Siemens SINUMERIK 808D ADVANCED Diagnostic Manual page 279

Remedy: Please inform the authorized personnel/service department. Check the possible reasons for termination:
- Servo enable missing: NC/PLC interface signal DB380x DBX2.1 (Servo enable)
- Measuring system switchover: NC/PLC interface signal DB380x DBX1.5 / 1.6 (Position measuring system 1/2)
- Traversing key + or - missing: NC/PLC interface signal DB380x DBX4.7 / 4.6 (Traversing keys plus/minus)
- Feed override = 0
- The feed disable is active
- Exact stop not reached within MD36020 $MA_POSITIONING_TIME.
The axis-specific MD34110 $MA_REFP_CYCLE_NR determines which axes are involved in the channel-specific
referencing.
ValueMeaning
-1: No channel-specific referencing, NC Start without referencing.
0: No channel-specific referencing, NC Start with referencing.
1-8: Channel-specific referencing. The number entered here corresponds to the referencing sequence. (When all axes
with contents 1 have reached the reference point, then the axes with contents 2 start, etc.).
Program Clear alarm with the RESET key. Restart part program
Continuation:
20006 [Channel %1: ] Axis %2 reference point creep velocity not reached
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Definitions: In phase 2 of reference point approach (wait for zero mark), the cam end was reached but the reference point
approach velocity was not within the tolerance window. (This can occur when the axis is already at the end of the cam
at the beginning of reference point approach. Phase 1 is therefore considered as being already concluded and will not
be started.)
Phase 2 has been interrupted (this time before the cam) and the reference point approach will be started once again
automatically with phase 1. If the approach velocity is not reached at the 2nd attempt either, referencing will be stopped
and the alarm displayed.
Approach velocity: MD34040 $MA_REFP_VELO_SEARCH_MARKER
Velocity tolerance: MD35150 $MA_SPIND_DES_VELO_TOL.
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.
Reduce the MD for the approach velocity MD34040 $MA_REFP_VELO_SEARCH_MARKER and/or increase the MD
for the velocity tolerance MD35150 $MA_SPIND_DES_VELO_TOL.
Program Clear alarm with the RESET key. Restart part program
Continuation:
20007 [Channel %1: ] Axis %2 reference point approach requires 2 measuring systems
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Definitions: 2 encoders are needed for setting MD34200 $MA_ENC_REFP_MODE = 6!
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.
Modify reference mode MD34200 $MA_ENC_REFP_MODE or install and configure a second encoder.
Program Clear alarm with the RESET key. Restart part program
Continuation:
20008 [Channel %1: ] Axis %2 reference point approach requires second referenced
measuring system
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Diagnostics Manual
Diagnostics Manual, 08/2013, 6FC5398-6DP10-0BA1
SINUMERIK 808D ADVANCED alarms
3.2 NCK alarms
279