8 Application examples 11.03
8.8 Example for combining SI with ESR
© Siemens AG 2003 All Rights Reserved
8-474 SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
•
The protective door switch fails in one channel. This is the reason that as a
result of the crosswise data comparison of the SPL, a stop D is initiated
after 1 s.
• The protective door switch fails in one channel. This is the reason that as a
result of the crosswise data comparison of the NCK and drive, a stop F
with subsequent Stop B/A is initiated at the earliest after the time specified
in MD $MA_SAFE_MODE_SWITCH_TIME.
• Any other failure results in a crosswise data comparison error for the NCK
and drive and therefore, in turn, to a Stop F/B/A.
• If the communications to the drive fail (drive bus failure), then the pulses
are immediately cancelled. This therefore prevents ESR being
autonomously executed in the drive (as drive-based function)
These hazardous locations are removed as follows:
1.) Stop E is activated as response to the speed being exceeded in
SG2 and for SPL crosswise comparison errors:
MD 10097 $MN_SAFE_SPL_STOP_MODE = 4
Default value 3. For errors in the crosswise data comparison of the SPL
(Alarm 27090), with the value 4, a Stop E is initiated instead of a Stop D. At the
same time, bit DB18.DBX36.1 must be set in the PLC:
SET
= DB18.DBX36.1 (enable Stop E)
MD 36901 $MA_SAFE_FUNCTION_ENABLE[AX1]=51;
X axis: SG/SBH + external Stop E
MD 36901 $MA_SAFE_FUNCTION_ENABLE[AX2]=53;
Y axis: SG/SBH + SE + external Stop E
Note:
All axes with $MA_SAFE_FUNCTION_ENABLE not equal to 0
must have enabled
the
external Stop E, if
$MN_SAFE_SPL_STOP_MODE = 4 was parameterized.
MD 36961 $MA_SAFE_VELO_STOP_MODE [AX1]=5;
$MA_SAFE_VELO_STOP_REACTION
MD 36961 $MA_SAFE_VELO_STOP_MODE [AX2]=5;
becomes effective for axes X and Y
MD 36963 $MA_SAFE_VELO_STOP_REACTION [1,AX1]=3;
Stop D for SG1, axis X
MD 36963 $MA_SAFE_VELO_STOP_REACTION [2,AX1]=14;
Stop E for SG2 axis X, pulses are not cancelled when the bus fails
MD 36963 $MA_SAFE_VELO_STOP_REACTION [1,AX2]=3;
Stop D for SG1, axis Y
MD 36963 $MA_SAFE_VELO_STOP_REACTION [2,AX2]=14;
Stop E for SG2 axis Y, pulses are not cancelled when the bus fails
2.) Parameterizing a Stop E:
MD 36954 $MA_SAFE_STOP_SWITCH_TIME_E[AX1] = 3.5;
3.5 s because ESR was parameterized to 3.1 s
MD 36954 $MA_SAFE_STOP_SWITCH_TIME_E[AX2] = 3.5;
3.5 s because ESR was parameterized to 3.1 s
Eliminating the
hazardous locations
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