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6 Programming the control
6.10 Linear motors (1FN1 and 1FN3 motors)
Absolute
measuring system
1FN1 linear motor
If the EnDat serial number
read by the measuring system
is not equal to MD 1025, then MD 1017
is automatically set to 1
If the enables are set, a rotor position identifica-
tion is performed immediately. If the rotor
position identification is not successful, an
error message is output. When the causes of
the error have been remedied and
the error message is acknowledged, a new
identification attempt is made.
Fig. 6-32
Absolute measuring system
6-138
With an absolute measuring system:
START
Motor type?
Yes, secondary conditions met
(MD1075 must be set to 3!)
Set MD 1017 to 1,
Acknowledge alarm 300604
The commutation angle offset
is automatically entered
in MD1016
End
SINUMERIK 840D/810D Start-Up Guide (IADC) – 03/2006 Edition
1FN3 linear motor
If the EnDat serial number read by the
measuring system is not equal to MD 1025
then MD 1017 is not set and
alarm 300604 appears
("Motor encoder is not aligned")
Secondary conditions for
motion-based
rotor position identification met?
No, secondary conditions
not met
The commutation angle offset must
be determined with instrumentation (see
subsection 6.10.8) and entered
manually in MD 1016
Set MD 1017 to –1
The EnDat serial number is read
by the measuring system and entered
automatically in MD1025
Alarm 300799 appears ("Save
bootfiles and perform NCK reset")
Save boot files and
Execute NCK reset
© Siemens AG 2006 All Rights Reserved
03/2006
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