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Siemens SINUMERIK 840D sl Function Manual page 1289

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the following effects can be seen on the NC side.
● DB31, ... DBX83.0 = 1 (speed limit exceeded)
● Alarm 22100 "Chuck speed exceeded" is displayed
● All axes and spindles of the channel are stopped
Note
Rotary axis / spindle
If a spindle is also temporarily operated as a rotary axis, alarm 22100 "Chuck speed exceeded"
is displayed if:
"Actual speed of the rotary axis" > MD35100 $MA_SPIND_VELO_LIMIT
(maximum spindle speed) +
MD35150 $MA_SPIND_DES_VELO_TOL (spindle speed tolerance value)
Remedy: Adjust the maximum spindle speed to the maximum rotary axis speed during rotary
operation:
MD35100 $MA_SPIND_VELO_LIMIT = MD32000 $MA_MAX_AX_VELO (maximum
speed of the rotary axis)
For the change to take effect a reset must be triggered.
Maximum spindle speed: Configurable process-dependent limit value
The maximum process-related spindle speed is configured through the following setting data:
SD43235 $SA_SPIND_USER_VELO_LIMIT (maximum spindle speed)
Changes can be made by writing the setting data through:
● Programming in an NC program
● Manually through the user interface by the machine operator
Changes become effective immediately.
Limitation of the speed setpoint
Where appropriate, the controller limits programmed spindle speed setpoints to the values
specified in the setting data. The limitation is then displayed through the following system
variables:
$AC_SMAXVELO_INFO[<Spindle number>] == 21
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
S1: Spindles
16.8 Spindle monitoring
1289

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