GE Industrial Solutions 6KCV300WPD User Manual
Page 121
Parameters
name
offset
alternative
function
8192
Offset to be summed to the parameter identifiers
0
Identifier of the
parameter that will be
found in slot 0 of the communication structure.
0
Identifier of the
parameter that will be
found in slot 1 of the communication structure,
int
0
Identifier of the DRIVE parameter that will be
found in slot 2 of the communication structure.
0
Identifier of the DRIVE parameter that will be
found in slot 3 of the communication structure.
0
Identifier of the DRIVE parameter that will be
found in slot 4 of the communication structure.
The DGFC board communicates to the DRIVE through a device called
This device allows the
DGFC card to write or read from the parameters of the DRIVE, and consequently to condition its functioning.
In DPRAM there are various communication structures with different functioning modes.
The structure piloted by the
block carries out a reading operation of DGFC from the DRIVE parameters.
The maximum number of parameters to be controlled by this structure is 5. The reading of the parameters
occurs at the beginning of each regulation cycle.
The communication structure is composed of five slots. Inside each slot 3 data are contained:
Identifier of
parameters
TYPE Type of DRIVE parameters
to be read from parameter specified by
During the transition of DGFC from
the communication structure is configured:
DGFC copies
parameters in the
field of the respective slots.
DGFC requires the DRIVE to carry out the configuration of the communication structure.
The DRIVE analyses the parameter identifiers in the
field and if it finds them in compliance with each
other, it writes the type of the required parameter in the TYPE field. The TYPE field will be used during the
communication to perform the automatic conversion of data.
If any parameter identifier does not comply with the others, the whole communication structure will be
disabled and the output port in RUN will contain value 0.
After performing the configuration of the communication structure, DGFC reads the VALUE field of each slot
and copies it in the output ports
This operation is carried out periodically by DGFC before starting a
regulation cycle.
The offset parameter is summed to
parameters, this permits to refit the parameter identifiers.
1 1 1