G61.1: High-Accuracy Control Mode - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

G61.1: High-accuracy control mode

Controls the deviation in processing that is caused by the delay in the control system.
Code
G61.1
Processing details
• The G61 command is modal. It remains in effect until any of exact stop check mode (G61), automatic corner override
(G62), and cutting mode (G64) command from the same group are commanded.
• The fast forward speed set in [Motion Control Parameter][G-code Control Parameter][G-code Control Axis
Parameter]"High-accuracy Control""Rapid Traverse Rate During High-accuracy Control Mode" is enabled during high-
accuracy control mode. When rapid traverse rate during high-accuracy control mode is set to "0", the fast forward speed set
in [Motion Control Parameter][G-code Control Parameter][G-code Control Axis Parameter]"Speed/Time
Constant""Fast Forward Speed" is enabled.
During high-accuracy control mode, the G00 command processes acceleration/deceleration by the time constant
acceleration/deceleration method.
• Feed speed commands (F) during high-accuracy control mode are clamped by the feed speed set in [Motion Control
Parameter][G-code Control Parameter][G-code Control Axis Parameter]"High-accuracy Control""Cutting Feed
Clamp Speed For High-accuracy Control Mode". When cutting feed clamp speed for high-accuracy control mode is set to
"0", feed speed commands (F) during high-accuracy control mode are clamped by the feed speed set in [Motion Control
Parameter][G-code Control Parameter][G-code Control Axis Parameter]"Speed/Time Constant""Cutting Feed
Clamp Speed". During high-accuracy control mode, G01, G02, and G03 commands are processed with constant inclination
acceleration/deceleration method (acceleration/deceleration before interpolation).
• When changing from another mode in the same group (G61, G62, G64) to high-accuracy control (G61.1), or when
changing from high-accuracy control (G61.1) to another mode in the same group (G61, G62, G64), a deceleration check is
performed.
• When transitioning to G-code control or resetting, the mode changes to cutting mode (G64).
• Refer to high-accuracy control for details of high-accuracy control. (Page 224 High-Accuracy Control)
Program example
■Program that performs positioning by switching between cutting mode and high-accuracy
mode
Operation Program
(1) G64 G91 G01 X100. F1000.
(2) G61.1 X100.
(3) Y100.
(4) G64 X100.
5 G-CODE CONTROL PROGRAMS
146
5.6 G-Code
Format
G61.1
Remarks
Positioning by cutting mode
Positioning by high-accuracy control mode
Positioning by high-accuracy control mode
Positioning by cutting mode