Description Of System Vplc - BONFIGLIOLI AGILE Applications Manual

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Description of System VPLC

With the PLC functions (VPLC), external digital signals and internal logic signals of the frequen-
cy inverter can be combined with one another. Via analog and mathematical functions, analog
signals can be influenced or compared, the results are available for output. PLC functions are
also referred to as instructions.
The results of the instructions can be used by other device functions (e.g. comparator) or out-
put via digital outputs. The results can also be used as input values by other instructions.
The instructions can be configured via function blocks in VPLC.
The functions are processed from index to index (I).
VPLC:
− Up to 32 functions are possible.
− Each function block describes an instruction.
− The processing order corresponds to the order of indices 1 to max. 32.
Input settings (digital)
− Via a digital input buffer, digital signal sources (e.g. run signal, error signal) and digital
inputs (e.g. IN2D) can be assigned to the instruction inputs. The input buffer enables 16 en-
tries.
Input settings (analog)
− Via an analog input buffer, analog signal sources (e.g. frequencies) can be assigned to the
instruction inputs. Via the input buffers 4 inputs each can be selected for frequencies, per-
centages, currents and voltages.
Analog output settings
− Via an output buffer, the output values of the instructions can be made generally (globally)
available and used by other functions (e.g. start clockwise, data set change-over) or output
via the digital outputs of the device. Up to 16 signal sources can be used as digital output
buffer, 24 signal sources can be used as analog output buffer.
− All output values of the instructions have defined values when the frequency inverter is in-
itialized. They are FALSE (digital instructions) or have value 0 (analog instructions) for all in-
struction outputs and all output buffer values. Inverted instruction outputs will be TRUE after
initialization.
− Processing of the instructions can be activated via button "Start PLC" and deactivated via
button "Stop PLC".
Consistent data
The input buffer and output buffer guarantee consistent data during the run time.
Each instruction is described by:
− Instruction (digital: AND, OR etc., analog: addition, absolute value function, etc).
− Inputs: Inputs of the instructions (digital, analog or position).
− Function block settings: These parameters enable, depending on the selected instruction,
setting of delay times, factors or jumps between functions, for example.
Outputs of instructions: The value of an output can be moved to the output buffer and is
−
now generally (globally) available to other device functions.
Each instruction has two outputs O1 and O2 (O2 = O1 inverted) or O1 = Low word and O2 =
High word).
The output values of instructions can also be used as input values in other instructions.
Values are interpreted as Percentage value internal
Internal values of the frequency inverter are processed as percentage value. Frequencies, Cur-
rents and voltage are converted.
Also Input- and Output buffer convert into percentage values.
− Current: Refers to the inverter nominal current. The inverter nominal current refers to
100.00 %
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