Siemens SINUMERIK 840D Function Manual

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MD35210 $MA_GEAR_STEP_POSCTRL_ACCEL.At the point, which is determined by the braking start point calculation in Phase 1, the spindledecelerates to a standstill with the acceleration given in the following machine data:MD35210 $MA_GEAR_STEP_POSCTRL_ACCELPhase 3At the point, which is determined by the braking start point calculation in Phase 2, the spindledecelerates to a standstill with the acceleration given in the following machine data:MD35210 $MA_GEAR_STEP_POSCTRL_ACCELPhase 3a:When the SPOS command is activated the proximity of the end point is such that the spindle canno longer be accelerated up to machine data:MD35300 $MA_SPIND_POSCTRL_VELO.The spindle is braked to a standstill with the acceleration given in the following machine data:MD35210 $MA_GEAR_STEP_POSCTRL_ACCELPhase 4, 4aThe spindle is stationary and it has reached the position. The position control is active and stopsthe spindle in the programmed position.NC/PLC IS:DB31, ... DBX60.6 (Position reached with exact stop coarse)andDB31, ... DBX60.7 (Position reached with exact stop fine)are set if the distance between the spindle actual position and the programmed position(spindle setpoint position) is less than the settings for the exact stop fine and coarse limits.This is defined in the machine data:MD36010 $MA_STOP_LIMIT_FINEMD36000 $MA_STOP_LIMIT_COARSEPhase 3:At the point, which is determined by the braking start point calculation in Phase 2, the spindledecelerates to a standstill with the acceleration given in the following machine data:MD35210 $MA_GEAR_STEP_ POSCTRL_ACCELPhase 4:The spindle is stationary and it has reached the position. The position control is active and stopsthe spindle in the programmed position.NC/PLC IS:DB31, ... DBX60.6 (Position reached with exact stop coarse)andDB31, ... DBX60.7 (Position reached with exact stop fine)S1: Spindles18.2 Operating modesAxes and spindles754 Function Manual, 06/2019, A5E47437747B AA