10.03
4.10 Position measuring system
4-144
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
The length defines the total transferred message frame length including all par-
ity or alarm bits.
Example: 24 bits + 1 alarm bit; 25 must be entered.
Every encoder manufacturer has a different name for the alarm bit, e.g. Power
Failure Bit.
5040 PISTON_ZERO Cross reference: -
Piston zero in relation to machine zero Related to:
HLA
Protection level:
3/3
Unit:
mm
Default:
0.0
Minimum:
-1000000.0
Maximum:
100000.0
Data type:
FLOAT
Active:
Immediately
In the machine data 5040: between the piston zero (end stop at A end) and ma-
chine zero must be set in MD 5040: PISTON_ZERO.
If the actual position is available in machine coordinates in the drive after the
reference point approach, it can be applied to calculate the piston position (e.g.
for adaptation).
Actual position
value
4 Firmware Drive Functions
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