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© Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of System Error Alarms 1
1.1 Subject matter of this manual
This manual is intended as a work of reference. It allows the operator at the
machine tool:
− To correctly assess special situations when operating the machine.
− To ascertain the reaction of the system to the special situation.
− To utilize the possibilities for continued operation following the special sit-
uation.
− To follow references to other documentation containing further details.
Scope
This manual describes the alarms / messages from the NC kernel (NCK) area,
the PLC and the drives.
For special situations in conjunction with the integrated PLC, please refer to the
SIMATIC S7-300 documentation.
The alarms are sorted by ascending alarm number in each section. There are
gaps in the sequence.
1.2 Structure of alarm description
Each alarm consists of an alarm number and alarm text. There are four descrip-
tion categories:
• Explanation
• Reaction
• Remedy
• Program continuation
For a more detailed explanation of the "Reaction" category, please refer to
section: "System reactions on alarms"
For a more detailed explanation of the "Program continuation" category, please
refer to the section: "Clear criteria for alarms"
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