Mitsubishi Electric CR750-Q Instruction Manual page 297

Prec (Precision)
[Function]
This instruction is used to improve the motion path tracking. It switches between enabling and disabling the
high accuracy mode.
[Format].
Prec[]<On / Off>
[Terminology]
<On / Off>
[Reference Program]
1 Prec On
2 Mvs P1
3 Mvs P2
4 Prec Off
5 Mov P1
[Explanation]
(1) The high accuracy mode is enabled using the Prec On command if it is desired to perform interpolation
movement with increased path accuracy.
(2) When this command is used, the path accuracy is improved but the program execution time (tact time)
may become longer because the acceleration/deceleration times are changed internally.
(3) The enabling/disabling of the high accuracy mode is activated from the first interpolation instruction after
the execution of this command.
(4) The high accuracy mode is disabled if the Prec Off or End instruction is executed, or a program reset
operation is performed.
(5) The high accuracy mode is disabled immediately after turning the power on.
(6) The high accuracy mode is always disabled in jog movement.
[Related instructions]
Loadset (Load Set),
[Related system variables]
HNDDAT 0 to 8, WRKDAT 0 to 8
On: When enabling the high accuracy mode.
Off: When disabling the high accuracy mode.
' Enables the high accuracy mode.
' Disables the high accuracy mode.
Mv Tune (Move Tune)
Detailed explanation of command words 4-277
4MELFA-BASIC V