Siemens SINUMERIK 840D Series Diagnostics Manual page 480

1 Alarms
Reactions:
Remedy:
Program Continuation:
300506
Parameters:
Definitions:
Reactions:
Remedy:
1-480
- Mode group not ready.
- Channel not ready.
- 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.
• 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)
Switch control OFF - ON.
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.
- Channel not ready.
- 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.
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 configura-
tion. 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.
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
 Siemens AG, 2002. All rights reserved
11.02