Siemens SINUMERIK 840C Diagnostics Guide

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Siemens AG 2001 All rights reserved 6FC5198–jAB40
1–37
SINUMERIK 840C / SIMODRIVE 611–D (DA)
2161 Illegal scale modification Reset key
When working in AUTOMATIC or MDA
S 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
longer possible.
S Check programmed axis position
S Reduce scale factor
Alarm is displayed with reference to block and channel
2171 Approach not possible Reset key
When working in AUTOMATIC or MDA
S Machining is interrupted
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 Correct program (G147, G247, G347), programming at least one axis of the selected plane in the block after
the approach.
Alarm is displayed with reference to block and channel
2172 Retraction not possible Reset key
When working in AUTOMATIC or MDA
S Machining is interrupted
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 Correct program (G148, G248, G348, G48), programming at least one axis of the selected plane in the block
before the retraction movement.
Alarm is displayed with reference to block and channel
2173 Approach/retraction plane wrong Reset key
When executing a part program
S Machining is interrupted
S 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 Correct program (plane change)
Alarm is displayed with reference to block and channel
2184 M fct. for C axis switchover not allowed CANCEL
Cyclic
None
M function for C axis ON/OFF (MD 260, MD 261) has been given a value reserved by the system.
Enter the correct value
Scan
Effect
Explanation
Remedy
Note
Scan
Effect
Explanation
Remedy
Note
Scan
Effect
Explanation
Remedy
Note
Scan
Effect
Explanation
Remedy
Note
Scan
Effect
Explanation
Remedy
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