Siemens SINUMERIK 828D Commissioning Manual page 164

Parameterizing machine data
6.4 Machine data for an analog spindle
Relevant machine data
The following machine data must be set for the analog spindle:
● Activation of the analog spindle:
● Selecting the analog spindle mode:
MD30134:$MA_IS_UNIPOLAR_OUTPUT
=0
=1
=2
● The rated output voltage must be adapted to the rated speed of the analog drive:
● If the analog spindle is to be operated without an actual value encoder, then the value 0
● When using a directly mounted spindle actual value encoder, PROFIBUS should be
● The spindle actual value encoder must then be configured as 2nd encoder of a
● The input assignment of the actual value should be set to the input for the 2nd encoder at
● Automatic drift compensation can be activated for a connected spindle actual value
● A basic drift value is continuously entered as additional speed setpoint independent of
164
MD30100:$MA_CTRLOUT_SEGMENT_NR = 0
The analog spindle for the setpoint output is activated by setting the local bus as bus
segment.
bipolar output (+/-10 V)
unipolar spindle with separate enable and direction signals
unipolar spindle with direction-dependent enable
MD32250: $MA_RATED_OUTVAL
MD32260: $MA_RATED_VELO
must be entered as number of encoders:
MD30200: $MA_NUM_ENCS = 0
selected as the actual value sensing type:
MD30240: $MA_ENC_TYPE = 1 or 4
SINAMICS axis. To do this, the drive assignment of the actual value should be set the
same as for the axis, where the SMC30 is to be connected at its axis module:
MD30220[0]: $MA_ENC_MODULE_NR[0] = MD30220[0] of the SINAMICS axis
the SINAMICS axis module:
MD30230[0]: $MA_ENC_INPUT_NR[0] = 2
encoder:
MD36700:$MA_DRIFT_ENABLE
MD36710: $MA_DRIFT_LIMIT
whether there is a spindle actual value encoder:
MD36720:$MA_DRIFT_VALUE
Commissioning Manual, 02/2012, 6FC5397-3DP40-3BA0
Turning and Milling