NC Commissioning with HMI Advanced
11.5 Axes and spindles
Manual
454
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
Maximum spindle speed
The maximum spindle speed is entered in the following machine data:
●
MD35100 $MA_SPIND_VELO_LIMIT (max. spindle speed)
The NC limits the spindle speed to this value.
Error reaction:
If the speed is nevertheless exceeded by the speed tolerance (drive error), the following
signal is output:
●
IS DB31,... DBX83.0 (speed limit exceeded) = 1
●
Alarm "22150 Maximum number of chucks exceeded"
The following machine data also limits the speed of the spindle:
●
MD36200 $MA_AX_VELO_LIMIT (velocity-monitoring threshold)
When the speed is exceeded, an alarm is generated.
In position-controlled mode (e.g. SPCON), the NC limits the specified maximum speed
specified in machine or setting data to 90% of the maximum value (control reserve).
Gear stage speed min./max.
The default of a max./min. gear stage speed is entered in the following machine data:
●
MD35130 $MA_GEAR_STEP_MAX_VELO_LIMIT (maximum speed for gear stage)
●
MD35140 $MA_GEAR_STEP_MIN_VELO_LIMIT (minimum speed for gear stage)
The speed cannot leave this range when the appropriate gear stage is engaged.
Progr. Spindle speed limitations
The following functions can be used to specify a spindle speed limitation in an indexing
program:
●
G25 S... (min. spindle speed)
●
G26 S... (max. spindle speed)
The limitation is active in all operating modes.
The function LIMS=... can be used to specify a spindle speed limit for G96 (constant cutting
rate):
●
LIMS=... (speed limitation (G96))
This limitation is operative only when G96 is active.
