Siemens SINUMERIK 840D Description Of Functions page 244

4 Data Descriptions
4.2 Machine data for SIMODRIVE 611 digital
1318 $MD_SAFE_ENC_RESOL
Encoder pulses per revolution
Unit: Default:
2 048
Number of pulses per encoder revolution (only applies to rotary encoders)
1320 $MD_SAFE_ENC_GEAR_PITCH
Lead screw pitch
Unit: Default:
mm/rev 10
Gear ratio between encoder and load (applies to linear axes with rotary
encoder)
1321 $MD_SAFE_ENC_GEAR_DENOM[n]
Denominator of encoder/load gear
Unit: Default:
- 1
Denominator of the gear between encoder and load, i.e. the denominator of the
fraction number of encoder revolutions / number of load revolutions
There are a total of 8 values (n = 0 ... 7); the current value is selected by means
of SGEs.
1322 $MD_SAFE_ENC_GEAR_NUMERA[n]
Numerator of encoder/load gear
Unit: Default:
- 1
Numerator of the gear between encoder and load, i.e. the numerator of the
fraction number of encoder revolutions / number of load revolutions"
There are a total of 8 values (n = 0 ... 7); the current value is selected by means
of SGEs.
1326 $MD_SAFE_ENC_FREQ_LIMIT
Encoder limit frequency for safe operation
Unit: Default:
- 300000
Encoder limit frequency setting due to hardware requirements (encoder cable
length, encoder type). Only applies with 611 digital Performance 2 control
1330 $MD_SAFE_STANDSTILL_TOL
Standstill tolerance (SBH)
Unit: µm or
Default:
1 000
mdegrees
Tolerance value for the safe standstill monitoring.
This machine data defines the standstill tolerance window for SBH. The actual
value must be within this tolerance value otherwise an alarm is output
4-244
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Minimum value: Maximum value:
1 100 000
Minimum value: Maximum value:
0.1 8 388.00
Minimum value: Maximum value:
1 8 388 607
Minimum value: Maximum value:
1 8 388 607
Minimum value: Maximum value:
300000 420000
Minimum value: Maximum value:
1 100 000
611 digital
Relevant for:
FD/MSD
Data type: Becomes effective:
- POWER ON
611 digital
Relevant for:
FD/MSD
Data type: Becomes effective:
float POWER ON
611 digital
Relevant for:
FD/MSD
Data type: Becomes effective:
long integer POWER ON
611 digital
Relevant for:
FD/MSD
Data type: Becomes effective:
long integer POWER ON
611 digital
Relevant for:
FD/MSD
Data type: Becomes effective:
long integer POWER ON
611 digital
Relevant for:
FD/MSD
Data type: Becomes effective:
long integer POWER ON
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11.03