Siemens SINUMERIK 840C Diagnostics Guide

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Siemens AG 2001 All rights reserved 6FC5198–jAB40
1–72
SINUMERIK 840C / SIMODRIVE 611–D (DA)
1256* Retraction axis is following axis Reset key
On decoding the retraction command
None
Alarm occurs when a following axis is defined as retraction axis because the link is violated by the retraction.
Also, the overlay must be enabled by the PLC.
Select another retraction axis.
Applies as from SW 4
1260* Retraction axis in several channels Reset key
With configuration G425/6
Machining interrupt
An axis has been programmed as retraction axis that has already been selected in another channel for retraction.
Remove axis from the retraction block.
Applies as from SW 4
1264* Sel./desel. endl. rot. axis illegal Reset key
On decoding
Machining interrupt
An endlessly rotating rotary axis programmed for a retraction operation should be switched over to normal axis
operation.
Before deselecting the endless rotary axis, write a G block without this rotary axis.
Applies as from SW 4
1268* IKA path reconfiguration illegal Reset key
When programming G401/G411
Interlocking of NC Start
Interlocking of NC Stop
S An IKA path has been defined that is already configured.
S An attempt has been made to delete with G411 an IKA path that is still active.
Activate an IKA path that is not yet configured. On deselection: Switch IKA inactive.
1272* Error in IKA path input/output Reset key
When programming G401/411/G412
Interlocking of NC Start, NC Stop
If an input/output value is specified with G410/G411/412 that does not correspond to the configuration or is not
permissible, this alarm is triggered.
Specify input/output correctly or omit I/O designation with G410.
1276* Illegal software limit switch POWER ON
S After changing MD
S Interlocking of NC START
S Interlocking of Mode Group Ready
S Interlocking of machining stops
An impermissibly high value has been entered in the software limit switch NC MD. The maximum traversing range
of the individual axes is determined by the set axis-specific position control resolution and the input resolution. The
control entered the maximum permissible value in the relevant NC MD when alarm 87 was triggered.
Check software limit switch machine data and correct if necessary.
Applies as from SW 3
Scan
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Scan
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Explanation
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1 Alarms
1.5.1 Alarm description

Siemens SINUMERIK 840C Specifications

General

Brand	Siemens
Model	SINUMERIK 840C
Category	Control Unit
Language	English