Siemens SINUMERIK 808D ADVANCED Diagnostic Manual page 300

SINUMERIK 808D ADVANCED alarms
5.2 NCK alarms
Programm Clear alarm with the RESET key. Restart part program
continuation:
20003 [Channel %1: ] Axis %2 measuring system error
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Explanation: In a measuring system with distance-coded reference marks, the distance between two adjacent markers has been found
to be more than twice the value entered in MD34300 $MA_ENC_REFP_MARKER_DIST. The control does not issue the
alarm until it has again detected a distance that is too long after having made a 2nd attempt in reverse direction with half
the traversing velocity.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Determine the distance between 2 odd reference marks (reference mark interval). This value (which is 20.00 mm on
Heidenhain scales) must be entered in MD34060 $MA_REFP_MAX_MARKER_DIST.
Check the reference track of the scale including the electronics for the evaluation.
Programm Clear alarm with the RESET key. Restart part program
continuation:
20004 [Channel %1: ] Axis %2 reference mark missing
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Explanation: In the distance-coded length measurement system, 2 reference marks were not found within the defined searching distance
(axis-specific MD34060 $MA_REFP_MAX_MARKER_DIST).
A reduction cam is not required for distance-coded scales (but an existing cam will be evaluated). The conventional direction
key determines the direction of search.
The searching distance MD34060 $MA_REFP_MAX_MARKER_DIST, within which the two reference marks are expected
is counted commencing at the start point.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department.
Determine the distance between 2 odd reference point markers (reference point marker interval). This value (which is
20.00 mm on Heidenhain scales) must be entered in the MD34060 $MA_REFP_MAX_MARKER_DIST.
Check the reference point track of the scale including the electronics for the evaluation.
Programm Clear alarm with the RESET key. Restart part program
continuation:
20005 [Channel %1: ] Axis %2 reference point approach canceled
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Explanation: Referencing could not be completed for all stated axes (e.g., cancelation caused by missing servo enable, measuring
system switchover, release of direction key, etc.).
In distance-coded measuring systems, the alarm will also be displayed if the value 1 has been set in MD34000
$MA_REFP_CAM_IS_ACTIV (reference cams) and one of the conditions stated in the remedy has been fulfilled.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
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Diagnostics Manual, 06/2015, 6FC5398-6DP10-0BA2
Diagnostics Manual