Siemens Sinumerik 840C Diagnostics Manual page 28

1 Alarms
1.5.1 Alarm description
102 Prewarning overtemperature
Scan
POWER ON
Cyclic
Effect
The first temperature monitoring threshold on the CBS module is activated because the ambient temperature is too
high
Explanation
User is given advance warning.
The working process is not interrupted.
Remedy
A lower temperature level is required to eliminate the fault
103 Initializing error NCK FB
Scan
When powering up the control
Effect
Interlocking of NC START
Follow–up mode
Removal of Mode Group Ready
Explanation
The initialization routine of the NCK FB has returned a value which is not equal to zero. The return value is output
in the alarm as block number N.
Remedy
Check the NCK FB.
Continuation:
The alarm is initiated when powering up the control. No program can be started. Acknowledge alarm by
POWER ON.
S
Note
Alarm 103 is output only if appropriately configured by the machine manufacturer. An error has occurred in the
safety NCK–FB. For more information and remedy, refer to the manufacturer's documentation.Applies as from
SW 5.4.
S
Applies as from SW 5.4.
104 Error in machine data
Scan
When powering up the control
After a warm start
After changing a machine data
Effect
Interlocking of NC START
Follow–up mode
Removal of Mode Group Ready
Explanation
A machine data contains an implausible value. The machine data error is output in the alarm as block number N.
Remedy
Evaluate the block number and correct the corresponding machine data.
Continuation
The alarm is initiated when powering up the control. No program can be started. Acknowledge alarm by
POWER ON.
Note
Applies as from SW 5.4
105 Error in NCK FB
Scan
During cyclic operation of control
Effect
Interlocking of NC START
Follow–up mode
Removal of Mode Group Ready
Interruption of machining
Explanation
The cyclic routines of the NCK FB have returned a value which is not equal to zero.
Remedy
Evaluate the block number and check the NCK FB.
Continuation
No program can be started. Acknowledge alarm by POWER ON.
S
Note
Alarm 105 is output only if appropriately configured by the machine manufacturer. An error has occured in the
safety NCK–FB. For more information and remedy, refer to the manufacturer's documentation.
S
Applies as from SW 5.4
1–20
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SINUMERIK 840C / SIMODRIVE 611–D (DA)
04/96
Acknowledgement key
POWER ON