Siemens SINUMERIK 840D Description Of Functions page 48

2 General Information about Integrated Safety Systems
2.12 Error analysis
Table 2-13 Error analysis in automatic mode
Assumed error Error causes
Spindle or axis Defect in the drive
speed/velocity too or control system,
high encoder fault in
2-encoder
operation,
operator error, part
program error or
similar
Axis or spindle Defect in the drive
has inadmissibly or control system,
moved away from operator error, part
standstill position program error, or
similar
Axes have Defect in the drive
inadmissibly or control system,
exited operating operator error, part
range program error or
similar
Response of the Defect in the control,
machine control to operator error, part
incorrect position program error or
signal similar
Error relating to Defective cable,
the input/output of incorrect
process data information, or
similar
Table 2-14 General error analysis
Assumed error Error causes
Error has not Defect in the drive
been detected or control system or
because function similar
is not active
Incorrect safety Incorrect
machine data information,
(MD) operator error or
similar
Incorrect absolute Incorrect
position of axis or information, axis
spindle mechanically
influenced or
similar
1)
refer to: Appendix, References General /1/
2-48
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Error control MDIR, Appendix
Safe limitation of speed Chapter 1.2.4
or axis velocity with SG; Chapter 1.2.7
configurable stop Chapter 1.3.6
functions according to
Cat. 2
Safe standstill Chapter 1.2.6
monitoring for position Chapter 1.2.7
control with SBH; Chapter 1.3.6
configurable stop Chapter 1.4.2
function, Cat. 0/1 Chapter 1.4.3
Safe standstill with SH
Stop function according
to Category 0
"Safe software limit Chapter 1.2.4
switches" SE; Chapter 1.2.7
configurable stop Chapter 1.3.7
functions according to Chapter 1.3.8
Cat. 2
"Safe software cams" Chapter 1.2.4
SN; Chapter 1.2.7
safe signal and position Chapter 1.3.8
data output Chapter 1.4.2
Chapter 1.4.3
Two-channel input/ Chapter 1.2.5
output of safety-relevant Chapter 1.3.8
signals (SGE/SGA), Chapter 1.4.2
crosswise data Chapter 1.4.3
comparison; initiation of
stop functions
according to Cat. 1
Error control MDIR, Appendix
Time-controlled request Chapter 1.2.7
or automatic forced-
checking procedure and
crosswise data
comparison, initiation of
stop functions according
to Cat. 0
Visual check with Accept Chapter 1.2.7
softkeys, crosswise data
comparison, checksum,
initiation of stop functions
according to Cat. 0/1
User agreement Chapter 1.2.7
after referencing or after Chapter 1.3.8
power-up
1)
Comments
According to the status
of the various Standards
(TC143), the SG function
is only permissible with
effective
protective devices and
equipment
(e.g. protective doors)
Low-wear safe shutdown
of the energy feed to the
motor to allow manual
interventions in the
hazardous zone (safe
location).
This function does not
replace the main
machine breaker
regarding electrical
isolation
Wear-free safe limit
switch,
Is essentially used for
machinery protection,
can also be used to
restrict working zones in
conjunction with
personnel protection
Wear-free, "safe
software cams" for
reliable detection of axis
positions,
can be used to
demarcate physical
areas
External two-channel
inputs or further
processing required if
function is intended to
protect operating
personnel
1)
Comments
Forced-checking
procedure must be
supported by the user
depending on the
process
Must be confirmed using
acceptance test during
start-up
The assignment to
machine zero must be
carried-out during start-
up
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11.03