Siemens Sinumerik 840C Diagnostics Manual page 26

1 Alarms
1.5.1 Alarm description
85 Coupled-motion combination wrong
S
Scan
POWER ON
S
Warm restart
S
Effect
Interlocking of NC START
S
Interlocking of Mode Group Ready
S
Interlocking of machining
Explanation
An undefined combination has been input in NC machine data for the coupled axis combination.
Remedy
Correct machine data and perform a warm restart (see Start-up Guide).
87 Illegal software limit switch
S
Scan
After altering machine data
S
Effect
Interlocking of NC START
S
Interlocking of Mode Group Ready
S
Interlocking of machining
Explanation
An excessively large value has been entered in the NC machine data for the software limit switch. The maximum
traversing range of the individual axes results from the axis-specific position control resolution set and the input
resolution. With alarm 87, the control has automatically entered the maximum permissible value in the appropriate
NC machine data.
Remedy
Check machine data for software limit switch and where appropriate correct.
Note
Applies up to SW 2 only
88 Interpolation greater than 3D
S
Scan
When executing part programs in AUTOMATIC or MDA
S
Effect
Interlocking of NC START
S
Interlocking of machining
Explanation
More than 3 axes have been programmed in one block in the part program block of the NC, or the "5D" function is
not active.
S
Remedy
Modify part program
S
Do not execute more than 2 programs at once
89 More than two 3D interpolations
S
Scan
When executing part program blocks in AUTOMATIC or MDA
S
Effect
Interlocking of NC START
S
Machining stops
Explanation
More than 3 axes have been programmed in more than 2 channels in the NC in one program block in each case.
S
Remedy
Modify program
S
Do not execute more than 2 programs at once
90 Customer UMS invalid
S
Scan
At POWER ON when UMS bit is set
Effect
Interlocking of NC START until alarm is acknowledged.
Standard UMS is loaded.
Explanation
Customer UMS faulty or >512 KB.
Remedy
Check customer UMS.
Note
Applies up to SW 2 only
91 ID no. in UMS header faulty
S
Scan
At POWER ON and with activated UMS data
Effect
Interlocking of NC START until alarm is acknowledged.
Explanation
The programmed ID number in the UMS header, which is evaluated by the system software, is incorrect or has
been read incorrectly because the UMS submodules were plugged in incorrectly.
Remedy
Check WS 800A software version.
Note
Applies up to SW 3 only
1–18
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Siemens AG 2001 All rights reserved 6FC5198–jAB40
SINUMERIK 840C / SIMODRIVE 611–D (DA)
04/96
POWER ON
POWER ON
POWER ON
POWER ON
POWER ON
POWER ON