Siemens SINUMERIK 802S Diagnostics Manual page 82

1 Alarms
Response
Remedy
Program continua-
tion by
25 050
Explanation
Response
Remedy
Program continua-
tion by
25 060
Explanation
1-82
Channel not ready for operation.
NC Start inhibited.
NC Stop at alarm.
The NC changes to follow-up mode.
Alarm display.
Interface signals are set.
•
Check MD 36 040 STANDSTILL_DELAY_TIME and
MD 36 030 STANDSTILL_POS_TOL and increase if necessary.
•
Estimate machining forces and reduce by feed reduction/speed increase if
necessary.
•
Increase clamping pressure.
•
Increase gain in the open-loop position control circuit by improved opti-
mization (loop-gain factor MD 32 200 POSCTRL_GAIN).
Press the RESET key to clear the alarm. Restart part program.
Axis %1 contour monitoring
%1 = Axis name, spindle number
The NCK calculates the actual value for each interpolation point (setpoint) of
an axis, which should result from an internal model. If the difference amount
between this calculated actual value and the real machine actual value is higher
than the amount set in MD CONTOUR_TOL, the program is aborted and the
alarm output.
Channel not ready for operation.
NC Start inhibited.
NC Stop at alarm.
The NC changes to follow-up mode.
Alarm display.
Interface signals are set.
•
Check optimization of the position controller (loop-gain factor in MD
32 200 POSCTRL_GAIN) to make sure that the axis follows the setpoint
setting dead-beat. Otherwise, speed controller optimization must be im-
proved or the loop-gain factor (K v
•
Check acceleration in MD 32 300 MAX_AX_ACCEL. If the current
limits are reached because of too high acceleration, the open-loop position
control is disconnected as a result of this. The "lost" actual value is recov-
ered in the form of an overshoot as soon as the open-loop position control
circuit is closed again.
•
Improve speed controller optimization
•
Check mechanics (smooth running, rotational masses).
Press the RESET key to clear the alarm. Restart part program.
Axis %1 desired speed limit
%1 = Axis name, spindle number
The speed setpoint has exceeded its upper limit MD 36 210
CTRLOUT_LIMIT longer than allowed. The specified axis speed exceeds
the motor nominal speed set in MD 32 260 RATED_VELO.
6FC5598-3AA20-0BP2
factor) be reduced
.
© Siemens AG 2002 All Rights Reserved
SINUMERIK 802S/802C (DG)
01.02