Interaction With Other Functions - Siemens SINUMERIK 840D sl Function Manual

Interaction with Other Functions

11.1 Limiting the speed setpoint
The setpoint speed is parameterized as a function of the active safety monitoring
in MD 36933: $MA_SAFE_DES_VELO_LIMIT. This machine data is not included
in the axial checksum MD 36998: $MA_SAFE_ACT_CHECKSUM, so that changes
can be make to the MD for the acceptance test without having to again change the
checksum.
MD = 0%:
Setpoint limiting not active
MD > 0%:
Setpoint limiting = active SG limit multiplied by the MD value
For SBH, setpoint limit = 0
MD = 100%:
Setpoint limit = active SG limit
For SBH, setpoint limit = 0
S The function is effective in one channel in the NCK interpolator. The safety
monitoring channel provides a limit value that corresponds to the selected
safety monitoring type.
S This function influences both axes and spindles.
S The active setpoint limit can be viewed in the safety service screen:
Display value = –1.
Display value >= 0.
S The setpoint limit is changed–over when the SGE is changed–over:
SGE
SGE
SGEs
SGEs
Further, internal changeover operations in SBH have an effect as a result of a
stop response (STOP D, C, E).
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
corresponds to "setpoint limiting not active"
corresponds to "setpoint limiting active"
"SBH/SG deselection"
"SBH deselection"
"Active SG stage, bit 0,1"
"SG override, bit 0, 1, 2, 3"
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