Siemens Sinumerik 840C Diagnostics Manual page 45

04/96
07/97
2161 Illegal scale modification
Scan
When working in AUTOMATIC or MDA
S
Effect
Interlocking of NC START
S
Machining is interrupted
With a scale factor of & 1, an axis position was programmed which was so large that internal representation is no
Explanation
longer possible.
S
Remedy
Check programmed axis position
S
Reduce scale factor
Note
Alarm is displayed with reference to block and channel
2171 Approach not possible
Scan
When working in AUTOMATIC or MDA
S
Effect
Machining is interrupted
Explanation
In the block after approach, no axis for the selected plane (G16, G17, G18, G19) has been programmed, so that a
vector to the tangential approach cannot be calculated.
S
In the selection block, or in the following block for soft approach, @714 has been programmed.
S
Remedy
Correct program (G147, G247, G347), programming at least one axis of the selected plane in the block after
the approach.
Note
Alarm is displayed with reference to block and channel
2172 Retraction not possible
Scan
When working in AUTOMATIC or MDA
S
Effect
Machining is interrupted
Explanation
In the block before retraction no axis for the selected plane (G16, G17, G18, G19) has been programmed, so that
a vector to the tangential exit cannot be calculated.
S
In the deselection block or in the previous block @714 has been programmed
S
G48 programmed without previous selection
S
More than 5 axes are traversed in the deselection block because 1 axis has been added to the plane.
S
Remedy
Correct program (G148, G248, G348, G48), programming at least one axis of the selected plane in the block
before the retraction movement.
Note
Alarm is displayed with reference to block and channel
2173 Approach/retraction plane wrong
Scan
When executing a part program
S
Effect
Machining is interrupted
S
Explanation
A plane change is programmed in the block after selection (G16, G17, G18, G19)
S
A plane change is programmed in the deselection block
S
Remedy
Correct program (plane change)
Note
Alarm is displayed with reference to block and channel
2184 M fct. for C axis switchover not allowed
Scan
Cyclic
Effect
None
Explanation
M function for C axis ON/OFF (MD 260, MD 261) has been given a value reserved by the system.
Remedy
Enter the correct value
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SINUMERIK 840C / SIMODRIVE 611–D (DA)
1 Alarms
1.5.1 Alarm description
Reset key
Reset key
Reset key
Reset key
CANCEL
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