area. However, during acceleration or
deceleration, the run frequency within the set area is valid.

In the case of increasing frequency setting as shown above, if frequency set value
(Analog setting via voltage, current or digital setting via keypad) is within the range of
Skip frequency, it maintains Skip frequency low limit value. If the set value is outside the
range, it increases the frequency.

In the case of decreasing frequency setting, if frequency set value (Analog setting via
voltage, current or Digital setting via keypad) is within the range of Skip frequency, it
maintains Skip frequency high limit value. If the set value is outside the range, it
decreases the frequency.
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