Siemens SINUMERIK 840D sl Series Diagnostics Manual page 389

08/2005
26025
Axis %1 machine data %2[%3] value changed
Parameters: %1 = Axis name, spindle number
%2 = String: MD identifier
%3 = Index: MD array
Definitions: Machine data contains an invalid value and therefore has been changed by the software
internally to a valid value.
Reactions: - Alarm display.
Remedy: Check MD.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
26030
Axis %1 encoder %2 absolute position lost
Parameters: %1 = Axis name, spindle number
%2 = Encoder number
Definitions: The absolute position of the absolute encoder has become invalid because
• on changing parameter block a changed gear stage ratio was identified between
encoder and processing or
• the encoder has been replaced (the absolute encoder's serial number has changed).
Reactions: - Mode group not ready.
- The NC switches to follow-up mode.
- Channel not ready.
- NC Start disable in this channel.
- Axes of this channel must be re-referenced.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
- Channel not ready.
Remedy: Please inform the authorized personnel/service department. Rereferencing/resynchroni-
zation of the absolute encoder; attach absolute encoder on the load side and configure
correctly (e.g. MD 31040 ENC_IS_DIRECT).
If an absolute encoder with serial number is replaced, the drive BOT file for this drive must
be saved (due to the new serial number).
Program Con- Clear alarm with the RESET key in all channels of this mode group. Restart part program.
tinuation:
26031
Axis %1 configuration error master-slave
Parameters: %1 = Axis name, spindle number
Definitions: The alarm is output when the same machine axis has been configured as a master and a
slave axis. Each of the axes in the master/slave link can be operated either as master or
slave.
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.
Remedy: • Check machine data for all linked axes and correct if necessary:
• MD 37250 $MA_MS_ASSIGN_MASTER_SPEED_CMD
• MD 37252 $MA_MS_ASSIGN_MASTER_TORQUE_CTR.
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-389