Function Application
‑505‑
Figure 3‑12 Settings of AI curve 1
When an AI is used as the main frequency source, the voltage/current input value of
100% indicates the percentage of the maximum frequency (F0‑10). When analog input
current is used as frequency reference, 1 mA current corresponds to 0.5 V voltage, and
0 mA to 20 mA current corresponds to 0 V to 10 V.
Curve 2 and curve 3 are set in the same way as curve 1. Parameters F4‑18 to F4‑21 are
used to set curve 2, and parameters F4‑23 to F4‑26 are used to set curve 3.
Figure 3‑13 Settings of AI curve 2
Curve 4 and curve 5 provide functions similar to those of curves 1 to 3, except that
curves 1 to 3 are straight lines, whereas curve 4 and curve 5 are four‑point curves
allowing more flexible relationship. The x axis of AI curves 4 and 5 represents the
analog input voltage (or current), and the y axis represents the set value
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