Siemens SINUMERIK 840D Diagnostics Manual page 553

10.04
300506
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300507
Parameters:
Definitions:
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SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
Axis %1 drive %2 NC sign-of-life failure
%1 = NC axis number
%2 = Drive number
Upon servo enable, the NC must update the sign-of-life monitoring in each position con-
trol cycle. In case of error, sign-of-life monitoring has not been updated.
Cause:
• a) NC no longer updates the sign-of-life as a reaction to an alarm (e.g. 611D alarm)
• b) Fault occurred during communication via the drive bus
• c) Hardware error on the drive module
• d) NC fault
• e) For 840D: Value of the machine data MD10082: $MN_CTRLOUT_LEAD_TIME (Off-
set of the setpoint acceptance instant) is too great
• f) MD 1003 $MD_STS_CONFIG not set correctly (e.g. zero)
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- 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.
Please inform the authorized personnel/service department.
• for a) Determine whether the sign-of-life monitoring failure is a sequential fault. A
sequential fault arises, e.g. through: Fault/alarm from axis x with an n-axis configuration. If
this fault profile arises, the above-stated error message will be issued for all n-axes,
although there is only a fault/alarm at axis x. ==Remedy the error at axis x == sign of life
of the other axes is irrelevant.
• for b) Check cable connection, perform remedial measures (check shielding or ground
connection).
• for c) Change controller module.
• for d) See NC Diagnostics Guide and change NC hardware if necessary.
• for e) Correctly set the machine data 840D MD10082: $MN_CTRLOUT_LEAD_TIME
(Offset of the setpoint acceptance instant) with the machine data MD10083:
$MN_CTRLOUT_LEAD_TIME_MAX (Maximum settable offset of the setpoint acceptance
instant).
• for f) Check MD 1300 $MD_STS_CONFIG.
Switch control OFF - ON.
Axis %1 drive %2 synchronization error of rotor position
%1 = NC axis number
%2 = Drive number
There is a difference of more than 45° electrical between the present rotor position (C/D
track) and the new rotor position as determined by fine synchronization. Faults may have
occurred in the encoder or zero marker signals.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
1 Alarms
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