Yaskawa MP2000 - Manual (Page 117)

TECHNICAL NOTE
ABSOLUTE ENCODER RESET
Function Block
Function block for MP2000 Series SVB Module
<AENC_RST> Function Block Summary
This function block commands a clear of an Absolute encoder’s muti-turn counter and (if required) will
clear a A.81 (Absolute backup loss) alarm.
Function Block Diagram
<AENC_RST> Function Block Operation Notes
• This is valid for MP2x00 SVB module
• Rising edge of EXECUTE input initiates block operation, and all block input
values are read.
• 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 Absolute encoder position reset is complete. This
happens when the MP2x00 controller confirms the ABS_RST (Motion Command
Code #22) followed by an alarm reset.
o
For a SIGMA 2 Servopack (SGDH-   E) with NS100 or NS115 option
card, Servopack control power and MP2x00 power must be cycled.
o
For a Sigma 3 Mechatrolink II Servopack (SGDS-    1 A) no power
cycle, on any device, is required.
• The function block operation can only happen with the Servo Off and after all
motion has stopped. 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.
File: MP2000_IndividualFunctionDocument_RevC 117/168
Doc Number: eng.MCD.05.101
11/17/2005