Detailed Description
2.1 Spindle modes
Spindles (S1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-5
Independent spindle reset
Machine data:
MD35040 $MA_SPIND_ACTIVE_AFTER_RESET (independent spindle reset)
defines how the spindle behaves after a reset or program end (M2, M30):
• MD35040 $MA_SPIND_ACTIVE_AFTER_RESET is reset.
When the spindle is reset or at the end of the program, the spindle immediately
decelerates to a stop at the active acceleration rate. The last programmed spindle speed
and direction of rotation are deleted.
• MD35040 $MA_SPIND_ACTIVE_AFTER_RESET is set.
On a reset or at the end of the program, the last programmed spindle speed (S value) and
the last programmed direction of spindle rotation (M3, M4, M5) are retained.
The spindle is not decelerated.
If prior to a reset or end of program the constant cutting speed (G96, G961) is active, the
current spindle speed (in relation to 100% spindle override) is applied internally as the last
programmed spindle speed.
The spindle can only be stopped with NC/PLC IS:
DB31, ... DBX2.2
(delete distancetogo/spindle reset).
The direction of rotation is deleted in the event of all alarms generating a spindle quick stop.
The last programmed spindle speed (S value) is retained.
Once the source of the alarm has been eliminated, the spindle must be restarted.
Spindle actual speed display and spindle behavior with G96, G961
DB31, ... DBX61.4 (axis/spindle stationary)
Machine data:
MD36060 $MA_STANDSTILL_VELO_TOL
defines the speed at which the spindle is considered "stationary".
The speed set in the machine data should be dimensioned
so that NC/PLC IS:
DB31, ... DBX61.4 (axis/spindle stationary) is sure to be
pending on standstill.
If NC/PLC IS:
DB31, ... DBX61.4 (axis/spindle stationary)
is signaled and no position control is active for the spindle, zero is displayed for the actual
speed on the MMC and zero is read with system variable $AA_S[n].
References:
/FB1/Descriptions of Functions, Basic Machine; Various Interface Signals and Functions (A2)
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