20008
[Channel %1: ] Axis %2 reference point approach requires second referenced measuring system
Parameters:
%1 = Channel number
%2 = Axis name, spindle number
Explanation:
When setting MD34200 $MA_ENC_REFP_MODE = 6 the 2nd encoder must first be referenced.
Reaction:
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy:
Modify referencing mode MD34200 $MA_ENC_REFP_MODE or reference 2nd encoder.
Programm
continuation:
Clear alarm with the RESET key. Restart part program
20050
[Channel %1: ] Axis %2 handwheel mode active
Parameters:
%1 = Channel number
%2 = Axis name, spindle number
Explanation:
The axes cannot be traversed in JOG mode using the traversing keys because traversing is still taking place via the
handwheel.
Reaction:
Alarm display.
Remedy:
Decide whether the axis is to be traversed by means of the direction keys or the handwheel. End handwheel travel and
delete the axial distance-to-go if necessary (NC/PLC interface signal DB380x DBX2.2 (Delete distance-to-go/Spindle
reset)).
Programm
continuation:
Alarm display showing cause of alarm disappears. No further operator action necessary.
20051
[Channel %1: ] Axis %2 handwheel mode not possible
Parameters:
%1 = Channel number
%2 = Axis name, spindle number
Explanation:
The axis is already traveling via the traversing keys, so handwheel mode is no longer possible.
Reaction:
Alarm display.
Remedy:
Decide whether the axis is to be traversed by means of the jog keys or via the handwheel.
Programm
continuation:
Alarm display showing cause of alarm disappears. No further operator action necessary.
20052
[Channel %1: ] Axis %2 already active
Parameters:
%1 = Channel number
%2 = Axis name, spindle number
Explanation:
The axis is to traverse as a machine axis in JOG mode using the direction keys on the machine control panel. However,
this is not possible because:
1. It is already traversing as a geometry axis (through the channel-specific interface DB3200 DBX1000.7 / 0.6 (Traversing
keys -/+) or DB3200 DBX1004.7 / 4.6 (Traversing keys -/+) or DB3200 DBX1008.7 / 8.6 (Traversing keys -/+)) or
2. It is already traversing as a machine axis (through the axis-specific interface DB380x DBX4.7 / 4.6 (Traversing keys
plus/minus)) or
3. A frame is valid for a rotated coordinate system, and another geometry axis involved in this is already traversing in JOG
mode by means of the direction keys.
4. As part of a retraction motion (submode JOG-Retract) it cannot be traversed as a machine axis.
Reaction:
Alarm display.
Remedy:
Stop traversing through the channel or axis interface or stop the other geometry axis.
Programm
continuation:
Clear alarm with the Delete key or NC START.
SINUMERIK 808D ADVANCED alarms
5.2 NCK alarms
Diagnostics Manual
302
Diagnostics Manual, 06/2015, 6FC5398-6DP10-0BA2
