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Manual and Handwheel Travel (H1)
8.5 Fixed-point approach in JOG
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
151
Features of spindles
A spindle changes to the positioning mode on actuating the "Approaching fixed point in JOG"
function. The closed loop position control is active and the axis can traverse to the fixed
point.
If a zero mark has not been detected, the following alarm message is output (as with axis
operation):
Alarm 17810 "Channel %1 axis %2 not referenced"
As a spindle must also be a modulo rotary axis at all times, the same conditions apply for
direction observation as for modulo rotary axes (refer to the paragraph "Features of modulo
rotary axes")
8.5.3
Parameter setting
Movement in the opposite direction
The response while traversing in the opposite direction, i.e.,against the direction of the
approaching fixed point depends on the setting of Bit 2 in the machine data:
MD10735 JOG_MODE_MASK (settings for JOG mode)
Bit
Value Description
0
Travel in the opposite direction is not possible (default setting).
2
1
Movement in the opposite direction is possible.
Fixed point positions
A maximum of 4 fixed point positions can be defined for each axis via the following machine
data:
MD30600 FIX_POINT_POS[n]
Number of valid fixed point positions
The number of valid fixed point positions of an axis is defined via the machine data:
MD30610 NUM_FIX_POINT_POS
Note
"Approaching fixed point with
G75
" constitutes an exception here. In this case, it is also
possible to approach two fixed-point positions with one setting (MD30610 = 0).