T1: Indexing axes
15.5 Equidistant index intervals
Extended Functions
784 Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Requirements
The rotary axis must be an indexing axis. The axis must be referenced.
References:
Function Manual Basic Functions; Reference Point Approach (R1)
Activation
Machine data:
MD30505 $MA_HIRTH_IS_ACTIVE (axis is an indexing axis with Hirth gearing)
must be set to 1.
Machine data:
MD30500 $MA_INDEX_AX_ASSIGN_POS_TAB (axis is an indexing axis)
must be set to 3 (equidistant indexing positions).
Effect
● The rotary axis can only approach indexing positions in all modes and operating states.
● In JOG mode, the axis can be traversed under JOG control or incrementally.
Requirement: The axis is referenced.
● Handwheel travel is not possible (see Section "H1: Manual and handwheel travel
(Page 143)").
● Only "
coded positions" can be approached in AUTO, MDA or via ASUBs.
● The PLC can only move the axis to indexing positions.
15.5.3 Response of the Hirth axes in particular situations
STOP/RESET
For an NC Stop and Reset during a traversing movement, the next indexing position is
approached.
Emergency Stop
After an Emergency Stop, the PLC or the operator must move the indexing axis back to an
indexing position with JOG before the longitudinal axis can be moved in/down.
Override = 0 or signal "axis stopped"
If the axis has already moved away from the previous indexing position when these events
occur, the control moves the axis to the next possible indexing position before the response
is initiated.
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