Impact on safety function
→ Remedy
Description/
Cause of the fault
Indication on display
Standard actuator
controls
In case of wrong phase sequence, the actuator is operated into the
wrong direction during safety operation.
Remedy
→ Correct the sequence of the phase conductors L1, L2 and L3 by
exchanging two phases.
The phase conductors L1, L2
and L3 are connected in the
wrong sequence.
Incorrect phase seq
●
The Safe ESD safety function cannot be executed.
●
If the fault is triggered during safety operation, operation is
stopped.
●
The Safe STOP safe function is indirectly executed as the SIL
module is no longer supplied with power.
Remedy
→ Check power supply.
Fault of internal 24 V AC
power supply.
The safety-related part of con-
trols is without power supply.
IE 24 V AC
It might not be possible to execute the Safe ESD and Safe STOP
safety functions.
Remedy
→ Controls must cool down (for display of the current temperature,
check controls under: Diagnostics M0022>Device temperatures
M0524>Temp. controls).
→ Check service conditions.
Temperature within controls
housing too high (outside the
specified temperature range).
Wrn controls temp.
It might not be possible to execute the Safe ESD and Safe STOP
safety functions.
Remedy
→ Possible defect at SIL module: Contact AUMA service
Internal error SIL module elec-
tronics sub-assembly.
No signal in display
The Safe ESD safety function can possibly not be executed.
Remedy
→ In case of possible defect at the actuator: Contact AUMA service
Actuator monitoring
Actuator locked during manual
operation.
Possible defect at actuator.
The Safe ESD safety function can be executed. A SIL fault is indic-
ated via SIL fault output.
Remedy
→ Check redundant control of Safe ESD signals.
Fault of redundant wiring of
Safe ESD input.
Both signals Safe ESDa and
Safe ESDb are not simultan-
eously on the same level.
7.3. Status signals via output contacts (digital outputs) of standard actuator controls
Actuator controls offer the possibility of signalling status information on safety-related
functions via output contacts (DOUT outputs).
Information
Status signals via DOUT outputs are not part of a safety function! They may not be
used in lieu of safety-related signals within a safety instrumented system. However,
they can be used as additional information on the standard PLC, for example.
Information
If digital inputs or outputs of standard actuator controls are connected to the safety
PLC, imperatively ensure sufficient absence of interference of all non-safety-related
system components with regard to the safety function.The absence of interference
must be guaranteed even in case of standard component faults. For this, galvanic
isolation between safety-related and non safety-related system components is im-
portant (but not necessarily sufficient).
Available signals:
Safe ESD
Safe STOP
SIL fault
SIL function active
Assignment via menu in the display:
Required user level: Specialist (4) or higher.
Device configuration M0053
I/O interface M0139
Digital outputs M0110
25
Part-turn actuators
with AC 01.2-SIL/ACExC 01.2-SIL Signals
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