Program Continuation:

Axis %1 drive %2 CRC error, error location %3

%1 = NC axis number %2 = Drive number %3 = Error location

The cross-check (CRC) has detected an access error in a write/read cycle. All bus accesses are not controlled directly by the processor but they are handled by special ASICs. They transfer not only the required data but also cross-checks for the write/read data and the addresses.

The error can occur in conjunction with a power failure of one or several drive modules. A hardware fault might also be the cause (ASICs, bus, drive modules).

-    NC not ready.

-    The NC switches to follow-up mode.

-    Mode group not ready, also effective for single axes

-    NC Start disable in this channel.

-    Axes of this channel must be re-referenced.

-    Interface signals are set.

-    Alarm display.

Please inform the authorized personnel/service department. If the alarm has occurred in conjunction with a power failure, this cause of failure must be eliminated. Otherwise, please contact the system support for A&D MC products, SIEMENS AG, through the Hotline (tel.: see alarm 1000).

Switch control OFF - ON.


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