Siemens Sinumerik 840D sl Diagnostic Manual page 404

Overview of Alarms
NCK alarms
27001 Axis %1 error in a monitoring channel, code %2, values: NCK %3, drive
%4
Parameters: %1 = Axis number
%2 = Additional info cross-comparison index
%3 = NCK comparison value extension
%4 = Additional info comparison value drive
Definitions: Between the two monitoring channels (NCK and drive) a mutual comparison of the state of the safety-
related monitoring functions is performed cyclically. For each NCK/drive combination the comparison
is performed separately.
Per monitoring cycle (MD10091 $MN_INFO_SAFETY_CYCLE_TIME) a criterion of a comparison list
is compared between NCK and drive, in the next monitoring cycle the next criterion, etc. As soon as
the complete comparison list has been executed, exeution of the comparions starts again. The result-
ing total comparison time for an execution of the list is displayed in MD10092
$MN_INFO_CROSSCHECK_CYCLE_TIME (factor x MD10091
$MN_INFO_SAFETY_CYCLE_TIME - the factor may differ in the various software versions).
The alarm "Defect in a monitoring channel" is output, if the mutual comparison of the two monitoring
channels has found a difference between input data or results of the monitoring operations. One of
the monitors no longer functions reliably.
The cross-checking index output under %2 is also called STOP F code. In alarm 27001 the STOP F
code is also ouput, at which the NCK has found a cross checking error for the first time.
The STOP F code of the drive (belonging to alarm F30611) can be found in the diagnosis screen or
in parameter r9795. If there is a difference in several comparison steps, several STOP F codes can
be displayed at these positions alternatively.
There are fault profiles that can be detected by several comparisons of the comparison list, i.e. the
displayed STOP F code value does not always provide clear informationen about the error cause. the
relevant procedure is explained with the individual error codes:
- 0 Nor error found in this channel; following alarm to drive alarm F01711.
- 1 Result list 1: Difference in SBH, SG, SBR or SE result, e.g. due to different activation of the mon-
itoring channels. For further information see drive parameters r9710[0], r9710[1].
- 2 Result list 2: Difference in SN, n_x result. For further information see drive parameters r9711[0],
r9711[1].
- 3 Actual value difference greater than setting in MD36942 $MA_SAFE_POS_TOL.
- 4 Not assigned.
- 5 Function enables MD36901 $MA_SAFE_FUNCTION_ENABLE.
- 6 Velocity limit MD36931 $MA_SAFE_VELO_LIMIT[0].
- 7 Velocity limit MD36931 $MA_SAFE_VELO_LIMIT[1].
- 8 Velocity limit MD36931$MA_SAFE_VELO_LIMIT[2].
- 9 Velocity limit MD36931$MA_SAFE_VELO_LIMIT[3].
- 10 Tolerance for safe operational stop MD36930 $MA_SAFE_STANDSTILL_TOL.
- 11 Safe position limit MD36934 $MA_SAFE_POS_LIMIT_PLUS[0].
- 12 Safe position limit MD36935 $MA_SAFE_POS_LIMIT_MINUS[0].
- 13 Safe position limit MD36934 $MA_SAFE_POS_LIMIT_PLUS[1].
- 14 Safe position limit MD36935 $MA_SAFE_POS_LIMIT_MINUS[1].
- 15 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[0] + MD36940 $MA_SAFE_CAM_TOL.
- 16 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[0].
- 17 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[0] + MD36940 $MA_SAFE_CAM_TOL.
- 18 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[0].
- 19 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[1] + MD36940 $MA_SAFE_CAM_TOL.
- 20 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[1].
- 21 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[1] + MD36940 $MA_SAFE_CAM_TOL.
- 22 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[1].
- 23 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[2] + MD36940 $MA_SAFE_CAM_TOL.
- 24 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[2].
- 25 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[2] + MD36940 $MA_SAFE_CAM_TOL.
- 26 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[2].
- 27 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[3] + MD36940 $MA_SAFE_CAM_TOL.
- 28 Cam position MD36936 $MA_SAFE_CAM_POS_PLUS[3].
- 29 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[3] + MD36940 $MA_SAFE_CAM_TOL.
- 30 Cam position MD36937 $MA_SAFE_CAM_POS_MINUS[3].
- 31 Actual position tolerance MD36942 $MA_SAFE_POS_TOL. MD36949
$MA_SAFE_SLIP_VELO_TOL for active actual value synchronization (slippage)
- 32 Ref. position tolerance MD36944 $MA_SAFE_REFP_POS_TOL.
- 33 Delay SG[x] -> SG[y] MD36951 $MA_SAFE_VELO_SWITCH_DELAY.
2-404
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009