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. When referencing the active position actual value encoder,
the actual value system of the inactive encoder is set to the same reference point value as soon as phase 3 has been
concluded. A later positional difference between the two actual value systems can have occurred only as the result of an
encoder defect or a mechanical displacement between the encoders.
- Check the encoder signals, actual value cable, connectors.
- Check the mechanical fastenings (displacement of the measuring head, mechanical twisting possible).
- Increase the axis-specific MD 36500 $MA_ENC_CHANGE_TOL.
Program continuation is not possible. The program must be canceled with "RESET", then program execution can be
reinitiated with NC START, if necessary at the interruption point after "Block search with/without calculation".
Programm
continuation:
Clear alarm with the RESET key. Restart part program
25105
Axis %1 measuring systems differ considerably
Parameters:
%1 = Axis name, spindle number
Explanation:
The two measuring systems differ considerably, i.e. the cyclically monitored actual value difference between the two
measuring systems is greater than the associated tolerance value set in the machine data MD36510
$MA_ENC_DIFF_TOL. This can only occur when both measuring systems are active (MD30200 $MA_NUM_ENCS = 2)
and referenced. The alarm can be reprogrammed in the MD11412 $MN_ALARM_REACTION_CHAN_NOREADY (channel
not ready).
Reaction:
Mode group not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy:
Please inform the authorized personnel/service department. Check machine data for the active, selected encoders. Check
the machine data relating to encoder (MD36510 $MA_ENC_DIFF_TOL) tolerance.
Programm
continuation:
Restart part program. Clear alarm with the RESET key in all channels of this mode group. Restart part program.
25110
Axis %1 selected encoder not available
Parameters:
%1 = Axis name, spindle number
Explanation:
The selected encoder does not correspond to the maximum number of encoders in the axis-specific MD30200
$MA_NUM_ENCS, i.e. the 2nd encoder does not exist.
Reaction:
Alarm display.
Remedy:
Please inform the authorized personnel/service department. Enter the number of actual value encoders used for this axis
in the MD30200 $MA_NUM_ENCS ("Number of encoders").
Input value 0: Axis without encoder -> e.g. spindle
Input value 1: Axis with encoder -> default setting
Input value 2: Axis with 2 encoders -> e.g. direct and indirect measuring system
Programm
continuation:
Clear alarm with the Delete key or NC START.
25200
Axis %1 requested set of parameters invalid
Parameters:
%1 = Axis name, spindle number
Explanation:
A new parameter set has been requested for the positioning control. The number of this parameter set is beyond the
permissible limit.
SINUMERIK 808D ADVANCED alarms
5.2 NCK alarms
Diagnostics Manual
344
Diagnostics Manual, 06/2015, 6FC5398-6DP10-0BA2
