Siemens SINUMERIK 840D Simodrive 611 digital - Spindle Data

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the control
6
03/2006
6.9 Axes and spindles
6-115
© Siemens AG 2006 All Rights Reserved
SINUMERIK 840D/810D Start-Up Guide (IADC) – 03/2006 Edition
6.9.13 Spindle data
In the SINUMERIK 840D control system, the spindle is a sub-function of the
entire axial functionality. The machine data for the spindle are therefore located
among the axis machine data (from MD 35000 onwards). For this reason, data
must be entered for a spindle which are described in the Sections relating to
axis start-up. The following description contains merely a cross-reference to
this MD.
Note
No spindle is defined after a NCK general reset.
Reference material: /FB1/ S1, Functional description of the basic machines,
Spindles
The following machine data is needed for a spindle definition.
S MD 30300: IS_ROT_AX (rotary axis)
S MD 30310: ROT_IS_MODULO (rotary axis with modulo programming)
S MD 30320: DISPLAY_IS_MODULO (display in relation to 360 degrees,
if required)
S MD 35000: SPIND_ASSIGN_TO_MACHAX (declaration of the axis as a
spindle). Input of the spindle number, with which the spindle is to be
addressed, e.g. “1” means spindle name “S1”.
The spindle operating modes are as follows:
S Open-loop control mode (M3, M4, M5)
S Oscillation mode (support for gear changing operations)
S Positioning mode (SPOS, M19 and SPOSA)
S Synchronous mode
S Rigid tapping
In spindle mode, the feedforward control switches on as standard (FFW mode =
1). Exception: If tapping without a compensating chuck, the bias control only
takes effect if it is explicitly activated (e.g. via the FFWON programming com-
mand).
The set of parameters is selected that corresponds to the current gear step.
Example:
2nd gear step ! parameter set [2]
It is possible to switch directly from spindle mode into axis mode provided that
the same drive is used for both modes. The machine data for one axis must be
applied in axis operation. In axis mode, the first parameter set (index [0]) is
selected irrespective of the current gear step.
After the spindle has been positioned, the rotary axis can be programmed
directly with the axis name.
NST “axis/spindle” (DB31, ... DBX60.0 = 0).
Spindle definition
Spindle modes
Axis mode