Mitsubishi Electric M800VW Series Programming Manual page 787

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.28 Applying the Rotary Axis Configuration Parameter
Operation when the rotary axis is set with non-ISO polarity
For combined type 5-axis machine, the following functions can be used in the machine whose rotary axis is installed with
either ISO polarity or non-ISO polarity.
(5-axis machine other than combined type supports only the rotary axis installed with ISO polarity.)
 Inclined surface machining command (G68.2/G68.3)
 Tool axis direction control command (G53.1/G53.6)
 Tool center point control command (G43.4/G43.5)
 Tool cutting point control (G43.8/G43.9)
 3-dimensional Manual Feed
[Definition of ISO polarity]
ISO polarity means that the movement direction and rotation direction of the axis follows the right-hand orthogonal coordinate
system (the coordinate system which is defined in ISO standard).
Non-ISO polarity means that the movement direction and rotation direction of the axis follows the left-hand orthogonal
coordinate system.
To use the rotary axis installed with reverse ISO polarity, set the following parameters.
(1) Set the parameter "#1450 5axis_Spec/bit3" to "1".
(2) Set the parameter, which corresponds to non-ISO polarity axis, between "#7923 DIR_T1", "#7933 DIR_T2", "#7943
DIR_W1", and "#7953 DIR_W2" to "1".
When all the rotary axes are installed with ISO polarity, set the parameter "#1450 5axis_Spec/bit3" to "0".
[Precautions]
There are following restrictions to use the rotary axis installed with non-ISO polarity.
 When the inclined surface machining command (G68.2 P10) is issued, the program error (P934) occurs.
 When the inclined surface machining command (G68.2/G68.3), tool axis direction control command (G53.1/G53.6), tool
center point control command (G43.4/G43.5), or tool cutting point control (G43.8/G43.9) is issued in a machine other than
combined type, the program error (P934) occurs.
 When the 3-dimensional manual feed is commanded on a machine other than combined type, the operation alarm (M01
0186) occurs.
IB-1501668-B 766