Siemens SINUMERIK 840Di Manual page 364

10 NC Start-Up with HMI Advanced
10.5 Axes and spindles
Master spindle
Spindle reset
References
10-364
5. If axis mode is active, it is not possible to switch over the gear stage. To this
aim, it is necessary to switch over to control mode using M41 to M45.
6. In axis mode, the machine data of the 1st parameter record (index zero) will
apply to be able to make adaptations.
To be able to use various spindle functions in a channel, such as
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Revolutional feed (G95)
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Tapping with compensation chuck (G63)
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Thread cutting (G33)
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Dwell time in spindle revolutions (G4 S...)
a master spindle has to be defined in the corresponding channel:
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MD20090: SPIND_DEF_MASTER_SPIND (master spindle initial setting in
channel)
In machine data
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MD 35000: SPIND_ASSIGN_TO_MACHAX (spindle number)
the defined spindle number of the spindle of the channel is entered, which will
be the master spindle.
The machine data
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MD 35040: SPIND_ACTIVE_AFTER_RESET (spindle active with reset)
defines whether the spindle is to remain active beyond
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reset (IS: DB21,... DBX7.7)
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end of program (M02/M30).
To cancel spindle movements, an independent spindle reset is required:
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IS: DB31,... DBX2.2 (spindle reset).
/FB1/ Description of Functions, Basic Machine,
S1 Spindles
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03