Spindle Monitoring - Siemens SINUMERIK 804D sl Commissioning Manual

NCK start-up
10.6 Parameterization of spindle data
10.6.7

Spindle monitoring

Axis/spindle stops
If the speed drops below the speed set in machine data MD36060 STANDSTILL_VELO_TOL
(max. speed "Axis/Spindle stopped"), the interface signal NST DB31,... DBX61.4
(Axis/Spindle stopped) is set.
With MD35510 SPIND_STOPPED_AT_IPO_START set (Traverse enabled with "Spindle
stopped"), track traverse is enabled.
Spindle in setpoint range
If the spindle reaches the tolerance area specified in machine data MD35150
SPIND_DES_VELO_TOL (Spindle speed tolerance), the interface signal NST DB31,...
DBX83.5 (Spindle in setpoint range) is set.
Maximum spindle speed
The maximum spindle speed is entered in the following machine data:
• MD35100 SPIND_VELO_LIMIT (max. spindle speed)
The NC limits the spindle speed to this value.
Error response
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 monitors the speed of the spindle. When the speed is exceeded,
an alarm (25030) is generated.
• MD36200 AX_VELO_LIMIT (threshold value for velocity monitoring)
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).
A different maximum speed for position control can be set with MD35135
GEAR_STEP_PC_MAX_VELO_LIMIT.
Gear stage speed min./max.
The max./min. gear stage speed is entered in:
• MD35130 GEAR_STEP_MAX_VELO_LIMIT (maximum speed for gear stage)
• MD35140 GEAR_STEP_MIN_VELO_LIMIT (minimum speed for gear stage)
The speed cannot leave this range when the appropriate gear stage is engaged.
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CNC Part 1 (NCK, PLC, drive)
Commissioning Manual, 11/2006, 6FC5397-2AP10-2BA0