Siemens SINUMERIK 840D sl Series Diagnostics Manual page 372

Overview of Alarms
are found. Switch off the monitoring with the corresponding interface signal (DB 31 - 48,
DBX 1.5 = 0 or DBX 1.6 = 0). o
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
25010
Axis %1 pollution of measuring system
Parameters: %1 = Axis name, spindle number
Definitions: 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).
Reactions: - Mode group not ready.
- The NC switches to follow-up mode.
- Channel not ready.
- NC Start disable in this channel.
- Axes of this channel must be re-referenced.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
- Channel not ready.
Remedy: Please inform the authorized personnel/service department. Check the measuring system
in accordance with the instructions given by the measuring device manufacturer.
Program Con- Clear alarm with the RESET key in all channels of this mode group. Restart part program.
tinuation:
25011
Axis %1 pollution of passive encoder
Parameters: %1 = Axis name, spindle number
Definitions: The encoder not used for position control sends a contamination signal (only in measur-
ing systems with contamination signal).
Reactions: - Alarm display.
Remedy: Please inform the authorized personnel/service department. Check the measuring system
in accordance with the instructions given by the measuring device manufacturer.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
25020
Axis %1 zero mark monitoring of active encoder
Parameters: %1 = Axis name, spindle number
Definitions: 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).
Reactions: - Mode group not ready.
- The NC switches to follow-up mode.
- Channel not ready.
- NC Start disable in this channel.
- Axes of this channel must be re-referenced.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005