LG SV-iC5 Series Instruction Manual page 70

9. Basic functions
Analog Frequency setting via Potentiometer (V0) on the Keypad
Used to prevent fluctuations in analog input signals caused by noise
Group LED Display
Drive
0.0
group
Frq
I/O group I 1
I 2
I 3
I 4
I 5
Set Frq – [Frequency Mode] to 2.
The set frequency can be monitored in 0.0- [Frequency Command].
I 1 : [Filtering time constant for V0 input]
Effective for eliminating noise in the frequency setting circuit.
Increase the filter time constant if steady operation cannot be performed due to noise. A larger setting
results in slower response (t gets longer).
I 2 - I 5 : [Min/Max input voltage and corresponding frequency setting]
The corresponding frequency to V0 input voltage is settable.
Example: When setting I 2 - [V0 input minimum voltage] = 2V, I 3- [Frequency corresponding to I 2]=
10Hz, I 4 - [V0 input max voltage] = 8V and I 5 - [Frequency corresponding to I 4]= 50Hz, the following
figure is shown.
Parameter Name
[Frequency Command]
[Frequency Mode]
[Filter time constant for V0 input]
[V0 input minimum voltage]
[Frequency corresponding to I2]
[V0 input max voltage]
[Frequency corresponding to I4]
V0 input
Set freq
t
Freq.
setting
50Hz
I 5
10Hz
I 3
2V
I 2
Set Min/Max
Value Range
-
2
10 0/9999
-
- 0/400
-
- 0/400
8V V0 input
I 4
9-2
Factory
Defaults
- -
0/8 0
10
0/10 0
0.0
0/10 10
60.0
SV-iC5
Unit
Hz
V
Hz
V
Hz