Siemens SINUMERIK 840D Series Diagnostics Manual page 320
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1 Alarms
25001
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
25010
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
25011
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
25020
Parameters:
Definitions:
1-320
Axis %1 hardware fault of passive encoder
%1 = Axis name, spindle number
The signals from the position actual value encoder that is presently not active are missing,
or they are not of the same phase, or they exhibit grounding/short-circuit.
- Alarm display.
Please inform the authorized personnel/service department. Check measuring circuit con-
nectors for correct contacting. Check encoder signals and replace the encoder if faults are
found. Switch off the monitoring with the corresponding interface signal (DB 31 - 48, DBX
1.5 = 0 or DBX 1.6 = 0).
Clear alarm with the RESET key. Restart part program
Axis %1 pollution of measuring system
%1 = Axis name, spindle number
The encoder used for position control sends a contamination signal (only in measuring
systems with contamination signal).
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- Mode group not ready.
- Channel not ready.
- If the axis is a single axis when this alarm is triggered, the alarm is only effective for this
axis (not effective for e.g. the channel or mode group)
- Channel not ready.
- NC Start disable in this channel.
- NC Stop on alarm.
- The NC switches to follow-up mode.
- Alarm display.
- Interface signals are set.
- Axes of this channel must be re-referenced.
Please inform the authorized personnel/service department. Check the measuring system
in accordance with the instructions given by the measuring device manufacturer.
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Axis %1 pollution of passive encoder
%1 = Axis name, spindle number
The encoder not used for position control sends a contamination signal (only in measuring
systems with contamination signal).
- Alarm display.
Please inform the authorized personnel/service department. Check the measuring system
in accordance with the instructions given by the measuring device manufacturer.
Clear alarm with the Delete key or NC START.
Axis %1 zero mark monitoring of active encoder
%1 = Axis name, spindle number
The position encoder pulses between 2 zero marker pulses are counted (hardware func-
tion). A check is made in the interpolation cycle grid (standard setting 4 ms) as to whether
the encoder always issues the same number of pulses between the zero markers. As
soon as a difference is registered in the 4 counter bits of lowest significance, an alarm is
triggered!
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
Siemens AG, 2002. All rights reserved
11.02
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