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Siemens AG 2001 All rights reserved 6FC5198–jAB40
1–17
SINUMERIK 840C / SIMODRIVE 611–D (DA)
78 Mode group no. of spindle invalid POWER ON
S At POWER ON
S Interlocking of NC START
S Interlocking of Mode Group Ready
S Interlocking of NC Ready relay
S Interlocking of machining
Check and correct machine data for axis assignment and spindle assignment.
S Check and correct machine data for “Mode group of spindle”
S Perform POWER ON
79 Mode group no. of channel invalid POWER ON
S At POWER ON
S Interlocking of NC START
S Interlocking of Mode Group Ready
S Interlocking of NC Ready relay
S Interlocking of machining
An incorrect assignment (e.g. channel gap) has been made in the channel-specific machine data for “Channel
valid in mode group”.
S Check machine data
S Perform POWER ON
80 Error in C axis definition POWER ON
S At POWER ON and warm restart
S Interlocking of NC START
S Interlocking of Mode Group Ready
S Interlocking of NC Ready relay
S Machining stops
S If C axes and spindles are incorrectly assigned, the spindle does not appear in the service display.
The C axes assigned to the spindles were either defined as non-existent or fictitious during installation, or the
spindle and assigned C axis mode groups are not identical.
Check and correct axis-specific machine data bits 564*, axis-specific machine data 360* and spindle-specific ma-
chine data 453* and 461*.
84 Coupled motion grouping defined wrong POWER ON
S At POWER ON
S At warm restart
S Interlocking of NC START
S Interlocking of Mode Group Ready
S Interlocking of machining
An illegal coupled axis grouping has been set for the assignment of coupled axes in machine data, e.g.:
S The axes do not belong to the same mode group
S The axes have different position control resolutions
S The axes are of different types (linear axis/rotary axis)
S The axes are declared as being not present
S The axes are fictitious
S The leading axis is defined as a coupled axis
Correct machine data using the “Coupled motion” function and perform a warm restart (see Start-up Guide).
Scan
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Explanation
Remedy
Scan
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Explanation
Remedy
Scan
Effect
Explanation
Remedy
Scan
Effect
Explanation
Remedy
1 Alarms
1.5.1 Alarm description
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