Function Application
‑508‑
3.1.2.5 Setting the Main Frequency Through Multi-Reference
When F0‑03 is set to 6, multi‑reference is selected as the main frequency source. This
mode is applicable to scenarios where only several running frequencies are needed
instead of continuous frequency adjustment.
The AC drive supports up to 16 running frequencies, which can be set through
combinations of input signals from the four DIs. You can also use fewer than four DI
terminals as the multi‑reference source. In this case, missing digits are populated with
0s.
The relationship between the reference quantity and DI quantity is as follows:
● Two references: one DI terminal K1
● Three to four references: two DI terminals K1 and K2
● Five to eight references: three DI terminals K1, K2, and K3
● Nine to sixteen references: four DI terminals K1, K2, K3, and K4
The required frequency references are set by using parameters of the FC group, as
listed in the following table.
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