Yaskawa G5 Eliminator - Manual (Page 8)

Date: 07/01/04, Rev: 04-07 Page 8 of 27 TM.G5SW.015
1.5 Advanced Topics / Examples
The configuration entered in the A2 User Parameters is a sequence of numbers that are read
back and executed by connector numbers. Each A2 parameter can contains one connection
point or two connector numbers. Each connector number must be two digits. When the
connector number is a single digit a 0 must be added to make it two. The leading zeros must be
entered.
When a connector is read into the drive the function it represents is executed. Upon completion
the next connector or two digit number is read and executed. This continues until a 00 is read
or until all 22 A2 parameters or all 44 connector numbers have been executed.
The connectors are always read in sequence starting at the beginning and finishing at the end.
The complete sequence is read each scan. The process starts over again on the next scan.
All operation input connectors store the connected input value without changing it. Because of
this it is possible to connect values to all operation inputs before entering the output connector
number into the sequence. When an operation output connector is read and executed the
current stored input or last read values will be used and a new value is calculated and output.
This must be considered when using an operation more than one time. Each time it is used all
the inputs must only be in the sequence one time before the output is entered. After the output
is entered it is possible to reuse the operation inputs but the output must be entered again
before the end of the configuration sequence.
It is also possible to reduce the numbers required in the sequence by only entering an output
one time when it is connected to several inputs. Once the output has been executed, the
current value that will be passed to all input connectors is unchanged until the next output is
executed. Therefore all input connectors that connect to an output may be entered into the
configuration sequence after the output and before the next output. Outputs change the current
value that will be passed. Inputs do not change the current or last output value.
Despite the flexibility provided with this software there are some configurations that may not be
possible. The following examples demonstrate what has been covered in this section.