Switching The System On/Off - Siemens SINUMERIK 840D sl Function Manual

03.06
Note
S To ensure that SBH can always be selected in the event of an error, the
function SBH/SG must be activated and appropriately parameterized when the
function SE and/or SN are(is) enabled.
S The axis-specific enable data in the NCK must match those in the drive,
otherwise, the crosswise data comparison signals an error.
S An SI axis is treated as an axis in terms of the global option if at least one
safety-related function is activated via the axis-specific enable data.
S The maximum number of axes that may operate with SI and SPL SGE/SGAs is
the number that was enabled using the options.
5.6

Switching the system on/off

Warning
!
After hardware and/or software components have been changed or replaced, it is
only permissible to boot the system and activate the drives when the protective
devices are closed. Personnel may not be in the hazardous area.
Depending on the change made or what has been replaced, it may be necessary
to carry-out a partial or complete acceptance test (see Section 9.5 "Acceptance
test").
Before persons may re-enter the hazardous area, the drives should be tested to
ensure that they exhibit stable control behavior by briefly moving them in both the
plus and minus directions (+/–).
What has to be observed when powering-up?
The safety-related functions are only available and can be activated after the sys-
tem has completely booted.
We recommend that the "safe operating stop (SBH)" function is selected.
For axes with SE/SN, the stop position is used to internally check the position
when powering-up.
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Basics on the Safety Functions Integrated in the System/Drive
5.6 Switching the system on/off
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