Siemens SINUMERIK 840D sl Function Manual page 406

Diagnostics
10.2 NCK safety alarms for Sinumerik 840D sl
27004
Parameter
Explanation
Response
Remedy
Program
continuation
10-406
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Axis %1 difference safe input %2, NCK %3, drive %4
%1 = axis number
%2 = monitoring function involved
%3 = interface identifier, NCK input
%4 = interface identifier, drive input
A difference has been detected at the specified safe input. The state of
the specified input signal differs in the two monitoring channels NCK
and drive during the time set in $MA_SAFE_MODE_SWITCH_TIME.
Monitoring function involved (%2):
SS/SV Difference in SGE "de-select safe operating stop /
safely-reduced speed"
SS Difference in SGE "de-select safe operating stop"
SV Difference in SGE "select safely-reduced speed"
SP Difference in SGE "select safe limit positions"
SVOVR Difference in SGEs "select SG correction"
For the case that SGE is parameterized at the SPL interface
<io> = parameterized system variable range (01=$A_INSID,
02=$A_INSED)
<dword> = system variable - double word (1,2)
<bit> = bit number in the system variable - double word (1...32)
<value> = value of the NCK-SGE (0,1)
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_DIAGNOSIS_MASK, bit 0=0.
Alarm display
Check the interface of the safety-relevant input signals (SPL
parameterization, PLC-DB supply).
Clear the alarm with the RESET key. Restart the part program.
© Siemens AG, 2006. All rights reserved
03.06