It is different from ordinary digital input terminal, the state of virtual VDI has
two kinds of setting, the selection depends on E3.06.
If the state of selection VDI is determined by the state of corresponding virtual
VDO, the availability of VDI depends on the valid or invalid VDO output, and VDIx
only binds VDOx (x is 1 to 5) .
if the state of selection VDI is set by the function code, the status of virtual
input terminals can be determined through E3.05 binary bits respectively.
The following example illustrates the use of VDI. Example 1, to achieve the
following function: "Upon arrival of running frequency, the inverter will perform
free stop" Using the following settings method: set that the VDI state selection
depends on VDO, set VDI1 function as "free stop" (E3.00 = 8) ; set that VDI1
terminal active mode depends on VDO1 (E3.06 = xxx0) ; set VDO1 output function
as "Frequency Arrival" (E3.11 = 5) ;
When the inverter reaches the set frequency, the state of VDO1 is ON, at the
time VDI1 input terminal status is valid, if the inverter VDI1 receives the command
of free stop, the inverter will perform free stop.
Example 2, to achieve the following function: " the inverter is powered on, it
automatically enters the running state." Using the following settings: the function
code E3.05 is used to set the state of VDI, set VDI1 function as "Forward Run"
(E3.00 = 1) ; set that VDI1 terminal active mode depends on function code (E3.06 =
xxx1) ; set VDI1 terminal status as valid (E3.05 = xxx1) ; set command source as
terminal control (F0.04 = 1) ; set start protection selection as terminal command
active (F7.08 = 0）;
After the initialization of inverter is completed, it is detected that VDI1 is valid
and this terminal corresponds to the forward run, which is equivalent to that the
inverter receives one the forward run command, the inverter begins to run forward.
To Next Page
Loading...
Need help?
General
