Siemens SINUMERIK 828D Turning Handbuch - Seite 38
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3 Commissioning
Table 3-2 Spindle types with output signals
Bipolar spindle
Unipolar spindle with separate
enable and direction signals
Unipolar spindle with direction-
dependent enable
The D/A conversion of the spindle setpoint is achieved with 14-bit resolution.
3.3.3
Relevant machine data
Set the following machine data for the analog spindle.
•
Activate the analog spindles:
MD30100 ($MA_CTRLOUT_SEGMENT_NR) = 0
The analog spindle for the setpoint output is activated by setting the local bus
as bus segment.
•
Select the operating mode of the analog spindle.
Table 3-3 Bit representation of machine data MD30134
0
1
2
•
Adapt the rated output voltage to the rated speed of the analog drive:
–
MD32250 ($MA_RATED_OUTVAL)
–
MD32260 ($MA_RATED_VELO)
•
If the analog spindle is operated without an actual-value encoder, you must
enter the value "0" as the encoder number.
–
MD30200 ($MA_NUM_ENCS) = 0
•
If a directly connected spindle actual-value encoder is used, you must select
actual-value acquisition type "PROFIBUS":
–
Incremental encoder: MD30240 ($MA_ENC_TYPE) = 1
–
Absolute encoder: MD30240 ($MA_ENC_TYPE) = 4
Sollwertausgabe an analoge Antriebe
Entry ID: 109761423,
V1.0,
Spindle type
MD30134 ($MA_IS_UNIPOLAR_OUTPUT)
Bipolar output (+/-10 V)
Unipolar spindle with separate enable and direction signals
Unipolar spindle with direction-dependent enable
10/2018
Signal name
AOUT
Analog output +/-10 V
AGND
Analog output 0 V reference signal
DOUT11
Controller enable
AOUT
Analog output +10 V
AGND
Analog output 0 V reference signal
DOUT12
Negative direction of travel (remains
set even if there is no controller
enable)
AOUT
Analog output +10 V
AGND
Analog output 0 V reference signal
DOUT11
Controller enable and positive
direction of travel
DOUT12
Controller enable and negative
direction of travel
Meaning
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