Siemens SINUMERIK 840C Diagnostics Guide

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Siemens AG 2001 All rights reserved 6FC5198–jAB40
1–40
SINUMERIK 840C / SIMODRIVE 611–D (DA)
2503 Not enough memory available Reset key
When starting a program from external
S NC START is interrupted
The alarm is displayed
S When the memory set in MD30 is not available for the program to be processed externally.
S Make sufficient part program memory available (delete part programs)
S Lower value in MD30
Channel-specific
2504 Emergency retract triggered Reset key
Cyclic in the servo cycle when LINK_ON for the following axis (from servo).
Machining interrupt, interlocking of NC START; removal of Mode Group Ready.
The threshold MD “Emergency retraction threshold” programmed for monitoring of synchronism has been excee-
ded and emergency retraction triggered.
Prerequisite: Enable by means of PLC IS “Emergency retraction enabled”.
Inspect the drives; check the velocity and acceleration limit values of the following axis/spindle; check the emer-
gency retraction threshold; check the link factors.
Applies as from SW 3. Alarm is displayed with reference to channel
2505 Error in NCK FB
During cyclic operation of control
Interlocking of NC START
Follow–up mode
Removal of Mode Group Ready
Interruption of machining
The machine data for the SGE/SGA input/output allocations (46000 – 47999) have been entered incorrectly. The
incorrect MD No. is output in the alarm as block no. Nxxxxx.
Correct the indicated machine data.
No program can be started. Acknowledge alarm by RESET.
S The alarm 2505 is only output if configured correspondingly by the machine manufacturer. An error has
ocurred in the Safety–NCK–FB. For explanation and remedy, please refer to the machine manufacturer‘s doc-
umentation.
S Applies as from SW 5.4
2506 Extended function outp. in target block
During block preprocessing in AUTOMATIC or MDA
Interlocking of NC–START
The target block during block preprocessing cannot be a G511/G522 block, as the output of accumulated miscella-
neous functions and the extended output of the G511/G522 block collide functionally.
Select another target block.
Channel–specific reset alarm (as from SW 5.4), alarm is displayed with reference to channel
Scan
Effect
Explanation
Remedy
Note
Scan
Effect
Explanation
Remedy
Note
Scan
Effect
Explanation
Remedy
Continuation
Note
Scan
Effect
Explanation
Remedy
Note
1 Alarms
1.5.1 Alarm description
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Siemens SINUMERIK 840C Specifications

General

Brand	Siemens
Model	SINUMERIK 840C
Category	Control Unit
Language	English