SV-iS7 User Manual - Inverter Drive Supermarket

Chapter 7 Basic Functions
IN-05 V1 Monitor: displays the voltage input into the V1 terminal. This is used for monitoring the currently input voltage.
IN-07 V1 Filter: used when the set frequency value fluctuates greatly due to the environment such as noise. If you set the
filter time constant high, you can reduce the frequency fluctuation but the response gets slower. The higher the time
constant is, the time (t) becomes longer. The set time refers to the time it takes the frequency set in the inverter to increase
by up to about 63% when the voltage input is input by step as follows.
V1 input
Set
F t
IN-08 V1 Volt X1 ~ IN-11 V1 Perc y2: You can set the slope and offset value for the input voltage.
Set Frequency
IN-11
IN-09
IN-08
IN-10
V1 Input
IN-16 V1 Inverting: If you set at No. 1 Yes, you can reverse the present revolution direction.
IN-17 V1 Quantizing: used when there is a lot of noise in the analog signals input into the terminal. You can also reduce
noise to some extent by using the IN-07 low pass filter value but the higher the value is, the responsiveness becomes
slower and pulsation of a long cycle might occur. The resolving power of output frequency for analog input decreases but
the noise effect is reduced by the quantizing function in a system sensitive to noise. The set quantization value is the
percentage of the maximum analog input value. Therefore if the maximum input value is 10V and the quantization value
is set at 1%, the frequency changes by 0.06Hz (when the maximum frequency is 60Hz) at an interval of 0.1V. The output
frequency when the input value increases and decreases differs so that the effect of analog input value fluctuation is
removed. If the quantization value is quadrisected and the analog input value increases, when a value three fourths the
quantization value is input, the output frequency changes and from the next step it increases along with the quantization
value as follows. If the analog input value decreases by 1/4 of the quantization value, the output frequency changes.
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