Siemens SINUMERIK 802D sl Specifikace stáhnout pdf (Strana 252)

Overview of alarms 06/2007

NCK alarms/ISO alarms

2-252

SINUMERIK 802D sl, Diagnostics Manual, 06/2007Edition

The following scenarios are possible:

1.The interface signal SERVO ENABLE (V 380x0002.1) is zero because the axis is clamped mechan-

ically. Due to mechanical influences (e.g. high machining pressure), the axis is pushed away from the

permissible position tolerance.

2.With a closed position control loop (without clamping) – interface signal SERVO ENABLE(V

380x0002.1) is ”1” – the axis is pushed out of

position by high mechanical forces with low gain in the position control loop.

Reaction: 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.

Remedy: Check MD 36040 STANDSTILL_DELAY_TIME and

MD 36030 STANDSTILL_POS_TOL and increase if necessary.

Estimate the machining forces and lower if necessary by feedrate reduction/speed increase.

Increase the clamping pressure.

Increase the gain in the position control loop by improved optimization (servo gain factor MD 32200

POSCTRL_GAIN).

Program Con-

tinuation:

Teileprogramm neu starten.Clear alarm with the RESET key in all channels of this mode group.

Restart part program.

25042 Axis %1 standstill monitoring during torque/force limitation

Parameters: %1 = Axis name, spindle number

Definitions: The defined end position was not reached within the time specified in the machine data.

Reaction: 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.

Remedy: - 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 position -> increase

MD 36042 FOC_STANDSTILL_DELAY_TIME.

Program Con-

tinuation:

Teileprogramm neu starten.Clear alarm with the RESET key in all channels of this mode group.

Restart part program.

25050 Axis %1 contour monitoring

Parameters: %1 = axis name, spindle number

Definitions: The NC 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.

Reaction: 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.

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Siemens SINUMERIK 802D sl Specifikace Strana 252

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