Siemens SINUMERIK 840D sl Series Diagnostics Manual page 336

Overview of Alarms
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
- Channel not ready.
Remedy: Check whether
• there is a pulse disable from the infeed/regenerative-feedback unit or from the PLC?
• the acknowledgement bits have been deleted by the PLC even though NCK has not
requested deselection?
Program Con- Clear alarm with the RESET key in all channels of this mode group. Restart part program.
tinuation:
20095
Axis %1 illegal torque, current torque %2
Parameters: %1 = Axis name, spindle number
%2 = Current holding torque when brake test selected
Definitions: The current holding torque, when brake test selected, cannot be attained with the present
parameterization of the brake test.
Reactions: - Alarm display.
Remedy: Check the parameterization for the brake test function check:
• The torque for the counterweight in the drive machine data 1192 should be nearly the
same as the current holding torque. The current holding torque is displayed in the alarm
text.
• The torque set for the $MA_SAFE_BRAKETEST_TORQUE must be greater than the
current holding torque.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
20096
Axis %1 brake test aborted, additional information %2
Parameters: %1 = Axis name, spindle number
%2 = Error information based on $VA_FXS_INFO
Definitions: The brake test has detected a problem. The additional info provides more detailed infor-
mation on the cause of the alarm. The explanation can be found in the $VA_FXS_INFO
system variable documentation.
Additional information:
0: No additional information available.
1: Axis type is not a PLC or command axis.
2: End position reached, motion completed.
3: Abort by NC RESET (key reset).
4: Moved out of monitoring window.
5: Torque reduction rejected by drive.
6: PLC has cancelled enables.
Reactions: - Interface signals are set.
- Alarm display.
Remedy: Note the supplementary conditions of the brake test, see additional info.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
20097
Axis %1 incorrect travel direction brake test
Parameters: %1 = Axis name, spindle number
Definitions: Due to the selected travel direction, the brake test for the current load torque is performed
with an incorrect torque.
Reactions: - Alarm display.
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005