Yaskawa LEGEND-MC - Manual (Page 124)

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LEGEND-MC User’s Manual
FI (Find Index)
[Motion]
DESCRIPTION:
The FI and BG commands move the motor until an encoder index pulse, or “C” channel, is detected. The
controller looks for a transition from low to high. When the transition is detected, motion stops and the
position is defined as zero. To improve accuracy, the speed during the search should be specified as 1000
counts/s or less. The FI command is useful in custom homing sequences. The direction of motion is
specified by the sign of the JG command.
ARGUMENTS: FI XYZW or ABCDEFGH
USAGE:
RELATED COMMANDS:
EXAMPLES:
NOTE: Find Index only searches for a change in state on the Index. Use FE to search for the Home input. Use HM (Home)
to search for both the Home input and the Index. Remember to specify BG after each of these commands.
While Moving No Default Value ---
In a Program Yes Default Format ---
Command Line Yes
Can be Interrogated No
Used as an Operand No Distributed Control Specific Axis
"FE" Find Edge
"HM" Home
"BG" Begin
"AC" Acceleration Rate
"DC" Deceleration Rate
"JG" Speed for search
#HOME Home Routine
JG 500 Set speed and forward direction
FI Find index
BG Begin motion
AM After motion
MG "FOUND INDEX"
EN