6.2 Application examples with FRENIC Multi
In this section two application examples are described. To avoid incorrect configuration it is recommended to start
from factory default values when setting up the inverter (to revert to factory default values set H03=1).
6.2.1 Preset speeds (Multistep frequencies) selection
This example explains how to select preset speeds (multistep frequencies) with FRENIC Multi inverter.
With FRENIC Multi is possible to select up to 15 preset speeds (multistep frequencies). The values of these
multistep frequencies are programmed in functions C05 to C19 (in Hz).
To select the multistep frequencies, 4 digital inputs (between X1 to X5, FWD and REV) must be programmed with
the functions SS1, SS2, SS4 and SS8 and must be activated according to table 1. Functions E01 to E05, E98 and
E99 allow to program the functionality of X1 to X5, FWD and REV digital inputs respectively, according to table 2.
Multistep Frequency Selected
Multi
Freq.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Func.
Code
None C05 C06 C07 C08 C09 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
SS1 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON
SS2 OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON
SS2 OFF OFF OFF OFF ON ON ON ON OFF OFF OFF OFF ON ON ON ON
SS8 OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON ON ON
Dec.
Value
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Table 6.1. Multistep frequencies selection.
Digital input
functionality
Value programmed in
E01-E05, FWD and REV
Decimal value equivalent
to binary code
SS1 0 1
SS2 1 2
SS4 2 4
SS8 3 8
Table 6.2. Digital inputs functions programming values.
For example, if you want to activate speeds C05 (low frequency) and C07 (high frequency) by using digital inputs
X1 and X2, you have to program the functions described in table 3. In this example C05 will be active when X1
input is active, and C07 will be active when both inputs X1 and X2 are active.
Function Value Description
E01 0 Digital input X1 is programmed to activate SS1.
E02 1 Digital input X2 is programmed to activate SS2.
C05 *1 Low frequency (Hz).
C07 *1 High frequency (Hz).
*1. The value of the function depends on the application.
Table 6.3. Function values for multistep frequencies selection.
Multistep frequencies can be used regardless of the value of function F02 (operation method) and functions
F01/C30 (frequency command 1 and 2 respectively). If JOG function is active it has priority over multistep
frequencies selection.
A complex frequency command can be generated by adding more than one signal source, depending on the
configuration of functions E61, E62 and E63. For more information please refer to chapter 4, section 4.2, “Drive
Frequency Command Block”, of FRENIC Multi User’s manual (MEH457).
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