Siemens SINUMERIK 840D sl Function Manual page 638

Diagnostics
11.2 NCK safety alarms for SINUMERIK 840D sl
27012 Axis %1 safe limit position exceeded
Response NC start disable in this channel
NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
This axis is stopped with STOP C, D or E, according to the configuration in MD36962
$MA_SAFE_POS_STOP_MODE.
Remedy If no obvious operator error has occurred: Check the input value of the machine data, check safe input signals:
was the correct one of 2 limit positions selected? The alarm is output again as long as the axis is not at the
limit position. To traverse the axis again, you can either
● manually return the axis,
● switchover to another limit switch pair so that the axis is again in the permissible range,
● delete the user agreement and initiate a PO reset.
Alarm "Axis no longer safely referenced" is displayed and the limit switch monitoring functions are
deactivated. Retract the machine so that it returns to the permissible range. Then issue the user
agreement again.
Program con‐ Clear the alarm with the RESET key. Restart the part program.
tinuation
Withdraw the user agreement for this axis. Then press the RESET key. The program is aborted and the alarm
reset.
Move the axis - in the JOG mode - to the valid traversing range.
After the NC program error has been resolved and the position of this axis carefully checked, the user agree‐
ment can be re-issued and the program can be restarted.
27013 Axis %1 Safe Acceleration Monitor exceeded
Parameter %1 = axis name, spindle number
Explanation After the initiation of STOP B or C, the speed exceeded the tolerance value entered in MD36948
$MA_SAFE_STOP_VELO_TOL.
Response Mode group not ready
Channel not ready
NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
The pulses are locked by initiating a STOP A.
Remedy Check MD36948 $MA_SAFE_STOP_VELO_TOL. Check the braking characteristics of the drive involved.
Program con‐ Switch the control OFF - ON.
tinuation
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Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated