Siemens SINUMERIK 840D sl Series Diagnostics Manual page 835

08/2005
Remedy: • Check encoders, encoder lines and connectors between drive motor and 611D module.
Check for temporary interruptions (loose contact) caused, for example, by movements in
trailing cable. If necessary, replace the motor cable.
• Incorrect cable type
• Closed-loop control module defective or not suitable for EnDat interface (e.g. closed-
loop control module with EPROM)
Program Con- Switch control OFF - ON.
tinuation:
300506
Axis %1 drive %2 NC sign-of-life failure
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: 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).
Reactions: - 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: 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 isued 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 accep-
tance instant).
• for f) Check MD 1300 $MD_STS_CONFIG.
Program Con- Switch control OFF - ON.
tinuation:
300507
Axis %1 drive %2 synchronization error of rotor position
Parameters: %1 = NC axis number
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
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