01/2007
11.5 Axes and spindles
11-375
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
Axis–specific ($MA_ ... )
36000 STOP_LIMIT_COARSE Exact stop coarse
36010 STOP_LIMIT_FINE Exact stop fine
32200 POSCTRL_GAIN K
V
factor
36400 CONTOUR_TOL Contour monitoring
Table 11-43 Spindle positioning: Interface signals
DB number
Bit, byte Name Refer-
ence
Axis–specific Signals from axis/spindle to PLC
31, ... 60.6
Position reached with exact stop ”fine”
31, ... 60.7
Position reached with exact stop ”coarse”
31, ... 84.5
Positioning mode
11.5.26 Synchronizing spindle
To allow the spindle to be positioned from the NCK, its position has to be ad-
justed using the measuring system. This operation is called ”synchronization”.
As a rule, synchronizing is done to the zero mark of the connected encoder or
to a BERO as zero mark substitute.
Machine data
S MD34100: REFP_SET_POS (reference point value)
defines the actual position of the spindle at the zero mark position.
The machine data
S MD34090: REFP_MOVE_DIST_CORR (reference–point offset)
is used to enter the zero mark offset.
Machine data
S MD34200 ENC_REFP_MODE (Referencing mode)
specifies which signal is used for synchronization:
1 = encoder zero mark
2 = BERO.
The drive SIMODRIVE 611 universal supports the connection of a BERO as a
zero mark substitute for synchronizing the spindle.
For the exact procedure of operating a BERO on SIMODRIVE 611 universal,
see:
References: /FBU/ Descriptions of Functions SIMODRIVE 611 universal
Section:Motion Control with PROFIBUS DP (as from SW 3.1)
Zero mark substitute via PROFIBUS
Interface signals
SIMODRIVE 611
universal
11 NCK Commissionin
with HMI Advanced
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