6 Assi
nin
Parameters to the Control and the PLC Pro
ram
6
03.96
6.9 Axes and spindles
6-141
Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
MD 20090: SPIND_DEF_MASTER_SPIND (master spindle reset position in
channel)
MD 35020: SPIND_DEFAULT_MODE (spindle initial setting)
This MD allows a spindle initial setting to be defined.
The following are possible:
S Speed control without/with position control
S Positioning mode
S Axis mode
The time at which the spindle initial setting acts is defined by means of MD
35030: SPIND_DEFAULT_ACT_MASK.
The following are possible:
S POWER ON
S POWER ON and program start
S POWER ON, program start and reset
MD 35040: SPIND_ACTIVE_AFTER_RESET (independent spindle reset)
This MD determines whether the spindle must be stopped by a RESET or a
program end. If the MD has been set, a termination of the spindle functions
must be initiated explicitly via a program command or the IS “Spindle reset”
(DB31, ... DBX2.2).
MD 35010: GEAR_STEP_CHANGE_ENABLE (gear stage changeover
possible. Spindle has several gear stages).
If this machine data is not set, the system assumes that the spindle has no gear
stages. A gear stage changeover is therefore impossible.
With the following machine data and the field parameter “Gear stage no.” and
“Control parameter set no.” the selected gear stage determines the appropriate
field index. The field with index “0” is not used for the spindle machine data!
(See above in this chapter in the “Axis data” section.)
MD 35110: GEAR_STEP_MAX_VELO (n
max
for gear stage changeover)
MD 35120: GEAR_STEP_MIN_VELO (n
min
for gear stage changeover)
MD 35130: GEAR_STEP_MAX_VELO_LIMIT (n
max
for gear stage)
MD 35140: GEAR_STEP_MIN_VELO_LIMIT (n
min
for gear stage)
MD 35200: GEAR_STEP_SPEEDCTRL_ACCEL(acceleration in
speed control mode)
MD 35210: GEAR_STEP_POSCTRL_ACCEL (acceleration in
position control mode)
MD 31050: DRIVE_AX_RATIO_DENOM (denominator load gearing)
MD 31060: DRIVE_AX_RATIO_NUMERA (numerator load gearing)
MD 32200: POSCTRL_GAIN (K
V
factor)
MD 36200: AX_VELO_LIMIT (threshold value for speed monitoring)
MD 35110: GEAR_STEP_MAX_VELO [0,A1] = 500 (not used for spindle)
MD 35110: GEAR_STEP_MAX_VELO [1,A1] = 500
(n
max
for gear stage change, gear stage 1)
MD 35110: GEAR_STEP_MAX_VELO [2,A1] = 1000
(n
max
for gear stage change, gear stage 2)
General machine
data definitions
Parameter sets
Example
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