Function Enabling Conditions; Description Of Operation - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.13 Automatic Error Detection

14.13.2 Function Enabling Conditions

This function is switched to ON/OFF with the PLC signals.
This function is ON when the error detection signal (ERD) is OFF and the automatic error detection signal (AUTED) is ON.
The normal error detection is prioritized when the error detection signal (ERD) is ON.
This function works at the corner of linear interpolation (G01) or circular interpolation (G02, G03).
This function does not work during the exact stop check (G61) or when the exact stop check (G09) command exists in the
same block.
(G01 -> G01, G01 -> G02/03, G02/G03 -> G01, G02/G03 -> G02/G03)

14.13.3 Description of Operation

 Corner angle calculation control
The timing for starting the next cutting block is controlled only when the corner angle θ (interior angle) calculated for
consecutive cutting blocks is equal to or smaller than the parameter value (*1). The timing for starting the next cutting block is
not controlled when the corner angle is larger than the parameter value.
Angle calculation is performed for the plane axis selected with the plane selection command. Angle calculation is not
performed for the rotational axes.
G01
θ
G01
(*1) Corner deceleration check angle
 Start timing control
Checking the amount of error is started after deceleration starts in the currently executed block. The next cutting block starts
when the amount of error (remaining distance after composition) between the machine position of the target axis and the
feedback machine position becomes equal to or less than the parameter value (*1).
Execution
block
X axis
Z axis
G01X_
G01Z_
(*1) Corner deceleration check width
IB-1501668-B
G02
θ
G01
Servo
Command
Position error amount <
Parameter value (Corner deceleration check width)
Position error amount =
Next block
Servo
Command
［Parameter setting example］
θ = 180°
θ = 90°
Machine position - Feedback machine position
642
θ = 0°