1. CONTROLLED AXES
The user can assign any one of the following nine characters as the axis
name: A, B, C, U, V, W, X, Y, and Z. Parameter No.1020 is used to
determine the name of each axis.
When this parameter is set to 0 or a character other than the valid
characters is specified, an axis name from 1 to 8 is assigned by default.
When a default axis name (1 to 8) is used, operation in the AUTO mode,
MDI mode is disabled.
If a duplicate axis name is specified in the parameter, operation is enabled
only for the axis specified first.
D Default axis name
D Duplicate axis names