Samson TROVIS 3730-3, Монтаж и эксплуатация

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122 EB 8384-3 EN
Malfunctions
Example:
S
Example:
Error caused by pin po-
sition
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Refer to the code list (section 11.4) for
possible causes and the recommended
action.
Fault alarm output
'Maintenance alarm' as the condensed state
causes the optional fault alarm output to be
switched.
−
The 'Function check' condensed state can
also activate the fault alarm output
(Code 32).
− The 'Maintenance required/Maintenance
demanded' condensed state and 'Out of
specification' can also activate the fault
alarm output (Code 33).
9.0.1 Confirming error
messages
Enable configuration:
1. Turn until Code 3 appears (read -
ing: No).
2. Press , the code number 3 blinks.
3. Turn until
YES appears.
4. Press to confirm (reading: ).
Confirming error message:
1. Turn until the the error code that
you want appears.
2. Press to confirm the error message.
9.1 Emergency action
Fail-safe action is triggered by the i/p con -
verter or solenoid valve and upon supply air
failure. The positioner fully discharges its
pneumatic output to the atmosphere, causing
the mounted actuator to be vented. As a re-
sult, the valve moves to the fail-safe position.
The fail-safe position depends on how the
springs are arranged in the pneumatic actu-
ator (air-to-close or air-to-open).
When the supply air fails, the optional sole -
noid valve or forced venting is triggered and
after reaching the shutdown signal, all posi-
tioner functions, except open/closed loop
control, remain active (including diagnostics,
HART
® communication as well as position
and status feedback).
Emergency action in the event of valve or ac -
tuator failure is described in the associated
valve and actuator documentation.
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The plant operator is responsible for
emergency action to be taken in the
plant.
Tip