AUMA SA3 - 7 Signals; Signals Via SIL Module; SIL Fault Signal Via Standard Controls Display (for Troubleshooting Support)

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7 Signals
7.1 Signals via SIL module
The integrated SIL module signals a SIL fault via an output contact (SIL ready or SIL
failure outputs). Only these signals may be used in a safety-related system.
For the signal behavior of the SIL ready/SIL failure outputs, refer to <Installation>
chapter.
Once a SIL fault occurs, the system has to be checked immediately and the installation has to
be put in a safe state, if required.
7.2 SIL fault signal via standard controls display (for troubleshooting support)
If the SIL module output contact (SIL ready or SIL failure outputs) signals a SIL fault,
the exact fault can be determined via the indication in the standard controls display. For
details on all fault indications and warning indications on the standard controls display, refer
to manual (Operation and setting) 3.XX /NI.
The SIL module output contact serves as collective signal for the faults listed in the table
below.
Table 9: Individual signals of SIL fault collective signal
Indication on display
Standard controls
Description/
Cause of the fault
Impact on safety function
-- Remedy
Thermal fault
Thermo Switch provided in the
MOTOR is tripped.
●
The Safe ESD safety function cannot be executed.
●
If the fault is triggered during safety operation,
operation is stopped.
Remedy
-- Cool down, wait.
Torque fault CLOSE
Torque fault OPEN
Torque fault in directions
CLOSE or OPEN
Torque fault in directions
CLOSE and OPEN (simultan-
eously).
●
The Safe ESD safety function cannot be executed.
●
If the fault is triggered during safety operation,
operation is stopped.
Remedy
-- Execute operation command in opposite direction.
-- Verify torque setting.
-- Check whether foreign object prevents the valve from
closing.
-- Possibly problems with the valve.
Wrn range act.pos.
Both limit switches (OPEN and
CLOSED) are operated simul-
taneously.
Possibly defect at actuator
mechanics.
●
The Safe ESD safety function cannot be executed.
●
If the fault is triggered during safety operation,
operation is stopped.
Remedy
-- Verify reduction gearing settings within the actuator.
-- In case of possible defect at the actuator: Contact
AUMA service
Phase fault
One phase of power supply is
missing.
Controls are not supplied with
mains voltage
●
The Safe ESD safety function cannot be executed.
●
The Safe STOP safe function is indirectly executed
as the motor is no longer supplied with power.
Remedy
-- Test/connect phases.
Control Supply Fault
110 V AC
Fault of internal 110 V AC
power supply.
The safety-related part of con-
trols is without power supply
●
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.
No signal in display
Internal error SIL module elec-
tronics sub-assembly.
It might not be possible to execute the Safe ESD and
Safe STOP safety functions.
Remedy
-- Possible defect at SIL module: Contact AUMA
service
Fault of redundant wiring of
Safe ESD input.
Both signals Safe ESDa and
Safe ESDb are not simultan-
eously on the same level.
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.
Multi-turn actuators
SA series with Control 3.XX /NI/SIL