VisualMotion 9 Troubleshooting Guide Monitoring and Diagnostics 3-47
DOK-VISMOT-VM*-09VRS**-WA02-EN-P
551 Master Slip Config. Error, see ext. diag
Cause:
A Slip Monitoring configuration error has occurred. Refer to the extended
diagnostic message for details.
Remedy:
Refer to the extended diagnostics for details. Extended diagnostics can
be viewed by selecting Diagnostics ⇒
⇒⇒
⇒ System in VisualMotion Toolkit.
Extended Diagnostics C-0-0124 Description
Invalid Master Selected The Primary or Secondary ELS Master
selected in the Slip Monitoring configuration is
invalid (the masters must be between 1 and 6
and must be active).
Max. Dev. Window Out of Range The Maximum Deviation Window value must
be in the range:
-90.0 <= MaxDevWin <= 90.0
Mast. Pos. Offset Out of Range The Master Position Offset value must be in
the range:
-180.0 < MastPosOff <= 180.0
Table 3-17: Master Slip Config. Error Extended Diagnostics
552 Excessive Master Position Slip Deviation
Cause:
The slip between the Primary and Secondary ELS Masters has exceeded
the value of the Maximum Deviation Window variable
ELS_MSTR_SLIP_WINDOW.
553 Invalid Parameter Detected, see C-0-2002
This communication error is issued if a wrong CRC(Cyclic Redundancy
Check: a mathematical method to verify data validity) has been detected.
The calculation of a CRC is only necessary when writing a parameter that
has to be stored permanently. This narrows the number of parameters to
those, which are stored in autostore. To ensure data consistency during a
power failure, a buffer mechanism is used. Each parameter has its own
CRC. All CRCs are checked either on boot up, or every time the system
is switched from Phase 2 to Phase 4. The user must fix any invalid
parameter by writing to it (even if the same value is written to it) before he
can switch successfully to Phase 4.
554 Excessive Deviation in PGM%d, see ext. diag.
The Position Group Monitoring (PGM) function executes every SERCOS
cycle. Each group is scanned to see if it is ENABLED. If enabled, then
the groups Master_Position_Window is calculated. Afterwards this value
is compared to each of the slave’s positions (plus their Offsets) to see if it
exceeds the Master_Position_Window value. This error is issued when
an excessive deviation is encountered in the Master_Position_Window of
PMG%d (where %d = PGM number).
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