Siemens SINUMERIK 840D sl Function Manual page 422

Diagnostics
10.2 NCK safety alarms for Sinumerik 840D sl
27097
Explanation
Response
Remedy
Program
continuation
27100
Explanation
10-422
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
SPL not started
After the time defined in MD SAFE_SPL_START_TIMEOUT expired,
the SPL had not started. Please note MDs 13310:
$MN_SAFE_SPL_START_TIMEOUT and 10096
$MN_SAFE_DIAGNOSIS_MASK, bit 1.
Alarm display
Find the reason why SPL did not start. Possible causes could be:
– There is either an NC or drive fault (e.g. after replacing an encoder,
Emergency Stop, PROFIsafe alarms)
– There is a syntax error in the SPL itself
– A safety alarm is present (e.g. "safe end position exceeded")
– At PROG_EVENT start, the name or path of the SPL was not
correctly written to; observe upper and lower case letters
– Simultaneous start of an ASUB and PROG_EVENT, parameterizing
MD 11602 (stop reasons, read-in inhibit)
– Problems when calling FB4/FC9
Clear the alarm with the reset key. Restart the part program
At least one axis is not safely referenced
There are two reasons for this alarm:
– the machine position of at least one of the axes monitored with SI
has not been acknowledged by the user or
– the machine position of at least one of the axes monitored with SI
has still not been verified by subsequent referencing
Even if the axis is already referenced there is no acknowledgement that
referencing has supplied the correct result. For example, incorrect
results 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 referencing process.
When the user agreement has been set for the first time, the axis must
be subsequently referenced each time that the control is booted (when
absolute encoders are used, this subsequent referencing is
automatically executed). This procedure is carried-out to verify the stop
position saved prior to powering-down the control.
The alarm display can be set in MD
$MN_SAFE_ALARM_SUPPRESS_LEVEL (MD<3) in such a way that
incorrect referencing is displayed separately for each axis.
© Siemens AG, 2006. All rights reserved
03.06