Yaskawa MP2000 - Manual (Page 125)

TECHNICAL NOTE
DEFINE POSITION Function Block
Function Block for MP2000 Series
<DEF_POS> Function Block Summary
This function block adjusts the absolute position offset of the defined axis. It will also handle the position
of a rotary load.
Function Block Diagram
<DEF_POS> Function Block Operation Notes
• This is valid for MP2x00 family of products.
• Rising edge of EXECUTE input initiates block operation, and all block input
values are read.
• If the ABSENC input is FALSE The Offset register ill be cleared every power up,
even if EXECUTE input is FALSE.
• To use the function block, the EXECUTE input must be held ON at least until the
DONE output bit turns ON or the ERROR output bit turns ON.
• The
RUNNING output bit will be held high until: the entire operation is complete.
This means the RUNNING output bit will turn OFF when DONE is ON,
EXECUTE
becomes low, or an ERROR occurs.
• DONE bit turns ON when the new position is set.
• If another block has control of the axis or a move is not finished, and the
EXECUTE was turned ON, the ERROR output will go ON. The when the
ERROR
output is on, the RDA will not indicate an error.
• If EXECUTE has been turned ON, The Axis is defined in the RDA as rotary, and
the REQPOSIT is negative or larger than the RDA defined PERIOD, ERROR
output bit will turn ON.
• If an Absolute encoder is present then ABSENC input must be ON.
File: MP2000_IndividualFunctionDocument_RevC 125/168
Doc Number: eng.MCD.05.101
11/17/2005