Siemens Sinumerik 840DiE sl - Page 352

01/2007
11.5 Axes and spindles
11-352
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
and stopping the machine axis using a speed setpoint ramp whose characteris-
tic is set in
S MD36610: AX_EMERGENCY_STOP_TIME (Time for braking ramp when
an error occurs)
Cause of errors/error handling
Contour errors are caused by signal distortions in the position control loop.
Remedy:
S Increase the tolerance band
S Check the Kv factor.
The real servo gain must correspond to the desired servo gain set by
MD32200: POSCTRL_GAIN[n](Kv factor).
HMI–Advanced
Operating area DIAGNOSIS > Service displays > Service of axis
S Check optimization of the speed controller
S Check smooth running of the axes
S Check machine data for traversing movements
(feed override, acceleration, max. speeds, ... )
S for operation with feedforward control:
MD32810: EQUIV_SPEEDCTRL_TIME (equivalent time constant of speed
control loop for feedforward control)
If the machines are set too inexactly,
MD 36400: CONTOUR_TOL must be increased.
Monitoring of the limit frequency of the encoder of a machine axis.
S MD36300: ENC_FREQ_LIMIT (encoder limit frequency)
Error response
S Interrupt: ”21610 Encoder frequency exceeded”
S IS: DB31, ... DBX60.2 ”Encoder limit frequency exceeded 1”
S IS: DB31, ... DBX60.3 ”Encoder limit frequency exceeded 2”
and stopping the machine axis using a speed setpoint ramp whose characteris-
tic is set in
S MD36610: AX_EMERGENCY_STOP_TIME (Time for braking ramp when
an error occurs)
Cause of errors/error handling
The position control resumes automatically after the axes have stopped.
Notice
The axis affected must be rereferenced.
Encoder
limit frequency
monitoring
11 NCK Commissionin
g
with HMI Advanced