Siemens SINUMERIK 840D sl Function Manual page 678

Diagnostics
11.2 NCK safety alarms for SINUMERIK 840D sl
27252 PROFIsafe: Slave/Device %1, Bus %2, sign-of-life error
Response Mode group not ready
NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
Stop D/E is initiated. A STOP D/E is initiated (this can be set using MD10097
$MN_SAFE_SPL_STOP_MODE) on all axes with safety functionality.
Stop the PROFIsafe driver involved. Stopped PROFIsafe driver of type F-DI or F-DIO F-modules - output
failsafe values (0) towards the SPL as F-net data.
Remedy Check the DP/PN wiring. Restart the F-modules. Restart the NCK/PLC.
Program con‐ Clear the alarm with the RESET key. Restart the part program.
tinuation
27253 PROFIsafe: Communications fault F-master component %1, error %2
Parameter %1 = faulty components
%2 = error detection
Explanation The F-master signals a communication error between the NCK and PLC.
The component with error is specified in %1:
● PLC: The PLC no longer executes the OB40 request.
● PLC-DPM: DP master is no longer in the OPERATE state.
The fault ID in %2 provides more detailed information about the cause:
● 1, 2, 4 PLC processing of the OB40 not finished.
Response Mode group not ready
NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
A STOP D/E is initiated (this can be set using MD10097 $MN_SAFE_SPL_STOP_MODE) on all axes with
safety functionality.
Stop the PROFIsafe driver involved. Stopped PROFIsafe driver of type F-DI or F-DIO F-modules - output
failsafe values (0) towards the SPL as F-net data.
Remedy Extend the PROFIsafe cycle time using MD10098 $MN_PROFISAFE_IPO_TIME_RATIO.
Program con‐ Remove the error. After changing the F-clock cycle, POWER ON
tinuation
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Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated