Function Applications
-435-
Figure 4-14 Parameter settings for using AI1 voltage input as main frequency reference
In this example, AI2 of the power supply unit is selected as the AI2 hardware source (F4–27 = 2), and
curve 2 is selected (the tens of F4-48 is set to 2) for AI2. When the current-type AI2 terminal is used as
the frequency source, 4 mA to 20 mA current corresponds to 0 Hz to 50 Hz frequency. The following
figure shows how to set the parameters.
Figure 4-15 Parameter settings for using AI2 current input as main frequency reference
4.1.2.5 Multi-reference Control
When F0-03 is set to 6, multi-reference is selected as the main frequency reference source. It is suitable
for applications where only several frequency values are required without the need for continuous
frequency adjustment.
The AC drive supports a total of 16 running frequencies, which can be defined by different
combinations of input signals of four DI terminals. You can also use less than four DI terminals, and the
missing bit is considered to be 0.
The required multi-reference frequencies are defined by the multi-reference table in group FC. The
following table describes the related parameters.
To Next Page
Loading...
