Siemens SINUMERIK 840D sl Series Diagnostics Manual page 340

Overview of Alarms
Definitions: Interpolatory compensation with tables. The two tables whose outputs are to be multiplied
together have different output axes assigned to them. The compensation in this axis is
automatically switched off.
Reactions: - Interface signals are set.
- Alarm display.
Remedy: Please inform the authorized personnel/service department. Check and correct the char-
acteristic data in the compensation table ($AN_CEC_OUTPUT_AXIS and
$AN_CEC_MULT_BY_TABLE).
If the error cannot be found, the alarm can be suppressed by switching off the compensa-
tion in the axis ($MA_CEC_ENABLE) or the tables, ($SN_CEC_TABLE_ENABLE).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
20124
Axis %1: sum of compensation values too large
Parameters: %1 = Axis name, spindle number
Definitions: The sum of the compensation values from all tables assigned to the axis had exceeded
the limit value $MA_CEC_MAX_SUM and had to be limited. Contour errors could have
occurred as a result.
Reactions: - Interface signals are set.
- Alarm display.
Remedy: Check characteristic data of the compensation tables assigned to the axis.
Check characteristic curves in the tables ($AN_CEC).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
20125
Axis %1: change of compensation value is too rapid
Parameters: %1 = Axis name, spindle number
Definitions: The compensation value has changed more rapidly than has been allowed for in 32730
CEC_MAX_VELO. It had to be limited temporarily. The missing section is repeated later
but contour errors might have occurred.
Reactions: - Interface signals are set.
- Alarm display.
Remedy: Check characteristic data of the compensation tables assigned to the axis.
Check characteristic curves in the tables ($AN_CEC). Possibly one of the input axes has
moved more rapidly than provided for.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
20130
Channel %1 contour tunnel monitoring
Parameters: %1 = Channel number
Definitions: The tool tip has exited the tunnel placed around the desired contour, i.e. the distance
between tool tip and desired contour was greater than specified in the MD 21050
CONTOUR_TUNNEL_TOL.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reactions: - 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.
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005