Download Siemens SINUMERIK 802D sl Specifications

Transcript
06/2007
Overview of alarms
NCK alarms/ISO alarms
Breakdown of fine error codes:
(Bit 0 not used)
Bit 1 Parity error
Bit 2 Alarm bit of the encoder
Bit 3 CRC error
Bit 4 Timeout - start bit for EnDat transfer is missing
This alarm is only displayed, as the absolute position itself is not required at this time for control/contour.
A frequent occurrance of this alarm indicates that the absolute encoder transfer or the absolute
encoder itself is faulty, and that an incorrect absolute value could be determined in one of the next
encoder selection or power on situations.
Reaction:
Alarm display.
Remedy:
a. Verify encoder adjustment (machine reference ) or readjust encoder.
b. Replace the encoder, replace or screen the encoder cable (or deactivate zero mark monitoring).
Program Continuation:
Clear alarm with the Delete key or NC START.
25030
Axis %1 actual velocity alarm limit
Parameters:
%1 = axis name, spindle number
Definitions:
The actual velocity of the axis is checked once in every IPO cycle. If there are no errors, the actual
velocity can never exceed the setting specified in the axis-specific MD 36200 AX_VELO_LIMIT
(threshold for velocity monitoring). This threshold value in [mm/min, rev/min] is input by an amount
that is about 5 to 10% greater than that which can occur at maximum traversing velocity. Drive errors
can result in the velocity being exceeded and the alarm is then triggered.
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 speed setpoint cable (bus cable).
Check the actual values and direction of position control.
Reverse the position control direction accelerates in an uncontrolled manner ( axis-specific MD 32110
ENC_FEEDBACK_POL = < -1, 0, 1 >.
Increase monitoring limit in MD 36200 AX_VELO_LIMIT.
Program Continuation:
Teileprogramm neu starten.Clear alarm with the RESET key in all channels of this mode group.
Restart part program.
25031
Axis %1 actual velocity warning limit
Parameters:
%1 = Axis name, spindle number
Definitions:
The present velocity actual value is more than 80% of the limit value defined in the machine data -not used --
Reaction:
Alarm display.
Remedy:
-
Program Continuation:
Clear alarm with the Delete key or NC START.
25040
Axis %1 standstill monitoring
Parameters:
%1 = axis name, spindle number
Definitions:
The NC monitors to ensure that the position is held at zero speed. The monitor is activated after an
adjustable axial time period in MD 36040
STANDSTILL_DELAY_TIME which follows completion of interpolation. A continuous check is made
to ascertain whether the axis is within the tolerance threshold in MD 36030 STANDSTILL_POS_TOL.
" Siemens AG 2007 All Rights Reserved
SINUMERIK 802D sl, Diagnostics Manual, 06/2007Edition
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