Customer connectionsSignalDesignation
Wiring diagram
XF 16Reference potential for FS ready/FS fault signalsFS ready com.
XF 20, XF 38NC contact of LSO signal (end position OPEN)
May only be used for FQM fail safe units of variant 2 (➭ page 6, Valid
device types).
LSO 38-20=NC
XF 19, XF 21NO contact of LSO signal (end position OPEN)LSO 19-21=NO
XF 22, XF 24NO contact of LSC signal (end position CLOSED)LSC 22-24=NO
XF 23, XF 35NC contact of LSC signal (end position CLOSED)
May only be used for FQM fail safe units of variant 2 (➭ page 6, Valid
device types).
LSC 35-23=NC
Further information on FS faults and in particular for support during troubleshooting:
➭ page 21, Signals
➭ Operation instructions Fail safe unit FQM 05.1 – FQM 12.1/FQMEx 05.1 –
FQMEx 12.1.
5.2. Commissioning
The operation instructions pertaining to the device must be observed for general
commissioning.
Information
The following faults may occur if the end stop setting within the fail safe unit or the
limit switch setting in the actuator are incorrect or imprecise:
●
Valve is not completely closed (if the FQM end stop is reached prematurely)
●
No end position feedback signal in spite of closed valve (since limit switches
have not tripped)
Information
During Safe ESD function, an operation into the safe position with wound spring is
possible irrespective of settings or service condition of electric actuator.This means,
the safe fail unit can start operation at any time once the safety function has been
triggered.
The safe function must be verified when finalising commissioning.This verification
can be made by applying the proof test. Refer to page 24, Proof test (verification of
safe actuator function).
5.3. Operation
Prerequisite for safe operation is the regular maintenance and device checks at the
T
proof
intervals as defined by the operator. The parameters indicated in the <Safety
figures> chapter are valid for T
proof
= 1 year.
The operation instructions pertaining to the device must be observed for operation.
In case of possible failures or defects of the safety system, safe function must be
guaranteed by introducing alternative actions. Furthermore, a detected fault including
fault description has to be sent to AUMA Riester GmbH & Co. KG. Autonomous
repair work by the plant operator is not permitted.
5.4. Lifetime
Actuator lifetime is described in the technical data sheets or the operation instructions.
In addition to the indications in the technical data, the lifetime is restricted to 500 fail
safe initialisations (including partial operations such as PVST).
Safety-related parameters are valid for the cycles or modulating steps defined in the
technical data specifications for typical periods of up to 10 years (the criterion
achieved first is valid). After this period, the probability of failure increases.
Extending this period is basically feasible in many cases “provided both manufacturer
and operator introduce respective actions” in compliance with footnote N3 of NOTE
3 of the German version of IEC 61508-2:2010 7.4.9.5 b).This is the responsibility
of the operator who will have to take appropriate and suitable measures.These
measures must at least include a service by AUMA Riester GmbH & Co. KG.The
above mentioned 500 fail safe cycles must not be exceeded.
18
Installation, commissioning and operation with non safety-related actuators
To Next Page
Loading...
