Fault Analysis Tables - Siemens SINUMERIK 840D sl Function Manual

03.06
A.2

Fault analysis tables

Based on the appropriate Directives and Standards, a detailed fault analysis is car-
ried-out using
the various disturbances and system faults controlled by SINUMERIK Safety Integrated with
an extremely low residual risk; whereby the basis was disturbances that are already known.
Table A-2 Fault analysis in the setting-up mode
Assumed fault Fault causes
Spindle speed too Defect in the
high drive or control
system,
encoder fault in
2-encoder
operation,
operator error
etc.
Axis speed too high
Axis or spindle has Defect in the
inadmissibly moved drive or control
away from standstill system,
position operator error
etc.
Axes have Defect in the
inadmissibly exited drive or control
operating range system,
operator error,
etc.
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
SINUMERIK Safety Integrated
Fault control
Safe limitation of
speed or axis
velocity with SG;
configurable stop
functions according
to Cat. 2
Safe standstill
monitoring for
position control with
SBH;
configurable stop
functions acc. to
Cat. 0/1 (acc. to
60204)
Safe standstill with
SH
Stop function Cat. 0
configurable stop
functions according
to Cat. 2 (acc. to
EN 60204)
A.2 Fault analysis tables
®
. The subsequently listed brief summary lists
1)
MDIR, Appendix
Chap. 1.2.4
Chap. 1.2.7
Chap. 1.3.6
Chap. 1.2.6
Chap. 1.2.7
Chap. 1.3.6
Chap. 1.4.2
Chap. 1.4.3
Chap. 1.2.4
Chap. 1.2.7
Chap. 1.3.7
Chap. 1.3.8
Appendix
Remarks
According to
currently applicable
standards (TC143),
the SG function –
depending on the
technology – is
only permissible in
combination with
agreement, jog
mode, start button
and Emergency
Stop
According to
currently applicable
standards (TC143),
the SG function is –
depending on the
technology – only
permissible in
combination with
jog mode, start
button and
Emergency Stop
Low-wear safe
disconnection of
the energy feed to
the drive,
This function does
not replace the
main machine
breaker/switch
regarding electrical
isolation
essentially used for
machinery
protection.
It can also be used
to restrict working
zones in
conjunction with
personnel
protection.
A-489