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zone if all zone nodes acknowledge a safe state. As soon as one zone node
does not acknowledge the safety anymore, the zone master generates the zone
status "not safe" for the safety zone.
9.7.3
Notes on commissioning
To set up a safety zone, the zone nodes have to be configured accordingly. Axes
operated in a safety zone via the ctrlX SAFETYlink have to be configured as
zone nodes.
The zone master provides 16 safe input signals configuration-independent to
the zone nodes via the ctrlX SAFETYlink for evaluation purposes.
For zone acknowledgement it is irrelevant whether the zone nodes are in one or
several master communication rings.
It is recommended to commission the safety zone in the following order:
● Connect the zone master and a zone node via ctrlX SAFETYlink
● Check whether the selection and acknowledgment via the ctrlX SAFETYlink
● Loop second zone node into the safety zone and commission it.
● Loop third zone node into the safety zone and commission it.
● ...
● Loop last zone node into the safety zone and commission it.
If a safety technology error is present at a zone node, this node only acknowl-
edges safety via the zone bus under the following requirements:
● The node has reached a safe state and
● HTF (minimum hardware error tolerance)="1" can still be maintained (i.e.
If a zone node is switched to state "SMO configuration mode" (CM) in a safety
zone (change down from PM → CM), the zone node does not acknowledge the
safety. ctrlX SAFETYlink continues to run, i.e. all other zone nodes continue
to run to receive input signals and can report their safety status to the zone
master.
As the zone nodes have different boot times, the zone nodes reports the error
F7035 only the first 30 seconds after switching the control voltage on if the
communication via the ctrlX SAFETYlink is not established.
9.8
Safe zone error (SZE)
9.8.1
Brief description
If there are multiple axes in a danger zone at a machine, it is useful to combine
them in a safety zone. A safety control [e.g. ctrlX SAFETY (SAFEX-C.1*)] allows
to combine up to 16 axes in a safety zone via ctrlX SAFETYlink. The zone setup
is independent of the selection of the safety functions (e.g., ctrlX SAFETYlink,
discrete or via the safe master communication) at the individual axes.
Using the "Safe zone error "(SZE) function, it is possible for zone nodes to
quickly signal locally present safety technology errors (errors of the categories
F3xxx, F7xxx or F83xx) to all zone nodes via the ctrlX SAFETYlink. Depending
on their configuration, the zone nodes react to the zone error or not (for reac-
tion times see
A requirement to use the "Safe zone error" (SZE) function is a safety zone
generated via a ctrlX SAFETYlink with a zone master [e.g. ctrlX SAFETY (SAFEX-
C.1*)] and configured drives.
R911404905, Edition 02
(XG42 / XG43) and commission it.
work without error.
the safe state is not endangered by the occurrence of another error, e.g.
error in output stage switch-off, encoder error, etc.).
Performance).
⮫
ctrlX SAFETY "SafeMotion"
Safe zone error (SZE)
Bosch Rexroth AG
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