08.2012 Technology Option F01
Siemens AG 6SE7087-6QX70 (Version AN)
SIMOVERT MASTERDRIVES Compendium Motion Control 9-143
3) Connect the position setpoint extrapolator (U800.1, U800.2) and
sign-of-life signal monitoring (U807) (FP 170) to the receive data of
the PROFIBUS (FP 120).
WRITE 807 0 3013 ; Sign-of-life signal from PROFIBUS
to sign-of-life monitoring
WRITE 2800 1 3041 ; Position of the virtual master axis
from PROFIBUS to extrapolator
WRITE 2800 2 3045 ; Velocity of the virtual master axis
from PROFIBUS to extrapolator
4) Sign-of-life signal valid (B0241) on communication fault (U801) of
the position setpoint extrapolator connect, set axis cycle length
(U802) of the extrapolator.
WRITE 2801 0 241 ; Sign-of-life signal to position
extrapolator
WRITE 2802 0 4096 ; Axis cycle length extrapolator
(based on U687!)
5) Connect position/velocity setpoint input of the synchronism
(U600/U606) to the position setpoint output.
WRITE 2600 3 846 ; Position VM from extrapolator to
SY input position setpoint
WRITE 2600 6 847 ; Speed setpoint VM from
extrapolator to SY input
V setpoint [%]
WRITE 2606 0 2 ; Switchover master value source
6) Set the nominal master velocity of the virtual master axis (U682 in
function diagram 832) and the normalization velocity master in
synchronism (U607.2 in function diagram 834) to the same value.
WRITE 2682 0 x ; Nominal master velocity of the
virtual master axis
WRITE 2607 2 x ; Normalization velocity master in
synchronism
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