Siemens SINUMERIK 840D sl Function Manual page 459

05.08
20149
Parameter
Explanation
Response
Remedy
Program
continuation
27000
Parameter
Explanation
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
10.2 NCK safety alarms for SINUMERIK 840D sl
Channel %1 block%2 motion synchronous action: Index invalid
%1 = channel number
%2 = block number
When accessing a variable in the motion synchronous action, an invalid
index was used.
Example: ...DO $R[$AC_MARKER[1]] = 100
The error occurs if marker 1 has a higher value than the maximum per-
missible R parameter number.
NC start inhibit in this channel
Interface signals are set
Alarm display
NC stop for alarm
Use a valid index.
Clear the alarm with the RESET key. Restart the part program.
Axis %1 is not safely referenced
%1 axis number
There are two reasons for this alarm:
– the user has still not acknowledged the machine position,
– the machine position has not yet been verified through follow–up
referencing.
Even if the axis is already referenced there is no acknowledgement that
referencing has supplied the correct result. For example, incorrect re-
sults can occur if the axis was moved after the control was powered–
down – with the result that the stop position saved prior to powering–
down is no longer correct. To ensure that this does not happen, the
user must acknowledge the displayed actual position after the first ref-
erencing operation.
After the user agreement has been set for the first time, the axis must
be subsequently referenced each time that the control is booted (with
absolute encoders, this subsequent referencing is automatically exe-
cuted). This procedure is carried out to verify the stop position saved
prior to powering–down the control.
The alarm display can be set using MD $MN_SAFE_ALARM_SUP-
PRESS_LEVEL (MD>=3) so that the group alarm 27100 is displayed
for all SI axes.
Diagnostics
10-459