Siemens Sinumerik 840D sl Function Manual page 392

Data Description
8.1 Machine data for SINUMERIK 840D sl
36919
MD number
Default value: 11
Change becomes effective after: POWER ON
Data type: BYTE
Meaning:
corresponds with ...
36920
MD number
Default value: 10.0
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
36921
MD number
Default value: 1
Change becomes effective after: POWER ON
Data type: DWORD
Meaning:
corresponds with ...
36922
MD number
Default value: 1
Change becomes effective after: POWER ON
Data type: DWORD
Meaning:
corresponds with ...
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
$MA_SAFE_ENC_PULSE_SHIFT
Shift factor of the encoder multiplication
Min. input limit: 2
Protection level: 7/- -
Shift factor of the multiplication (resolution) of the encoder, that is used for the Safety
Integrated monitoring functions in the NCK. The encoder value must be divided by 2 so
many times in order to obtain the number of encoder pulses. A shift factor of 11 corre-
sponds to an encoder multiplication by a factor of 2048. If the drive provides this informa-
tion (r0979[3,13,23]), then this MD is automatically internally assigned a value after the
drive has run up. If the value changes then Alarm 27036 is output.
$MA_SAFE_ENC_GEAR_PITCH
Leadscrew pitch
Min. input limit: 0.1
Protection level: 7/2
Gear ratio of the gearbox (gear) between the encoder and load for a linear axis with rotary
encoder.
$MA_SAFE_ENC_GEAR_DENOM[0...7]
Denominator, gearbox ratio encoder/load
Min. input limit: 1
Protection level: 7/2
Denominator of the gear between encoder and load, i.e. the denominator of the fraction
number of encoder revolutions / number of load revolutions
n = 0, 1, ... , 7 stands for gearbox stage 1, 2, ... 8
The actual value is selected using safety- -related input signals (SGE).
MD36922 $MA_SAFE_ENC_GEAR_NUMERA[n]
$MA_SAFE_ENC_GEAR_NUMERA[0...7]
Numerator, gearbox ratio encoder/load
Min. input limit: 1
Protection level: 7/2
Numerator of the gear between encoder and load, i.e. the numerator of the fraction number
of encoder revolutions / number of load revolutions"
n = 0, 1, ... 7 stands for gearbox stage 1, 2, ... 8
The actual value is selected using safety- -related input signals (SGE).
MD36921 $MA_SAFE_ENC_GEAR_DENOM[n]
Max. input limit: 18
Unit: - -
Max. input limit: 10000.
Unit: mm
Max. input limit: 2147000000
Unit: - -
Max. input limit: 2 147 000 000
Unit: - -
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