Yaskawa SMC–4000 - Manual (Page 122)

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SMC–4000 User Manual
FI (Find Index)
[Motion]
DESCRIPTION:
The FI and BG (Begin) combination moves 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 (Jog) command.
ARGUMENTS: FI XYZW or ABCD
USAGE:
RELATED COMMANDS:
FE (Find Edge)
HM (Home)
BG (Begin)
AC (Acceleration)
DC (Deceleration)
JG (Jog)
EXAMPLES:
HINT: Find Index only searches for a change in state on the Index. Use FE (Find Edge) to search for the Home input.
Use HM (Home) to search for both the Home input and the Index. Remember to specify BG (Begin) 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
Virtual Axis No
#HOME Home Routine
JG 500 Set speed and forward direction
FI Find index
BG Begin motion
AM After motion
MG "FOUND INDEX"
EN