Function Application
‑510‑
Para. Parameter Name
Value
Description
F4‑01
DI2 function
selection
12
Multi‑reference
terminal 1
F4‑03
DI4 function
selection
13
Multi‑reference
terminal 2
F4‑06
DI7 function
selection
14
Multi‑reference
terminal 3
F4‑07
DI8 function
selection
15
Multi‑reference
terminal 4
Example
In the following figure, terminals DI2, DI4, DI7, and DI8 are used as multi‑reference
input terminals. They each contribute one bit to a 4‑bit binary value, and different
combinations of the bits represent different frequencies. When values of (DI2, DI4,
DI7, DI8) are (0, 0, 1, 0), they constitute a value of 2. In this case, the frequency value
set through FC‑02 is selected. (See Table 6‑1 for details about frequency selection.)
Then, the target running frequency is calculated automatically by using the formula
(FC‑02) x (F0‑10). The following figure shows the frequency setting.
Figure 3‑17 Frequency setting in multi‑speed mode
The four multi‑reference terminals can make up 16 state combinations,
corresponding to 16 frequency reference values, as listed in the following table.
Table 3–1 Multi‑reference function description
K4 K3 K2 K1
Reference Corresponding
Parameter
OFF OFF OFF OFF
Multi‑reference
0
FC‑00 (FC‑51 = 0)
OFF OFF OFF ON
Multi‑reference
1
FC‑01
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