ADV200 • Quick start up guide 111
7.3.3 Variable interconnections mode
The source (src) allows the desired control signal to be assigned to the function
block input.
This operation is performed by using specic selection lists.
Possible control signal sources:
1 – Physical terminal
The analog and digital signals come from the terminal strip of the regulation card
and/or from those of the expansion cards.
2 – Drive internal variables
Internal drive control system variables, from “function block” calculations, sent via
keypad, PC congurator or eldbus.
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 conguration) 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, select-
ing 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.
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