ABB AC500-S Safety User Manual page 69
Safety programmable logic controllers system
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Also See for AC500-S:
- Safety user manual (404 pages) ,
- Application note (24 pages) ,
- System manual (119 pages)
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ID*
From
(25)
RUN (module
passivation with
a command)
(26)
RUN (module
passivation with
a command)
(27)
RUN (channel
passivation &
reintegration)
(28)
RUN (channel
passivation &
reintegration)
(29)
RUN (user
acknowledge-
ment request)
(30)
RUN (module
passivation)
(31)
RUN (module
passivation)
(32)
RUN (module
passivation with
a command)
* Numbers are transitions in
30.03.2017
To
INIT
RUN (ok)
RUN (module
passivation)
RUN (module
passivation with
a command)
RUN (channel
passivation and
reintegration)
RUN (ok)
RUN (module
passivation)
RUN (channel
passivation and
reintegration)
Ä Fig. 13 and Ä Fig. 14
AC500-S
AC500-S Safety Modules
Generic Safety I/O module behaviour > Safety I/O module states
Description
Powering off/on
n
No module error
n
Command activate_FV_C = 0
PROFIsafe watchdog, PROFIsafe communication
error or undervoltage/overvoltage was detected.
Note: In this transition, it is possible that
WD_timeout bit of PROFIsafe F-Host instance
toggles if watchdog timeout is periodically recog-
nized by the Safety I/O module.
"activate_FV_C = 1" command was sent from the
PROFIsafe F-Host stack
This transition is possible only if channel error
was identified before or during module passiva-
tion. As a result, after module reintegration one of
the channel tests directly brings Safety I/O
module to RUN (channel passivation & reintegra-
tion state).
If the threshold shut-down value was not reached
during undervoltage phase and the process
voltage is back in the normal range, the Safety
I/O module reintegrates and goes to RUN (ok)
state automatically.
If the threshold fuse value was not reached
during overvoltage phase and the process
voltage is back in the normal range, the Safety
I/O module reintegrates and goes to RUN (ok)
state automatically.
If process undervoltage event was detected two
times within 1 second, then the Safety I/O module
remains in RUN (module passivation) state.
This transition is possible only if channel error
was identified during RUN (module passivation
with a command) state. As a result, after com-
mand activate_FV_C = 0, Safety I/O module goes
to RUN (channel passivation & reintegration
state).
69
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