Siemens SINUMERIK 840D sl Function Manual page 496

Diagnostics
10.2 NCK safety alarms for SINUMERIK 840D sl
Response
Remedy
Program
continuation
27005
Parameter
Explanation
Response
Remedy
Program
continuation
10-496
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Interface identifier, drive input (%4):
DBX<byte><bit>=<value>
<byte> = byte number in the axial DB (22, 23, 32, 33)
<bit> = bit number in the byte (0...7)
<value> = value of the drive SGE (0,1)
This alarm can be suppressed using the MD $MN_SAFE_DIAGNO-
SIS_MASK, bit 0=0.
Alarm display
Check the interface of the safety–related input signals (SPL parameter-
ization, PLC–DB supply).
Clear the alarm with the RESET key. Restart the part program.
Axis %1 error for crosswise data comparison: Static
difference
%1 = axis number
A difference in the actual values was detected using the crosswise data
comparison between NCK and drive monitoring channel. This differ-
ence is greater than the maximum tolerance defined in MD
$MA_SAFE_POS_TOL. This can be checked using the safe position
actual values of the two monitoring channels displayed in the service
screen.
The alarm is only displayed, if monitoring with absolute reference
(SE/SN) has been enabled for the specified axis and if the user agree-
ment has been set. As soon as the user agreement is deleted or the
actual difference between the two monitoring channels again drops be-
low the maximum permissible difference, the alarm is cleared.
Alarm display
The user agreement must be deleted if the alarm is present as a
steady–state alarm. When the control is then rebooted, the machine
can be brought into the safe state again and operation resumed by a
new referencing process and setting the user agreement. Prior to set-
ting the user agreement, the actual position of the axis displayed in the
"User enable" screen must be compared with the current machine posi-
tion. This is absolutely necessary to ensure proper functioning of the
safe limit positions (SE) and safe cams (SN).
The user agreement can only be changed in key–actuated switch set-
ting 3 or after entering a password.
The alarm is no longer displayed when the alarm cause has been re-
moved. No other operator actions are required.
actual value
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05.08