6
ADV200
WA • Functions description and parameters list
Practical example
The following examples illustrate the philosophies and methods with which more or less complex operations
are performed in the single “function blocks”, the results of which represent the output of the block.
• Example: Changing the Speed Reference source
The main drive reference (in the default configuration)
Ramp ref 1 mon
(PAR: 620) is generated by the output
of the function block “
Ramp setpoint Block
”.
Its default source is the
Analog input 1 mon
signal (PAR: 1500), from the output of the function block
“
Analog input 1 Block
”, which in this case refers to analog input 1 of the signal terminal strip.
To change the reference source from the analog input to a digital reference inside the drive, the input signal
must be changed to “
Ramp setpoint Block
”.
Enter the
Ramp ref 1 src
parameter (PAR: 610)
and set a new reference, selecting it from among those listed
in the L_MLTREF selection list, for example
Dig ramp ref 1
(PAR: 600).
• Example: Inverting the analog reference signal
To invert the “
Analog input 1 Block
” output signal, the value of the
An inp 1 sign src
parameter (PAR:
1526), which has a default setting of
Null
(no operation), must be changed by selecting the source of the
command signal from among those listed in the L_DIGSEL 2 selection list, for example
Digital input X mon
,
One
(function always enabled), etc.
+1
-1
* -1
* +1
Null
Null
An inp 1 sign src
Null
An inp 1 alt sel src
Analog input 1 mon
Analog input 1 Block
Ramp Setpoint Block
Terminal input
Ramp ref 1 mon
Ramp ref 1 src
An inp 1 alt value
Ramp ref invert src
The diagrams above illustrate the internal processing philosophy of the single “function blocks” and the result
of these changes on the other interconnected “function blocks”.
Note !
This section contains a brief description of the functions of the other parameters in the function blocks not included for the
changes in the example
The
An inp 1 alt sel src
parameter (PAR: 1528) can be used to select an alternative reference for the
Analog
input 1 mon
(PAR: 1500) output.
The
An inp 1 alt value
parameter (PAR: 1524) determines the alternative reference value for the
Analog
input 1 mon
(PAR: 1500) output.
The
Ramp ref invert src
parameter (PAR: 616) can be used to select the source for the command to reverse
the “
Ramp setpoint
” function block output.
The output signal from the “
Ramp setpoint
” block is displayed in the
Ramp ref 1 mon
parameter (PAR: 620).
Содержание ADV200 WA
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Страница 274: ...274 ADV200 WA Block Diagrams G Block Diagrams System Diagrams Index Drive overview ...
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