Siemens SINUMERIK 840D Diagnostics Manual page 361

10.04
Reactions:
Remedy:
Program Continuation:
25042
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
25050
Parameters:
Definitions:
Reactions:
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
- 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.
Please inform the authorized personnel/service department.
• Check MD 36040 STSTILL_DELAY_TIME and MD 36030 STSTILL_POS_TOL;
increase if necessary. The value must be greater than the machine data "Exact stop -
coarse" ($MA_STOP_LIMIT_COARSE).
• Estimate machining forces and reduce if necessary by setting a lower feed or a higher
rotational speed.
• Increase clamping pressure.
• Increase the gain in the position control loop by improved optimization (Kv factor MD
32200 POSCTRL_GAIN, 611D drive).
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Axis %1 standstill monitoring during torque/force limitation
%1 = Axis name, spindle number
The defined end position was not reached within the time specified in the machine data.
- 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.
• If the drive torque (FXST) was set too low with the result that the force of the motor was
not sufficient to reach the end position -> increase FXST.
• If the machined part is slowly deformed, there may be a delay in reaching the end posi-
tion -> increase MD 36042 FOC_STANDSTILL_DELAY_TIME.
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Axis %1 contour monitoring
%1 = Axis name, spindle number
The NCK calculates for each interpolation point (setpoint) of an axis the actual value that
should result based on an internal model. If this calculated actual value and the true
machine actual value differ by a larger amount than given in the machine data 36400
CONTOUR_TOL, then the program is aborted and the alarm message is issued.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- 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.
1 Alarms
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